Question

Enzyme controlled stepped process inside the mitochondria where glucose is oxidized into energy rich molecule ATP along with high energy molecules is

• A. External respiration
• B. Internal respiration
• C. Osmosis
• D. Cell respiration

Answer 1

The correct option is D Cell respiration

Cellular respiration includes all metabolic pathways, where carbohydrates and other metabolites are broken down to build up ATP. Thus, option D is correct.
The processes of breathing or "respiration" are often described in two parts: external respiration and internal respiration. External respiration is the processes by which external air is drawn into the body in order to supply the lungs with oxygen, and air is expelled from the lungs in order to remove carbon dioxide from the body. The processes of internal respiration concerned the exchange of gases in the lungs with those in the tissues. Thus, option A and B are wrong.
Osmosis is the spontaneous net movement of solvent molecules through a partially permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. Thus, option C is wrong.