The Cell in Its Environment TEST

Water diffusing through a semipermeable membrane is called

• diffusion

• endocytosis

• osmosis

• exocytosis

_____ occurs when a cell engulfs large food particles.

• osmosis

• endocytosis

• exocytosis

• diffusion

The cell membrane is built of a double layer of_____

• proteins

• carbohydrates

• water

• lipids

Facilitated diffusion moves large molecules through ______

• double helix

• cell membrane

• proteins channels

The _____ controls the materials the move into and out of a cell.

• vacuole

• cell wall

• mitochondria

• cell membrane

The _____ use energy to pick up specific molecules and carry them across the cell membrane

• transport proteins

• epithelial

• lipids

• oxygen

Glucose enters a liver cell through a protein channel

• difussion

• facilitated difussion

• osmosis

• active transport

Oxygen moves into a containing heart muscle cell

• difussion

• facilitated difussion

• osmosis

• active transport

A nerve cell uses energy to pump sodium out of its cytoplasm into a sodium-rich environment

• diffusion

• facilitated diffusion

• osmosis

• active transport

Water moves out of the skin cells of a person swimming in a freshwater pond.

• diffusion

• facilitated diffusion

• osmosis

• active transport