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