Assertion (A): Efferent arteriole is wider than the afferent arteriole.

Reason (R): The difference in the size of the diameter of these arterioles creates a high pressure known as hydrostatic pressure. This pressure helps in the process of ultrafiltration through the glomerulus.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): Haematuria is the condition in which the blood passes with urine due to some infection in the urinary tract, kidney stones or tumour.

Reason (R): An excessive number of RBCs and haemoglobin is produced in the bone marrow. So these are excreted out through the urine.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): The aggregates of the cell bodies or perikaryons of neurons form the synapse.

Reason (R): Ganglia are the structures from which the nerve fibres may arise or enter into, whereas the synapse connects two neurons with a small gap in between.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False
4. A is False and R is True

Assertion (A): The cerebellum is the largest portion of the brain.

Reason (R): Cerebellum is located just at the base of the cerebrum. It maintains body balance. Cerebrum is the seat of intelligence, consciousness and will power.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.