A researcher proposes a model to explain how enzyme-substrate interactions determine enzyme specificity. The form of energy released in aerobic respiration is chemical energy in the form of ATP (E IV). Which cellular component will be found in the widest range of organisms in the sample? Review the fundamentals of biochemistry, cell biology, genetics, evolution, and ecology, and develop scientific thinking skills as you explore the study of life. Because the question specifies that oxygen is required, the process depicted must show aerobic respiration rather than glycolysis. *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. Question 3. SComplete study guide/review with practice. There are several different types of membrane transport: Water potential is the tendency for water to move in one direction or another. Some proteins are involved in cell recognition, helping the cell to communicate and interact with other cells. B) ATP synthase activity depends on a proton gradient across the thylakoid membrane. A) The uncoupling protein in this tissue increases the production of ATP and causes more body heat to be produced to warm the animal. AP Euro Unit 2 Quiz ProProfs Quiz. AP Bio MCQ Unit 5. Page 4 of 5 Please respond on separate paper, following directions from your teacher. Which of the following claims about the origin of euglenid chloroplast is best supported by the 3- membrane structure of the envelope? Which of the following functions is the cell type most likely specialized to perform? Others help to maintain the structural integrity of the membrane, providing rigidity and support. . A researcher claims that genetic variation provides organisms with the ability to survive and reproduce in different environments. A zinc ion binds to the ALAD active site, where it forms favorable interactions with the side chains of three amino acids. AP Biology Unit 2 Test Flashcards | Quizlet AP Biology Unit 2 Test Term 1 / 31 Water passes quickly through cell membranes because a. rice paper rolls woolworths AP Biology Scoring Guide Unit 7 Progress Check: MCQ Part A 10. At 900C900^\circ C900C, KcK_cKc is 0.238. 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. AP BIO - Unit 6 Topic Questions. AP Biology Practice Test: Unit 2 Cell Structure & Function. 1, because testosterone is nonpolar and can diffuse through the membrane. In order for a cell to function properly, it's important for the internal environment to be maintained in a way that is conducive to the life and function of the cell. A researcher claims that the incorporation of carbon dioxide into organic molecules during photosynthesis does not violate the second law of thermodynamics. A) Young European flycatchers hatch from eggs when caterpillar biomass is available for the young birds to consume and convert into energy for growth. All gametes are unicellular, ruling out (D). 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 A. 2023 Fiveable Inc. All rights reserved. Based on the model presented in figure 1, which of the following changes will most likely result from a depletion of available ATP stores inside the cell? 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. I_am_failing. A) The additional pigments allow the cyanobacteria to store light energy so that it can be used at night to continue photosynthesis. Which of the following statements best explains the findings? Which of the following best predicts what will happen to the lysosomal enzymes if the proteins that transport H+ ions from the cytosol into the lysosome are damaged? 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. Call 1-800-KAP-TEST or email customer.care@kaplan.com, Contact Us Hufflepuff_Hamilton. What should a team of students do next to obtain data that are more inclusive? Create engaging Jeopardy-style quiz games in minutes or. Of the statements listed, the only one that logically follows is (A): in carnivores, the cecum becomes unnecessary, and starts to shorten. D. The lysosome will repair the membrane and not die. or. A.water enters the cell causing it to sink, B. Unit 6 MCQ Part B, #1. Get unlimited access to this and over 100,000 Super . Which of the following statements best justifies the researcher's claim? 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. Cluster Hires in Carbon Electronics at NC State University in . C(s)+CO2(g)2CO(g);H=172.5kJC(s) + CO_2(g) \rightleftharpoons 2CO(g); \Delta H^\circ = 172.5 kJC(s)+CO2(g)2CO(g);H=172.5kJ 2023 Fiveable Inc. All rights reserved. QuebedeauxJ21. Question 4. Which of the following statements best establishes a connection between the observation and the researcher's claim? Incubate the cells in the presence of several different concentrations of the protein. Q. Not on this quizlet: 16 Chloroplasts and some prokaryotes share similar photosynthetic reactions. What is the value of KpK_pKp? Cell Respiration Practice Questions AND ANSWER KEY for the questions are posted below. (Click on the image to see a larger version) Check out the AP Bio Unit 2 Replays or watch the 2021 Unit 2 Cram. Repeat the process with other salt concentrations. 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. Researchers investigated the effect of urea on the three-dimensional structure of a certain enzyme. What is one example of an advantage of biodiversity in an ecosystem? Ap Bio Ch 18 Reading Guide Answers (PDF). Expand All Identify TWO topographic . Sodium ions cannot move across the cell membrane with membrane protein activity is blocked. AP Biology Free Practice Question #2 Dichlorophenolindophenol (DPIP), an electron acceptor that changes from blue to clear when reduced, can be used to visually determine the rate of photosynthesis. c. How will the equilibrium system respond if additional Systems Interactions Browse AP Biology exam prep resources including unit reviews, big ideas, free resp. 