Microorganisms Worksheet - WordMint - Free Printable

Let’s go through each question one by one and match it with the correct answer from the list on the right.

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1. The site where chemical reactions take place
→ In a cell, most chemical reactions happen in the cytoplasm. That’s the jelly-like stuff inside the cell where organelles float and reactions occur.
✔ Match: K. Cytoplasm

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2. Strand of genetic material
→ Genetic material is DNA or RNA. A single strand of that (especially when talking about chromosomes) is called a chromosome.
✔ Match: J. Chromosome

*(Note: Sometimes “strand” might make you think of DNA strand, but here the best fit from options is chromosome — since plasmid is circular DNA in bacteria, and nucleus holds chromosomes.)*

Wait — let’s double-check. Option J is “Chromosome”, which is a structure made of DNA + proteins. But sometimes “strand of genetic material” could refer to DNA itself… but none of the options say “DNA”. Looking again:

Option C is “Plasmid” — that’s circular DNA in bacteria.
Option J is “Chromosome” — long strand of DNA in eukaryotes.
But question #8 says “Circular piece of DNA found in bacteria” → that’s definitely plasmid.

So for #2, “Strand of genetic material” — likely refers to chromosome, as it’s the main carrier of genes in cells.
✔ Still: J. Chromosome

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3. Supports and strengthens cell
→ This is the job of the cell wall — found in plants, fungi, bacteria. It gives rigidity and protection.
✔ Match: E. Cell wall

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4. Surrounds a virus’s genetic material
→ Viruses have genetic material (DNA or RNA) wrapped in a protein coat (called capsid).
✔ Match: F. Protein coat

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5. Controls what enters and leaves the cell
→ That’s the cell membrane — it’s selectively permeable.
✔ Match: I. Cell membrane

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6. Sap containing water and other substances
→ In plant cells, this is stored in the vacuole — large sac filled with cell sap (water, sugars, salts, etc.).
✔ Match: B. Vacuole

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7. Controls the cell’s activity; contains chromosomes
→ That’s the nucleus — the control center of the cell, holds DNA/chromosomes.
✔ Match: D. Nucleus

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8. Circular piece of DNA found in bacteria
→ Bacteria often have small circular DNA molecules called plasmids (in addition to their main chromosome).
✔ Match: C. Plasmid

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9. Cholera is an example of which microorganism
→ Cholera is caused by a bacterium: *Vibrio cholerae*. So it’s a bacteria.
✔ Match: H. Bacteria

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10. Can only reproduce inside a host cell
→ That’s a key feature of viruses — they need a living host to replicate.
✔ Match: A. Virus

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11. Common fungal infection
→ Athlete’s foot is a very common fungal infection of the skin.
✔ Match: G. Athlete’s foot

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Now let’s write down all the matches clearly:

1. K
2. J
3. E
4. F
5. I
6. B
7. D
8. C
9. H
10. A
11. G

Final Answer:
1-K, 2-J, 3-E, 4-F, 5-I, 6-B, 7-D, 8-C, 9-H, 10-A, 11-G