Bio Winter Exam Review

Front

What is the result of mitosis in terms of chromosome number?

Back

Each daughter cell will have the same number of chromosomes as the original cell. If the original cell has 48 chromosomes, each daughter cell will also have 48 chromosomes.

Front

What property allows water striders to walk on water?

Back

Cohesion, which is the attraction between water molecules that creates surface tension.

Front

Which part of the cell membrane is hydrophobic?

Back

The tails of the phospholipids are hydrophobic.

Front

How many chromosomes does each parent contribute to their offspring?

Back

Each parent contributes 23 chromosomes.

Front

What type of solution causes water to move out of a cell?

Back

A hypertonic solution.

Front

Define mitosis.

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells, maintaining the same chromosome number as the parent cell.

Front

What is cohesion in the context of water molecules?

Back

Cohesion is the property of water that allows molecules to stick together due to hydrogen bonding.

Front

What is the function of the hydrophobic tails in the cell membrane?

Back

The hydrophobic tails help to create a barrier that separates the inside of the cell from the outside environment.

Front

What happens to a cell in a hypertonic solution?

Back

The cell loses water and may shrink due to osmosis.

Front

What is the difference between a hypertonic and hypotonic solution?

Back

A hypertonic solution has a higher concentration of solutes outside the cell, causing water to move out, while a hypotonic solution has a lower concentration of solutes outside the cell, causing water to move into the cell.