A researcher claims that budding yeast are able to survive in different environments because they produce enzymes that allow them to use different molecules as sources of matter and energy. The cecum can become a vestigial structure in carnivores, since it is shorter in species B and C than in species A and D. B. A. momentum HO of the system about the base satellite? Water will rush into the lysosome causing it to burst. Unit 2 Practice Test (2020) AP Biology Multiple Choice Questions (1 point each) Choose the best answer for each question and write the letter on the line provided. 30 seconds. , Chloroplasts are the site where photosynthesis occurs. 2015 ap micro frq - bnaj. C) It will act as a control for test tube 6 by showing the effect of the presence or absence of the enzyme. Quiz AP Biology Unit 2 DRAFT 10th - 12th grade Played 580 times 71%average accuracy Biology 2 years ago by wmrichards 0 Save Edit Edit AP Biology Unit 2DRAFT 2 years ago by The engulfed prokaryote then formed an Endosymbiotic relationship with the eukaryotic host. Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. In the first part, you found that 30 moles of ATP has 219 kCal available, and the problem states that oxidation releases 686 kCal of energy. B) The amount of product will decrease until the reaction reaches its equilibrium point or the enzyme has been used up by the reaction. 45 Questions Show answers Question 1 30 seconds Q. The endosymbiotic theory is summarized below. D. Chemical energy released by glycolysis Which of the following indicates where testosterone enters the cell and why is able to cross at that point? Sensory pathways begin with the reception of sensory information, in which the stimulus is detected by sensory cells. Which of the graphs below best represents the predicted change in mass over time of the dialysis bag in the beaker to which albumin was added? Based on the following information, which of the following conclusions is most plausible? C) The amount of product will increase until the reaction reaches its equilibrium point or until the substrate is used up by the reaction. Embryonic development, (A), does not reveal either of these characteristics, nor does fertilization, (C). To support the claim, the researcher makes the following observation: bacteria that contain plasmids (small DNA molecules) are resistant to a wider range of antibiotics than are bacteria that contain no plasmids. Cell membranes, nucleic acids, mitochondria, A.rough endoplasmic reticulum, nucleus, lysosome, C. Golgi complex, rough endoplasmic reticulum, ribosomes. Which of the following actions will provide a negative control for the investigation based on Figure 3-1? The ratio is 0.89, and the cells are LESS efficient at transferring oxygen. The AP English Language and Composition Exam includes multiple-choice and free-response questions that test essential skills covered in the course curriculum: Ap human geography. A) The amount of product will increase until the reaction rate goes to zero. . A. light reactions produce sugar, while the Calvin cycle produces O2. By blocking AMPK with an inhibitor, researchers found that AMPK activation is required for metformin to produce an inhibitory effect on glucose production by liver cells. https://ybcmd.rentinghouses.it/unit-3-progress-check-mcq-part-a-ap-physics-quizlet.html Ap European History Unit 3 Progress Check Mcq AP BIO Unit 3 Released FRQs 2017 #7 2017 #7 Answer Key 2015 #2 2015 #2 Answer Key 2015 #2 Answer Key Cont 2014. . In humans, blood pH is around 7.4, and a decrease in blood pH to 6.4 would be fatal. I_am_failing. AP Physics 1: Unit 5 Progress Check: MCQ Part, David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine. AP Biology Unit 6 MCQ Flashcards | Quizlet. Partner Solutions Of the statements listed, the only one that logically follows is (A): in carnivores, the cecum becomes unnecessary, and starts to shorten. Here is the Remind # for Nease AP/IB Bio - text @98d7a8 to 81010. The plasma membrane is made of a phospholipid bilayer, composed of two layers of phospholipid molecules, with the hydrophobic tails facing inward and the hydrophilic heads facing outward. Every AP Biology Practice Test Available: Free and Official. Unit 2: Cells & Cellular Transport Test Practice Test Unit 3: METABOLISM AND PLANT TEST Lecture & Video REVIEWs Click for Chapter 8 REVIEW Practice Questions unit_3_-_metabolism___plants_practice_test.pdf Download File FRQ PRACTICE IS BELOW. The endosymbiotic theory is summarized below. C) Some plasmids cannot exist in a bacterial cell with certain other plasmids. AP Bio Unit 2 Progress check questions and answers Terms in this set (30) A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). It increases the surface area available for ATP production, which results in faster cell growth. B. What is one example of an advantage of biodiversity in an ecosystem? *The following questions were not written by CollegeBoard and although they cover information outlined in the AP Biology Course and Exam Description the formatting on the exam may be different. B) ATP synthase activity depends on a proton gradient across the thylakoid membrane. Two cellular organelles are represented by the letters A and B. With Super, get unlimited access to this resource and over 100,000 other Super resources. 