Question

Fill in the blanks:
1. All living organisms require ......................... to perform life functions.
2. ......................... is breaking down of food within the cells to release energy.
3. The first phase of respiration is known as ......................... .
4. The first of respiration is known as ......................... .
5. Fermentation occurs in the ......................... of oxygen.

Answer 1

1. All living organisms require oxygen to perform life functions.
2. Cellular respiration is breaking down of food within the cells to release energy.
3. The first phase of respiration is known as breathing.
4. Carbon dioxide turns lime water milky.
5. Fermentation occurs in the absence of oxygen.