Viruses

Front

What are cell membranes made of?

Back

Cell membranes of living organisms are made of a bilayer of lipids.

Front

What happens when a virus enters a cell?

Back

Once a virus gets into a cell, it releases its DNA or RNA into the cell.

Front

What does a virus do when it enters a human or animal cell?

Back

It shows a virus entering the cell of a human or animal.

Front

What is true about viruses?

Back

A virus has no cells.

Front

What organelles do viruses have?

Back

A virus has no organelles, because it has no cells, and it is non-living.

Front

What is a virus?

Back

A virus is a microscopic infectious agent that can only replicate inside the living cells of an organism.

Front

How do viruses differ from living organisms?

Back

Viruses are non-living and do not have cellular structures or metabolic processes.

Front

What is the structure of a virus?

Back

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

Front

Can viruses reproduce on their own?

Back

No, viruses cannot reproduce on their own; they need a host cell to replicate.

Front

What is a viral infection?

Back

A viral infection occurs when a virus enters a host organism and begins to replicate.