Biology MCQs – Page 19

✅ C. Auxins

Option A: Gibberellins Option B: Abscisins Option C: Auxins Option D: Cytokinins Correct Answer : Auxins Read more

✅ C. They contain O2 storing molecules called hemoglobin.

Option A: They are multinucleate Option B: They are 10 100 ?m in diameter & surrounded by sarcolemma Option C: They contain O2 storing molecules called hemoglobin. Option D: Their cytoplasm contains high concentration of carbohydrates Correct Answer : They contain O2 storing molecules called hemoglobin. Read more

✅ B. Growth stimulator

Option A: Growth inhibitor Option B: Growth stimulator Option C: Growth hormone Option D: None of these Correct Answer : Growth stimulator 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

✅ C. Due to good blood supply it results in quick healing.

Option A: They are more common than in adult ag Option B: Occur as a result of bone being thin and weak. Option C: Due to good blood supply it results in quick healing. Option D: It involves osteoblasts and osteocytes. Correct Answer : Due to good blood supply it results in quick healing. Read more

✅ A. Open reduction.

Option A: Open reduction. Option B: Closed Fixation. Option C: Open fixation. Option D: Immobilization Correct Answer : Open reduction. Read more

✅ C. Primary xylem and primary phloem

Option A: Primary Xylem and secondary xylem. Option B: Primary xylem and secondary phloem. Option C: Primary xylem and primary phloem Option D: Secondary xylem and secondary phloem. Correct Answer : Primary xylem and primary phloem 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

✅ A. Turgor movement

Option A: Turgor movement Option B: Nastic movement Option C: Tropic movements. Option D: Growth movement Correct Answer : Turgor movement Read more

✅ A. A smooth muscle

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

✅ C. Rickets.

Option A: Hypocalcaemia Tatanic spasms. Option B: Osteomalacis. Option C: Rickets. Option D: Tetany Correct Answer : Rickets. Read more

✅ A. Tracheids

Option A: Tracheids Option B: Sclereids Option C: Trachea Option D: Collenchyma cells Correct Answer : Tracheids 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

✅ D. Both a and c

Option A: Cork cambium Option B: Pith. Option C: Vascular cambium. Option D: Both a and c Correct Answer : Both a and c Read more

✅ B. Ligaments.

Option A: Synovial membran Option B: Ligaments. Option C: Muscles. Option D: Tendon Correct Answer : Ligaments. Read more