Cell Transport Slides with Questions

Multiple Choice

Which of the following components are found in the structure of the cell membrane?

• Proteins, Lipid bilayer, Carbohydrate chains

• Nucleus, Ribosomes, Mitochondria

• Cell wall, Chloroplasts, Vacuole

• DNA, RNA, Lysosomes

Open Ended

What is the significance of the cell membrane in maintaining the life of a cell?

Multiple Choice

Which component of the cell membrane is primarily responsible for making it semi-permeable and forming a double-layered structure?

• Phospholipids

• Cholesterol

• Proteins

• Carbohydrates

Open Ended

Explain how the structure of phospholipids contributes to the formation of the phospholipid bilayer in cell membranes.

Multiple Choice

Which of the following statements about cholesterol in the cell membrane is correct?

• It makes the membrane rigid and impermeable.

• It keeps the membrane stable and fluid.

• It acts as a channel for transport.

• It serves as an identifier on the cell surface.

Fill in the Blank

Fill in the blank: The phosphate head of a phospholipid is ___, meaning it is attracted to water.

Open Ended

Describe how the cell membrane's semi-permeable nature affects the movement of molecules such as oxygen, carbon dioxide, and ions.

Multiple Choice

Which of the following are functions of membrane proteins?

• Transport

• Cell-cell recognition

• Anchorage/Attachment

• All of the above

Multiple Choice

Which membrane structure is primarily responsible for the recognition of cell identity?

• Phospholipids that are hydrophilic & hydrophobic

• Phospholipids & Transport Proteins

• Peripheral Proteins that act as Receptors

• Glycolipids & Glycoproteins

Open Ended

Explain how the spike proteins on SARS-CoV-2 interact with human cells, based on the information provided.

Multiple Select

Select all the correct statements about facilitated diffusion.

• It requires energy from ATP.

• It involves protein channels.

• It moves substances from high to low concentration.

• It can transport water molecules through aquaporin channels.

Multiple Choice

Which of the following statements about passive transport is correct?

• It requires energy from ATP.

• It moves solutes from low to high concentration.

• It sometimes requires proteins to help substances cross the membrane.

• It always involves protein pumps.

Fill in the Blank

Active transport requires ___ to move substances against the concentration gradient.

Multiple Choice

Which of the following best describes active transport in cells?

• It moves materials from low to high concentration using ATP.

• It moves materials from high to low concentration without energy.

• It only occurs in plant cells.

• It does not require protein pumps.

Multiple Select

Which of the following are examples of passive transport?

• Osmosis

• Diffusion

• Facilitated diffusion

• Bulk transport

Multiple Choice

What does tonicity refer to in the context of osmosis?

• Relative amount of solute

• Movement of solvent

• Type of cell membrane

• Amount of ATP used

Multiple Choice

How does the movement of molecules differ between diffusion and osmosis?

• Diffusion moves solute molecules, osmosis moves solvent molecules.

• Diffusion requires energy, osmosis does not.

• Osmosis moves molecules from high to low concentration, diffusion does the opposite.

• Both processes require a semipermeable membrane.

Multiple Choice

Which of the following best describes the main difference between diffusion and osmosis?

• Diffusion involves the movement of solute, while osmosis involves the movement of solvent (water).

• Diffusion only occurs in living cells, while osmosis occurs in all environments.

• Osmosis moves solute from high to low concentration, while diffusion moves water from low to high concentration.

• Diffusion requires a membrane, while osmosis does not.

Multiple Select

Which of the following statements about osmosis and concentrations are correct?

• Osmosis involves water moving from a hypotonic to a hypertonic solution.

• A hypertonic solution has a higher solute concentration than a hypotonic solution.

• Water moves from an area of high solute concentration to low solute concentration during osmosis.

• Direction of osmosis is determined by comparing total solute concentrations.

Fill in the Blank

In a hypotonic environment, animal cells may burst because they gain too much ___ .

Multiple Choice

What happens to plant cells in a hypertonic environment?

• They burst due to excess water intake.

• They become plasmolyzed and wilt.

• They remain unchanged.

• They become turgid and swollen.

Open Ended

Explain why isotonic environments are ideal for animal cells but not perfect for plant cells.

Multiple Choice

What is the net effect on an animal cell placed in a hypotonic solution?

• The cell shrinks due to water loss.

• There is no net movement of water.

• The cell swells due to water gain.

• The cell becomes plasmolyzed.

Open Ended

How does the structure of the cell membrane help it perform its function in the cell?

Multiple Choice

What are the main components of the cell membrane as shown in the diagram?

• Proteins, lipid bilayer, carbohydrate chains

• Nucleus, mitochondria, ribosomes

• DNA, RNA, enzymes

• Cell wall, cytoplasm, vacuole