Biology Viruses And Bacteria

2.

Where are viruses found?

Almost everywhere
Everywhere

Correct Answer

A. Everywhere

Explanation

only bacteria is found almost anywhere because they aren't found in the cell itself.

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5

3.

What are types of bacteria?

Tetanus
Authorax
Salmonella
Streptococci
Pneumonia
Ecoil
Staphlorocco

Correct Answer(s)

A. Tetanus
A. Salmonella
A. Streptococci
A. Pneumonia
A. Staphlorocco

Explanation

The given answer lists various types of bacteria, including tetanus, salmonella, streptococci, pneumonia, and staphlorocco. These are all different species of bacteria that can cause various infections and diseases in humans and animals. Tetanus is caused by the bacterium Clostridium tetani, salmonella is caused by various species of the Salmonella bacteria, streptococci refers to a group of bacteria belonging to the Streptococcus genus, pneumonia is caused by different types of bacteria such as Streptococcus pneumoniae, and staphlorocco likely refers to Staphylococcus aureus, a common bacteria that can cause infections.

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4.

What do all viruses have?

Protein Coat (capsid)
DNA or RNA
Bacilli
Flagella

Correct Answer(s)

A. Protein Coat (capsid)
A. DNA or RNA

Explanation

only some bacteria have flagella not viruses

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7

5.

How do viruses move?

By fluid blood
By hand contact
by the use of flagella

Correct Answer(s)

A. By fluid blood
A. By hand contact

Explanation

only bacteria have flagellum viruses dont

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6.

Which of the following statements about viruses and bacteria is correct?

Both viruses and bacteria are living organisms.
Viruses are smaller than bacteria.
Both viruses and bacteria can be treated with antibiotics.
Viruses can reproduce independently, while bacteria require a host cell.

Correct Answer

A. Viruses are smaller than bacteria.

Explanation

Viruses are significantly smaller than bacteria. They are typically measured in nanometers, while bacteria are measured in micrometers. This size difference reflects their fundamental structural differences: viruses are simple particles consisting of genetic material and a protein coat, while bacteria are single-celled organisms with a more complex cellular structure.

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7.

How does bacteria move?more then one answer

Move by rushing fluid
Move by flagellum
By attaching itself to cells

Correct Answer(s)

A. Move by rushing fluid
A. Move by flagellum

Explanation

Bacteria can move in multiple ways. One way is by rushing fluid, where they use the flow of liquid to propel themselves forward. Another way is through the use of flagella, which are whip-like structures that rotate and allow bacteria to swim. These two mechanisms enable bacteria to move efficiently and explore their environment.

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8.

How does bacteria get transmitted?

Hands
Insects
Cold weather
Microwaved food unproperly

Correct Answer(s)

A. Hands
A. Insects
A. Microwaved food unproperly

Explanation

Bacteria can be transmitted through various means, including hands, insects, and improperly microwaved food. Hands can easily pick up bacteria from contaminated surfaces and transfer them to other objects or people through touch. Insects, such as flies or cockroaches, can carry bacteria on their bodies or in their digestive systems, spreading them when they come into contact with food or surfaces. Improperly microwaved food can also harbor bacteria if it is not heated to a high enough temperature to kill them. Therefore, all three options mentioned in the answer can contribute to the transmission of bacteria.

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9.

How does a virus reproduce?

With a female virus
By controlling a cell to make copies
They cant reproduce

Correct Answer

A. By controlling a cell to make copies

Explanation

Viruses reproduce by taking control of a host cell and using its machinery to produce more copies of themselves. They inject their genetic material into the host cell, which then follows the virus's instructions to create new viral components. These components are assembled into complete viruses, which are released from the host cell to infect other cells and continue the cycle of reproduction. This process allows viruses to spread and cause infections in living organisms.

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3

10.

Unlike bacteria, viruses cannot reproduce on their own and require a __________ cell to replicate.

Correct Answer
Host, host

Explanation
Viruses are essentially genetic material (DNA or RNA) enclosed in a protein coat. They lack the cellular machinery necessary for independent reproduction. To replicate, viruses must infect a living host cell and hijack its machinery to produce new viral particles. This dependence on a host cell is a key distinction between viruses and bacteria, which can reproduce independently through processes like binary fission.

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11.

An heterotroph is a bacteria which gets its energy from

Correct Answer
autotrophs
eating

Explanation
Heterotrophs are organisms that cannot produce their own food and rely on consuming other organisms for energy. In this case, the bacteria mentioned is a heterotroph that obtains its energy by consuming autotrophs. Autotrophs, on the other hand, are organisms capable of producing their own food through processes like photosynthesis. Therefore, the bacteria in question obtains its energy by feeding on autotrophs.

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12.

How does a virus get energy?

It produces energy
From host cell
They dont need it

Correct Answer

A. From host cell

Explanation

A virus gets energy from the host cell because it lacks the necessary cellular machinery to produce energy on its own. Once inside a host cell, the virus hijacks the cell's metabolic processes and utilizes its resources to replicate and produce new viral particles. This energy acquisition from the host cell is crucial for the virus's survival and propagation within the host organism.

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13.

How does bacteria get energy

They dont need it
Binary fission
Conjuction
Mitosis

Correct Answer(s)

A. Binary fission
A. Conjuction

Explanation

Bacteria obtain energy through a process called binary fission, which is a form of asexual reproduction. During binary fission, a single bacterium divides into two identical daughter cells. This process allows bacteria to multiply and increase their population. Conjugation, on the other hand, is a method of genetic exchange between bacteria, but it does not directly provide them with energy. Mitosis is a process that occurs in eukaryotic cells, not bacteria, where a single cell divides into two identical daughter cells.

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Biology Viruses And Bacteria

What are examples of Viruses?

Quiz Preview

Where are viruses found?

What are types of bacteria?

What do all viruses have?

How do viruses move?

Which of the following statements about viruses and bacteria is correct?

How does bacteria move?more then one answer

How does bacteria get transmitted?

How does a virus reproduce?

Unlike bacteria, viruses cannot reproduce on their own and require a __________ cell to replicate.

An heterotroph is a bacteria which gets its energy from

How does a virus get energy?

How does bacteria get energy