Part 01 STAAR Biology Review

Front

What is the function of a semi-permeable cell membrane?

Back

To maintain homeostasis by allowing only certain molecules to cross.

Front

What biomolecule enables large molecules to cross the cell membrane?

Back

Proteins.

Front

What type of transport requires energy supplied by ATP?

Back

Active Transport.

Front

What is the role of the contractile vacuole in paramecia?

Back

It pumps out excess water to maintain homeostasis.

Front

What happens if the contractile vacuole fails to function in paramecia?

Back

The excess water would accumulate and burst the cell.

Front

What process determines cell differentiation or specialization?

Back

Gene Expression.

Front

How does a virus replicate?

Back

A virus enters a host cell and uses the materials from the host cell to produce new virus particles.

Front

What is homeostasis?

Back

The maintenance of a stable internal environment in an organism.

Front

What is passive transport?

Back

Movement of molecules across a cell membrane without the use of energy.

Front

What is active transport?

Back

Movement of molecules across a cell membrane using energy (ATP).