PG TRB Botany Online Test - 4

Question: 16

During fertilization this part of the sperm is useful to penetrate the ovum

(A) Manchette 

(B) Centriole

(C) Acrosome

(D) Head

Question: 17

The metallic ion found in the chlorophyll (chloroplast) is

(A) Iron

(B) Zinc

(C) Cobalt

(D) Magnesium

Question: 18

Which one of the following bacteria helps in improving the soil fertility?

(A) Clostridium

(B) Salmonella

(C) Staphylococcus

(D) Rhizobium

Question: 19

The largest lymphatic organ of the body is

(A) spleen

(B) liver

(C) pancreas

(D) duodenum

Question: 20

The plant cells are surrounded rigid by

(A) plasma membrane

(B) cell membrane

(C) plasmalemma

(D) cell wall