106—Sp’03 Diffusion, Osmosis, & Enzymes pg. If it does, reseal the test tube. Part I of the lab was a demonstration of osmosis and diffusion, that dealt with raisins in different liquid environments, each with a different concentration of. Movement through Cell Membranes – Osmosis and Diffusion Past Exam Questions What is diffusion? In the case of a named molecule, give a precise location at which it diffuses in the human body. Was your hypothesis correct or incorrect? Why? 2. The test is a 40 minute, 40 question multiple-choice test and is scored immediately upon completion. Kit Code (located on the lid of your lab kit):AC-Q0N5WHE Pre-Lab Questions: ” Pre-Lab Questions: ”1. Diffusion and osmosis are somewhat difficult-to-understand scientific concepts that are often best explained through lab activities. In a hurry? Browse our pre-made printable worksheets library with a variety of activities and quizzes for all K-12 levels. What are the two things needed for osmosis to take place? 3. Osmosis is a new app for medical students, designed by medical students, that sends you practice questions and resources so you can learn more and forget less. The instrument used in this study was the Diffusion and Osmosis Diagnostic Test (Odom, 1992). A cell membrane is selectively permeable - not permeable to everything Diffusion and osmosis lab answers. The first one has been done for you. Student Number: Physiology Experiment 1 - Week 5 Diffusion, Osmosis and Membrane Permeability - Practical Report 2. You will compare and contrast similarities and differences in the processes of diffusion and osmosis. He then describes the diffusion demonstration and how molecules move over time. Steps 1-4. Students will color and cut various molecules to demonstrate osmosis and diffusion in the cell. NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Part I - Introduction to Diffusion and Osmosis Questions 1. (diffusion or. After watching these, you will answer questions comparing and contrasting osmosis and diffusion. active transport D. Osmosis is an example of facilitated diffusion (when entering a cell) if you consider that water uses an aquaporin to move in or out of the cell from high to low concentrations. Biology student mastery regarding the mechanisms of diffusion and osmosis is difficult to achieve. AP BIOLOGY DIFFUSION & OSMOSIS LAB ANSWERS? There is no way to answer this question, because. students investigate the relationship between osmosis and varying concentrations of corn syrup. Both osmosis and dialysis are used by the kidneys to cleanse the blood. plant cell 8. docx Force test. 01 M glucose, and 0. Golub & Ms. Diffusion is applicable to all types of substances: solids, liquids or gases. A diffusion is a procedure in material science. of dissolved substances is called. Which of the following will occur? some helium will move from chamber A to. A refill kit is available and contains only consumable component items it does not contain additional student or teacher guides. outside the cell c. Diffusion and Osmosis. QuizMoz offers one of the Internet's largest collection of Tests for you to exercise your grey cells. This is when water passes through partially permeated membranes from a dilute to a more concentrated solution. AQA, OCR, Edexcel A Level Biology to pass directly through the membrane like in osmosis and diffusion, Cell Membranes AS Biology Questions, AQA, OCR, Edexcel. In our Q&A book from 13 years ago, Jonathan Burdette and I considered diffusion imaging an "Advanced Topic". Diffusion is the movement of molecules from an area of _____ concentration to an _____ concentration. The movement is regulated because cellular membranes, including the plasma and organelle membranes, are selectively permeable. Facilitated diffusion is passive (requires no energy, uses a protein, moves from high to low) Active transport uses a protein that requires energy (moves from low to high). The cell wall will STAY THE SAME. Like cell membranes, dialysis tubing is made from a material that is selectively permeable to water and some solutes. Osmosis is the diffusion of water across a selectively permeable membrane. What is kinetic energy, and how does it differ from potential energy? What environmental factors affect kinetic energy and diffusion?. They help us understand the way two substances interact with each other, and are relevant on a number of levels. Remarkable Osmosis Test Questions On Diffusion Osmosis and Active Transport Practice Questions We collect this best photo from internet and choose one of the best for you, you can see Remarkable Osmosis Test Questions On Diffusion Osmosis And Active Transport Practice Questions and more pictures selection that posted here was carefully picked and uploaded by admin after selecting the ones that. A refill kit is available and contains only consumable component items it does not contain additional student or teacher guides. Practice questions and a list of terms students need to know for the test. Lab #3 - Membrane Transport Lecture Notes. Add a few drops