photosynthesis | more photosynthesis | cellular respiration | fermentation | |
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20 | 20 | 20 | 20 | 20 |
30 | 30 | 30 | 30 | 30 |
40 | 40 | 40 | 40 | 40 |
50 | 50 | 50 | 50 | 50 |
Final Question |
In the thylakoid membranes, what is the main role of the pigment molecules in a light-harvesting complex? A) split water and release oxygen to the reaction–center chlorophyll B) transfer light energy to the reaction–center chlorophyll C) synthesize ATP from ADP and i D) transfer electrons to ferredoxin and then NADPH E) concentrate photons within the stroma
In the thylakoid membranes, what is the main role of the pigment molecules in a light-harvesting complex? A) split water and release oxygen to the reaction–center chlorophyll B) transfer light energy to the reaction–center chlorophyll C) synthesize ATP from ADP and i D) transfer electrons to ferredoxin and then NADPH E) concentrate photons within the stroma
B. transfer light energy to the reaction -center chlorophyll
Which of the following are directly associated with photosystem I? A) harvesting of light energy by ATP B) receiving electrons from the thylakoid membrane electron transport chain C) generation of molecular oxygen D) extraction of hydrogen electrons from the splitting of water E) passing electrons to the thylakoid membrane electron transport chain
Which of the following are directly associated with photosystem I? A) harvesting of light energy by ATP B) receiving electrons from the thylakoid membrane electron transport chain C) generation of molecular oxygen D) extraction of hydrogen electrons from the splitting of water E) passing electrons to the thylakoid membrane electron transport chain
B. receiving electrons from the thylakoid membrane electron transport chain
What does the chemiosmotic process in chloroplasts involve? A) establishment of a proton gradient across the thylakoid membrane B) diffusion of electrons through the thylakoid membrane C) reduction of water to produce ATP energy D) movement of water by osmosis into the thylakoid space from the stroma E) formation of glucose, using carbon dioxide, NADPH, and ATP
What does the chemiosmotic process in chloroplasts involve? A) establishment of a proton gradient across the thylakoid membrane B) diffusion of electrons through the thylakoid membrane C) reduction of water to produce ATP energy D) movement of water by osmosis into the thylakoid space from the stroma E) formation of glucose, using carbon dioxide, NADPH, and ATP
A. Establishment of a proton gradient across the thylakoid membrane
Researchers studying mitochondria recently discovered that some abnormal cells lack the inner space normally present in healthy mitochondria. Closer examination of the abnormal cells showed that the pair of mitochondrial membranes that normally define the inner space were directly attached to each other. Which of the following outcomes is the most likely due to the structural change is that the abnormal cells? (A) The cells will be unable to produce ATP via chemiosmosis. (B) The cells will be unable to synthesize acetyl Co-A from pyruvate. (C) The cells will be unable to produce lactic acid by fermentation. (D) The cells will be unable to carry out glycolysis.
Researchers studying mitochondria recently discovered that some abnormal cells lack the inner space normally present in healthy mitochondria. Closer examination of the abnormal cells showed that the pair of mitochondrial membranes that normally define the inner space were directly attached to each other. Which of the following outcomes is the most likely due to the structural change is that the abnormal cells? (A) The cells will be unable to produce ATP via chemiosmosis. (B) The cells will be unable to synthesize acetyl Co-A from pyruvate. (C) The cells will be unable to produce lactic acid by fermentation. (D) The cells will be unable to carry out glycolysis.
B. Energy is consumed
When a photon is absorbed by a molecule, the photon a. loses its ability to generate any energy. b. raises the molecule from a ground state of low energy to an excited state. c. affects the molecule in ways that are not clearly understood. d. causes a change in the velocity of the wavelengths. e. makes the molecule more stable.
When a photon is absorbed by a molecule, the photon a. loses its ability to generate any energy. b. raises the molecule from a ground state of low energy to an excited state. c. affects the molecule in ways that are not clearly understood. d. causes a change in the velocity of the wavelengths. e. makes the molecule more stable.
b. raises the molecule from a ground state of low energy to an excited state.
When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs? A) The pH of the matrix increases. B) ATP synthase pumps protons by active transport. C) The electrons gain free energy. D) The cytochromes phosphorylate ADP to form ATP. E) NAD+ is oxidized.
When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs? A) The pH of the matrix increases. B) ATP synthase pumps protons by active transport. C) The electrons gain free energy. D) The cytochromes phosphorylate ADP to form ATP. E) NAD+ is oxidized.
A. the pH of the matrix increases
The oxygen consumed during cellular respiration is involved directly in which process or event? A) glycolysis B) accepting electrons at the end of the electron transport chain C) the citric acid cycle D) the oxidation of pyruvate to acetyl CoA E) the phosphorylation of ADP to form ATP
B. accepting elcetrons at the end of the electron transport chain
Researchers studying mitochondria recently discovered that some abnormal cells lack the inner space normally present in healthy mitochondria. Closer examination of the abnormal cells showed that the pair of mitochondrial membranes that normally define the inner space were directly attached to each other. Which of the following outcomes is the most likely due to the structural change is that the abnormal cells? (A) The cells will be unable to produce ATP via chemiosmosis. (B) The cells will be unable to synthesize acetyl Co-A from pyruvate. (C) The cells will be unable to produce lactic acid by fermentation. (D) The cells will be unable to carry out glycolysis.
Researchers studying mitochondria recently discovered that some abnormal cells lack the inner space normally present in healthy mitochondria. Closer examination of the abnormal cells showed that the pair of mitochondrial membranes that normally define the inner space were directly attached to each other. Which of the following outcomes is the most likely due to the structural change is that the abnormal cells? (A) The cells will be unable to produce ATP via chemiosmosis. (B) The cells will be unable to synthesize acetyl Co-A from pyruvate. (C) The cells will be unable to produce lactic acid by fermentation. (D) The cells will be unable to carry out glycolysis.
A. the cells will be unable to produce ATP via chemiosmosis
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