Biology -Semester Exam

Front

What is the final result in meiosis?

Back

Four new cells, each with half the chromosomes.

Front

How many chromosomes are in the gametes of sea turtles with 56 chromosomes in somatic cells?

Back

28

Front

Define plasma membrane.

Back

Flexible boundary of a cell that separates a cell from its surroundings.

Front

What type of solution is a cell in if the concentration of red molecules outside is higher than inside and they cannot penetrate the cell?

Back

Hypertonic solution.

Front

What is the process called when cells form a vesicle to take in materials?

Back

Endocytosis.

Front

What is the primary function of the plasma membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is the difference between mitosis and meiosis?

Back

Mitosis results in two identical daughter cells, while meiosis results in four genetically diverse cells.

Front

What is osmosis?

Back

The movement of water molecules across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the role of ribosomes in a cell?

Back

To synthesize proteins by translating messenger RNA.

Front

Define endocytosis.

Back

The process by which cells take in substances by engulfing them in a vesicle.