Cell Membrane Structure

All cells are surrounded by cell membranes.

• true

• false

Tags

NGSS.MS-LS1-2

Most of the cell membrane consists of

• carbohydrates

• proteins

• lipids

• nucleic acids

Hydrophobic means

• water-loving

• water-containing

• water-fearing

• when there is no water

The cell membrane is _____________ layers thick.

• 1

• 2

• 3

• 4

The molecule that makes up most of the membrane is a ______________.

• sphingolipid

• phospholipid

• triglyceride

• steroid

Phospholipids consist of a

• hydrophobic tail and hydrophilic head

• hydrophilic head and hydrophobic tail

The hydrophobic tails are on the ______________ of the membrane, and the hydrophilic heads are on the ______________ of the membrane.

• outside, inside

• inside, outside

Cholesterol controls membrane ________________________.

• fluidity

• rigidity

• both

_______________________ proteins are wedged into the cell membrane.

• peripheral

• integral

Peripheral proteins sit ___________________________ the cell membrane

• atop/outside of

• within