1921. Maize grain is ?
A. A seed *
B. An embryo
C. An ovule
D. A fruit
1922. For which part of the plant is turmeric obtained ?
A. Root
B. Fruit
C. Seed
D. Stem *
1923. Banana fruit contains mainly :
A. Glucose *
B. Starch
C. Fat
D. Proteins
1924. In making the saffron spice, which one of the following parts of the plant is used ?
A. Leaf
B. Petal
C. Sepal
D. Stigma *
1925. The role of chlorophyll in photosysnthesis is :
A. Absorption of water
B. Absorption of ligh *
C. Absorption of oxygen
D. None of these
1926. Herbicides are chemicals which control :
A. Fungi
B. Weeds *
C. Nematodes
D. Insects
1927. In a food chain, the solar energy utilized by plants is only:
A. 0.1 Percent *
B. 10 Percent
C. 1 Percent
D. 0.01 percent
1928. Who are the main producers in an ecosystem ?
A. Green plants *
B. Animals
C. Fungi and bacteria
D. Sometimes all the above
1929. Movements due to light are shown by :
A. Flowering plants *
B. Lower plants
C. All land plants
D. All the plants
1930. Vacuoles are bound by a definite membrane in plant cell called :
A. Plasma membrane
B. Tonoplast *
C. Cell wall
D. None of these