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). the amount of energy required to raise the temperature of 1 gram of water by 1 degree C. the amount of energy released by metabolism of one gram of glucose. The Expert s Guide to the AP European History Exam. Metformin activates AMPK in liver cells but cannot cross the plasma membrane. There are different types of transport proteins, including channels, pumps, and carriers, which work to transport molecules in different ways. Ap Bio Unit 6 Progress Check: MCQ Flashcards. Which of the following indicates where testosterone enters the cell and why is able to cross at that point? Use the video below to help you with the pigment FRQ AP Biology Lab 4: Plant Pigments and Photosynthesis Mitochondria are surrounded by a double membrane. The arrangement of the phospholipids in the bilayer creates a semi-permeable barrier that selectively allows certain molecules to pass through while preventing others from entering or leaving the cell. C) Female European flycatchers require energy to lay eggs, so they lay their eggs when the caterpillar biomass is maximal. 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? Study Guide for Anatomy & Physiology, 9th Edition provides a . Which tree shows a different evolutionary history for taxa AD than the other three trees? 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. 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. Answer the following questions about the various processes depicted in the diagram and about the cell in which they are occurring. Period7langhart. A. For your second answer, remember that efficiency is (energy output)/ (energy input). Compare the graphs of these two treatments to the original graph. 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. Donate or volunteer today! At high temperatures, a dynamic equilibrium exists between C) The experiment can be repeated without guaiacol, which will reveal the effect of guaiacol on the reaction rates. On separate diagrams, sketch the formation of sigma and pi bonds. The engulfed prokaryote then formed an Endosymbiotic relationship with the eukaryotic host. AP Biology Unit 2: Cell Structure & Function Practice Test . The local atmospheric pressure is 88 kPa. A.Ribosomes, cell membranes, nucleic acids, B. Which of the following best predicts the immediate result of adding more substrate to the reaction mixture at the point indicated by the arrow in Figure 3-3? 23 terms. After the completion of glycolysis, the rest of cellular respiration occurs in the mitochondria, given that oxygen is present. Exam Date: may 2, 2022. . C) Some plasmids cannot exist in a bacterial cell with certain other plasmids. of COCOCO and CO2CO_2CO2? The Course challenge can help you understand what you need to review. When beetroot cells are placed in a solution with cellulase, the solution remains clear. momentum HO of the system about the base satellite? The lysosomal enzymes will NOT become active, since there will be no active transport of H+ ions. The movement of molecules across the plasma membrane is regulated by the hydrophobic and hydrophilic properties of the phospholipids. A. light reactions produce sugar, while the Calvin cycle produces O2. C. Chemical energy in the form of ATP Ap Bio Unit 6 Progress Check: MCQ Flashcards. 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? What additional procedure would best help determine whether these movements are due to active transport or passive transport? Subcellular and organelle components are especially important to know because they pop up throughout the year. Evolution 2. If the transformation depicted in organelle B requires oxygen, what form of energy is represented by E IV? B) ATP synthase activity depends on a proton gradient across the thylakoid membrane. answer choices From the A side to the B-side From the B side to the A side none of the purple molecules would move they would move equally back and forth in a state of dynamic equilibrium Question 2 300 seconds Q. Water enters the cell causing it to swell, C. Water leaves the cell causing the solution to become more hypertonic, D. Water leaves the cell, causing it to shrink, A. Water will rush into the lysosome causing it to burst. Link to google doc with pictures: https://docs.google.com/document/d/1PwIJR9rrGvUy6aj5o4boqlzjh2HPbukkgoSELLUmvT0/edit. A. The valinomycin treatment caused a decrease in the activity of the mitochondria. AP Biology Practice Test: Unit 4 Cell Communication & Cell Cycle. C) Yeast cells produce invertase, which is an enzyme that catalyzes the conversion of the disaccharide sucrose into glucose and fructose. By PASSIVE transport from an area of LOW osmolarity to an area of HIGH osmolarity. In humans, blood pH is around 7.4, and a decrease in blood pH to 6.4 would be fatal. AP Biology Unit 6 2021. a year ago by . The piston that is free to move has a mass of 12 kg and a diameter of 25 cm. D) Repeating the experiment using heat-denatured peroxidase. 18 terms. Stand alone questions on the AP Biology test are your average multiple choice question and make up a little over half of the questions in the section. 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. The production and secretion of proteins. C) The amount of product will increase until the reaction reaches its equilibrium point or until the substrate is used up by the reaction. All organelles are essential, and students must understand all of them. Get started for free! C) Some enzymes embedded in the thylakoid membrane catalyze the hydrolysis of ATP. . AP BIOLOGY > Unit 2 Resources A Practice Exam AND Answer Key have been posted below. Which way would the purple molecules move through the semi-permeable membrane? Students cultivate their understanding of biology through inquiry-based investigations as they explore topics like evolution, energetics, information storage and transfer, and system interactions. AP Bio: AP Classroom Unit 2 MCQ Flashcards. A) Organisms contain enzymes that lower the activation energies of specific chemical reactions 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. A) The thylakoid membrane is more permeable to carbon dioxide than to polar molecules. A deep dive into how life on Earth originated, adapted, and flourished. B. , Cell size is a concern because surface area-to-volume ratios affect the ability of a biological system to obtain necessary resources, eliminate wastes, pull in or remove heat energy, and exchange materials with the environment. C) Photosynthetic organisms use the organic molecules during photosynthesis for growth and repair. D. Chemical energy released by glycolysis. 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