Unit 5 Pre-Reading Quiz_ BIOL 200 101_104 2022W1 Fundamentals of Cell Biology

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1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 1/8 Unit 5 Pre-Reading Quiz Due Nov 14, 2022 at 10a.m. Points 17 Questions 11 Available Nov 2, 2022 at 10a.m. - Nov 14, 2022 at 10a.m. Time Limit 120 Minutes Allowed Attempts 2 Instructions This quiz was locked Nov 14, 2022 at 10a.m.. Attempt History Attempt Time Score LATEST Attempt 1 4 minutes 17 out of 17 Score for this attempt: 17 out of 17 Submitted Nov 12, 2022 at 1:13a.m. This attempt took 4 minutes. Pre-Reading Quizzes are intended to give you an excuse to look over the Pre-Reading Material before you get to class. They are not designed for you to all of your learning here. This of them as a 'first exposure' so that you know before class what some of the hard parts are. Each quiz is worth 0.5%, and we will count the best 6 of 9 quizzes. Use the Pre-Reading Guide (https://canvas.ubc.ca/courses/113307/files/21929916/download?wrap=1) (https://canvas.ubc.ca/courses/113307/files/21929916/download?download_frd=1) to help you remain active as you read the online notes, and don't forget to do the Pre-Reading Feedback Survey (https://canvas.ubc.ca/courses/113307/quizzes/531578) afterwards , so that we know what parts of this week's readings were the most challenging! 2 / 2 pts Question 1 What pieces of evidence formed the basis for the endosymbiont theory? Choose all that apply. Chloroplasts and mitochondria ...

1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 2/8 ...have linear genomes. ...have similar gene sequences as several bacteria. Correct! Correct! ...have a single membrane. ...arise by division of pre-existing chloroplasts/mitochondria. Correct! Correct! ...have double membranes. Correct! Correct! ...have circular genomes. Correct! Correct! 1 / 1 pts Question 2 Answer 1: Answer 2: Osmosis describes the movement of water across a biological membrane and down its concentration gradient. In chemiosmotic coupling, useful energy is harnessed by the cell from the spontaneous movement of [ Select ] across the inner mitochondrial membrane into the matrix [ Select ] a concentration gradient. protons Correct! Correct! along Correct! Correct! Great work!

1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 3/8 3 / 3 pts Question 3 Other Incorrect Match Options: Neither organelle All of the components in the list below exist in either the mitochondria, the chloroplast or they can be found in either. Match up the components to the organelle in which they exist. Porins Both mitochondria & c Correct! Correct! Electron Transport Chain Both mitochondria & c Correct! Correct! ATP Synthase Both mitochondria & c Correct! Correct! Transporter for pyruvate import Mitochondria only Correct! Correct! Transporter for ATP export Mitochondria only Correct! Correct! Thylakoid membrane Chloroplast only Correct! Correct! Triose phosphate exporter Chloroplast only Correct! Correct! Importer for newly synthesized proteins Both mitochondria & c Correct! Correct! Great work!

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1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 4/8 1 / 1 pts Question 4 Which of the following is NOT a characteristic of mitochondria: They are capable of dividing. They are small and static in morphology. Correct! Correct! They are variable in shape and size Then are able to fuse into networks. They are able to move around within the cell. Great work! 3 / 3 pts Question 5 The matrix of a mitochondrion contains which of the following? Choose all that apply The electron transport chain Calvin cycle enzymes TCA cycle enzymes Correct! Correct! Protein synthesis components Correct! Correct! Chlorophyll Protons pumped from the ETC

1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 5/8 Mitochondrial DNA Correct! Correct! ATP synthase Ribosomes Correct! Correct! Great work! 1 / 1 pts Question 6 The chloroplast is a member of a larger family of organelles that are only found in plants and algae. What is the name of this family? plastids Correct! Correct! orrect Answers orrect Answers plastids the plastids the plastid family plastid Great work! 1 / 1 pts Question 7 Photosynthesis is a process that takes place in chloroplasts and uses light energy to generate high-energy electrons, which are passed along an electron-transport chain.

1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 6/8 Where are the proteins of the electron-transport chain located in chloroplasts? thylakoid membrane Correct! Correct! thylakoid space inner membrane stroma Great work! 1 / 1 pts Question 8 In stage 1 of photosynthesis, a proton gradient is generated and ATP is synthesized. Where do protons become concentrated in the chloroplast? stroma intermembrane space thylakoid lumen Correct! Correct! thylakoid membrane Great work! 2 / 2 pts Question 9

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1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 7/8 The thylakoids contain which of the following? Choose all that apply. Calvin cycle enzymes ATP synthase Correct! Correct! Protein synthesis components ETCs Correct! Correct! Chlorophyll and other light harvesting pigments Correct! Correct! Chloroplast genome Great work! 1 / 1 pts Question 10 Which of the following is NOT a primary function for the chloroplast? Produce purines and pyrimidines to build nucleic acids. Produce ATP as an energy source for the cell. Correct! Correct! Produce carbohydrates by reducing CO . 2 Produce amino acids for the cell. Great work!

1/9/23, 4:40 PM Unit 5 Pre-Reading Quiz: BIOL 200 101/104 2022W1 Fundamentals of Cell Biology https://canvas.ubc.ca/courses/113307/quizzes/531571 8/8 1 / 1 pts Question 11 Which of the following statements best describes the relationship between the light-dependent and light-independent reactions of photosynthesis? The light-dependent reactions pass electrons through an electron transport chain to the dark reactions to make ATP. The light-dependent reactions produce ATP and NADPH, which are then used by the dark reactions to make sugars. Correct! Correct! The light-independent reactions release energy from ATP, and the dark reactions require energy to make sugars. The light-dependent reactions produce carbon dioxide, which is then used by the dark reactions to make sugars. Great work! Quiz Score: 17 out of 17

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