Consider statements about microorganisms: 1. Bacteria reproduce asexually by binary fission. 2. Fungi reproduce by spore formation. 3. Viruses can reproduce independently. Which are correct? MCQ with Answer and Explanation

Consider statements about microorganisms: 1. Bacteria reproduce asexually by binary fission. 2. Fungi reproduce by spore formation. 3. Viruses can reproduce independently. Which are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer: Option A
Solution (By JKExamLibrary)
Bacteria are prokaryotes that primarily reproduce asexually through binary fission, a process where a single cell divides into two identical daughter cells. Fungi reproduce both sexually and asexually, but asexual reproduction commonly occurs through the formation and dispersal of spores (like conidia or sporangiospores). Viruses are obligate intracellular parasites; they lack the metabolic machinery for independent reproduction and must hijack a host cell's machinery to replicate. Thus, statements 1 and 2 are correct.

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The scientist who discovered the bacterium that causes plague (Yersinia pestis) was:
A. Louis Pasteur
B. Robert Koch
C. Edward Jenner
D. Alexandre Yersin

Correct Answer: Option D


Explanation:
Alexandre Yersin, a Swiss-French bacteriologist, discovered Yersinia pestis in 1894 during the Hong Kong plague epidemic. Koch discovered TB, Pasteur developed vaccines.

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Which of the following is an example of a non-living thing that can grow by accretion?
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Correct Answer: Option B


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Which of the following tissues in plants is responsible for transportation of water and minerals?
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Correct Answer: Option D


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