Question

Give reasons for the following statements:-

i. Nucleus is an important part of the cell.

ii. Mitochondria is called powerhouse of the cell.​

Answer 1

Answer:

1. The nucleus has very important roles to play. As it contains genetic material, it coordinates cell activities like protein synthesis and cell division.

2. Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

Answer 2

Explanation:

I) NUCLEUS is like cpu used in computers. It contains genetic material.It contains chromosomes which has DNA which is the information source for making proteins.It is necessary for evolution. It is the decesion making body of the cell like a leader. It coordinates all metabolic activities of a cell.

2)Mitochondria is called as the semi autonomous organalle as it has its own proteins,dna,ribosomes etc.

It helps in making ATP molecules as it is used as an energy.Aerobic respiration takes place in mitochondria.