Transport of water through xylem

Which pathway involves water movement through the cellulose cell wall without entering the protoplast of root cells?

• symplast pathway

• vacuolar pathway

• apoplast pathway

• cellulose pathway

How do plants primarily obtain water and minerals?

• through the stomata

• through the roots

• by active transport in root hair cells

• by osmosis in root hair cells

How do plants transport water from the roots to the leaves?

• through transpiration in the xylem

• via osmosis in the phloem

• by active transport in the roots

• through cohesion and adhesion in the xylem

Which theory of water transport states that hydrogen bonding allows water to maintain a continuous fluid column as water is pulled from roots to leaves

• Fusion

• Evaporation

• Pressure flow

• Cohesion-tension

How can water move up a plant against the force of gravity?

• Phototropism

• Geotropism

• Photosynthesis

• Capillary Action

What is the function of xylem in plant vascular tissues?

• Xylem transports water and minerals from roots to leaves

• Xylem transports sugars from leaves to roots

• Xylem regulates the flow of water and minerals in plants

Cellulose in the cell walls of xylem, increases the ______ of water molecules to help resist the effect of gravity.

• cohesion

• pressure

• adhesion

• arrangement

What effect does an increase in transpiration rates have on the cohesion tension in the xylem?

• decreases

• increases

• remains unchanged

Which of the following is an example of cohesion?

• Water molecules sticking to each other

• Water molecules sticking to cellulose in xylem walls

• Magnets sticking to a metal wall

• Gravity pulling water down

Root pressure is caused by

• active loading of water molecules into xylem vessels by endordermis cells

• active loading of salts into xylem vessels by endodermis cells

• xylem vessels using energy to actively load water upwards

• movement of water molecules upwards in xylem vessels through osmosis