Question: Secondary cell wall of sclerenchyma cells is impregnated with_________________?

• 1. Cellulose.
• 2. Peptidoglycan and murein.
• 3. Lignin.
• 4. Pectin.

Question: Which of the follwing is a childhood disease resulting from nutritive Ca2+ deficiency?

• 1. Hypocalcaemia Tatanic spasms.
• 2. Osteomalacis.
• 3. Rickets.
• 4. Tetany

Question: Among the followings which is the most longest supportive cell?

• 1. Tracheids
• 2. Sclereids
• 3. Trachea
• 4. Collenchyma cells

Question: Which of the following statement about osteoporosis is incorrect.

• 1. It results from estrogen deficiency.
• 2. Bone eating process takes over bone formation process.
• 3. There is reduction of bone mass and change in chemical composition of the matrix
• 4. It is common in old age.

Question: An increrase in plant girth due to activity of _____________ is called secondary growth?

• 1. Cork cambium
• 2. Pith.
• 3. Vascular cambium.
• 4. Both a and c

Question: Which of the following statements about fractures in old age is incorrect?

• 1. They are more common than in adult age.
• 2. Occur as a result of bone being thin and weak.
• 3. Due to good blood supply it results in quick healing.
• 4. It involves osteoblasts and osteocytes.

Question: If two ends of fractured bone are opened and kept united via screws and wires drilled in bone substance. This step in fracture repair is called___________?

• 1. Open reduction.
• 2. Closed Fixation.
• 3. Open fixation.
• 4. Immobilization

Question: Vascular Cambium initially appears as actively dividing cells between_________________?

• 1. Primary Xylem and secondary xylem.
• 2. Primary xylem and secondary phloem.
• 3. Primary xylem and primary phloem
• 4. Secondary xylem and secondary phloem.

Question: A fracture hematoma has____________?

• 1. Healing properties.
• 2. Destructive properties.
• 3. Neutralizing properties.
• 4. Dead cells

Question: Sperms of liverworts, mosses, ferns move towards archegonia, in response to uncleic acid released by the ovum. This is an example of ____________?

• 1. Chemotropic movement
• 2. Chemotactic movement
• 3. Chemosastic movement
• 4. Haptonastic movement