How is ATP produced in chloroplasts? Select one: a. When a photon hits an ADP molecule, it is kicked to a higher energy level, so it can combine with P to form ATP b. an enzyme transfers the P group from a substrate to ADP, forming ATP c. water is split into protons, electrons and oxygen. d. When a photon hits a chlorophyll molecule, the energy is transformed into heat e. an electron transport chain creates a proton gradient over a membrane. ATP is made when these protons move passively through a large protein complex embedded in the membrane.

How is ATP produced in chloroplasts? Select one: a. When a photon hits an ADP molecule, it is kicked to a higher energy level, so it can combine with P to form ATP b. an enzyme transfers the P group from a substrate to ADP, forming ATP c. water is split into protons, electrons and oxygen. d. When a photon hits a chlorophyll molecule, the energy is transformed into heat e. an electron transport chain creates a proton gradient over a membrane. ATP is made when these protons move passively through a large protein complex embedded in the membrane.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter6: Where It Starts-photosynthesis

Section: Chapter Questions

Problem 15SA: Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2...

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Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2 fixation b. converts light to chemical energy ____ autotroph c. self-feeder ____ ATP forms NADPH does not d. electrons cycle back to photosystem ____ photorespiration e. problem in C3 plants ____ photosynthesis f. Calvin-Benson cycle product ____ pigment g. water molecules split ____ photolysis in photosynthesis h. rubisco function
Is the following statement true or false? Unlike animals, which make many ATP by aerobic respiration, plants make all of their ATP by photosynthesis.
What two products result from photosynthesis? a. water and carbon dioxide b. water and oxygen c. glucose and oxygen d. glucose and carbon dioxide
How is the proton gradient of H+ generated in chloroplasts during photosynthesis? A. Light splits water molecules in the stroma, causing the release of protons. B. Protons are pumped across the thylakoid membrane using energy from ATP. C. Light causes protons to flow through protein channels in the thylakoid membrane. D. The flow of electrons from carrier to carrier in the thylakoid membrane causes the pumping of protons.
The graph here shows the change in energy level for the reactants and the products of photosynthesis. Given the energy levels modeled in the graph, which statement accurately compares the energy of the products and the reactants with regards to photosynthesis? A. Water and Oxygen have the highest energy compared to glucose and and carbon dioxide B. Glucose and Oxygen gas have higher energy levels compared to water and carbon dioxide C. Glucose and water have the same energy levels compared to carbon dioxide and oxygen gas D. Glucose and oxygen have a lower energy energy level associated with them compared to carbon dioxide and water
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 oxygen
Which statement about the light reactions of photosynthesis and cellular respiration is correct? a. Both reactions occur in the cell cytoplasm b. plants do not require mitochondria because they produce ATP via photosynthesis c. ATP is produced as a result of the actions of an electron transport chain in both processes d. Light reactions and cellular respiration produce the same waste products e. the final electron acceptor in the light reactions is oxygen
Compare and contrast cellular respiration and photosynthesis. A. Photosynthesis stores energy in NADH while cellular respiration stores energy in ATP. B. Respiration is catabolic while photosynthesis is anabolic. C. Only respiration creates ATP. D. Photosynthesis releases C02 while respiration releases 02.
What 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).
What molecule is split in the oxygen-releasing light reactions of photosynthesis? A. Water B. Chlorophyll C. Carbon dioxide D. NADPH
The figure below shows the concentration of glucose for a 24-hour period on both the process of photosynthesis (blue) and cellular respiration (red dashed lines). What explains the increase of respiration rate during the day? a. Enzymes are active during the day. b. Glucose production has increased due to photosynthesis. c. More energy is required to transport water and phloem sap and to dissipate heat. d. All of the above.
When oxygen gas is released as a result of photosynthesis, it is a direct byproduct of what process? a. splitting of water molecules b. the electron transfer system in the photosystems c. chemiosmosis d. reducing of NADP+