• Biology - Section 1

out of proteins, lipids and carbohydrates present in a cell membrane, what is true?

A. Lipids are maximum
B. Carbohydrates are minimum
C. Carbohydrates are maximum
D. All three are in equal proportion


Potato is a modified form (outgrowth) of

A. root
B. stem
C. fruit
D. leaf


Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?

A. Order
B. Subspecies
C. Class
D. Genus


Prothrombin which helps in clotting of blood is released by

A. lymphocytes
B. erythrocytes
C. monocytes
D. blood platelets


Most of the red, blue and purple colours of plants are due to a pigment called

A. anthocyanin
B. carotene
C. chlorophyll
D. xanthophylls