Carotenoids are ……that are yellow, orange, red or brown pigments.
a) carbohydrates
b) proteins
c) lipids
d) nucleic acids
Carotenoids are of ……..types.
a) two
b) three
c) four
d) five
Explanation: carotene (orange, red) and Xanthophyll (yellow)
The human body breaks the beta-carotene, which is the orange pigment of carrots and form two molecules of vitamin………..
a) B
b) C
c) D
d) A
Why lipids produce more energy as compare to carbohydrates?
a) they have more OH groups
b) they have more C-H bonds
c) they have more NH2 groups
d) they have more C-O bonds
Which of the following hormones are lipids that regulate various processes inside the bodies of plants?
a) auxins
b) gibberellins
c) cytokines
d) all of these
Which of the following hormones are lipids that regulate various processes inside the bodies of animals?
a) aldosterone
b) estrogen and progesterone
c) testosterone
d) all of these
