Biology EOC Review- NC

Front

What controls what enters and leaves a cell?

Back

Cell membrane.

Front

Are mutations random?

Back

True.

Front

What is the difference between DNA and RNA in terms of bases?

Back

RNA contains uracil in place of thymine.

Front

What is the movement of molecules from higher concentration to lower concentration called?

Back

Diffusion.

Front

What concentration of solute does an isotonic solution have compared to inside the cell?

Back

Equal.

Front

What is the function of the cell membrane?

Back

It regulates the movement of substances in and out of the cell.

Front

What is the primary function of DNA?

Back

To store and transmit genetic information.

Front

What is the role of RNA in protein synthesis?

Back

RNA acts as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

Front

What is osmosis?

Back

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

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.