23.5 Transport in Plants

The major forces that transport water in a plant are:

• Transpiration pull and root pressure

• Photosynthesis and respiration

• Diffusion and osmosis only

• Capillary action and gravity

What drives the movement of fluid through phloem tissue in a plant?

• Gravity

• Transpiration pull

• Pressure flow mechanism

• Capillary action

Fill in the blank: The major force in water transport is provided by the evaporation of water from leaves during ________.

• transpiration

• respiration

• photosynthesis

• germination

Fill in the blank: The pressure created by water entering the tissues of a root can push water upward in a plant stem. This is known as ________.

• root pressure

• capillary action

• transpiration pull

• osmosis

Fill in the blank: The hypothesis that explains the movement of fluid through phloem tissue is called the ________.

• pressure-flow hypothesis

• cohesion-tension theory

• transpiration-pull hypothesis

• root pressure theory

Fill in the blank: The attraction between water molecules and the walls of a plant's vessels is called ________.

• adhesion

• cohesion

• diffusion

• osmosis

Tags

NGSS.MS-ESS2-4

Fill in the blank: The tendency of water to move upward through narrow tubes against gravity is called ________ action.

• capillary

• diffusion

• osmosis

• adhesion

What does the chain of circus clowns represent in the process of water transport in plants?

• Cohesion of water molecules

• Transpiration pull

• Root pressure

• Capillary action

Tags

NGSS.MS-LS2-3

In which stalk did the colored water rise the most? The least?

• Stalk A rose the most, Stalk B the least

• Stalk B rose the most, Stalk A the least

• Stalk C rose the most, Stalk A the least

• Stalk B rose the most, Stalk C the least

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Analyze and Conclude: 2. Infer What effect did the petroleum jelly have on transpiration? What part of the leaf did the petroleum jelly affect?

• It reduced transpiration by blocking the stomata on the leaf surface.

• It increased transpiration by opening the stomata.

• It had no effect on transpiration or the leaf.

• It only affected the veins of the leaf.

Tags

NGSS.MS-LS2-3