211.DNA structure was first
described by
A. Pasteur
B. Robert Koch
C. Watson and Crick
D. Carlous Linnaues
212.Pollination is best
defined as
A. germination of pollen
grains
B. transfer of pollen from
anther to stigma
C. formation of pollen
grains
D. none of these
213.Movement of cell against
concentration gradient is called
A. active transport
B. osmosis
C. diffusion
D. both b and c
214.One of the following is
not a function of bones
A. support
B. production of blood cells
C. protein synthesis
D. muscle attachment
215.Plants absorb most part
of water needed by them through their
A. stem
B. root hairs
C. leaf
D. bark
216.Highly intelligent
mammals are
A. rat
B. bat
C. dolphin
D. elephant
217.Process of cell division
take place by
A. mitosis
B. fertilization
C. reproduction
D. none of these
218.Prokaryotic cell lack
A. nucleolus
B. nuclear membrane
C. both a and b
D. none of these
219.Pulses are a good source
of
A. proteins
B. carbohydrates
C. vitamins
D. minerals
220.Plants that grow in dry
habitat are called
A. hydrophytes
B. xerophytes
C. shrubs
D. herbs
ANSWERS:
211.A
212.C
213.B
214.C
215.A
216.C
217.A
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