Lipid molecules can store double amount of energy as compared to same amount of carbohydrate because of high number of_____.

1. 1. C-C bonds
   2. C-N bonds
   3. C-O bonds
   4. C-H bonds

Centrioles are composed of _____triplets of microtubules.

1. 1. 9
   2. 10
   3. 11
   4. 13

Enzyme present in the saliva is_____.

1. 1. lipase
   2. ptyalin
   3. trypsin
   4. invertase

Fermentation takes place in which component of a cell?

1. 1. Cytoplasm
   2. Nucleus
   3. Mitochondria
   4. All of these

Which are the four most abundant elements in living cells?

1. 1. carbon, sulfur, hydrogen, magnesium
   2. carbon, oxygen, nitrogen, sulfur
   3. carbon, oxygen, sulfur, phosphorus
   4. carbon, oxygen, hydrogen, nitrogen

Dolly, the sheep was a highly successful clone from a somatic cell, reported back in_____.

1. 1. 1996
   2. 1997
   3. 1998
   4. 1999

The function of chrosomes of carrying genetic information from cell generation to another is performed by _____.

1. 1. RNA
   2. Histones
   3. Calcium
   4. DNA

Which of the following promotes growth in plants?

1. 1. Calvin cycle
   2. Photorespiration
   3. Both of these
   4. All of these

In the root cells _____pathway becomes discontinuous in the endodermis due to the presence of casparian strip.

1. 1. Tonoplast
   2. Symplast
   3. Vacuolar
   4. Apoplast

In an annelids, the contraction of circular muscle results in_____.

1. 1. Thinning of body
   2. Lengthening of the body
   3. Shortening of the body
   4. Widening of body