of 0. Pre/Post Test – Osmosis, Diffusion. mitochondrion b. Get acquainted with osmosis, diffusion, permeability, plasmolysis and imbibitions with the help of study material for medical exams offered by askIITians. Pre/Post Test - Osmosis, Diffusion. This lab allows you to learn about two forms of passive transport: diffusion and osmosis. A concentrated solution has few water molecules and low water potential. If this is the fi rst time your students have been exposed to diffusion and osmosis, a quick review of hypotonic, hypertonic, and isotonic relationships may be needed. Osmosis is when a substance crosses a semipermeable membrane in order to balance the. pdf FREE PDF DOWNLOAD. Investigation 4 DIFFUSION AND OSMOSIS 3 Step 1 Place 1 mL of phenolphthalein in two test tubes. ppt osmosis diffusion quiz 2011. Test review with questions from Osmosis And Diffusion: Review Of The Basics For 7th Grade (33029). Understand the basic mechanisms by which biological molecules and water are transported within a living organism. (3) (b) What is meant by the term diffusion?. Passive transport is the gradual movement of molecules from one concentration to another until they are equalized, or at least that's the shortest definition. As a result, students will be able to pose their own scientific questions about the selective permeability properties of cell membranes and provide explanation for how cell size and shape affect rates of diffusion. In the Diffusion Osmosis Inquiry Lab Kit for AP® Biology, participate in two baseline activities that branch out with opportunities for inquiry during which a hypothesis is formed, tested and justified. Home; for the osmosis and diffusion by doing exams or lab testing or even expirements. docx matter quiz. It is customary to express this tendency toward solvent transport in pressure units relative to the pure solvent. Osmosis is the overall movement of water by diffusion through a partially-permeable membrane, from a solution of lower concentration to a solution of higher concentration of dissolved solutes. Which molecule will most likely diffuse through a cell membrane? A)ribosome B)centriole C)Golgi complex D)cell membrane 2. Define the following terms: a. docx matter test re-take. Most other substances, such as ions, move through protein channels, while larger molecules, including carbohydrates, move through transport proteins. ppt osmosis diffusion quiz 2011. Diffusion and osmosis are forms of active transport by which materials pass through plasma membranes. In Part 1,. Use Education. diffusion is misleading as far as titles go. Some dissolved substances can diffuse through a cell membrane too. docx Balanced and unbalanced forces Quiz. Describe the process of diffusion. Thus, some membranes may transmit selectively and are termed semi-permeable membranes. Related searches Osmosis and Diffusion Worksheets Osmosis and Diffusion Lab Diffusion and Osmosis Experiment Define Diffusion and Osmosis Diffusion and Osmosis Animation Difference Between Osmosis and Diffusion What Is. Answer questions #1 – 3 below. Part I of the lab was a demonstration of osmosis and diffusion, that dealt with raisins in different liquid environments, each with a different concentration of. Diffusion, Osmosis, Active Transport There are two ways in which substances can enter or leave a cell: 1) Passive a) Simple Diffusion b) Facilitated Diffusion c) Osmosis (water only) 2) Active a) Molecules b) Particles Diffusion Diffusion is the net passive movement of particles (atoms, ions or. Osmosis is an example of the diffusion process. The diffusion coloring activity is a key reinforcement for middle school science classes. Free class materials on diffusion, osmosis & active transport: Lecture PowerPoint, class notes, test questions, study guide & review questions. Test your knowledge of simple and facilitated diffusion and osmosis by using this interactive quiz. Essay Diffusion Of Diffusion And Osmosis. Osmosis in an onion cell will be important to know for the June Regents. Practice osmosis/diffusion questions. b) active transport. Science Experiment : Diffusion and Osmosis My course is designed to prepare students for the New York State Living Environment Regents exam. You will visit three websites with interactive osmosis and diffusion activities where you will practice applying your knowledge. Use words such as: molecules, low, concentration, high, and move. Osmotic pressure is the pressure that causes the diffusion of water through semi-permeable membranes. How is osmosis related to diffusion? 2. Osmosis is the diffusion of water molecules. Osmosis is a special case of. You have to be sure to take note of all the solutes included in the IV for your mentor to review. In your own words, explain osmosis. Diffusion and osmosis are related concepts—both involve the movement of materials from a highly concentrated area to areas of low concentration. 