1161. Fern belongs to ____________.
A. Bryiophyta
B. Pteridophyta *
C. Anthophyta
D. None of these
1162. In which section of the plant does photosynthesis take place ?
A. Roots
B. Stem
C. Leaves *
D. Flowers
1163. Photosynthesis takes place faster in ____________.
A. Yellow light
B. White light *
C. Red light
D. Darkness
1164. Age of a tree can be determined by ____________.
A. Counting the number of rings in the stem *
B. Counting the number of leaves
C. Counting the number of branches
D. Measuring the size of the tree
1165. The green colour leaves are due to the presence of ____________.
A. Metallic ions
B. Haemoglobin
C. Iron
D. Chlorophyll *
1166. During the day time plants ___________.
A. Take in oxygen and give out carbon dioxide
B. Take in carbon dioxide and give out oxygen *
C. Take in nitrogen and give out oxygen
D. Take in carbon dioxide and give out nitrogen
1167. Plants receive their nutrients mainly from __________.
A. Chlorophyll
B. Atmosphere
C. Light
D. Soil *
1168. Potato is a modified form of __________.
A. Root
B. Stem *
C. Fuit
D. Leaf
1169. A plant cell is distinguished from an animal cell by the presence of ___________.
A. Nucleus *
B. Chloroplasts
C. Cell membrane
D. Cytosol
1170. A man with blood group A can receive blood from persons having blood groups _________.
A. A,O *
B. A,B,O
C. A,AB,B
D. A, B