Cell Membrane Quiz

The main components of the cell membrane are:

• Nucleic acids and proteins

• Carbohydrates and lipids

• Phospholipids and proteins

• Amino acids and nucleotides

The cell membrane is found in:

• Animal cells only

• Plant cells only

• Both plant and animal cells

• Neither plant nor animal cells

What is the primary function of the cell membrane?

• To produce energy for the cell

• To store genetic information

• To control the movement of materials in and out of the cell

• To synthesize proteins for the cell

Tags

NGSS.MS-LS1-2

Which of the following is NOT a function of the cell membrane?

• Separating the cell from its environment

• Recognizing chemical signals

• Producing ATP for the cell

• Acting as a barrier for substances

Which of the following best describes the cell membrane's permeability?

• Completely permeable

• Selectively permeable

• Completely impermeable

• Randomly permeable

What is the hydrophilic part of a phospholipid?

• The lipid tails

• The phosphate head

• The entire molecule

• Neither the head nor the tail

What is the term for molecules that do not dissolve in water?

• Hydrophilic

• Hydrophobic

• Amphipathic

• Aqueous

Where are the lipid tails of phospholipids located in the cell membrane?

• Facing the outside environment

• Facing the inside of the cell

• Facing each other in the middle of the membrane

• Scattered randomly throughout the membrane

What is the role of cholesterol in the cell membrane?

• To increase membrane fluidity

• To provide energy for the cell

• To synthesize proteins

• To provide structure and prevent fatty acid chains from sticking together

Which type of membrane protein forms a channel for molecules to pass through?