56% average accuracy. own thrust capabilities, to perform research on tether propulsion. Others act as channels or pumps, allowing specific molecules to pass through the membrane. b. Biology is brought to you with support from the Amgen Foundation. Which of the following best describes how the ratio of the density of stomata (stomata per mm^2) per CO2 concentration (ppm CO2) changes as the CO2 concentration increases? What should a team of students do next to obtain data that are more inclusive? Start your own study with me session on our platform! carbon monoxide, carbon dioxide, and solid carbon. D. The lysosome will repair the membrane and not die. . Fnd\iint \mathbf{F} \cdot \mathbf{n} d \sigmaFnd where F=(y2x2)i+(2xyy)j+3zk\mathbf{F}=\left(y^{2}-x^{2}\right) \mathbf{i}+(2 x y-y) \mathbf{j}+3 z \mathbf{k}F=(y2x2)i+(2xyy)j+3zk and \sigma is the entire surface of the tin can bounded by the cylinder x2+y2=16,z=3,z=3x^{2}+y^{2}=16, z=3, z=-3x2+y2=16,z=3,z=3. The Course challenge can help you understand what you need to review. A deep dive into how life on Earth originated, adapted, and flourished. Page 4 of 5 Please respond on separate paper, following directions from your teacher. A set of five additional test tubes were prepared and used as controls. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at ssd@info.collegeboard.org. PDF Unit 2 progress check mcq ap human geography quizlet. C) Yeast cells produce invertase, which is an enzyme that catalyzes the conversion of the disaccharide sucrose into glucose and fructose. A.Ribosomes, cell membranes, nucleic acids, B. 2023 Fiveable Inc. All rights reserved. What form of energy is represented by E II? One thing that helps cells to be able to take care of different processes inside the cell is the membrane and organelles that have membranes as well. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. A) Organisms contain enzymes that lower the activation energies of specific chemical reactions of COCOCO and CO2CO_2CO2? Water enters the cell causing it to swell, C. Water leaves the cell causing the solution to become more hypertonic, A. 1, because testosterone is nonpolar and can diffuse through the membrane. Lesson 5 - Hydrometeorological and Coastal Pr, Did the tsarist policy toward minority groups, Functions of the hypothalamus and limbic syst, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine, HESI Admission assessment A&P Practice test, ELA first 9 weeks unit 1 ( point of view part). Unit 2 of AP Biology covers cell structure and function. Describe the Lewis structure of ketene (C2H2O)\left(\mathrm{C}_2 \mathrm{H}_2 \mathrm{O}\right)(C2H2O) and describe the hybridization states of the C\mathrm{C}C atoms. the amount of energy contained in one gram of fat. C) Function will be gained by adding the urea and disrupted by removing the urea. A The production and secretion of steroids B D) The additional pigments absorb light at wavelengths that green algae cannot absorb; this may allow cyanobacteria to capture more light energy for photosynthesis than green algae can in certain areas. It is known that f is increasing on the . https://fiveable.me/Let's connect:Instagram https://www.instagram.com/thinkfiveableTwitter https://twitter.com/thinkfiveableTikTok -https://www.tiktok.com/@thinkfiveablePinterest -https://www.pinterest.com/thinkfiveable/Discord https://discord.gg/thinkfiveableStart a study session with a timer, Spotify playlists and a task list:http://fiveable.me/Subscribe for more videos:https://www.youtube.com/channel/UCxnn#apbio #apbiology #biology #ap #science #collegeboard #apush #apexam #biologyteacher #bio #StudyWithMe #Studying #Study #StudyWithFiveable #AP #CollegeBoard #StudyInspo #Education #EdTech #Students Which of the following statements best helps justify the researcher's claim? Cladogram Practice LOOK OVER AT LEAST ONE! B. comparing the diploid and haploid forms of the organism. Study Guide for Anatomy & Physiology, 9th Edition provides a . the system is brought to equilibrium at 900C900\circ C900C. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions. It originated from the incorporation of a photosynthetic prokaryote into a eukaryote cell by the TWO Endosymbiotic events. *The following questions were not written by CollegeBoard and although they cover information outlined in the AP Biology Course and Exam Description the formatting on the exam may be different. If the pressure potential of the leaves increased to 1 Mpa, B. 23 terms. It was mostly incorporated into proteins that regulate and manage metabolic reactions. AP Biology Multiple Choice Practice Questions. Actual cell membranes have a variety of proteins embedded in the membrane that are absent in the artificial membrane. B. Hydrolytic enzymes leak into the cytoplasm causing digestion of vital proteins. If you are using assistive technology and need help accessing these PDFs in another format, contact Services for Students with Disabilities at 212-713-8333 or by email at [emailprotected]. C) Some enzymes embedded in the thylakoid membrane catalyze the hydrolysis of ATP. Unit 6 MCQ Part B, #1. Create engaging Jeopardy-style quiz games in minutes or. B) An ecosystem is formed by the interaction of a community of organisms with their surrounding environment. AP Bio: AP Classroom Unit 2 MCQ Flashcards. AP Bio Unit 2: Cell Structure and Function Cheat Sheet. A) Function will be disrupted by adding the urea and regained by removing the urea. Based on their observations, what should the researchers do to further clarify how the availability of the protein outside the cells affects the rate of endocytosis of the protein? B) European flycatcher hatchlings begin to need energy to leave the nest only after the caterpillars have turned into pupae. You need to answer all of the questions because a blank answer is a wrong answer. Terms and Conditions A researcher claims that genetic variation provides organisms with the ability to survive and reproduce in different environments. On separate diagrams, sketch the formation of sigma and pi bonds. C) Evidence that some of the earliest organisms carried out photosynthesis without producing oxygen About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . Include a substance known to block ATP use by the plasma membrane. A) The active site of AChE is specific for acetylcholine, and only one substrate molecule can occupy the active site at a time. unit 6 progress check mcq ap lang answers. A) The additional pigments allow the cyanobacteria to store light energy so that it can be used at night to continue photosynthesis. Introduction to biological macromolecules, Properties, structure, and function of biological macromolecules, Mechanisms of transport: tonicity and osmoregulation, Cell compartmentalization and its origins, Regulation of gene expression and cell specialization, See how our course content aligns with AP Biology standards. AP is a registered trademark of the College Board, which has not reviewed this resource. Create your own unique website with customizable templates. Which of the following claims about the effects of the valinomycin treatment is best supported by the data presented in the table? save. Khan Academy is a 501(c)(3) nonprofit organization. Because the question specifies that oxygen is required, the process depicted must show aerobic respiration rather than glycolysis. B. Facts about the test: The AP Biology exam has 60 multiple choice questions and you will be given 1 hour 30 minutes to complete the section. The What are they called? Preview this quiz on Quizizz. Question 8. Acetylcholinesterase (AChE) is a protein that catalyzes the conversion of acetylcholine to acetate and choline. (Click on the image to see a larger version) Check out the AP Bio Unit 2 Replays or watch the 2021 Unit 2 Cram. Click the card to flip Flashcards Learn Test Match Created by maras826 Terms in this set (30) Chemical energy being stored in the bonds of glucose, D. Chemical energy released by glycolysis, The reaction occurring in organelle A is photosynthesis, as indicated by the splitting of water and fixation of CO. . If the transformation depicted in organelle B requires oxygen, what form of energy is represented by E IV? ap bio unit 2 progress check MCQ 5.0 (1 review) Term 1 / 30 A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). Which of the following best describes the contents expected to be contained in one of the five control test tubes based on Figure 3-2? Not on this quizlet: 16 Water will rush into the lysosome causing it to burst. AP BIO - Unit 6 Topic Questions. A) Some antibiotics inhibit the synthesis of bacterial cell walls. Depending on the type of molecule being transported, the cell may