Unit 3 Review Cells

A molecule that diffuses down a concentration gradient goes from an area of ______ concentration into an area of ______ concentration.

• High, Low

• Passive, Active

• Low, High

• Active, Passive

Passive transport requires no

• Osmosis

• Energy

• Protein Channels

• Sodium

Controlling what goes into or out of the cell without energy is called

• Active Transport

• Passive Transport

• Endocytosis

• Exocytosis

This example of passive transport gets energy from the natural motion of cells

• Osmosis

• Isotonic

• Concentration Gradient

• Diffusion

In facilitated diffusion, molecules move

• From high to low

• From low to high

How do you prevent/treat viruses

• Antibiotic

• Vaccine

• Medicine

• Penicillin

Which organelle is found in both plants and animal cells?

• Large Central Vacoules

• Cell Wall

• Chloroplasts

• Vesicles

Which is true about bacteria?

• Has a large nucleus

• Has a long lifespan making it resistant to antibiotics

• Simple cell structure and reproduces rapidly

• Complex with many organeles

Viruses reproduce by themselves

• True

• False

How do you treat bacterial infections?

• Vaccine

• Medicine

• Antibiotics

• Probiotics