Concanavalin A is:
1.  a pigment
2.  an alkaloid
3.  an essential oil
4.  a lectin

Cells in ${\mathrm{G}}_0$ phase:

1. terminate the cell cycle

2. exit the cell cycle

3. enter the cell cycle

4. suspend the cell cycle

The shorter and longer arms of submetacentric chromosome are referred to as:

The correct sequence of phases in cell cycle is:

Xylem translocates:

1. Water, mineral salts, some organic nitrogen and hormones

2. Water only

3. Water and mineral salts only

4. Water, minerals and some organic nitrogen only

What is the direction of movement of sugars in phloem?

1.  Bi-directional

2.  Non-multidirectional

3.  Upward

4.  Downward

Thiobacillus is a group of bacteria helpful in carrying out:

What is the site of perception of photoperiod necessary for induction of flowering in plants?

1.  Leaves

2.  Lateral buds

3.  Pulvinus

4.  Shoot apex

Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:
1. Phosphofructokinase
2. Aldolase
3. Hexokinase
4. Enolase

Respiratory Quotient (RQ) value of tripalmitin is:

1. 0.09

2. 0.9

3. 0.7

4. 0.007