AP-Bio: Cell Structure and Function

The absorption of nutrients is determined by...

• The cell wall

• The cell's surface area
• The cell's ribosomes
• The cell's DNA

Tags

NGSS.HS-LS1-6

The amount of nutrients needed is determined by...

• The cell's volume
• The cell's surface area
• The cell's Rough ER
• The cell's Smooth ER

Tags

NGSS.MS-LS2-1

The larger a cell is, the more difficult it is for the cell to move enough nutrients and wastes across its cell membrane to maintain its normal functions.

• True
• False

Tags

NGSS.MS-LS1-2

A cell has a volume of 64 units and total surface area of 96 units. What is the cell's surface area to volume ratio?

• 2:3

• 2:8

• 3:4

• 4:7

Which of the following is least efficient?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-1

Generally, cells will divide once they become -

• depleted of nutrients

• too large

• 14 hours

• diploid

Tags

NGSS.HS-LS1-4

Which statement about diffusion is false?

• Diffusion does not require ATP
• Simple diffusion depends upon specific carrier proteins
• In diffusion, molecules move from areas of greater concentration to areas of lesser concentration
• Diffusion continues until the molecular concentrations are in equilibrium

If aquaporins are injected into the membranes of epithelial cells that line blood vessels,

• the flow of Na+ through aquaporins will increase
• the intracellular concentration of K+ will increase
• the membranes will become more permeable to water
• the electrical properties of the cells will be altered

Which of the following is major cause of the size limits for certain types of cells?

• evolutionary progression in cell size; more primitive cells have smaller sizes.
• the need for sufficient surface area to support the cell's metabolic needs.
• limitation on the strength and integrity of the plasma membrane as cell size increases
• the difference in plasma membranes between prokaryotes and eukaryotes

As a cell’s size increases, its ratio of surface area to volume decreases.

• True
• False