• Biology - Section 1
31. 

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

32. 

Potato is a modified form (outgrowth) of

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

33. 

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

34. 

Prothrombin which helps in clotting of blood is released by

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

35. 

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

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