Bio Chapter 7: Photosynthesis: Using Light to Make Food

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Which of the following are produced in the thylakoids and consumed by reactions in the stroma of a chloroplast?
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Terms in this set (20)
Which of the following are produced in the thylakoids and consumed by reactions in the stroma of a chloroplast?
ATP and NADPH
Of the following metabolic processes, which one is common to photosynthesis and cellular respiration?
reactions that store energy by pumping H+ across membranes
You could distinguish a granum from a mitochondrial membrane because the granum, but not the mitochondrial membrane, would __________.
have photosynthetic pigments
Phenol red is a chemical that turns red when carbon dioxide, CO2, is absent and yellow when CO2is present. A small, green plant seedling is placed in phenol red in the dark. Which one of the following is most likely to occur?
If the solution is red to begin with, it will turn yellow because respiration is occurring.
The photo- part of photosynthesis refers to __________, whereas -synthesis refers to __________.
the light reactions that occur in the thylakoids ... the incorporation of carbon into carbohydrates
The wavelengths of light absorbed by pigments in the granum of a chloroplast are mainly in which range?
blue-violet and red-orange
Which of the following is not a photoautotroph?
gut bacteria
The synthesis of glucose through photosynthesis requires energy in the form of excited electrons. The source of the energy to excite the electrons is __________.
light
The __________ of photosynthesis performs a task similar to that of the __________ of cellular respiration.
NADPH ... NADH
Why is NADP+ needed in photosynthesis?
It acquires electrons and carries them to the Calvin cycle.
Which of the following correctly matches each of the inputs to the Calvin cycle with its role in the cycle?carbon dioxide: carbon ... ATP: energy ... NADPH: high-energy electronsThe reactions of the Calvin cycle are not directly dependent on light, but they usually do not occur at night. Why?The Calvin cycle depends on products of the light reactions.The energy used to produce ATP in the light reactions of photosynthesis comes from __________.movement of H+ through a membraneA photon of which of the following carries the greatest amount of energy?X raysDuring photosynthesis, O2 is produced from __________ via a series of reactions associated with __________.H2O ... the water-splitting photosystemWhich of the following is an example of carbon fixation?the enzyme rubisco catalyzing the addition of CO2 to a five-carbon sugar in the Calvin cycleThe source of the oxygen produced by photosynthesis has been identified through experiments using radioactive tracers. The oxygen comes from __________.waterA plant is growing under bright lights in a sealed chamber. What will happen to the air in the chamber?The amount of oxygen will increase.A gardener is concerned that her greenhouse is getting too hot from too much sunlight and wants to shade her plants with colored plastic sheets. What color should she use to reduce overall light energy but still maximize plant growth?blueBurning biofuels releases CO2 into the atmosphere, contributing to global warming. However, this is at least partially offset by __________.the CO2 absorbed during photosynthesis as plants grow