6 of 8 pgs DIFFUSION lab1. In diffusion, matter is dispersed in a way that makes it achieve equal concentration throughout the environment, moving from a higher concentration to a lower concentration. In osmosis, water moves from regions of low solute concentration to regions of high solute concentration. QUIZ: DIFFUSION. org Summer 2014 Slide 2 / 35 Investigation #4: Diffusion & Osmosis · Pre-Lab · Guided Investigation - Procedure 1 · Independent Inquiry - Procedure 1 C l i c k o n t h e t o p i c t o g o t o t h a t s e c t i o n · Pacing/Teacher's Notes · Guided Investigation - Procedure 2. Diffusion, Osmosis & Active Transport Lecture Materials from the Virtual Cell Biology Classroom. This Osmosis and Diffusion Worksheet is suitable for 9th - 12th Grade. Diffusion examines how kinetic or thermal energy affects this process, whilst osmosis. One of my questions were that what would happen to the glucose and if we left it over night? How would the glucose get out or the iodine get into the bag? I was trying to find out if there what the cause would be for the glucose getting out of the bag into the mixture with the iodine. Diffusion and Osmosis Lab. Here the molecules move out of the liquid and into the air by diffusion: OSMOSIS. AQA, OCR, Edexcel A Level Biology to pass directly through the membrane like in osmosis and diffusion, Cell Membranes AS Biology Questions, AQA, OCR, Edexcel. • The marks for questions are shown in brackets. Test review with questions from Osmosis And Diffusion: Review Of The Basics For 7th Grade (33029). What are the two things needed for osmosis to take place? 3. This part of the lab includes fi nding the percent change in mass. 01 Diffusion in liquid 2. Osmosis is a type of diffusion that, in biology, is usually related to cells. 01 M glucose, and 0. Passive transport is the gradual movement of molecules from one concentration to another until they are equalized, or at least that's the shortest definition. - Diffusion and Osmosis Lab Report on Diffusion and Osmosis Our objective is to figure diffusion and osmosis. To learn more about simple and facilitated diffusion and osmosis, review the. on StudyBlue. Study 46 Osmosis/ Active and Passive Transport Quiz Questions flashcards from caroline s. These are pictures of molecules frozen at two different times. A few particles are disintegrated in a glass of water. Learn more about Diffusion and Osmosis difference at Vedantu. Osmosis - Knowledge Diffusion November 2017 – Present 2 years 1 month. Definition of Osmosis: (i) Diffusion of water from its pure state or dilute solution into a solution or stronger solution when the two are separated by a semipermeable membrane is termed as osmosis. what can you say. Demo and lab activities to help students experience diffusion and osmosis first-hand. In a phase with uniform temperature, absent external net forces acting on the particles, the diffusion process will eventually result in complete mixing or a state of equilibrium. The process of diffusion occurs in everyday life and June is quite familiar these experiences. They help us understand the way two substances interact with each other, and are relevant on a number of levels. Rediscover the magic of learning medicine with Osmosis. (a) The table lists some structures that provide a large surface area for the diffusion of substances. 02 M sucrose, 0. To determine if osmosis and diffusion both occur through a selectively permeable membrane. Diffusion & Osmosis Sample Test Questions 1. Diffusion, Osmosis & Active Transport Lecture Materials from the Virtual Cell Biology Classroom. This assessment. There is a higher concentration of solvent on the side of the membrane with lower solute concentrations, so more solvent molecules move away from that side than move to that side. Use a colorimetric test to demonstrate the movement of a solute across a semi-permeable membrane. Both osmosis and dialysis are used by the kidneys to cleanse the blood. This is a quiz called Diffusion & Osmosis Terms and was created by member nroster many tries as there are questions. I have tried to include one question of each type. b) active transport. eventually becomes balanced on both sides of a membrane. Osmosis in an onion cell will be important to know for the June Regents. Place the appropriate letter next to each statement. That is the overflow because the drain line connected between the sink-top tap and the p-trap is not draining fast enough. active transport D. It does not require any semipermeable membrane. Nursing test banks are legit and very helpful. Leaving Cert and Junior Cert exam paper questions and marking schemes listed by topic. Diffusion and Osmosis Lab Activity A: Diffusion Objectives Use dialysis tubing to model diffusion across the cell membrane. • You are expected to use a calculator where appropriate. QuizMoz offers one of the Internet's largest collection of Tests for you to exercise your grey cells. To connect the concepts of diffusion and osmosis to the cell structure and function Pre-lab questions or research - Remember to write complete sentences. To gain a better understanding of diffusion and osmosis, we examine multiple experiments to show diffusion and