Question

All cells use oxygen to produce energy.
a. True
b. False

Answer 1

Hint There are different type of cells present, it may be aerobic, the cells which require oxygen for producing the energy and for their survival, whereas the other one is called anaerobic, which do not require oxygen for the survival and producing the energy.

Complete answer:
The correct answer for this question is the second option that is (b) false, as in this question it is asked that, whether all cells need oxygen for producing the energy, this is wrong, all cells do not require oxygen for producing energy, as because, cells are widely classified into two that is aerobic and anaerobic cells, if the cell is aerobic then it will require oxygen for producing energy and for its survival also, but if the cell is anaerobic then the cell does not require oxygen for its survival and for producing energy.

In the case of the anaerobic cell, they acquire energy from the process of metabolism in the absence of energy. For example, yeast is the cells which do not require oxygen for producing energy, they simply convert the sugar into alcohol and release energy.

Due to this ability, yeast is widely used in industries to form alcohol. So the answer to this question is that all cells do not require oxygen to produce energy as they have the other option like the anaerobic respiration.

Note:
- Aerobic cells do require oxygen for doing their essential metabolic pathways whereas the anaerobic cells do not require oxygen to do this kind of process. Cellular respiration is always carried out by the help of mitochondria in every living cell in the body.
- Oxygen is required to break down the complex food molecules into simpler substances. During this process takes place, the energy is released which is mainly utilized for doing the entire cellular and the other functions.