Unit 2 - Topics 4-5

A impermeable boundary allows only certain materials to cross it

• True

• False

The movement of particles from an area of low concentration to an area of high concentration is called exclusion

• True

• False

"Osmosis" is a term used to describe the diffusion of water through a selectively permeable membrane

• True

• False

Replacement of cells occurs through mitosis

• true

• false

Root hairs allow water to enter the root of a plant by diffusion.

• True

• False

The loss of water from a plant through evaporation is called the transpiration.

• True

• False

Unicellular organisms obtain all necessary materials through their cell walls

• True

• False

Each organ is made up of one type of tissue

• True

• False

The large surface area of red blood cells allows the cells to pick up large amounts of oxygen

• True

• False

When cells take on specific roles, we say they specialize

• True

• False