Photosynthesis: A process used by plants and other organisms to convert light energy into chemical energy

This is an MCQ-based quiz for GRE on the topic of Photosynthesis.

This includes Absorption of light, Electron Transfer, Generation of ATP, and Carbon Fixation.

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CAM (crassulacean acid metabolism) plants undergo __________ photosynthesis and keep their stomata __________ during the day.

reverse . . . closed C3 . . . open C4 . . . closed C3 . . . closed C4 . . . open

Plants such as corn are capable of C4 respiration. In order to undergo C4 respiration, which additional enzyme must the plant utilize?

PEP carboxylase Kinase RUBISCO Alkaline phosphatase Phosphofructokinase

In the Calvin cycle, carbon is reduced to ultimately form glucose. Where does this carbon come from?

Sun Soil Air Water Mineralized rock

Where in the chloroplast is the pH the lowest?

The stroma Matrix The thylakoid lumen The pH is the same in both the thylakoid lumen and the stroma Cytosol

Which of the following are photosynthetic outputs? I. C6H12O6 II. O2 III. H2O IV. Sugar

II, and III I, II, and III I, and II I, II, and IV II, III, and IV

Chlorophyll absorbs many different wavelengths of visible light, but __________ light is absorbed the least.

Red Green Ultraviolet Blue Yellow

Plants undergo which of the following processes: I. Photosynthesis II. Cellular respiration III. Lactic acid metabolism

II only I only I, II, and III I and II I and III

Plants are known as __________ because they derive the chemical energy necessary for life from the sun.

Lithotrophs Heterotrophs Detritivores Autotrophs Auxotrophs

Photosynthesis is a __________ process, while cellular respiration is a __________ process.

catabolic . . . catabolic anabolic . . . catabolic anabolic . . . anabolic spontaneous . . . nonspontaneous catabolic . . . anabolic

Which of the following is not part of the Calvin cycle?

oxidation of NADPH addition of light Regeneration of RuBP ATP production Fixation of carbon dioxide

Quiz/Test Summary

Title: Photosynthesis: A process used by plants and other organisms to convert light energy into chemical energy

Questions: 10

Contributed by:

Diego Wed, Apr 27, 2022 03:17 PM UTC

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