Ch 9: Translocation & Transpiration

The xylem and phloem are known collectively as...

• Vascular tissue
• Epidermal tissue
• Ground tissue
• Mesophyll tissue

Translocation is the...

• Transport of water in the xylem

• Transport of sugar in the xylem

• Transport of water in the phloem

• Transport of sugar in the phloem

Which molecule is the phloem responsible for transporting?

• Glucose

• Sucrose

• Water

• Glycogen

Stomata are minute pores/ openings controlled by specialized cells called _____ cells

Which of the following indicates the pathway of water through a plant?

• root hair cell ->

  xylem ->

  mesophyll cells -> intercellular air

  space -> stomata

• root hair cell -> mesophyll cells -> xylem -> intercellular air space -> stomata

• xylem -> stomata -> root hair cell -> mesophyll cells -> intercellular air space

• xylem -> stomata -> mesophyll cells -> root hair cell -> intercellular air space

What of the following is NOT an adaptation of the root hair for its function?

• Large surface area due to root hair

• Large vacuole

• Dilute cell sap

• Many mitochondria for energy release

How does water enter the roots from the soil?

• Diffusion

• Osmosis

• Transpiration

• Active transport

Transpiration is...

• The movement of water through a plant from the roots up the stem

• The process of minerals and sugars moving through plant veins

• The flow of water into plant roots by osmosis from the soil

• The loss of water vapour from the leaves of a plant

What happens to transpiration rate as light intensity increases?

• Increases

• Decreases

• Stays the same

What happens to transpiration rate as humidity increases?

• Increases

• Decreases

• Stays the same