Life Span of Different Cells

Q.

What is the lifespan of RBCs?

1. 120

2. 240

3. As long as the organism lives

4. RBCs never die

Q.

Which of the following cells last a lifetime and cannot be replaced once dead?

1. Cells of the eye lens

2. Muscle cells

3. All of the above

4. Nerve cells

Q.

Which cells are formed at the embryonic stage and once dead cannot be replaced?

1. Brain

2. Nerve

3. Red blood cells

4. Muscle cells

Q. What is the normal life span of RBCs of human beings?

Q.

Which of the following fact about the cells in our body is false?

1. Skin cells are replaced every two weeks

2. Epithelial cells of the gut last for only 5 years

3. Liver cells are replaced every 300-500 days

4. Bone cells are replaced every ten years in adults

Q. The life-span of RBC is
(a) one month
(b) 100 days
(c) 120 days
(d) 100 hours