Q1. Cork is obtained from-
(a) Xylem
(b) Phloem
(c) Cork cambium
(d) Vascular cambium
Q2. Which one is semipermeable-?
(a) Plasmalemma
(b) Cell Wall
(c) Endoplasmic Reticulum
(d) Golgi body
Q3. Hydrophytes float on the water surface due to presence of-
(a) Collenchyma
(b) Sclerenchyma
(c) Aerenchyma
(d) Mesenchyme
Q4. A cell placed in strong salt solution will shrink because-
(a) Cytoplasm will decompose
(b) Mineral salt will break the cell wall
(c) Saltwater enters the cell
(d) Water comes out by exosmosis
Q5. Osmosis is defined as-
(a) Diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
(b) Flow of solute from a semipermeable membrane
(c) Flow of water without a membrane
(d) None of the above
Q6. Trunk of tree increases in girth due to cell division in-
(a) Vascular tissue
(b) Meristematic tissue
(c) Cortex
(d) Pith
Q7. Raisins placed in water swell up due to-
(a) Plasmolysis
(b) Adsorption
(c) Diffusion
(d) Endosmosis
Q8. Excessive supply of chemical fertilizer often causes death of crop plant due to-
(a) Exosmosis
(b) Endosmosis
(c) Imbibition
(d) Turgidity
Q9. In plant, water is transported through-
(a) Cambium
(b) Phloem
(c) Xylem
(d) Epidermis
Q10. Water available in soil for the root of Plant is-
(a) Capillary Water
(b) Gravitational Water
(c) Hygroscopic Water
(d) None of these
Answers
S1. Ans.(c)
S2. Ans.(a)
S3. Ans.(c)
S4. Ans.(d)
S5. Ans.(a)
S6. Ans.(b)
S7. Ans.(d)
S8. Ans.(a)
S9. Ans.(c)
S10. Ans.(a)
