Characteristics of Life & Viruses Review

Front

Why do viruses need living hosts, such as bacteria or eukaryote cells?

Back

Viruses depend on the host cells that they infect to reproduce.

Front

Why are viruses not considered living?

Back

are not cellular.

Front

Based on cell theory, why is a virus considered nonliving?

Back

A virus cannot reproduce itself without a host

Front

Which statement describes ALL living things? Options: They are composed of one or more cells, They must reproduce sexually, They have organ systems to carry out the processes of life, They are capable of making their own food.

Back

They are composed of one or more cells.

Front

Why are viruses not included when scientists classify living things?

Back

Viruses are not made of one or more cells.

Front

Viruses CANNOT

Back

reproduce on their own.

Front

Examine the model of a viral structure shown here. Select the choice that accurately compares and contrasts the structures of viruses and cells.

Back

Both cells and proteins have capsid structures surrounding their genomes.

Front

Compare and contrast the structures of viruses and cells.

Back

Cells have specialized organelles, where viruses do not contain these structures.

Front

Examine the model of a viral structure shown here. Compare and contrast the structures of viruses and cells.

Back

Both cells and viruses have DNA/RNA.

Front

Is the ability to grow a characteristic of living organisms, viruses, or both?

Back

Living Organisms