Plant Systems and Homeostasis

Sugar is transported through ____, while water is transported through _____.

• xylem; phloem

• phloem, guard cells

• phloem, xylem

• leaves, stems

Which of the following is not true of water movement in plants?

• Transpiration through stomata pulls water through a plant.

• Adhesion to phloem cell walls helps water to defy gravity.

• Water enter roots via the process of osmosis.

• Some water moves into leaves where it is used for photosynthesis.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following plant tissues is involved in storing nutrients and conducting photosynthesis?

• Dermal

• Vascular

• Leaves

• Ground

• Roots

Tags

NGSS.MS-LS1-6

Which of the following is the primary sink for sugar movement for plants in the springtime?

• Roots

• Stems

• Fruit

• Buds

Carbon dioxide is necessary for plant growth. It enters a plant through:

• stomata

• root hairs

• phloem

• guard cells

Tags

NGSS.MS-LS1-6

Roots have all of the following functions in a plant, except:

• Providing stability

• Obtaining water via osmosis

• Storing nutrients

• Releasing oxygen via diffusion

Tags

NGSS.MS-LS2-1

The primary function of letter D in the diagram is to:

• Collect sunlight for photosynthesis

• Allow carbon dioxide and oxygen to move into and out of a plant

• Move water to cells that need it for photosynthesis

• Protect the plant from attack and dehydration

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

Which of the following is NOT an immune response of plants?

• Sealing off infected cells and allowing them to die

• Sending chemical signals to nearby parts of the plant to warn of a threat

• Losing water pressure in the plant so it wilts thus discouraging attack by pathogens

• Strengthening cells walls when a pathogen is detected

Which of the following is indicated by #2 in the diagram?

• Ground tissue

• Vascular tissue

• Dermal tissue

• Stem tissue

Which of the following is an accurate comparison of the movement of substances in xylem tissue and phloem tissue?

• Water moves upward the plant in xylem; phloem moves down the plant in phloem.

• Water moves by capillary action through xylem tissue; sugar moves by pressure flow through phloem tissue.

• Water moves upward in phloem tissue; sugar moves in all directions through xylem tissue.

• Osmosis is the only transport mechanism needed for water movement through plants; active transport is the only transport mechanim needed for sugar movement in plants.

Tags

NGSS.MS-LS2-3