Stomata cover only ______________ of leaf surface?
Correct answer: C. 1-2 %
- A. 0.03 - 0.04%
- B. 10%
- C. 1-2 %
- D. 50%
Explanation
Stomata occupy only a small fraction of the leaf surface, commonly estimated at about 1 to 2%, while still providing extensive openings for gas exchange. The likely distractor is 10%, which overestimates their area because stomata are numerous but individually very small.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
Practise Bioenergetics
1,378 free Bioenergetics MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Cellular Respiration questions
Which of the following pigment is Blue- green in colour?
Reduction in photosynthesis is of____________?
Thylakoids in chloroplasts are stacked into___________?
Molecular formula of chlorophyll 'a' molecule is___________?
Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis?
Which of the following statement about the head of a chlorophyll molecule is incorrect?