PHOTOSYNTHESISS EXAM QUESTIONS

Question 1

In thet experiment, cells were supplied with radioactively labelleld carbon dioxide. explain why thte cells used were radioactively labelled (1)

Answer 1

used in photosythesis so can detect products

Question 2

explain what caused the amount of radioactively labeelled glucose to decrease when the light was turned off (1)

Answer 2

used in respiration

Question 3

describe and explain the relationship between light absorption and the rate of photosynthesis for the wavelengths of light between 410 nm and 500nm (2)

Answer 3

as light intensity increases, the rate of photosynthesis increases
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