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1 | |
Which of the following are characteristics of eukaryotic cells? |
| | A) | they have a complex cell structure containing a nucleus and specialized organelles in the cytoplasm |
| | B) | they have a simple cell structure with no nucleus |
| | C) | they are noncellular and the nucleic acid is surrounded by a protein coat |
| | D) | they have an uncomplicated and basic structure that contains no organelles in the cytoplasm |
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2 | |
The most common way to classify bacteria is according to their |
| | A) | ability to retain certain dyes. |
| | B) | ability to grow in the presence or absence of air. |
| | C) | biochemical reactions. |
| | D) | shape. |
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3 | |
Which of the following is an example of a microorganism that is classified a prokaryotic cell? |
| | A) | fungi |
| | B) | virus |
| | C) | bacteria |
| | D) | parasite |
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4 | |
Examples of viruses include |
| | A) | gonorrhea, meningitis, strep throat, and gastroenteritis. |
| | B) | tinea pedis, ringworm, thrush, and vaginal yeast infections. |
| | C) | malaria, amebic dysentery, and trichomoniasis vaginitis. |
| | D) | chickenpox, croup, hepatitis, and influenza. |
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5 | |
Which of the following is characteristic of a subcellular microorganism? |
| | A) | a complex cell structure containing a nucleus |
| | B) | a highly structured organism with specialized organelles in the cytoplasm |
| | C) | a noncellular structure in which the nucleic acid is surrounded by a protein coat |
| | D) | a simple cell structure with no nucleus and no organelles in the cytoplasm |
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6 | |
Which of the following are characteristics of viruses? |
| | A) | they are among the smallest infectious agents and cannot be seen with a regular microscope |
| | B) | they are reproduced by budding and do not cause disease in humans |
| | C) | they are single-celled organisms that reproduce very quickly |
| | D) | they are found in soil and water and most do not cause disease in humans |
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7 | |
An example of a subcellular microorganism is a |
| | A) | virus. |
| | B) | bacteria. |
| | C) | protozoan. |
| | D) | fungi. |
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8 | |
A bacteria that is spherical, round, or ovoid is a |
| | A) | vibrio. |
| | B) | coccus. |
| | C) | spirillum. |
| | D) | bacillus. |
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9 | |
Which of the following are characteristics of prokaryotic cells? |
| | A) | they are noncellular and the nucleic acid is surrounded by a protein coat |
| | B) | they are simple-structured with a single chromosome and no organelles |
| | C) | they are highly structured and contain a nucleus |
| | D) | they are a complex cell structure and have specialized organelles in the cytoplasm |
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10 | |
Bacteria that are comma-shaped are |
| | A) | spirillum. |
| | B) | vibrio. |
| | C) | coccus. |
| | D) | bacillus. |
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