Biology GK Questions Quiz-57

1121.The best example of Polyembryony is (1) Cocoa  (2) Capsicum (3) Citrus  (4) Cycas Answer: 1121.(3) In citrus fruits such as oranges, the nuclear cells that surround the embryo start dividing and protrude into the embryo sac. These develop into embryos; thus resulting in the presence of more than one embryo inside each ovule. This condition is known as polyembryony. 1122.A Parenchyma cell which stores ergastic substance is known as (1) Phragmoblast (2) Idioblast (3) Conidioplast (4) Chloroplast Answer: 1122.(2) Parenchyma cells containing ergastic substances are called idioblasts. Tannin cells, cells filled with raphides, etc. constitute idioblast. An idioblast is an isolated plant cell that differs from neighboring tissues. It carries out storage of reserves. 1123.Green manure is obtained from (1) Domestic vegetable waste (2) Oil seed husk cakes (3) Fresh animal excreta (4) Decomposing green legume plants Answer: 1123.(4) Green undecomposed material used as manure is called green manure. It is obtai…