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