Mesosomes in bacteria perform the function of _?

C. Cell wall formation and DNA replication

Everyday Science · Cell Biology & Microorganisms · page 9 of 22

Bacteria MCQs with Answers

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Bacteria, Viruses & Microorganisms MCQs (81–90)

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Past paper MCQs in this chapter · See all past papers

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81.
The alcoholic fermentation is produced by _?
Correct Answer: A. Yeast
One-liner
Alcoholic fermentation is produced by Yeast, a type of fungus that converts sugars into alcohol and carbon dioxide.
82.
Which of the following type of bacteria are responsible for free living nitrogen fixation?
Correct Answer: D. Azotobacter
One-liner
Azotobacter is a free-living, aerobic soil bacterium that fixes atmospheric nitrogen independently without requiring a host plant.
83.
The volume of phage is about of the host.
Correct Answer: B. 1/1000
One-liner
The volume of a phage (bacteriophage) is about 1/1000 of the host bacterial cell.
84.
Mesosomes in bacteria perform the function of _?
Correct Answer: C. Cell wall formation and DNA replication
One-liner
Mesosomes in bacteria are folded invaginations of the plasma membrane that assist in cell wall formation and DNA replication during cell division.
85.
Small microorganisms like fungi and bacteria respire without oxygen. This process is called?
Correct Answer: B. Anaerobic Respiration
One-liner
The process by which microorganisms like fungi and bacteria respire without oxygen is called Anaerobic Respiration.
86.
In the life cycle of a bacteriophage, the lysozymes are required in which of the following steps of infection process?
Correct Answer: D. Penetration
One-liner
In the bacteriophage life cycle, lysozymes are required during the Penetration step to break down the bacterial cell wall and allow viral DNA entry.
87.
The atmospheric nitrogen in bacteria is fixed by ?
Correct Answer: C. Heterocyst
One-liner
Atmospheric nitrogen in bacteria is fixed by Heterocyst, a specialized thick-walled cell found in certain filamentous cyanobacteria.
88.
Plasmodia are found in _ only.
Correct Answer: B. Protozoa
One-liner
Plasmodia are found in Protozoa only.
89.
Bacteria that are used in producing transgenic plants, such as golden rice, is:
Correct Answer: A. Agrobacterium tumefaciens
One-liner
The bacterium used in producing transgenic plants like golden rice is Agrobacterium tumefaciens.
90.
Past Paper MCQ
Which of the following elements is fixed by cyanobacteria?
Correct Answer: B. Nitrogen
One-liner
Cyanobacteria fix atmospheric Nitrogen into a usable form for plants and other organisms.

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Bacteria MCQs with Answers

Bacteria, Viruses & Microorganisms MCQs (81–90)

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