Cell Transport

Amino acids, sugars, and ions move across the cell membrane. Their movement from a region of high concentration to a region of low concentration is accomplished by special proteins in the membrane. Which of the following terms applies to this type of cell transport?

• Active transport

• Facilitated diffusion

• Osmosis

• Transcription

If an animal cell is placed in plain water, it will swell and burst. The bursting of the cell is a result of which biological process?

• Active transport

• Enzyme activity

• Osmosis

• Respiration

A cell has a defect that results in the loss of its ability to regulate the passage of water, food, and wastes into and out of the cell. In which of the following cell structures is this defect most likely to be located?

• Ribosomes

• Chloroplasts

• Cell membrane

• Endoplasmic reticulum

The solution in the beaker is

• hypotonic

• hypertonic

• isotonic

The solution in the beaker is

• hypertonic

• hypotonic

• isotonic

Water will go from _________ to __________.

• beaker to cell

• cell to beaker

This cell will _______________.

• shrivel

• swell

• stay the same

Does osmosis require energy?

• Yes

• No

If a cell is placed in a hypotonic solution, water will move _____________ the cell.

________________ are embedded in the membrane and act as pumps and channels to pull some larger, charged molecules into or out of the cell.