Bio1

What is the function of the nucleus in an animal cell?

Contains genetic material and controls cell activities.

What is cytoplasm?

Jelly-like substance where cell processes occur.

What is the role of the cell membrane?

Controls entry and exit of substances in and out of the cell.

What is the function of mitochondria?

Site of aerobic respiration, produces energy.

What do ribosomes do?

Synthesize proteins.

What additional structures do plant cells have?

Cell wall, chloroplast, vacuole.

What is the function of a cell wall?

Provides support and protection.

What do chloroplasts do?

Carry out photosynthesis.

What is a vacuole?

Stores substances and maintains cell turgor.

What defines a bacterial cell?

No nucleus, contains cytoplasm, cell membrane, and cell wall.

How is magnification calculated?

Image size divided by real size.

What is diffusion?

Movement from high to low concentration.

What is osmosis?

Movement of water through a partially permeable membrane.

What is active transport?

Movement against concentration gradient using energy.

What is the hierarchy of biological organization?

Cells form tissues, tissues form organs, organs form systems.

What is an enzyme?

A biological catalyst that speeds up reactions.

What does amylase do?

Breaks down starch into sugars.

What does protease do?

Breaks down proteins into amino acids.

What does lipase do?

Breaks down lipids into fatty acids and glycerol.