Understanding Transport Mechanisms in Cells

Which of the following processes involves the movement of water molecules across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration?

• Diffusion

• Osmosis

• Active Transport

• Facilitated Diffusion

What is the primary difference between active transport and passive transport?

• Active transport requires energy, while passive transport does not.

• Active transport moves molecules from high to low concentration, while passive transport moves them from low to high concentration.

• Active transport only occurs in plant cells, while passive transport occurs in animal cells.

• Active transport involves water molecules, while passive transport involves solute molecules.

In diffusion, molecules move from an area of _______ concentration to an area of _______ concentration.

• low; high

• high; low

• equal; equal

• high; high

Which of the following statements is true about osmosis?

• It requires energy in the form of ATP.

• It involves the movement of solutes across a membrane.

• It is a type of active transport.

• It involves the movement of water across a semipermeable membrane.

Which of the following is NOT a characteristic of active transport?

• Requires energy

• Moves substances against their concentration gradient

• Utilizes transport proteins

• Moves substances along their concentration gradient

Which of the following best describes the process of diffusion?

• Movement of particles from low to high concentration

• Movement of particles from high to low concentration

• Movement of water molecules only

• Movement of particles requiring energy

Which of the following is true about facilitated diffusion?

• It requires energy in the form of ATP.

• It moves substances against their concentration gradient.

• It involves the use of transport proteins.

• It is a type of active transport.

What is the primary energy source for active transport?

• Glucose

• ATP

• NADH

• GTP

Which of the following processes is most likely to occur when a cell is placed in a salt water solution?

• The cell will gain water and swell.

• The cell will lose water and shrink.

• The cell will remain the same size.

• The cell will undergo active transport.

Tags

NGSS.HS-LS1-3

Where will the water go?

• Into the cell

• Out of the cell

• Equally in & out - it's isotonic

• There is no water

Tags

NGSS.HS-LS1-3