Chapter 5: The Fundamental Unit of Life- Exercise- 65

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Chapter 5: The Fundamental Unit of Life

Class: IX

Exercise number 65

Question 1

Can you name the two organelles we have studied that contain their own genetic material?

Answer 1

Mitochondria and plastids

Question 2

If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?

Answer 2

Cell is the building block and smallest unit of life, which is capable of all living functions. If the any of the cell organization is destroyed due to some physical or chemical influence, then the ability of the cell to perform major living functions such as respiration, nutrition, excretion, etc. will be affected.

Question 3

Why are lysosomes known as suicide bags?

Answer 3

Lysosomes are known as suicide bags because sometimes they release the powerful digestive enzymes them within the cell cause self- destruction of its cells.

Question 4

Where are proteins synthesized inside the cell?

Answer 4

Protein synthesis is takes place inside the ribosomes.