Bio: Lesson Three (Chp.8.3)

Multiple Choice

Which of the following best describes passive transport across a cell membrane?

• Movement of substances using energy from the cell

• Movement of substances from low to high concentration

• Movement of substances without using additional energy

• Movement of substances only through protein channels

Multiple Choice

Which of the following statements best describes facilitated diffusion?

• It requires energy from the cell to move molecules across the membrane.

• Molecules move directly through the lipid bilayer without any assistance.

• Molecules pass through special protein channels without using the cell's energy.

• It only occurs with water molecules.

Fill in the Blanks

The movement of water through cell membranes by facilitated diffusion is called

.

Multiple Choice

What happens to a cell placed in a hypertonic solution?

• The cell swells up and bursts.

• The cell shrinks and wrinkles.

• The cell remains the same size.

• The cell divides.

Multiple Select

Which of the following are true about active transport?

• It requires energy from the cell.

• It moves materials against a concentration gradient.

• It only occurs with water molecules.

• It uses transport proteins in the membrane.

Multiple Choice

Which process involves a cell engulfing large particles such as bacteria?

• Phagocytosis

• Exocytosis

• Osmosis

• Diffusion

Multiple Choice

What is the main function of the cell membrane in maintaining homeostasis?

• To regulate the movement of molecules and substances in and out of the cell

• To produce energy for the cell

• To store genetic information

• To break down waste products

Multiple Choice

___ is particle movement from an area of lower concentration to an area of higher concentration.

• Active transport

• Passive transport

Multiple Choice

Which type of passive transport focuses on the movement of water through the membrane?

• Facilitated diffusion

• Osmosis

• Diffusion

Multiple Choice

What term describes a solution that has the same solute concentration inside of and outside of the cell?

• Hypertonic

• Hypotonic

• Isotonic

Multiple Choice

The cell shrunk in size, which means it was placed in a ____ solution.

• Isotonic

• Hypertonic

• Hypotonic

Multiple Choice

Active transport requires energy because...

• The cell is moving something against a concentration gradient
• The cell is moving something with a concentration gradient

Multiple Choice

What part of the cell regulates what can enter and leave the cell?  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Multiple Choice

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport