Biology Final Review

Front

What is the structure of a DNA molecule?

Back

A DNA molecule is structured as a double helix.

Front

How many chromosomes do human cells have?

Back

Human cells have 46 chromosomes.

Front

What is the significance of DNA in living organisms?

Back

DNA serves as the blueprint for traits of all living things.

Front

What is the most specific level of biological classification?

Back

The most specific level of biological classification is species.

Front

What does the term 'dominant' refer to in genetics?

Back

Dominant describes a trait that covers over, or masks another form of that trait.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis.

Front

What is the role of mitochondria in cells?

Back

Mitochondria are known as the powerhouse of the cell, generating ATP through cellular respiration.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have both.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is the purpose of photosynthesis?

Back

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