Assertion (A): Human red blood cells are circular and biconcave.

Reason (R): This shape prevents the easy passage of these cells through blood capillaries.

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): Iodine solution makes the nucleus more distinct.

Reason (R): Nucleus contains starch which becomes blue-black upon absorbing the iodine solution.

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): Cell membrane is freely permeable.

Reason (R): Cell membrane permits free movement of the solutions across the membrane when two solutions of different tonicity are separated through it.

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): Scattered Golgi body in animal cells are called as 'dictyosomes'.

Reason (R): Plant cells have dictyosomes because the entire central space is occupied by a large vacuole.

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.