What is the primary function of the cell membrane?

• To produce energy for the cell

• To protect the cell and control what goes in and out

• To store genetic information

• To synthesize proteins

Tags

NGSS.MS-LS1-2

What are the molecules that make up the cell membrane?

• Proteins

• Carbohydrates

• Phospholipids

• Nucleic acids

What process allows substances to enter and exit the cell without using energy?

• Active transport

• Diffusion

• Endocytosis

• Exocytosis

What is the function of cholesterol in the cell membrane?

• To provide energy

• To stabilize the membrane

• To store genetic material

• To synthesize proteins

What is the function of integral proteins in the cell membrane?

• To act as enzymes

• To provide structural support

• To transport molecules across the membrane

• To store energy

What is the role of peripheral proteins in the cell membrane?

• To act as receptors

• To provide energy

• To synthesize lipids

• To store carbohydrates

What process uses energy to move substances across the cell membrane?

• Diffusion

• Osmosis

• Active transport

• Passive transport

What is the function of the phospholipid tails in the cell membrane?

• To attract water

• To repel water

• To store energy

• To synthesize proteins

What is the role of peripheral proteins in the cell membrane?

• Provide hydrophilic pathways

• Assist in signaling and maintain cell shape

• Stabilize the membrane

• Control movement of substances

Which structure provides hydrophilic pathways for specific molecules to pass through the membrane?

• Protein channels

• Phospholipid bilayer

• Cholesterol

• Glycoproteins