Cytokinin

Q.

The hormone responsible for apical dominance is

1. GA

2. IAA

3. Florigen

4. ABA

Q.

Cell division is initiated in plants by

1. Gibberellin

2. Cytokinin

3. Auxin

4. Abscisic acid

Q. Which of the following statements is /are correct about cytokinin?.
Statement 1: Cytokinin is a hormone whose main function is the induction of cell division and delay in senescence
Statement 2: Cytokinin is the process of cell division
Statement 3: Cytokinin helps in breaking seed dormancy.
Statement 4: Cytokinin helps to overcome apical dominance.

1. Only statement 1 is correct
2. Statements 3 and 4 are correct
3. Statements 1 and 4 are correct
4. Statements 2 and 3 are correct

Q. Which of the following type of phytohormones resembles nucleic acids in structure?

1. Cytokinins
2. Auxins
3. Gibberellins
4. ABA

Q.

difference between auxin and cytokinin

Q. Which of the following plant growth regulators should be used to delay senescence in plants?

1. Gibberellin and ethylene
2. Ethylene and cytokinin
3. Cytokinin and gibberellin
4. None of the above

Q. Coconut milk is a/an ___________

1. auxin
2. cytokinin
3. gibberellin
4. abscisic acid

Q.

Physiological effects of a phytohormone are given below

1. Cell division

2. Removal of apical dominance

3. Delay of senescence

4. Help in stomatal opening

Identify the phytohormone involved in the above processes

1. Auxins
2. Gibberellins
3. Cytokinins
4. Abscisic acid

Q. Richmond Lang effect is shown by:

1. Kinetin
2. Auxin
3. Gibberellin
4. Ethylene