Unit 1 Target 4: Virus, Bacteria,And Protists
- 1.All members of which biological group require a host cell to reproduce?
- A.
Fungi
- B.
Bacteria
- C.
Protists
- D.
Viruses
- 2.Which statement best explains how penicillin, a common antibiotic, stops the growth of certain bacteria?
- A.
It inhibits production of the protein coat.
- B.
It inhibits replication of DNA.
- C.
It inhibits synthesis of bacterial walls.
- D.
It inhibits formation of spores.
- 3.Alec studied an unknown microscopic organism and recorded this information:- It contains DNA.- It has a cell wall, but no nucleus.What is Alec most likely studying?
- A.
Bacterium
- B.
Fungus
- C.
Protist
- D.
Virus
- 4.Bacterial cells
- A.
Have a cell wall only.
- B.
Have a cell membrane only.
- C.
Have both a cell membrane and cell wall.
- D.
Have a cell wall inside their cell membrane.
- 5.Structures found in a eukaryotic cell but not in a bacterial (prokaryotic) cell are
- A.
Cell nuclei.
- B.
Multiple chromosomes.
- C.
Membrane-bound organelles.
- D.
All of the answers
- 6.One difference between human body cells and bacterial cells is that bacterial cells have
- A.
A nucleus.
- B.
A cell wall.
- C.
No DNA.
- D.
No ribosomes.
- 7.Bacteria lack a true nucleus and membrane-bound organelles; therefore, they are classified as
- A.
Prokaryotes.
- B.
Aerobes.
- C.
Anaerobes.
- D.
Eukaryotes.
- 8.A hospital patient had a serious bacterial infection that required treatment with strong antibiotics. The patient recovered from the infection, but experienced side effects, including oral fungal infections and digestive problems. What is the most probable reason for the side effects?
- A.
The patient experienced an allergic reaction to the antibiotics.
- B.
The patient had not fully recovered from the infection.
- C.
The antibiotics killed both harmful and beneficial bacteria.
- D.
The antibiotics encouraged an overgrowth of beneficial bacteria.
- 9.Which group(s) contain organisms that can be classified as primary producers?
- A.
Bacteria only
- B.
Protists only
- C.
Bacteria and protists
- D.
Viruses and Bacteria
- 10.Which of the following might be found in the cytoplasm of a bacterial cell?
- A.
Chloroplasts
- B.
Golgi apparatus
- C.
Mitochondria
- D.
None of the answers
Questions: 17 | Attempts: 13111 | Last updated: May 4, 2017
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Sample QuestionWhich bacteria cell part goes in the box labelled a?
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Sample QuestionWhat are examples of Viruses?
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