The Cell Membrane & Transport

Multiple Choice

Which of the following best describes the main function of the plasma membrane in a cell?

• It controls the movement of substances in and out of the cell.

• It produces energy for the cell.

• It stores genetic information.

• It synthesizes proteins.

Multiple Choice

What is the main structural component of the plasma membrane?

• Proteins

• Carbohydrates

• Phospholipid bilayer

• Nucleic acids

Multiple Choice

Which of the following statements about phospholipids is correct?

• The head is hydrophobic and the tail is hydrophilic.

• Both head and tail are hydrophilic.

• The head is hydrophilic and the tail is hydrophobic.

• Both head and tail are hydrophobic.

Multiple Select

Select all correct statements about the phospholipid bilayer.

• It is made of two layers of phospholipids.

• The hydrophilic heads face outward toward water.

• The hydrophobic tails face inward away from water.

• It allows all molecules to pass freely.

Multiple Choice

Which type of protein in the plasma membrane allows larger molecules and water to move in and out of the cell?

• Channel proteins

• Lipid molecules

• Carbohydrate chains

• Cholesterol

Multiple Choice

What is the main function of the proteins labeled in the plasma membrane diagram?

• Transport molecules across the membrane

• Store genetic information

• Produce energy for the cell

• Break down waste products

Multiple Select

Which of the following are types of passive transport?

• Diffusion

• Osmosis

• Facilitated Diffusion

• Endocytosis

Open Ended

How would adding salt to the isotonic solution affect the cell?

Multiple Choice

What happens to a cell placed in a hypertonic solution?

• It shrinks as water leaves the cell.

• It swells as water enters the cell.

• It remains the same size.

• It bursts due to excess water.

Multiple Select

Which of the following statements about facilitated diffusion are correct?

• It requires transport proteins.

• It moves molecules from high to low concentration.

• It requires energy from the cell.

• It occurs across the plasma membrane.

Drag and Drop

Active transport moves molecules from regions of ​

Placeholder

concentration to regions of ​

Placeholder

concentration.

Drag these tiles and drop them in the correct blank above

low

high

equal

Multiple Choice

Which type of cell transport requires energy input from the cell?

• Facilitated diffusion

• Osmosis

• Active transport

• Passive transport

Open Ended

Explain the differences between passive and active transport in cells.