Question

I. Choose the correct options: 1. Select the incorrect statement out of the following. (a) Leaves are the food factories of plants. (b) Water and minerals are absorbed by the roots from the soil and transported to the leaves. (c) Raw materials required for photosynthesis are carbohydrate and oxygen. (d) Chlorophyll pigment of leaves helps to capture the energy of sunlight. 2. Some organisms secrete digestive juices over the decaying matter and absorb nutrient from it. This is called as _______________ mode of nutrition. (a) Saprophytic (b) parasitic (c) symbiotic (d) autotrophic 3. Which part of the plants gets carbon dioxide from air in photosynthesis. a) Root hair (b) Stomata (c) leaf veins (d) sepals. 4. Cuscuta is an example of: (a) autotroph (b) Parasite (c) saprophyte (d) Host 5. The plant which traps and feeds on insects is: (a) Cuscuta plant (b) China rose (c) Pitcher plant (d) Rose plant. 6. Which of the following show symbiosis? (a) Alga and fungus (b) Alga and fish (c) Rhizobium and virus (d) Rhizobium and money plant. 7. Which of the following options contain leguminous crops only? (a) rice, wheat and maize. (b) Wheat , rice and peas (c) peas , beans and maize (d) Peas , beans and gram. 8. Symbiotic relationship is one , in which (a) Organisms feed on dead and decaying organic matter (b) Organisms trap and feed on insects. (c) Two organisms live together and get benefited from each other . (d) One organism grows as parasite on the body of other. 9. While moving around in kitchen ,Ram observed whitish ,greyish ,cotton like threads on the slice of bread. The whitish or greyish cotton like threads found on the surface of bread slice are ___(i). They obtain nutrition by ___(ii). (a) (i) –fungi, (ii) – feeding on dead and decaying organic matter. (b) (i) –algae, (ii) – Feeding on dead and decaying organic matter. (c) (i) – fungi , (ii) –manufacturing their own food. (d) (i) – algae , (ii) manufacturing their own food. 10. Which of the following are heterotrophs? (a) mimosa (b) mushroom (c) mango (d)mangrove 11. Which of the following plant is an example of autotroph ? (a) mushroom (b) yeast (c) bread mould (d) money plant. 12. Lichens is an association between (a) an alga and a fungus (b) an alga and a tree (c) a fungus and a tree (d) bacteria and legume plant. 13. Which of the following options contains end products as photosynthesis ? (a) glucose and oxygen (b) carbon dioxide and water (c) glucose and carbon dioxide (d) carbon dioxide and oxygen 14. Replenishment in the soil can be done by (a) adding manure (b) adding fertilizer (c) Growing legume crops (d) all of these. 15. The mineral needed by plants to make proteins is: (a) Phosphorous (b) iodine (c) nitrogen (d) calcium

Answer 1

Answer:

1.-d

2.-d

3.-b

4.-d

5.-c

6.-b

7.-d

8.-C

10.-b

11.-d

12.-a

13.-b

14.-d

15.-c

Answer 2

Answer:

Explanation:

1-d