Biology Midterm Review Questions

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What type of transport requires energy?

Back

Active Transport requires energy to move substances against their concentration gradient.

Front

How do enzymes affect activation energy?

Back

Enzymes decrease the activation energy of a reaction, making it easier for the reaction to occur.

Front

What are amino acids the monomers of?

Back

Amino acids are the monomers of proteins.

Front

What do both prokaryotic and eukaryotic cells contain?

Back

Both prokaryotic and eukaryotic cells contain ribosomes.

Front

Define active transport.

Back

Active transport is the process of moving molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

What is the role of ribosomes in cells?

Back

Ribosomes are responsible for protein synthesis in both prokaryotic and eukaryotic cells.

Front

What is a macromolecule?

Back

A macromolecule is a large complex molecule, such as proteins, nucleic acids, carbohydrates, and lipids, that are essential for life.

Front

What is the function of enzymes?

Back

Enzymes act as catalysts to speed up chemical reactions in biological processes.