Biology Standard 1 Review: Molecules to Organisms

Front

What is the primary function of DNA in cells?

Back

To determine the structure of proteins.

Front

Explain the hierarchical organization of interacting systems in multicellular organisms.

Back

Cells form tissues, tissues form organs, organs form systems.

Front

How do feedback mechanisms contribute to homeostasis in organisms?

Back

By maintaining stable internal conditions.

Front

How are photosynthesis and cellular respiration interconnected?

Back

Photosynthesis produces oxygen and glucose, which are used in cellular respiration to release energy.

Front

What happens if a mutation causes a change to the DNA?

Back

The mutation might cause a change in the protein structure, which would affect the function of the protein.

Front

What is homeostasis?

Back

The maintenance of stable internal conditions in an organism.

Front

Define photosynthesis.

Back

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is cellular respiration?

Back

The process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What role do enzymes play in biological processes?

Back

Enzymes act as catalysts to speed up chemical reactions in the body.

Front

What is the structure of a cell membrane?

Back

A phospholipid bilayer with embedded proteins that controls the movement of substances in and out of the cell.