ICSE Class 10 Microbes in Human Welfare — Mock Test (2027)
Free online mock test for Microbes in Human Welfare (ICSE Class 10 Botany) — 74 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Microbes in Human Welfare chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
-
1.Consider the following statements about methanogens: 1. They grow anaerobically on cellulosic material. 2. They produce methane along with CO2 and H2. 3. Methanobacterium is one such common bacterium. 4. They are present in the rumen of cattle. Which statements are correct?
- A.All four
- B.Only 1, 2 and 3
- C.Only 2, 3 and 4
- D.Only 1 and 4
-
2.The dough used for making bread is fermented using:
- A.Saccharomyces cerevisiae (baker's yeast)
- B.Lactobacillus
- C.Penicillium notatum
- D.Acetobacter aceti
-
3.Three water samples - river water, untreated sewage and secondary effluent - had BOD values of 20 mg/L, 8 mg/L and 400 mg/L (samples A, B and C respectively). Assuming river water is relatively clean, which sample is the untreated sewage and which is the most polluted?
- A.Sample C (400 mg/L) is untreated sewage and is the most polluted
- B.Sample B (8 mg/L) is untreated sewage and is the most polluted
- C.Sample A (20 mg/L) is untreated sewage and is the most polluted
- D.Sample B (8 mg/L) is untreated sewage; Sample A is the most polluted
-
4.All of the following bioactive molecules are correctly matched with their microbial source EXCEPT:
- A.Cyclosporin A - Trichoderma polysporum
- B.Statins - Monascus purpureus
- C.Streptokinase - Streptococcus
- D.Citric acid - Acetobacter aceti
-
5.![biogas_plant.png]() In the biogas plant shown, the inverted dome-shaped structure that sits over the slurry and is labelled with the gases CH4 + CO2 is the part that rises as gas accumulates. What is this structure called in the figure?
- A.Gas-holder
- B.Digester
- C.Sludge outlet
- D.Inlet chamber
Want the full 74-question test with instant marking & AI feedback?
Sign up free →