10th Class Biology 2nd Quarter Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. What is the function of a crosome?

   1. Guides the sperm towards egg cell

   2. Releases enzymes that help sperm penetrate the egg's outer layers

   3. Activates the egg for fertilization

   4. Helps in the fusion of sperm and egg nuclei

2. In central Nervous system (CNS) myelinated axons form:

   1. Grey malter

   2. White matter

   3. Neuroglia

   4. Dendrites

3. What is the major dietry cause of kidney stones?

   1. Eating too much fruit

   2. Eating green vegetables and dairy products

   3. Drinking too much water

   4. Lack of salt in food

4. Following are the parts of male reproductive system except:

   1. Testes

   2. Penis

   3. Epididymis

   4. Cervix

5. Inside cranium, brain is covered by three layers of membranes, collectively called

   1. Dendrites

   2. Meninges

   3. Ventricles

   4. Cerebrum

6. In peritoneal dialysis, what acts as the filtering membrane?

   1. Dialysis machine

   2. Renal cortex

   3. Peritoneal membrane

   4. Renal tubules

7. Follicles in the ovary contain which type of cells?

   1. Sperm cells

   2.  Egg cells 

   3. Blood cells

   4. Muscle cells 

8. Schwann cells are the supporting cells for neurons. They make:

   1. Cell body

   2. Axon

   3. Myelin sheath

   4. Dendrites

9. The primary substance reabsorbed in the descending limb of the loop of Henle:

   1. Proteins

   2. Urea

   3. Some water

   4. Salts

10. More than how many sperms are produced by a male in a single day?

    1. 10 million

    2. 50 million

    3. 100 million

    4. 500 million 

11. How many neurons are present in an adult human brain?

    1. 10 billion

    2. 100 billion

    3. 1 trillion

    4. 100 million

12. The funnel-shaped cavity where urine collects before entering the ureter is the:

    1. Renal cortex

    2. Bowman's capsule

    3. Renal pelvis

    4. Glomerulus