need the help of a transport protein to facilitate its movement across the membrane. Based on Figure 3-4, which of the following statements provides reasoning that supports the claim that brown fatty tissue keeps an animal warm? AP Bio Unit 2: Cell Structure and Function Cheat Sheet by. A) Evidence that some of the earliest eukaryotes used oxygen to produce ATP by cellular respiration At low concentrations of acetylcholine, a small increase in the substrate concentration results in a large increase in the reaction rate. (B) is the opposite of what we expect; it would be logical if it played a prominent role in digesting carbohydrates. C) The amount of product will increase until the reaction reaches its equilibrium point or until the substrate is used up by the reaction. ikea kitchen storage hacks. A.water enters the cell causing it to sink, B. The AP Biology Exam is 3 hours long and is divided into two sections: Section I (multiple-choice questions) and Section II (free-response questions). AP Bio: AP Classroom Unit 2 MCQ 4.4 (23 reviews) Term 1 / 30 A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). At 900C900^\circ C900C, KcK_cKc is 0.238. Course and Exam Description Download AP Biology Course and Exam Description Researchers investigated the effect of urea on the three-dimensional structure of a certain enzyme. The form of energy released in aerobic respiration is chemical energy in the form of ATP (E IV). Now, heat is transferred to refrigerant-134a until the temperature is 15^\circ{}C. A researcher claims that the incorporation of carbon dioxide into organic molecules during photosynthesis does not violate the second law of thermodynamics. Expand All The endosymbiotic theory is where organelles that were once free-living prokaryotic cells became engulfed and serve a purpose now inside the cell. If you're seeing this message, it means we're having trouble loading external resources on our website. Kyo Standard Resources Home AP Score Calculator AP Score Calculator AP Biology AP Calculus AB AP Calculus BC AP CHEMISTRY AP COMP GOV AP ENglish literature AP Macro-Economics AP Micro-Economics AP PHYSICS 1 AP PSYCHOLOGY AP . C. Chemical energy in the form of ATP Unit 4 questions & answers for quizzes and tests - Quizizz Find and create gamified quizzes, lessons, presentations, and flashcards for students, employees, and everyone else. By PASSIVE transport from an area of LOW osmolarity to an area of HIGH osmolarity. C. determining when in the life cycle fertilization occurs. Our mission is to provide a free, world-class education to anyone, anywhere. Thushara Samarawickrama - Physics Teacher - LinkedIn. You will have 60 minutes to answer 45 questions. A piston-cylinder device contains 0.85 kg of refrigerant-134a at -10^\circ{}C. The Expert s Guide to the AP European History Exam. Q. Which of the following models shows how cholesterol molecules most likely interact with the phospholipid by layer of a cells plasma membrane? Ap Bio Unit 2 Practice TestStudy with Quizlet and memorize flashcards containing terms like FRQ #1: Describe the processes of fat, carbohydrate, and protein digestion and product absorption as they occur in the human mouth, stomach and small intestine. Unit 4 Progress Check: MCQ root tips growing in compact sand. The production and secretion of proteins View Test_ Anatomy and Physiology Exam #1 (Ch. D) Yeast cells produce catalase, which is an enzyme that catalyzes the conversion of hydrogen peroxide into water and oxygen gas. Water is a small, polar molecule that can move across the membrane in small quantities, but it needs the help of aquaporins and other proteins to cross the membrane in larger amounts. Many proteins are embedded in the membrane, and these proteins play a number of important roles in the cell. 9th - 12th grade . The first reaction in this organelle represents the light reactions, in which the suns energy is converted to chemical energy in the form of ATP (E II). Which way would the purple molecules move through the semi-permeable membrane? Which of the following functions is the cell type most likely specialized to perform? Grab some paper and a pencil to record your answers as you go. Unit 2 Population and Migration Patterns and Processes. The reaction occurring in organelle A is photosynthesis, as indicated by the splitting of water and fixation of CO2. Based on the information presented, how does aldosterone most likely enter target cells? One way to determine the type of life cycle an organism has is by. At the instant shown, what is the angular Candidates should submit: A 2-3 page research plan, a cover letter describing interdisciplinary research experience and how it