Author: Sheeraz Ahmed – Page 117

✅ C. Tropomyosin gets removed from the binding sites of actin filaments.

Option A: Binding sites of actin get attached to the myosin hea Option B: Troponin uncovers the actin binding sites. Option C: Tropomyosin gets removed from the binding sites of actin filaments. Option D: Ca2+ goes back inside sarcoplasmic reticulum. Correct Answer : Tropomyosin gets removed from the binding sites of actin filaments. Read more

✅ B. CaCO3

Option A: CaPO4 Option B: CaCO3 Option C: CaSO4 Option D: SiO2 Correct Answer : CaCO3 Read more

✅ B. Negative phototropism and positive geotropism

Option A: Positive phototropism and negative geotropism Option B: Negative phototropism and positive geotropism Option C: Negative tactic movement and positive tropic movement Option D: Positive geotropism of stem and roots Correct Answer : Negative phototropism and positive geotropism Read more

✅ D. Dead cells

Option A: Healing properties. Option B: Destructive properties. Option C: Neutralizing properties. Option D: Dead cells Correct Answer : Dead cells Read more

✅ B. Chemotactic movement

Option A: Chemotropic movement Option B: Chemotactic movement Option C: Chemosastic movement Option D: Haptonastic movement Correct Answer : Chemotactic movement Read more

✅ A. Fibroblast and osteoblast.

Option A: Fibroblast and osteoblast. Option B: Osteoblast and osteoclast. Option C: Osteoclast and osteocyte Option D: Onteocyte and osteoblast Correct Answer : Fibroblast and osteoblast. Read more

✅ C. 2-3 months.

Option A: 2-3 weeks Option B: 3-4 weeks. Option C: 2-3 months. Option D: 3-4 months. Correct Answer : 2-3 months. Read more

✅ C. Pulvinus

Option A: Pith. Option B: Pit. Option C: Pulvinus Option D: Ecdysone Correct Answer : Pulvinus Read more

✅ A. A smooth muscle cell.

Option A: A smooth muscle cell. Option B: A cardiac muscle cell. Option C: A skeletal muscle cell. Option D: All of these Correct Answer : A smooth muscle cell. Read more

✅ C. There is reduction of bone mass and change in chemical composition of the matrix

Option A: It results from estrogen deficiency. Option B: Bone eating process takes over bone formation process. Option C: There is reduction of bone mass and change in chemical composition of the matrix Option D: It is common in old age. Correct Answer : There is reduction of bone mass and change in chemical composition of the matrix Read more