C3 plants means:

Related Mcqs:

1. The non-green plants are as important as the green plants because they:

   A. Cause human disease
   B. Cause diseases of other plants
   C. Are useful in several industries
   D. Bring about decomposition of dead animals and plant remains

2. Those chemicals which are produced by plants and affect other plants are broadly called:

   A. Depresants
   B. Allomones
   C. Allelochemics
   D. Kairomones

3. Among the plants listed, point out one that does not fit into ecological group represented by the other plants:

   A. Acacia
   B. Aloe
   C. Euphorbia
   D. Rhizophora

4. Among the plants listed, point out one that does not fit into biological group represented by other plants

   A. Euphorbia
   B. Acacia
   C. Vallisneria
   D. Aloe

5. C4 Plants means:

   A. A group of plants which include maize and sorghum
   B. The process of carbon fixation usually found in tropical plants with high growth rates
   C. Both (a) & (b)
   D. None of these

6. Hydrophytes (Aquatic Plants) means:

   A. A reduction of the protective, conducting and supporting tissues
   B. Absences of palisade tissue
   C. Both (a) & (b)
   D. None of these

7. Hygrophytes (Moisture loving plants) means:

   A. The pants are usually stunted in growth
   B. Roots and stem are poorly developed
   C. Leaves are large and tend to avoid water less lam transpiration
   D. All of the above

8. Green manuring plants are:

   A. Egyptian clover (barseem)Trifolium alexandrnum
   B. Dhaincha (jayannti) Sesbania aculeata
   C. Cowpea (lobia) Vigna sinensis
   D. All of the above

9. Plants growing near sea shore will usually have xerophytic characters, like thick leaves, because:

   A. There is plenty of water in the soil
   B. There is too high a concentration of salts for the plants to absorb sufficient water from the soil
   C. Light available to plant is not sufficient
   D. The soil is muddy

10. The plants growing on saline soils are called:

    A. Heliophytes
    B. Xerophytes
    C. Halophytes
    D. Hydrophytes