connects to the interests and goals of the Carbon cluster, and a 1-3 page teaching statement that includes specific discussion of accomplishments and plans for promoting inclusive and equitable education, outreach, or. https://library.fiveable.me/ap-bioStudy with friends using the #1 virtual studying platform for students! As evolution has occurred, cells have changed and have been altered. The light-independent reaction is where the Calvin-Benson cycle takes place and carbon is fixed to make simple sugars. D) The total system that includes photosynthetic organisms and the Sun become less ordered over time. A. Click the card to flip Definition 1 / 158 that they create and maintain internal environments different from the external environments Click the card to flip Flashcards Created by grreverol Terms in this set (158) B) The uncoupling protein in this tissue reduces the proton gradient across the membrane and thus produces heat to warm the animal without ATP production. AP Biology Unit 1 11th - 12th grade Played 2080 times 76% average accuracy Biology a year ago by jdmay 4 Save Edit Live modes Start a live quiz Asynchronous learning Assign homework 43 questions Preview Show answers Question 1 900 seconds Q. Organic chemistry is a science based on the study of answer choices functional groups. In Fig. a. Press & Media Life cycles are characterized by the timing of meiosis and the characteristics of the diploid and haploid generations. A zinc ion binds to the ALAD active site, where it forms favorable interactions with the side chains of three amino acids. AMP-activated protein kinase (AMPK) is a major cellular regulator of glucose metabolism. Study with Quizlet and memorize flashcards containing terms like Let f be the function given by f(x)=x2+1x+x+5. C. Chemical energy in the form of ATP AP Biology Unit 2 Test Flashcards | Quizlet AP Biology Unit 2 Test Term 1 / 31 Water passes quickly through cell membranes because a. Researchers have found that substituting a lead ion for a zinc ion in the ALAD active site causes inhibition of ALAD. Which test tubes are controls in the experiment based on Table 3-1? For your second answer, remember that efficiency is (energy output)/ (energy input). The Na+ concentration inside the cell will increase. AP_Biology_Unit_1_Chemisty_of_Life_Exam_2020_2021. The ribosome, since all organisms need to synthesize proteins. The picture is an example of. B) The uncoupling protein in this tissue reduces the proton gradient across the membrane and thus produces heat to warm the animal without ATPATP production. B. Which prediction of the effect of this disruption of cellular compartmentalization is most likely correct? All organelles are essential, and students must understand all of them. AP Environmental Science Unit 1 Progress Check: MCQ Term 1 / 18 Six white-tailed deer Unit 3 progress check mcq ap lang answers About Apes Frq Unit 6. Question 1 300 seconds Q. AP Bio Unit 2: Cell Structure and Function Surface Area outside area of an object the area around the outside of a cell unit: m^2 Application in Living Things increased surface area = increased diffusion microvilli: increases absorption in intestines root hairs: increases water/nutrient absorption in plants Organisms that reproduce sexually exhibit zygotic, gametic, or sporic meiosis. B. light reactions produce NADPH and ATP, while the Calvin cycle produces sugar. D) The uncoupling protein in this tissue reduces the production of ATP and creates an increase in the proton gradient that allows more heat energy to be produced to warm the animal. D) Function will be unaffected by the addition and removal of the urea. (B) is the opposite of what we expect; it would be logical if it played a prominent role in digesting. The cecum evolved to have an important role in the digestion of protein, since it is shorter in species B and C than in species A and D. Quizlet NAME 20 Multiple choice questions 1. Learn AP Biology using videos, articles, and AP-aligned multiple choice question practice. AP Biology Unit 2: Cell Structure & Function Practice Test . AP Bio Unit 3 MCQ 5.0 (2 reviews) Term 1 / 20 Aminolevulinate dehydratase (ALAD) is an enzyme that relies on zinc as a coenzyme. Question 2 Answer The correct choice is C All gametes are unicellular, ruling out (D). Review of Timed AP Exam Practice #1 AP Biology Practice Questions-The Chemical Structures Of Life Full Guide to AP Prep Books: BARRON'S VS. Copyright Kaplan, Inc. All Rights Reserved. Data questions on the AP Biology test are a series of questions about a single data set, which are commonly represented in graphs, charts, or as an experiment summary. Based on Figure 3-1, which of the