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Questions and Answers
True or false: Bacteria can only reproduce by entering a living cell.
True or false: Bacteria can only reproduce by entering a living cell.
False (B)
Which of the following is true about viruses?
Which of the following is true about viruses?
- They are unicellular organisms.
- They can reproduce outside of a living cell.
- They are combated by antibiotics.
- They are made up of nucleic acid and protein. (correct)
The human body combats viruses by producing an antiviral protein, ______.
The human body combats viruses by producing an antiviral protein, ______.
interferon
True or false: Antiviral drugs are easy to develop and widely available.
True or false: Antiviral drugs are easy to develop and widely available.
How do retroviruses differ from other viruses?
How do retroviruses differ from other viruses?
Bacteria consist of a circular DNA molecule surrounded by cytoplasm, plasmatic membrane, and a ______.
Bacteria consist of a circular DNA molecule surrounded by cytoplasm, plasmatic membrane, and a ______.
Which of the following is true about bacteria?
Which of the following is true about bacteria?
Drugs to fight viruses are ______ to develop.
Drugs to fight viruses are ______ to develop.
True or false: All viruses damage the organism they infect by producing other viruses.
True or false: All viruses damage the organism they infect by producing other viruses.
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Study Notes
Virus:
- A virus is an infective and disease producing agent made up of nucleic acid enclosed in a protein covering.
- Viruses can only reproduce by entering a living cell.
- The human body combats viruses by producing an antiviral protein, interferon.
- Retroviruses have an RNA genome and can produce DNA from this RNA.
- Drugs to fight viruses are difficult to develop.
- Some viruses gradually develop resistance to antiviral drugs.
- Viruses damage the organism by producing other viruses. Bacteria:
- Bacteria are unicellular organisms that can have various forms and sizes.
- Bacteria consist of a circular DNA molecule surrounded by cytoplasm, plasmatic membrane, and a cell wall.
- Bacteria can reproduce in two different ways: simple binary division and gemmation.
- Bacteria can be dangerous/harmful/lethal or helpful/useful/harmless.
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