AP Plant transpiration regulation review

What tubes transport water from the roots to the leaves?

• xylem

• phloem

• stems

• roots

What is the effect of increasing leaf area on transpiration?

• It increases transpiration rate

• It decreases transpiration rate

What is the effect of increasing wind speed on transpiration?

• It increases transpiration rate

• It decreases transpiration rate

What is the effect of increasing humidity on transpiration?

• It increases transpiration rate

• It decreases transpiration rate

What is the effect of increasing temperature on transpiration?

• It increases transpiration rate

• It decreases transpiration rate

What is the effect of increasing light intensity on transpiration?

• It increases transpiration rate

• It decreases transpiration rate

Transpiration is

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

• the loss of water from the leaves of a plant by the process of evaporation

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

• the process of minerals and sugars moving through plant veins

Water vapour exits a plant leaf by

• the stomata

• the epidermis

• the palisade cells

• the spongy mesophyll

Capillary action is the result of adhesion. Which aspect of water is responsible for this?

• Nonpolar covalent bonds enable water to dissolve other substances.

• Polar covalent bonds join molecules of water to other substances.

• Hydrogen bonds form between water and another substance.

• Ionic bonds enable electrons to flow through water and into another substance.

What part of the cell opens and closes the stomata?

• guard cells

• mitochondria

• chloroplast

• vacuole