Cells Unit Review 2

What is the purpose of mitosis?

• To increase the surface area of a cell
• To allow cells to divide for growth, repair, and renewal
• For increasing genetic variation within a species
• To allow for DNA replication and protein synthesis

The movement of substances across the cell membrane that requires the cell to use energy is _________ transport.

• passive

• active

• diffusion

• osmosis

Plants and animals receive ATP energy through the process of_______________

• cellular respiration

• photosynthesis

• diffusion

• osmosis

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

• Facilitated diffusion

• Osmosis

• Diffusion

During osmosis

• water moves from high to low concentration
• large or oddly shaped molecules move across a cell membrane
• water moves when energy is used
• proteins are built

A student noticed that placing celery in a glass of corn syrup caused the celery to wilt. What is the best explanation for this observation?

• Water moved into the celery cells by active transport.

• Water moved into the celery cells by osmosis.

• Salt moved into the celery cells by diffusion.

• Water moved out of the celery cells by osmosis.

Which type of solution has a greater concentration of water INSIDE of the cell? The water left the cell to reach equilibrium.

• Hypertonic

• Hypotonic

• Isotonic

Which of the following are needed for cellular respiration?

• Carbon dioxide and sunlight

• Oxygen and glucose

• Water and carbon dioxide

• ATP and Oxygen

Which type of solution had a greater concentration of water OUTSIDE of the cell? The water enters the cell to reach equilibrium.

• Hypertonic

• Hypotonic

• Isotonic

The process that releases energy (ATP) by breaking down glucose. (converts food molecules (glucose) into a form usable (ATP) by the organism)

• Cellular Respiration

• Photosynthesis