Water Transport

Question 1

root hairs:

Answer 1

increase the surface area for absorption

Question 2

How does xylem sap flow upwards and overcome the force of gravity?

Answer 2

1. Cohesion
2. Adhesion
3. Root Pressure
4. Transpiration

Question 3

cohesion:

Answer 3

the tendacy of water molecules to stick together

Question 4

adhesion:

Answer 4

the tendacy of water molecules to stick to certain surfaces

Question 5

root pressure:

Answer 5

turgor pressure inside the root xylem

Question 6

tropism:

Answer 6

a plant’s response to a stimulus

Question 7

3 types of tropism’s:

Answer 7

1. Phototropism
2. Gravitropism
3. Nastic Response

Question 8

phototropism:

Answer 8

the growth of a plant toward a light source (it maximizes light absorption for photosynthesis)

Question 9

auxin:

Answer 9

a chemical produced in plant tips that stimulates growth

Question 10

gravitropism:

Answer 10

is a plant’s growth response to the force of gravity

Question 11

“stems” show…

Answer 11

negative gravitropism (grow against gravity)

Question 12

“roots” show…

Answer 12

positive gravitropism (grow down with gravity)

Question 13

nastic response:

Answer 13

plant’s reaction to touch (ex. venus flytrap)