The Cell in its Environment

Glucose enters a liver cell through a protein channel. What type of transport is this?

• diffusion

• facilitated diffusion

• osmosis

• active transport

Oxygen moves into a contracting heart muscle cell. What type of transport is this?

• diffusion

• facilitated diffusion

• osmosis

• active transport

A nerve cell uses energy to pump sodium out of its cytoplasm into a sodium-rich environment. What type of transport is this?

• diffusion

• osmosis

• facilitated diffusion

• active transport

Water moves out of the skin cells of a person swimming in a freshwater pond. What type of transport is this?

• diffusion

• osmosis

• facilitated diffusion

• active transport

Exocytosis occurs when a cell engulfs large food particles.

• True

• False

Water diffusing through a semi-permeable membrane is called

• active transport

• osmosis

• facilitated diffusion

• hydrocytosis

The cell membrane is built of a double layer of ___________

• lipids

• carbohydrates

• proteins

• nucleic acids

Facilitated diffusion moves large particles such as sugars through

• lipid channels

• protein channels

• carbohydrate channels

• water channels

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

• true

• False

Tags

NGSS.MS-LS1-2

Passive transport can move molecules from a low to high concentration.

• true

• false