Question 1
Carbon dioxide and oxygen are waste products of metabolism in a leaf. (a) Name the process in a leaf that produces carbon dioxide as a waste product. (b) Name the process that produces oxygen as a waste product. (c) State how these gases leave the leaf.
Show mark scheme for question 1
- (a) respiration (1)
- (b) photosynthesis (1)
- (c) (by diffusion) through the stomata (1) allow through stomata without diffusion