Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Textbook Question
Chapter 6, Problem 6MCQ
What is endosymbiosis?
a. A type of fermentation
b. The transport of pyruvate into the matrix of the mitochondria
c. An explanation for the origin of mitochondria
d. The movement of electrons along the electron transport chainn
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Which step of the cellular respiration pathway can take place in the absence of oxygen?
A.Glycolysis
B.Kreb’scycle
C.Electron transport chain
D.Fermentation
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
Which stage in cellular respiration produces the most ATP? a. Glycolysis c. Krebs cycle b. Pyruvate oxidation d. Electron transport
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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- Why 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_forwardWhat is the role of NAD+ in the process of cellular respiration? a. It functions as an electron carrier. b. It functions as an enzyme. c. It is the final electron acceptor for anaerobic respiration. d. It is a nucleotide source for the synthesis of ATP.arrow_forwardWhich do the electron transport chains of mitochondria and chloroplasts have in common? A. oxygen as an electron donor B. water as an electron acceptor C. use of a hydrogen ion gradient D. one main membrane protein pumparrow_forward
- How does cellular respiration differ in prokaryotes and eukaryotes? A. Eukaryotes perform reactions in mitochondria; prokaryotes use the plasma membrane. B. Eukaryotes use substrate-level ATP synthesis; prokaryotes use oxidative phosphorylation. C. Eukaryotes do not use oxygen; prokaryotes only use oxygen. D. Eukaryotes use NAD+/NADH as electron acceptors; prokaryotes use FAD+/FADH2.arrow_forwardWhich stage of cellular respiration DOES NOT produce NADH? A. oxidative phosphorylation B. pyruvate oxidation C. glycolysis D. Krebs cyclearrow_forwardDuring 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 ATParrow_forward
- If you ran a molecule through each of these processes, when would the MOST reduced carbon compound be found? A. Start of glycolysis B. Start of electron transport chain C. End of chemiosmosis D. End of citric acid cyclearrow_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_forwardWhich of the takes place during oxidative phosphorylation in mitochondria? a. protons are pumped from the matrix to the intermembrane space b. protons are pumped from the intermembrane space to the matrix c. electrons are pumped from the matrix to the intermembrane space d. electrons are pumped from the intermembrane space to the matrix e. NADH is pumped from the matrix to the intermembrane spacearrow_forward
- Where in the cell does glycolysis occur? A. on the outer mitochondrial membrane B. in the endoplasmic reticulum C. in the cytoplasm D. in the fluid of the mitochondriaarrow_forwardWhich two processes lead directly to the production of large amounts of ATP by the enzyme ATP synthase? A. The electron transport chain B. Fermentation C. The Krebs cycle D. Glycolysis It needs two answer there can be two answer alsoarrow_forwardWhat compound receives elections from NADH? a. FMN b. ubiquinone c. cytochrome c₁ d. oxygenarrow_forward
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