osmosis in animal cell, plant cell and synthetic cell. docx Friction and Gravity Quiz. Osmosis And The Egg Purpose The aim of this experiment was to use an egg to test the effects of osmosis and to determine if the size of the egg changed when it was exposed to different solutes. In this experiment, you will create models of living cells using dialysis tubing. To monitor comprehension of these processes among students at a large public university, we developed and validated an 18-item Osmosis and Diffusion Conceptual Assessment (ODCA). Does the process of osmosis work with other pieces of fruits or vegetables? What about the temperature of water? Does that make it get flimsy faster or slower? Lots of things for you to test… remember science is about making observations, testing ideas, and then asking more questions. Passive Transport - Osmosis. Chambers are connected by a tube the molecules are free to cross. Sample 4 sample test questions on diffusion across a selective diffusion. I have tried to include one question of each type. What are three types of passive transport that occur in the body? 4. Reflection Questions: Answer the following questions. What are the two things needed for osmosis to take place? 3. A diffusion is a procedure in material science. Diffusion and Osmosis. Dialysis sacs are taken and blotted gently then weighted and collected data ("Cell Transport Mechanisms And Permeability"). Test your knowledge about Osmosis and Diffusion multiple choice with this online quiz. Each cell contains several structures, some of which are common to both eukaryotic and prokaryotic cells and some that are unique to specific cell types. Which of the following is a function of the cell. pdf FREE PDF. students investigate the relationship between osmosis and varying concentrations of corn syrup. Cell Membrane in the Cells Topic Category. I have tried to include one question of each type. We find water in the cytoplasm and in cell sap. To learn more about simple and facilitated diffusion and osmosis, review the. Go ahead and find out how much do you know about your self and the world around you. Water moves by osmosis from the left into the region on the right, where it is less concentrated, causing the solution on the right to rise. Know the effects of osmosis on plant and animal cells. Our group choose to use the apple shaped gel and a small piece from a potato corer. Diffusion and Osmosis. In your own words, explain osmosis. Osmosis and Diffusion Students will explore the concepts of osmosis and diffusion through two days of lessons. For instance, a 10% sugar solution could be made by adding 50 ml of corn syrup to 450 ml of water. Chamber A contains 40% helium and Chamber B contains 20% helium. Chapter 20 ap biology chapter practice questions. Notes (32-36) Correct Article. chloroplasts Multiple Choice. your observations in the data table answer the following questions in your lab journal 1. Please "like" and share with your friends if you find that this helped your improve your understanding. In a cell, movement of molecules from an area of low concentration to an area of high concentration. Test: Cell Structure and Function Interpreting Diagrams 1. hypertonic b. Osmotic pressure is the pressure that causes the diffusion of water through semi-permeable membranes. Diffusion and osmosis are forms of passive transport by which materials pass through plasma membranes. Know that this energy causes the protein to have a conformational change. Put some plastic wrap on top of the test tube. Diffusion and osmosis stops when a dynamic equilibrium Is reached, that Is, the concentration on both sides are equal to each other. Or a drop of food coloring in a container of water will also. OSMOSIS DIFFUSION LAB There are a number of variations of this lab You can order kits from Wards, but we found the lab handout that accompanies the kit is confusing for students. Introduction: Diffusion is one of the very important processes by which substances such as nutrients, water, oxygen, and cellular wasted are transported between living cells and their environment. Please complete the following questions based upon the above practical and submit via the relevant Dropbox folder on MyLO. Passive transport is the gradual movement of molecules from one concentration to another until they are equalized, or at least that's the shortest definition. Which of the following structures serves as the cell's boundary from its environment? a. 2 M sucrose, but forgot to label them. You will be tested upon your knowledge of such a topic so it could help you analyze yourself for the amount of hard work you need to put on your studies. on StudyBlue. Ninth Grade (Grade 9) Biology questions for your custom printable tests and worksheets. Test review with questions from Osmosis And Diffusion: Review Of Cell Membrane Osmosis And Diffusion (13067) fun and interactive games to help prepare for exams. c) Osmosis. Diffusion of matter can take place in air or liquid and can occur across cell membranes. pdf diffusion exam questions gcse edexcel. Goals: Understand the functional role of the cell membrane in cell survival. 