Biology Midterm Review

Front

What is the key role of nucleic acids?

Back

Store and transmit heredity, genetic information.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require ATP energy, but active transport does.

Front

What is the correct representation of DNA replication for the segment T-A-C-G-C-G-A-A-T?

Back

A-T-G-C-G-C-T-T-A

Front

What is the passive transport of water across a selectively permeable membrane called?

Back

Osmosis.

Front

What process is responsible for synthesizing proteins from mRNA?

Back

Translation.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis.

Front

Define osmosis in biological terms.

Back

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

Front

What is the role of ATP in active transport?

Back

ATP provides the energy required to move substances against their concentration gradient.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil.

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a membrane via specific transmembrane proteins.