Biology
Photosynthesis in Plants
1,492 Questions
Photosynthesis is the biological process by which plants convert light energy into chemical energy. This page contains practice questions covering essential topics like chlorophyll, light reactions, and the pathways specific to plants. This material is crucial for medical entrance exams and academic assessments.
Chlorophyll and pigmentsLight reactionsCalvin cycleCAM plantsElectron transportPhotosynthesis factors
Photosynthesis in Plants Questions
A
Correct answer
Explanation
Like animals, plants require oxygen for aerobic respiration to break down glucose, which releases carbon dioxide as a byproduct.
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Photosynthesis
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Respiration
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Evaporation
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Acid Rain
A
Correct answer
Explanation
Photosynthesis is the process by which autotrophs capture atmospheric carbon dioxide and convert it into energy-rich organic molecules like glucose.
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Photosynthesis
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Evaporation
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Respiration
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Acid Rain
C
Correct answer
Explanation
Cellular respiration breaks down organic molecules to release energy, producing carbon dioxide as a byproduct, which is then released into the atmosphere.
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Photosynthesis and Respiration
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Precipitation and Condensation
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Erosion and Uplift
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Digestion and Perspiration
A
Correct answer
Explanation
Photosynthesis removes carbon from the atmosphere, and respiration returns it. These two processes are the primary drivers of the short-term biological carbon cycle.
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chloroplast
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mitochondria
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cytoplasm
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protoplasm
A
Correct answer
Explanation
Chloroplasts are the organelles in plant cells that contain chlorophyll and are the primary site where photosynthesis occurs.
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glucose
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breaking down other organisms
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light
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carbon dioxide
D
Correct answer
Explanation
Photoautotrophs use light as an energy source and carbon dioxide as their sole or principal carbon source. They fix inorganic carbon into organic molecules.
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Photography
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Photosynthesis
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Reproduction
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Adaptation
B
Correct answer
Explanation
Photosynthesis is the biological process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
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photoperiodism
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photosynthesis
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germination
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fertilization
A
Correct answer
Explanation
Photoperiodism is the physiological reaction of organisms to the length of day or night. Plants use this to time seasonal activities like flowering.
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Oxygen
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Nitrogen
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Carbon dioxide
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Sulphur
C
Correct answer
Explanation
During photosynthesis, plants take in carbon dioxide from the atmosphere and water from the soil to produce glucose and release oxygen as a byproduct.
B
Correct answer
Explanation
During photosynthesis, plants take in carbon dioxide and release oxygen. The statement is false because it describes the reverse process.
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carbon dioxide
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plasma
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oxygen
C
Correct answer
Explanation
Photosynthesis is the process by which plants convert light energy into chemical energy, releasing oxygen as a byproduct.
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take in carbon dioxide
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take in oxygen
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take in animals
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release carbon dioxide
A
Correct answer
Explanation
Plants require carbon dioxide as a reactant for photosynthesis to produce glucose.
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Photosythesis
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Eutrophication
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Respiration
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Transipiration
A
Correct answer
Explanation
Photosynthesis is the process by which plants synthesize glucose using sunlight, carbon dioxide, and water. It occurs primarily in chloroplasts of leaf cells.
A
Correct answer
Explanation
Leaves contain chlorophyll, a pigment that captures light energy from the sun to drive the process of photosynthesis.
B
Correct answer
Explanation
Plants primarily absorb carbon dioxide for photosynthesis, not oxygen. While they do exchange gases, the primary intake for food production is carbon dioxide.