Unit 2 Cells

Front

What are hydrophobic and hydrophilic substances?

Back

Hydrophobic substances dislike water, while hydrophilic substances like water.

Front

What organelle in plant cells uses light energy to produce sugar?

Back

Chloroplast.

Front

What distinguishes stem cells from other cells?

Back

Stem cells are undifferentiated cells that can turn into various types of cells as needed.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell uses energy to bring substances in from outside.

Front

What happens to an animal cell in a hypertonic solution?

Back

The cell would shrivel because the water moves out of the cell.

Front

Define osmosis.

Back

Osmosis is the movement of water across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.

Front

What is the function of mitochondria?

Back

Mitochondria are the powerhouse of the cell, generating ATP through cellular respiration.

Front

What is the role of the nucleus in a cell?

Back

The nucleus contains the cell's genetic material and controls its activities.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of particles from high to low concentration, while osmosis specifically refers to the movement of water.

Front

What is a cell membrane?

Back

The cell membrane is a protective barrier that regulates what enters and exits the cell.