2021 AP Biology Viruses

Front

What are prions?

Back

Prions are misfolded proteins that can cause disease by inducing other proteins to misfold.

Front

How can viral infections be prevented in humans?

Back

Getting vaccinated is an effective method to prevent viral infections.

Front

What is a common characteristic of both bacteria and viruses?

Back

Both bacteria and viruses have genetic material composed of nucleic acid.

Front

Where can viruses be found?

Back

Viruses can be found in air, water, soil, and all of these environments.

Front

Why are viruses considered nonliving?

Back

Viruses are considered nonliving because they are not cellular, cannot reproduce on their own, and cannot make proteins.

Front

What is the structure of a virus?

Back

A virus typically consists of genetic material (DNA or RNA) surrounded by a protein coat called a capsid.

Front

What is the role of a vaccine?

Back

Vaccines stimulate the immune system to recognize and fight specific viruses.

Front

What is the difference between a virus and a bacterium?

Back

Viruses are acellular and require a host to replicate, while bacteria are single-celled organisms that can reproduce independently.

Front

What is a viral infection?

Back

A viral infection occurs when a virus enters a host organism and begins to replicate, often causing disease.

Front

What is the function of ribosomes in cells?

Back

Ribosomes are responsible for protein synthesis in cells.