following statements best predicts the effect that a change from a moderately acidic environment (pH near 6) to a basic environment will have on peroxidase activity? Aminolevulinate dehydratase (ALAD) is an enzyme that relies on zinc as a coenzyme. If the total Based on the figure which of the following statements best describes the relationship between regions 1 and 2 of the protein? The movement of molecules across the plasma membrane is regulated by the hydrophobic and hydrophilic properties of the phospholipids. unit 6 progress check mcq ap lang answers. C) Female European flycatchers require energy to lay eggs, so they lay their eggs when the caterpillar biomass is maximal. Click link for practice quizzes in all content of AP BIO: Which of the following properly links the nutrient to its reservoir? Incubate the cells in the presence of several different concentrations of the protein. In this case, osmoregulation allows cells to maintain their internal solute balance. Cell membranes, nucleic acids, mitochondria, A.rough endoplasmic reticulum, nucleus, lysosome, C. Golgi complex, rough endoplasmic reticulum, ribosomes, D. Golgi complex, mitochondria, chloroplast. The researchers carefully removed the urea from the solution and determined that the enzyme had the original secondary and tertiary structure again. Get started for free! The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. A) Young European flycatchers hatch from eggs when caterpillar biomass is available for the young birds to consume and convert into energy for growth. Some carbon dioxide is added to the hot carbon and STOP! Before you look at the answers make sure you gave this practice quiz a try so you can assess your understanding of the concepts covered in unit 1. The endosymbiotic theory is where organelles that were once free-living prokaryotic cells became engulfed and serve a purpose now inside the cell. The average cell cycle time is greater for the root tips growing in compact sand than for the root tips What is the value of KpK_pKp? QuebedeauxJ21. D. The lysosome will repair the membrane and not die. A researcher proposes a model to explain how enzyme-substrate interactions determine enzyme specificity. D. Species B and C have a common ancestor, since the cecum in species B and C is approximately the same length. . When the concentration of AChE in an aqueous solution is held constant, the rate of the reaction catalyzed by AChE increases with increasing concentrations of substrate. Question 4. Based on Table 3-3, which of the following statements best helps justify the inclusion of test tube 5 in the experiment? AP Bio MCQ Unit 5. Systems Interactions Advanced level Physics Past papers MCQ review" 1995-2020 Sinhala Medium ISBN 978-955-54899-6-6. Chemical energy being stored as glycogen, https://www.kaptest.com/study/wp-content/uploads/2020/04/AP-Biology-Multiple-Choice-Practice-Questions.jpg, http://wpapp.kaptest.com/wp-content/uploads/2020/09/kaplan_logo_purple_726-4.png, AP Biology Multiple Choice Practice Questions. B) The additional pigments block light and prevent it from reaching photosynthetic organisms at greater depths, so no photosynthetic organisms can live below the surface waters containing cyanobacteria. Each question will have 5 possible answers. When beetroot cells are placed in a solution with cellulase, the solution remains clear. A. If water potential outside of the plant cell is higher than the water potential of the plant cells, C. If water potential outside of the plant cell is lower than the water potential of the plant cells, A.changing the permeability of the cell membrane, B. the opening and closing of the chloroplast, C. changing the permeability of the cell wall, Multiple Choice Practice for Cell Structure and Function Concepts. or. The plasma membrane is not a static structure and is constantly undergoing changes in response to various signals and stimuli. D) The additional pigments absorb light at wavelengths that green algae cannot absorb; this may allow cyanobacteria to capture more light energy for photosynthesis than green algae can in certain areas. The movement of molecules across the plasma membrane occurs through a process called membrane transport. Hufflepuff_Hamilton. 2023 Fiveable Inc. All rights reserved. Welcome to Unit 2 AP Biology Multiple Choice Questions! There are several different types of membrane transport: Water potential is the tendency for water to move in one direction or another. Repeat the process with other salt concentrations. The molecules does not contain OH\mathrm{O}-\mathrm{H}OH bonds. D) Carbon fixation in the Calvin-Benson cycle takes place in the stroma of chloroploasts.