Portage Learning Microbiology Exam 1
Questions and Answers | Latest Update |
2024/2025 | Rated A+
What is the basic structural unit of all living organisms?
The basic structural unit of all living organisms is the cell.
What is the primary function of the cell membrane?
The cell m...
What is the basic structural unit of all living organisms?
✔✔ The basic structural unit of all living organisms is the cell.
What is the primary function of the cell membrane?
✔✔ The cell membrane regulates the movement of substances in and out of the cell and provides
protection and structural support.
How do bacteria differ from viruses in terms of cellular structure?
✔✔ Bacteria are single-celled organisms with a cell wall, cell membrane, and genetic material,
while viruses are not cellular and consist only of a nucleic acid core surrounded by a protein
coat.
1
, What is the role of enzymes in microbial metabolism?
✔✔ Enzymes act as biological catalysts that speed up metabolic reactions in microorganisms.
How does the process of fermentation benefit microorganisms?
✔✔ Fermentation allows microorganisms to generate energy in the absence of oxygen by
converting sugars into various byproducts such as alcohol or lactic acid.
What is the purpose of using aseptic techniques in microbiology?
✔✔ Aseptic techniques are used to prevent contamination of microbial cultures, equipment, and
the environment by pathogens.
What are the key differences between Gram-positive and Gram-negative bacteria in terms of
their cell wall structure?
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