Roots & Absorption of Water

Front

Plant absorbs water through the _________.

Back

roots

Front

In which case would a cell most likely shrink?

Back

when placed in a solution containing a high salt concentration

Front

Diffusion and Osmosis are examples of...

Back

Passive Transport

Front

Within the epidermis, thousands of pairs of bean-shaped cells swell and shrink to open and close _______, which are tiny pores that control the exchange of oxygen and carbon dioxide gases and the release of water vapor.

Back

stomata

Front

A student noticed that placing wilted lettuce in a bowl of cool water caused the lettuce to become more crisp and firm. What is the best explanation for his observation?

Back

Water moved into the lettuce cells by osmosis.

Front

What is osmosis?

Back

The movement of water molecules from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane.

Front

What role do roots play in plants?

Back

Roots anchor the plant and absorb water and nutrients from the soil.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What are stomata?

Back

Tiny pores on the surface of leaves that allow for gas exchange.

Front

What happens to plant cells in a hypertonic solution?

Back

They lose water and may become plasmolyzed.