Responding To Environment (Plants)

Question 1

What are Auxins?

Answer 1

° A plant Hormone that promotes growth

Question 2

What are the functions of Auxins?

Answer 2

° Promote bending in plants as Tropisim
° Promote Cell division/enlargement
° Promote root development
° Responsible for Apical Dominace

Question 3

What are the functions of Gibberellins?

Answer 3

° Bring Elongation of the internodes of stems
° Stimulate root growth
° Promote development of Flowers
° Helps germination of seeds
° Increases Fruit size

Question 4

What are the functions of Abscisic Acid?

Answer 4

° Promotes Ageing of Leaves
° Helps during water shortage
° Induces Flowering in some plants

Question 5

What is Phototropism?

Answer 5

° The growth of a plant in response to the stimulus of light.

Question 6

What is Geotropism?

Answer 6

° The Growth movement of plant organs (Roots) in response to the stimulus of Gravity.

Question 7

Where are Auxins found?

Answer 7

° They are produced at the tip of the stem of the plant.