What percentage of the leaf surface does stomata cover?
Correct answer: C. 1-2 %
- A. 10 %
- B. 50 %
- C. 1-2 %
- D. 0.3 to 0.4 %
Explanation
Option C is correct since stomata are the microscopic pores on leaf surfaces that facilitate gas exchange with the atmosphere, namely, CO2, O2, and H2O, and cover 1-2 % of the leaf surface.
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Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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