Tag: cytokinins

Quizzes (2) Questions (105)

Questions Related to cytokinins

Multiple choice biology chemical coordination in plants cytokinins plant hormones plants and animal hormones

Plant hormones used for inducing morphogenesis in plant tissue culture is

  1. Gibberellins

  2. Ethylene

  3. Cytokinins

  4. ABA
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Morphogenesis is the process of development of shape of an organism. Cytokinins which is present at the site where rapid cell division occurs like root apices, developing shoot buds it helps in plant growth and attaining its shape. So it will help the plant to maintain its shape in tissue culture.

So the correct option is 'Cytokinins'.

Multiple choice biology chemical coordination in plants cytokinins plant hormones plants and animal hormones

State whether the following statements are true or false.
The plant ageing process, senescence, is prevented by cytokinins.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cytokinin is a plant growth hormone that is basic in nature and is responsible for cell division. This results in cell elongation, growth, and development of plants, they work similar to auxins. Cytokinins are helpful in delaying and stopping the senescence of leaves thus resulting in the process of aging to stop by the mobilization of nutrients in the required part of the plant.

So, the correct statement is 'True'.

Multiple choice biology chemical coordination in plants cytokinins plant hormones plants and animal hormones

Cytokinins helps to produce all except

  1. New leaves

  2. Chloroplast in leaves

  3. Lateral short growth and adventitious shoot formation

  4. Rooting on cut stem
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Cytokinins are plant hormones that cause increased cell division by stimulating the process of mitosis. They help in the production of new leaves, formation of chloroplasts in leaves, lateral shoot growth and adventitious shoot formation. They do not have any role in root formation. So, the correct option is 'Rooting on the cut stem'.