2 (a)The sugar solution in the bag is more concentrated than the water outside the bag. Asked by lovemaan5500 26th December 2017 9:50 AM. A teaching vignette with activities, discussion questions, and investigation ideas for teaching the cell (more) transport systems of osmosis and diffusion. Test: Cell Structure and Function Interpreting Diagrams 1. Step 1 only. In addition, it lends. diffusion_osmosis_and_active_transport_summary. Lab 4: Diffusion and Osmosis (Revised Fall 2009) Lab 4 - Biol 211 - Page 1 of 23 Lab 4. Everything else goes through diffusion which is movement of and particles from high concentration to low concentration, also down the gradient. I hope you enjoyed this simple experiment. Diffusion and Osmosis Laboratory Investigations Part 1- Testing for Diffusion: A Guided Activity Introduction: In this exercise you will measure diffusion of small molecules through dialysis tubing, an example of a semi- permeable membrane. This assessment. Osmotic pressure is proportional to [solute]. In this experiment, you will create models of living cells using dialysis tubing. Diagram A shows that most particles start out on one side of the box. A set of questions with multiple choice answers to test your knowledge on Osmosis at GCSE level. org are unblocked. keeps the cell wall. Practice questions and a list of terms students need to know for the test. Diffusion is the movement of a substance through a semipermeable membrane, such as a cell membrane. Test-Osmosis, diffusion and membrane transport Multiple Choice Identify the choice that best completes the statement or answers the question. DUE: Cell Respiration Article & Question. Osmosis and Diffusion AMC Essay Sample. In this science worksheet, learners investigate the cell and the process of osmosis and diffusion across the cell membrane and then perform an experiment. In today’s experiments we will explore membrane transport processes, focusing on passive transport, specifically diffusion of molecules through various types of matter and across semipermeable membranes. no energy (ATP) is required. You will compare and contrast similarities and differences in the processes of diffusion and osmosis. View full resource The net diffusion of. Diffusion can occur in gases, in liquids, or through solids. Cell Transport Review animation and questions. Diffusion Through a Membrane osmosis – diffusion of water across a semi-permeable cell membrane from region of high concentration to a region of low concentration – no energy needed (passive transport). Osmosis This is a special kind of diffusion involving water molecules only. We then started on our Diffusion Lab and are working our way through the lab report. Define the following terms: hypotonic, isotonic and hypertonic. Reverse osmosis removes suspended and types of dissolved species from water including bacteria. This investigation includes observation and analysis of osmosis (diffusion of water across a selectively permeable membrane). This characteristic leads to a phenomenon known as diffusion in which a substance will always spread from an area where it is highly concentrated to one of lesser concentration. This means that osmosis is a very selective term because it applies only the the movement of water molecules through semi-permeable barriers such as the cell membrane. This part of the lab includes fi nding the percent change in mass. always remains greater inside a membrane. what can you say. If the molecules are too large, no molecular transfer, or diffusion occur. We also looked at the second part of the State Lab. One of my questions were that what would happen to the glucose and if we left it over night? How would the glucose get out or the iodine get into the bag? I was trying to find out if there what the cause would be for the glucose getting out of the bag into the mixture with the iodine. Question Why is it important for an IV solution to have salts in it? BSC2012 Diffusion and Osmosis Lab Report. Utilize this quiz/worksheet combo to identify. Using a dull knife or thin strip of hard plastic, cut three. Diffusion is a process vital for life and it forms part of AQA's Unit 3 in GCSE biology. Pre/Post Test – Osmosis, Diffusion. This water contains many dissolved substances and these substances plus the water enter and leave the cells through the cell membrane. Showing top 8 worksheets in the category - Diffusion And Osmosis Answer Key. Osmosis and Diffusion Lab test, a dark purple color is a positive result. Ask your doubt of diffusion and get answer from subject experts and students on TopperLearning. Are you wondering of where you can get reliable help with potato osmosis lab report? Post Lab Report: Based on. Every essay writer is highly qualified and fully capable of completing the paper on time. Note: The number of main points, subpoints and sub-subpoints you use will. When a cell uses energy to move materials across a cell membrane, the process is known as (a) osmosis (b) active transport (c) diffusion (d) passive transport (e) facilitated diffusion 16. Water and oxygen are examples of molecules that are able to go through the membrane by diffusion. It is customary to express this tendency toward solvent transport in pressure units relative to the pure solvent. That is the overflow because the drain line connected between the sink-top tap and the p-trap is not draining fast enough. Lab: pH, Cell Structure, Diffusion & Osmosis Page 3 of 9 Experiments: pH Testing One or two groups of students will measure the pH of some common substances. Biology Test Diffusion and Osmosis Diffusion and Osmosis Test study guide by dogmother160 includes 54 questions covering vocabulary, terms and more. Diffusion is applicable to all types of substances: solids, liquids or gases. This would take about a half hour, one hour, and another half hour--spread out over 3 days. Reverse osmosis removes suspended and types of dissolved species from water including bacteria. The activity is a great intro lab into the concept of osmosis and diffusion. How does the size of a particle of a substance affect the ability of a substance to cross a semi-permeable membrane? Data & Observations Mass of dialysis bag BEFORE Electronic balance #. Biology revision resources made by teachers. osmosis and diffusion lab report To give you some idea of what it makes a CustomWritings. pdf FREE PDF DOWNLOAD. Leaving Cert and Junior Cert exam paper questions and marking schemes listed by topic. I have tried to include one question of each type. Chamber A contains 40% helium and Chamber B contains 20% helium. Step 1 only. Which way is water moving? a. Reverse osmosis is a process that humans use to filter water Osmosis and diffusion review sheet answers. Here is a list of all of the Key Terms from this chapter. A professional writer will produce osmosis and diffusion lab report a research paper to impress your professor. Where is the greatest concentration of water? a. This assessment. This process is also passive since no external energy is needed. Diffusion can occur in gases, in liquids, or through solids. Matter Exam. He then describes the diffusion demonstration and how molecules move over time. breaks down lipids, carbohydrates, and proteins from foods b. Get laboratory experiment diffusion and Osmosis help and reviews for your AP biology. Related Topics: More Lessons for Biology Math Worksheets A collection of videos and experiments that are suitable for Biology. B Diffusion (True). 2 (a)The sugar solution in the bag is more concentrated than the water outside the bag. allow sunlight to pass through. Osmotic pressure is the pressure that causes the diffusion of water through semi-permeable membranes. cell wall 2. Students will color and cut various molecules to demonstrate osmosis and diffusion in the cell. Article Reverse Osmosis Desalination Technology in the Oil & Gas Industry. e) facilitated diffusion. See how much you understood about osmosis in the class by taking the test below before the test. What is the difference between osmosis and diffusion? Diffusion - passive/directional movement of molecules Osmosis - movement (diffusion) of water across as differentially permeable membrane. phylogeny The epidermis of a leaf is considered an example of a tissue because the cells A. ” Diffusion – movement of particles from high concentration to low concentration. You'll need to be able to answer these questions for an upcoming assignment check. A selectively permeable membrane allows only some thing to go through. Related Discussions:- Describe the terms diffusion osmosis and filtration, Assignment Help, Ask Question on Describe the terms diffusion osmosis and filtration, Get Answer, Expert's Help, Describe the terms diffusion osmosis and filtration Discussions Write discussion on Describe the terms diffusion osmosis and filtration Your posts are moderated. A dilute solution means it has lots of water molecules, and a high water potential. At the beginning of the experiment the volumes in both arms are the same, and the level of the liquid is therefore at the same height. Diffusion, Osmosis & Active Transport Summary - GCSE Biology Revision - SCIENCE WITH HAZEL - lesson plan ideas from Spiral. Using a dull knife or thin strip of hard plastic, cut three. writing a lab report It’s even feasible to reversing osmosis! Osmosis is the diffusion of plain water. These questions were initially validated by asking students to orally clarify their written answers during short interviews. Selectively permeable means that some molecules can move through a membrane while others cannot. in their understanding of diffusion and osmosis concepts. In this lesson, we'll talk about methods of passive transport along a concentration gradient, including simple and facilitated diffusion and osmosis. Osmosis And Diffusion Lab : Experiment 2755 Words | 12 Pages. These cells display specialised features that make them suited to carry out their specific function. This process is also passive since no external energy is needed.