Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 6.6, Problem 1TYK
During the citric acid cycle, what happens to carbon?
- Organic carbon is released as inorganic carbon dioxide.
- Carbon is oxidized to make NADH and FADH2.
- Carbon dioxide is used to make ATP.
- All of the above are correct.
- Only a and b are correct.
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Students have asked these similar questions
After radioactive carbon was fed into the citric acid cycle, where might it be found?
A. ATP
B. NADH
C. Carbon Dioxide
D. Proton Gradient
Nadph is primarily produced in the ___ through the ___ process. it is consumed during ___
a. mitochondrial matrix, Krebs cycle, electron transport chain
b. Cytoplasm and mitochondria, glycogen synthesis, fatty acid breakdown
c. Cytoplasm, Pentose phosphate shunt, fatty acid breakdown
d. Cytoplasm, Pentose phosphate shunt, fatty acid synthesis
What happens at the end of the electron transport chain of cellular respiration?
4 electrons combine with oxygen (O2) and protons.
4 electrons combine with oxygen atom (O) and water.
The 2 original electrons combine with oxygen (O2).
The 2 original electrons combine with NAD+.
1 electron combines with oxygen (O2) and hydrogen.
1 electron combines with oxygen (O2).
Chapter 6 Solutions
Principles of Biology
Ch. 6.1 - Which do you think has more entropy, an NaCl...Ch. 6.1 - Prob. 1TYKCh. 6.1 - Prob. 2TYKCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.2 - Prob. 1TYKCh. 6.2 - An inhibitor raises the Km for an enzyme but has...Ch. 6.3 - Prob. 1CCCh. 6.3 - Prob. 1TYK
Ch. 6.3 - Prob. 2TYKCh. 6.3 - Prob. 3TYKCh. 6.4 - Prob. 1CCCh. 6.4 - Prob. 1BCCh. 6.4 - Prob. 1TYKCh. 6.4 - Prob. 2TYKCh. 6.4 - Prob. 2CCCh. 6.5 - Prob. 1TYKCh. 6.6 - During the citric acid cycle, what happens to...Ch. 6.7 - Prob. 1CCCh. 6.7 - Prob. 2CCCh. 6.7 - Prob. 3CCCh. 6.7 - Prob. 1TYKCh. 6.7 - Prob. 2TYKCh. 6.7 - Prob. 3TYKCh. 6.8 - Prob. 1CCCh. 6.8 - Prob. 1TYKCh. 6 - According to the second law of thermodynamics....Ch. 6 - Reactions that release free energy are exergonic....Ch. 6 - Prob. 3TYCh. 6 - Prob. 4TYCh. 6 - Prob. 5TYCh. 6 - Prob. 6TYCh. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Prob. 10TYCh. 6 - Describe the mechanism and purpose of feedback...Ch. 6 - What causes the rotation of the y subunit of ATP...Ch. 6 - PRINCIPLES A principle of biology is that living...Ch. 6 - Discuss how life can maintain its order in spite...Ch. 6 - Prob. 2CBQ
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- The glucose that enters the glycolysis pathway is split into two molecules of _____. a. ATP b. phosphate c. NADH d. pyruvatearrow_forwardWhat happens at the end of the electron transport chain of cellular respiration? A. 4 electrons combine with oxygen (O2) and protons. B. 4 electrons combine with oxygen atom (O) and water. C. The 2 original electrons combine with oxygen (O2). D. The 2 original electrons combine with NAD+. E. 1 electron combines with oxygen (O2) and hydrogen. F. 1 electron combines with oxygen (O2).arrow_forwardWhich of the following is NOT true of the electron transport chain? a. It produces NADH, as a result of electrons being transferred from glucose to NAD+ b. End products include CO2, water, and pyruvate c. It allows for the controlled release of energy for ATP synthesis d. It is part of the oxidative phosphorylation processarrow_forward
- Which of the following are produced directly as a result of the movement of electrons through the photosynthetic electron transport chain carbohydrates and ATP ATP and NADPH O2 and carbohydrates H2O and carbohydratesarrow_forwardDuring oxygenic photosynthesis, what happens to the oxygen atoms that were originally present only in substrate water molecules (as they are transformed into product molecules)? they end up in carbon dioxide, glucose, and water molecules they end up in both glucose and water molecules they end up in glucose molecules only they end up in carbon dioxide molecules only they end up in diatomic oxygen gas molecules onlyarrow_forwardWhy is oxygen required for ATP generation by the electron transport chain and oxidative phosphorylation? a) Oxygen is needed for glycolysis b) Oxygen is the electron donor for the electron transport chain producing CO2 c) Oxygen helps proteins fold better d) Oxygen is needed to made water and produce protons for the electron transport chain e) Oxygen is the ultimate electron acceptorarrow_forward
- Which of the following is true about how oxygen is formed during photosynthesis? Select one or more: a. oxygen is formed during the production of sugars b. carbon dioxide molecules are broken down to form oxygen c. oxygen is formed during electron transport d. water molecules are broken down to form oxygenarrow_forwardWhat cycle sends electrons, via NADH and FADH2, to the respiratory chain? A) Glycolysis B) Krebs Cycle C) Electron Transport Chainarrow_forwardA What is the main driving force for massive production of ATP molecules in the mitochondria? 1 point proton gradient established from electron transport system 2 electrons obtained from the citric acid cycle 3 reduction of oxygen by glycolysis 4 transport of water via ATP synthase B What are major products from the citric acid cycle? 1 GTP, oxygen 2 NADH, carbon dioxide 3 water, NADH 4 ATP, oxygenarrow_forward
- How are ATP and NADH similar? They are interchangeable energy carriers, allowing the cell to use whichever molecule is in greatest abundance as a source of energy. They both act as electron carriers in the cell. Both compounds function as mobile energy carrier molecules in a cell. Both molecules are oxidized by molecular oxygen (O2) in reactions that release energy for use by the cell. Both ATP and NADH function as reducing agents in metabolic reactions.arrow_forwardWhich of the following is the most likely explanation for a situation where the ELECTRON TRANSPORT CHAIN (ETC) does not produce ATP in the presence of oxygen. a. A toxin has disrupted the Krebs Cycle b. A toxin has altered a protein in the ETC c. Too much NADH has been produced in the Krebs Cycle d. Too much NADH has been produced in Glycolysisarrow_forwardAt the end of cellular respiration, how many molecules of NADH are there? Group of answer choices a)2 b)6 c)0 d)4 e)8arrow_forward
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