Question

Practice Question 11
1 Which gas present in air is essential for respiration? What is its role?
(Writing tip: Start your answer with the sentence stem!
gas is essent
16 to...)
2 Do you respire when you sleep? Explain,
State whether the following statements are true or false,
(a) Yeast is used to make wine because it produces alcohol aerobically.
(b) Cells in muscles produce lactic acid when they respire anaerobically,
(0) Water is required for anaerobic respiration,
(d) in the absence of oxygen, the by-products of respiration are carb
energy. In the presence of oxygen, the by-products are carbon dioxid
le) Plants do not respire,
Would any living organism be able to perform respirati​

Answer 1

Answer:

gas essentially fo respiration is oxygen

hope it helps thank u