1st Semester Biology Review

Front

What type of organisms contain chloroplasts in their cells?

Back

Plants and some protists.

Front

What is the purpose of meiosis?

Back

To produce gametes with half the number of chromosomes.

Front

What are viruses?

Back

Infectious agents that can only replicate inside the cells of an organism.

Front

What is gene activation?

Back

The process by which a gene is switched on.

Front

How do viruses infect cells?

Back

By attaching to the cell membrane and injecting their genetic material into the host cell.

Front

What is the function of chloroplasts?

Back

To conduct photosynthesis in plant cells.

Front

What are gametes?

Back

Reproductive cells (sperm and eggs) that contain half the number of chromosomes.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

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

Front

What is the role of DNA in cells?

Back

DNA contains the genetic instructions for the development and functioning of living organisms.

Front

What is a mutation?

Back

A change in the DNA sequence that can lead to changes in protein function.