Biology Semester 1 Review

Front

In passive transport, molecules move from an area of __________ concentration to an area of __________ concentration.

Back

high, low

Front

What are nucleotides made of?

Back

Sugar, Phosphate, nitrogen base

Front

Genetic info flows in one direction. Which best represents this flow?

Back

DNA-RNA-protein

Front

What part of the cell cycle results in the splitting of the new cells?

Back

Cytokinesis

Front

Why is DNA important?

Back

It serves as the blueprint for traits of all living things.

Front

What is the function of the cell membrane?

Back

To protect the cell and regulate what enters and leaves.

Front

Define osmosis.

Back

The movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What are the three main types of biomolecules?

Back

Carbohydrates, Proteins, Lipids

Front

What is the role of ribosomes in a cell?

Back

To synthesize proteins by translating messenger RNA.

Front

What is the structure of DNA?

Back

A double helix composed of nucleotides.