Viruses Study Guide BI


Viruses Study Guide


Are viruses made of cells?
Do viruses make their own energy?
Can viruses make their own proteins?
Why are nonliving viruses included in a study of biology?
When is the only time that viruses are active?
What 2 things are found in the core of a virus?
What is the coating around a virus’s core made of?
What is the protective outer coat of a virus called?
Name 3 things that the envelope around some viruses can be made of?
Do viruses contain cell organelles such as cytoplasm, ribosomes, mitochondria, or chloroplasts?
What is the TMV virus & what does it attack?
How does a tobacco mosaic virus compare in size to a bacterium?
Can the TMV be crystallized? How is this helpful?
In nanometers, how large is the biggest known virus?
What viruses use reverse transcriptase to make DNA from RNA?
Viroids contain only what?
Prions are composed of only what substance?
A protein coat & a nucleic acid core makes up a typical what?
When is the only time viruses reproduce?
Sketch a bacteriophage & label the nucleic acid — DNA or RNA.
Do viruses have a nucleus or organelles?
Are viruses cellular?
Animal viruses only attack animal cells because they recognize what on the host cell?
In what viral life cycle does the viral DNA become part of the host cell’s DNA?
___________ don’t work on viruses because viruses don’t perform certain metabolic processes.
Name  several viral diseases of humans.
Name several viruses that have been linked to cancer.
Does Ebola virus cause cancer?
Many new viruses are emerging because of which activity of humans?

Bacteria & Virus Study Guide B1



Bacteria & Virus Study Guide

What color do Gram + bacteria stain?   Gram-?

How do bacterial cells differ from other types of cells?

How are chickenpox & shingles alike?

Why do people get the flu more than once?

What scientist discovered that viruses aren’t cellular?

Name several things used to classify viruses.

What are the 3 shapes for bacteria & give the name for each shape?

Can bacteria survive without oxygen? with oxygen?

How does the size of bacterial cells compare to the size of eukaryotic cells?

If a virus enters the Lysogenic cycle, can it change to the lytic cycle? Explain.

What 2 things make up a virus?

Why don’t antibiotics kill some bacteria?

What is necessary for a virus to reproduce?

Are viruses cellular?

Which bacteria are least responsive to antibiotics — Gram+ or Gram-?

What are prions?

What is a capsid?

How does forming an endospore help bacteria?

Describe the DNA of a bacterium.

What are pili?

What whiplike projections do some bacteria for movement use?

What occurs during conjugation?

What are retroviruses & what enzyme do they contain?

What is a viroid?

A protein coat & a nucleic acid core make up what typical structure?

In what cycle(s) does viral DNA get injected into host cells?

Is the Ebola virus linked to cancer?

Where would you find RNA in retroviruses?


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