CBSE Class 10 Science sample paper 2023-24: question 8
From the official CBSE sample question paper for 2023-24, section A, question 8, for 1 mark. Try it first; the hints and our step-by-step solution are below.
Q8 · 1 mark · MCQLife Processes
Generally food is broken and absorbed within the body of organisms. In which of the following organisms is it done outside the body?
- (A)Amoeba
- (B)Mushroom
- (C)Paramoecium
- (D)Lice
Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2023-24.
Hints
Open one hint at a time and try again before the next.
Hint 1
Which mode of nutrition involves secreting enzymes outside the body?
Hint 2
Fungi show this mode of nutrition.
Step-by-step solution
Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.
Saprophytes such as fungi release digestive enzymes onto their food. The food is broken down outside the body and then absorbed.
- 1 mark
Mushroom is a saprophytic fungus. Amoeba and Paramoecium digest food inside food vacuoles, and lice are parasites that suck blood. So the answer is option (B).
Answer: Mushroom, option (B)
Where the marks are
- Identifies mushroom (saprophytic nutrition) (1 mark)
Revise the chapter
- Chapter: Life Processes (notes, formulas, where marks are lost and every past question)
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