plant responses

Question 1

name a suitable plant tissue you used

Answer 1

radish seeds

Question 2

describe how you measured the effect of IAA on plant tissue

Answer 2

using graph paper to measure the growth of roots and shoots

Question 3

explain tropism

Answer 3

change in the growth of a plant in response to a stimulus

Question 4

name two examples tropisms in plants

Answer 4

phototropism
geotropism

Question 5

describe in detail the mechanism of any one plant tropism

Answer 5

once the sunlight shines o the shoot at an angle, the IAA molecules move to the far side and induce the elongation of cells on that side
cell elongation results in the bending of the shoot toward the light

Question 6

give two uses of commercial plant growth regulators

Answer 6

rooting powders
weed killer

Question 7

name one anatomical and one chemical way plants can protect themselves

Answer 7

anatomical - thorns
chemical - foul tasting chemicals

Question 8

where precisely in plants are auxins produced

Answer 8

shoot, root tips

Question 9

what is an auxin

Answer 9

a plant growth regulator