Final Review Questions Biochemistry to DNA

Front

What is Active Transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy (ATP).

Front

What is Osmosis?

Back

Osmosis is the passive 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 function of the nucleus in a cell?

Back

The nucleus serves as the control center of the cell, containing most of the cell's genetic material (DNA) and regulating gene expression.

Front

What is a Cell?

Back

A cell is the smallest unit of structure and function in a living organism, capable of performing all life processes.

Front

What do plants need for photosynthesis?

Back

Plants need carbon dioxide, water, and sunlight to perform photosynthesis, which produces glucose and oxygen.

Front

What is Cellular Respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are Reactants in a chemical reaction?

Back

Reactants are the starting substances in a chemical reaction that undergo change to form products.

Front

What is DNA?

Back

DNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for life, found in the nucleus of eukaryotic cells.

Front

What is Exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles that fuse with the plasma membrane, releasing their contents outside the cell.

Front

What is Endocytosis?

Back

Endocytosis is the process by which a cell takes in materials by engulfing them in a vesicle formed from the plasma membrane.