AP Biology - Unit 2 review

Front

What is the primary function of ribosomes in cells?

Back

Ribosomes are responsible for synthesizing proteins.

Front

What does the fluid mosaic model describe about cell membranes?

Back

The fluid mosaic model describes that phospholipids can shift laterally along the plane of the membrane.

Front

What happens to a cell placed in a hypertonic solution?

Back

The cell will shrink due to water moving out of it.

Front

What role do glycolipids play in cell membranes?

Back

Glycolipids function as recognition sites for interactions between cells.

Front

Which organelle is responsible for hydrolysis of macromolecules?

Back

Lysosomes are responsible for hydrolysis using enzymes.

Front

Define hypotonic solution.

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing the cell to swell.

Front

Define hypertonic solution.

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing the cell to shrink.

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.

Front

What is the significance of membrane proteins?

Back

Membrane proteins assist in transport, act as enzymes, and serve as receptors for signaling.

Front

What is the function of cholesterol in cell membranes?

Back

Cholesterol helps to stabilize the fluidity of the cell membrane.