Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 6, Problem 3MCQ
What is the role of ATP synthase?
a. It uses ATP to make glucose.
b. It uses a proton gradient to make ATP.
c. It uses ATP to make a proton gradient.
d. It synthesizes ATP directly from glucose.
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Why is the formation of ATP by ATP synthase referred to as oxidative phosphorylation?
A. A phosphate is transferred from oxygen to ADP to form ATP
B. Oxygen provides the mechanical energy that is used to create ATP from ADP
C. Oxygen is the final electron acceptor in the electron transport chain, which creates the proton gradient necessary to power ATP synthase
D. ADP combines with oxygen to form ATP
How will the cell shift its metabolic processes in response to the level of pyruvate and in order to produce ATP?
A. It will shift from aerobic respiration to fermentation
B. It will shift from aerobic respiration to anaerobic respiration
C.It will continue with aerobic metabolism using oxygen in the cytosol to make ATP
D. It will shift from anaerobic respiration to fermentation
During glycolysis, pyruvate oxidation, and the citric acid cycle, NADH is produced. The citric acid cycle also produces FADH2. What is the purpose of these molecules?
a. to produce carbon dioxide to breathe out
b. to produce oxygen that is needed for the electron transport chain
c. to carry electrons to the electron transport chain
d. to provide the ADP and phosphate that are needed to make ATP
Chapter 6 Solutions
Biology: Concepts and Investigations
Ch. 6.1 - Why do all organisms need ATP?Ch. 6.1 - What are the three general ways to generate ATP...Ch. 6.1 - Prob. 3MCCh. 6.1 - Prob. 4MCCh. 6.2 - Prob. 1MCCh. 6.2 - What occurs in each of the three stages of...Ch. 6.3 - Prob. 1MCCh. 6.3 - Prob. 2MCCh. 6.4 - Prob. 1MCCh. 6.4 - Prob. 2MC
Ch. 6.4 - Prob. 3MCCh. 6.5 - Prob. 1MCCh. 6.5 - Prob. 2MCCh. 6.5 - Prob. 3MCCh. 6.5 - Prob. 4MCCh. 6.6 - Prob. 1MCCh. 6.6 - How does the actual ATP yield compare to the...Ch. 6.7 - Prob. 1MCCh. 6.7 - Prob. 2MCCh. 6.8 - Prob. 1MCCh. 6.8 - Prob. 2MCCh. 6.8 - Prob. 3MCCh. 6.9 - Prob. 1MCCh. 6.9 - Why must the first metabolic pathways have been...Ch. 6.9 - What is the evidence that photosynthesis may have...Ch. 6.10 - What hypothesis were the researchers testing, and...Ch. 6.10 - Prob. 2MCCh. 6 - Which of the following best describes aerobic...Ch. 6 - Which stage in cellular respiration produces the...Ch. 6 - What is the role of ATP synthase? a. It uses ATP...Ch. 6 - Prob. 4MCQCh. 6 - Prob. 5MCQCh. 6 - What is endosymbiosis? a. A type of fermentation...Ch. 6 - Respiration contains the Latin word root spiro,...Ch. 6 - All steps of cellular respiration are closely...Ch. 6 - How might a mitochondrion's double membrane make...Ch. 6 - Health-food stores sell a product called pyruvate...Ch. 6 - At what point does O2 enter the energy pathways of...Ch. 6 - Describe the energy pathways that are available...Ch. 6 - Prob. 7WIOCh. 6 - Describe how aerobic respiration occurs in...Ch. 6 - Prob. 9WIOCh. 6 - Explain the fact that species as diverse as humans...Ch. 6 - Prob. 11WIOCh. 6 - Prob. 1PITCh. 6 - Prob. 2PITCh. 6 - Prob. 3PITCh. 6 - Where would fermentation, anaerobic respiration,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How would a ubiquinone inhibitor directly affect the ATP yield? a. By increasing the electron transport rate to a fraction of 1/2 b. By limiting the hydrogen protons pumped to a fraction of 1/4 c. By pumping additional hydrogen protons to a fraction of 1/2 d. By disabling the entire electron transport chain and chemiosmotic systemarrow_forwardWhat is the importance of fermentation to cellular metabolism? a. It generates glucose for the cell in the absence of O2. b. It oxidizes NADH to NAD+ during electron transport. c. It oxidizes NADH to NAD+ in the absence of O2. d. It reduces NADH to NAD+ in the absence of O2.arrow_forwardWhat are NADH and FADH2? a. Oxidized coenzymes which carry electrons b. energy-producing organelles c. short-term, socially popular sources of hydrogen gas d. Reduced coenzymes which carry electronsarrow_forward
- What drives the rotation of the F1 head (rotor) of ATP synthase? a. proton movement from intermembrane space to the matrix b. proton movement from the matrix to the intermembrane space c. ATP hydrolysis d. ATP condensation e. proton movement from the cytoplasm to the intermembrane spacearrow_forwardAt how many protein complex sites in the electron transport chain does proton pumping occur? a. 1 b. 2 c. 3 d. 4arrow_forwardWhy is oxygen important in aerobic cellular respiration? a. Without oxygen, the Citric acid cycle will be disrupted b. Oxygen is the final electron acceptor during the electron transport chain c. they produce carbon dioxide and water d. It provides electrons during cellular respirationarrow_forward
- What is the role of thermogenin in the mitochondria of brown adipose cells?A. It generates heat by uncoupling electron transport from ATP synthesisB. It generates heat by increasing ATP productionC. It generates heat by increasing the rate of proton pumping in the mitochondrionD. It is involved in the regulation of apoptosisE. It generates heat by increasing calcium transportarrow_forwardHow many NADH2 molecules are formed in cytoplasm when a glucose molecule is completely oxidised? a.2 b.6 c.3 d.1arrow_forwardHow does ATP participate in coupled reactions? a. Hydrolysis of ATP fuels endergonic reactions. b. Synthesis of ATP fuels endergonic reactions. c. Hydrolysis of ADP fuels exergonic reactions. d. Synthesis of ADP fuels exergonic reactions.arrow_forward
- Why is the oxygen we breath important for cellular respiration? Check all that apply. A. final electron acceptor B. final proton acceptor C. moves into mitochondria to attach with protons and electrons to produce water D. moves out of the mitochondria to attach with protons and electrons to produce waterarrow_forward1. Where is most of the ATP’s energy stored?A. In the bond between the adenine and phosphate groupsB. In the bond between the first and third phosphate groups.C. In the bond between the first and second phosphate groups.D. In the bond between the second and third phosphate groups. 2. When is energy released from an ATP molecule?A. When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis.B. When two phosphate group are removed by breaking a phosphoanhydride bond in a process called hydrolysisC. The addition of a third phosphate group forms adenosine triphosphate (ATP).D. The addition of a second phosphate group forms adenosine diphosphate (ADP). 3. The continual breakdown and regeneration of ATP is known as_______.A. ATP CycleB. Cell CycleC. HydrolysisD. Phosphorylationarrow_forwardDetermine the statement that explains ATP molecule provides energy during cellular respiration processes. * A. Energy is released when the bond between two phosphate groups in ATP is broken. B. Energy is released when a phosphate group joins the molecule of ADP. C. Energy is released when one phosphate groups are removed from the molecule ATP. D. Energy is released when the bond between phosphate groups and sugar is broken.arrow_forward
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