CBSE Class 10 Science sample paper 2023-24: question 23(a)
From the official CBSE sample question paper for 2023-24, section B, question 23(a), for 2 marks. Try it first; the hints and our step-by-step solution are below.
Q23(a) · 2 marks · Very short answerLife Processes
What is the purpose of making urine in the human body? Name the organs that stores and releases the urine.
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 harmful wastes does the body make from protein breakdown?
Hint 2
Trace the path of urine after it leaves the kidneys through the ureters.
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.
- ½ mark
Purpose: Urine is made to remove nitrogenous wastes such as urea and uric acid,
- ½ mark
which are filtered out of the blood by the kidneys.
- ½ mark
Organ that stores urine: urinary bladder.
- ½ mark
Organ through which urine is released: urethra.
Answer: To filter nitrogenous wastes (urea, uric acid) from blood; stored in urinary bladder; released through urethra
Where the marks are
- Mentions nitrogenous waste (urea/uric acid) (0.5 mark)
- Filtered from blood (0.5 mark)
- Urinary bladder stores urine (0.5 mark)
- Urethra releases urine (0.5 mark)
Revise the chapter
- Chapter: Life Processes (notes, formulas, where marks are lost and every past question)
More questions from Life Processes
- Sample paper 2023-24, Q23(b) · 2 marksWhy do arteries have thick and elastic walls whereas veins have valves?
- 2023 board paper, set 31/1/1, Q8 · 1 markAn organism which breaks down the food material outside the body and then absorbs it is
- 2023 board paper, set 31/1/1, Q9 · 1 markConsider the following statements about small intestine and select the one which is NOT correct :
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