Cell Organelles & Transport Quiz Remediation

Devin got his wisdom teeth removed and his mouth is swollen. His doctor tells him to rinse his mouth with a warm saltwater solution every few hours. How does the saltwater solution help heal Devin's mouth?

• the saltwater is hypertonic and the swollen cells will release water through osmosis

• the saltwater is hypertonic and the swollen cells will release water through active transport

• the saltwater is hypotonic and the swollen cells will release water through diffusion

• the saltwater is hypotonic and the swollen cells will release water through osmosis

A cell biologist compared the properties of rough ER and smooth ER. She found that one type of ER is used for protein storage and the other is used for lipid storage. What accounts for this difference?

• rough ER has ribosomes on it

• smooth ER creates amino acids for ribosomes to form into proteins

• rough ER forms proteins and transports them to the mitochondria

• smooth ER works with the nucleus to synthesize protein

The student observes that the molecules of red dye move from an area of higher concentration to an area of lower concentration until equilibrium is reached. Which BEST describes the type of cellular transport that the student is investigating?

• The student is investigating the passive transport of diffusion

• The student is investigating the active transport of osmosis

• The student is investigating the active transport of diffusion

• The student is investigating the passive transport of osmosis

A sample of crushed onion cells were centrifuged in a test tube. Cells and cell components have separated into layers as pictured. Which layer contains the greatest concentration of organelles that act as the sites for protein synthesis?

• cell fluid

• ribosomes

• mitochondria

• nuclei

A student is investigating cellular transport. What will most likely occur when the student places a cell that is 95% water inside of a solution that is 100% water?

• the cell will shrink because it has less sugar than the solution

• the cell will shrink because it has less water

• the cell will swell because it will produce more sugar

• the cell will swell because water enters it