Unit 4 Our Microscopic World Biology Review 2024

Front

What is the correct way to write the scientific name of a common gram negative bacteria?

Back

The correct way is Escherichia coli.

Front

What does it mean for bacteria to be prokaryotes?

Back

Prokaryotes do not contain a nucleus or membrane-bound organelles.

Front

What occurs during the lytic virus replication cycle?

Back

The virus attaches, takes over host DNA, and quickly kills (bursts) the host cell.

Front

What happens in the lysogenic virus replication cycle?

Back

The virus injects nucleic acid into the host, integrates with host DNA, and remains dormant.

Front

Why are viruses considered similar to living organisms?

Back

Viruses have genetic material (DNA, RNA) and protein.

Front

What is the definition of a prokaryote?

Back

A prokaryote is a single-celled organism that lacks a nucleus and membrane-bound organelles.

Front

What is the difference between lytic and lysogenic cycles?

Back

Lytic cycle results in the destruction of the host cell, while lysogenic cycle integrates viral DNA into the host's DNA and can remain dormant.

Front

What is genetic material in viruses?

Back

Genetic material in viruses can be either DNA or RNA.

Front

What role do spikes play in viruses?

Back

Spikes help viruses attach to host cells.

Front

What is a common characteristic of all viruses?

Back

All viruses need to infect host cells to replicate.