Biology Virus Lesson

Multiple Choice

The most abundant organisms on Earth are?

• Humans

• Ants

• Microbes

• Insects

Multiple Choice

Which statement is true about viruses?

• Viruses can eat and metabolize food.

• Viruses can reproduce on their own at any time.

• Viruses contain DNA, so they are alive.

• Viruses can reproduce only using a host cell.

Multiple Choice

What do viruses need to replicate?

• Bacteria

• A host cell

• Genetic material

Multiple Choice

Viruses are made up of

• Nucleus, membrane

• Capsid, nucleus

• Capsid, nucleic acid

• Mitochondria, nucleus

Multiple Choice

Some viruses have a additional layer called Capsid

• True

• False

Multiple Choice

A capsid is

• a structure that eats food

• the type of virus that attacks bacteria

• the genetic material of a virus

• the protein coat of a virus

Multiple Choice

The genetic material of a virus is in the form of

• Only RNA

• Only DNA

• Both RNA and DNA

• Either RNA or DNA

Multiple Choice

What is a bacteriophage?

• A virus that infects humans only

• A virus that infects plants only

• A virus that infects bacteria

• A virus that infects other virus

Multiple Choice

What is the 1st step of virus infection?

• Attachment to host cell

• Enter the host cell

• Recognize the host cell

• Attack the body

Multiple Choice

How does a virus cause a person to develop the common cold?

• invades the host cell to reproduce

• removes energy from the host cell

• produces toxins in the host cell

• protects the host cell from bacteria

Multiple Choice

Viruses can attack ?

• humans

• plants

• bacteria

• all of these

Multiple Choice

Which of the following require a host cell because they are NOT able to make proteins own their own?

• Virus

• Bacteria

• Both virus and bacteria

Multiple Choice

What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)?

• tail

• nucleus

• capsid

• RNA/DNA

Multiple Choice

One important way to control the spread of viruses in through

• the use of vaccines

• drinking a lot of tea

• the use of other types of bacteria

• the use of antibiotics

Multiple Choice

Can a virus be cured with antibiotics?

• Yes

• No

Multiple Choice

When a new viral infection appears in a population, scientists usually try to develop a vaccine against the virus. Which substances would most likely be contained in the new vaccine?

• live bacteria that ingest viruses

• white blood cells from an infected individual

• weakened viruses associated with the infection

• a variety of microbes that will attack the virus

Multiple Choice

Bacteria have many roles in our world.  However, what is their #1 role from the list provided?

• Decomposers

• Make medicines

• Clean up plastics

• Make us food

Multiple Choice

Bacteria are the only living things that are prokaryotes.  What does this mean?

• Have a nucleus

• They are really small

• Don't have a nucleus

• They can move

Multiple Choice

Which of the following is true?

• Viruses and bacteria are both prokaryotes.

• Bacteria are eukaryotes and viruses are prokaryotes.

• Some bacteria are prokaryotes and some are eukaryotes.

• All bacteria are prokaryotes.

Multiple Choice

How many cells does one bacteria have?

• two

• one

• three

• Multi-Celled

Poll

Sphere shaped bacteria are called

• bacilli

• cocci

• spirilla

• Placid

Multiple Choice

Bacteria share similar structures that plants have.  What are two of these structures?

• Nucleus & Cell Wall

• Cell Wall & Tail

• Cell Wall & Cell Membrane

• Cell Membrane and Nucelus

Multiple Choice

When antibiotics were first developed, most infectious diseases could be controlled by them. Today, certain bacteria are resistant to many antibiotics. One possible explanation for this change is that

• the antibiotics killed most of the bacteria that did not have a genetic variation for resistance

• the bacteria needed to change in order to produce more antibiotics

• some of the bacteria learned how to resist the antibiotics

• antibiotics have become weaker over the years

Multiple Choice

To what would the phrase "is not a cell but has the ability to reproduce within a living cell" best describe?

• Virus

• Bacteria

• Yeast

• Algae

Multiple Choice

Bacteria is larger (in size) than virus

• True

• False

Multiple Choice

Are single-cell organisms

• Virus

• Both bacteria and virus

• Bacteria

Multiple Choice

Contain genetic information in the form of DNA or RNA

• Virus and Bacteria

• Bacteria

• Virus

Fill in the Blanks

Bacteria can move using whip-like structure called

Multiple Choice

All kinds of bacteria can make their own food

• True

• False

Multiple Choice

Bacteria are known to make medicine.  What do they make for people who suffer from diabetes?

• Vaccine

• Insulin

• Antibiotics

• Paracetamol

Multiple Choice

Which of the following is true for both bacteria and viruses?

• both contain genetic material

• can be killed using antibiotics

• have a cell membrane

• have a protien coat