161. Fresh water ecosystem covers
(A) 2%
(B) 1%
(C) 3%
(D) 5%

162. Foul smell in lake is produced by
(A) algae
(B) bacteria
(C) fungi
(D) all of these

163. Starch is richly present in
(A) onion
(B) apple
(C) cereals
(D) tomato

164. Plants having foreign DNA are known as
(A) genetic plants
(B) recombinant plants
(C) cultured plants
(D) transgenic plants

 

165. Which of the following kinds of atom do not occur in carbohydrates
(A) carbon
(B) hydrogen
(C) nitrogen
(D) oxygen

166. The basic framework of all types of membranes are
(A) lipoproteins
(B) glycoproteins
(C) proteoglycans
(D) nucleoproteins

 

167. Single membrane bounded organelle is
(A) nucleus
(B) lysosome
(C) ribosome
(D) none of these

168. Irregular grape like cluster of bacilli is called
(A) diplo bacilli
(B) strepto bacilli
(C) staphylo bacilli
(D) none of these

169. It is generally accepted that plants arose from ancestral
(A) green algae
(B) fungi
(C) bacteria
(D) all of these

170.  Main energy reserves in the case of green algae are
(A) glycogen
(B) sucrose
(C) glucose
(D) starch

NOTE
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