Biology Chapter 23

Which of the following are functions of the stems of a typical plant? Choose Two correct answers.

• hold leaves up to the sun

• conduct photosynthesis

• gather water and nutrients from the soil

• transport water and nutrients

Tags

NGSS.MS-LS2-3

Which of the following processes help a plant conserve water?

• transpiration

• photosynthesis

• wilting

• gas exchange

Which statement best describes how water rises up the vascular tissue and through the leaves of a plant?

• Osmotic pressure causes water to move upward.

• Plant cells use active transport to pump water upward

• Adhesive and cohesive forces allow transpiration to pull water upward

• Hair cells act like tiny oars, and they push water upward.

Tags

NGSS.MS-ESS2-4

Which of the below leave structure is the main site for gas exchange?

• Palisade mesophyll

• spongy mesophyll

• Vascular bundle

• Epidermis

Tags

NGSS.MS-LS1-6

Morning glories are flowering vines that will climb up a trellis or other support by wrapping tendrils around it. What kind of tropism causes the morning glories to twine around the support this way?

• phototropism, because the light pulls the plant upwards

• gravitropism, because gravity helps the morning glories orient themselves in space

• thigmotropism, because the morning glories twine around the support when they touch it

• nutrotropism, because the curliness of the morning glories depends on the nutrients in the soil