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General ScienceMediumAsked in: NDA · NDA-II 2017, GAT

Intake of which one of the following food components should be minimized by patients having Gouty Arthritis due to elevated serum uric acid level?

  1. A.Food fibres
  2. B.Nucleic acids
  3. C.Lipids
  4. D.Carbohydrates

Correct answer

B. Nucleic acids

Explanation

The correct answer is B, Nucleic acids. Uric acid is the end product of the breakdown of purines, which come from the nucleic acids DNA and RNA, so gout patients are told to cut down purine-rich food.

Gout is a form of arthritis in which high uric acid in the blood forms sharp crystals of sodium urate in the joints, often first in the big toe, causing sudden pain and swelling. Foods rich in nucleic acids and purines include organ meats such as liver and kidney, red meat, some seafood such as sardines and anchovies, and yeast extracts; alcohol, especially beer, also raises uric acid. Plenty of water and a low-purine diet help.

A is wrong because dietary fibre is not broken down into uric acid and is part of a healthy diet.

C is wrong because lipids are broken down into fatty acids and glycerol, not purines.

D is wrong because carbohydrates are broken down mainly into glucose, which does not form uric acid.

Exam tip: gout – uric acid crystals in joints; uric acid comes from purines, which come from nucleic acids.

Practice Questions

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Q1.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2022, GS Paper IMedium

Which of the following are nitrogen-fixing plants?

1. Alfalfa

2. Amaranth

3. Chickpea

4. Clover

5. Purslane (Kulfa)

6. Spinach

Select the correct answer using the code given below:

  1. A.1, 3 and 4 only
  2. B.1, 3, 5 and 6 only
  3. C.2, 4, 5 and 6 only
  4. D.1, 2, 4, 5 and 6
Show answer
Correct answer: A. 1, 3 and 4 only

Alfalfa, chickpea and clover are legumes, and legumes fix nitrogen. Plants of the legume family (Fabaceae) carry root nodules that house Rhizobium bacteria.

Q2.General ScienceAsked in: UPSC CAPF · CAPF 2017, Paper IMedium

The mass number of an element is NOT changed when it emits

  1. A.Alpha and Beta radiations only
  2. B.Alpha and Gamma radiations only
  3. C.Beta and Gamma radiations only
  4. D.Alpha, Beta and Gamma radiations
Show answer
Correct answer: C. Beta and Gamma radiations only

Neither beta nor gamma emission changes the total number of protons and neutrons in a nucleus, so the mass number stays the same.

Q3.General ScienceAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which one among the following statements about facilitated transport in plants is correct?

  1. A.All passive transports are types of facilitated transport.
  2. B.Facilitated transport is an example of active transport.
  3. C.Water moves across plasma membrane by active transport.
  4. D.Facilitated transport requires assistance of carrier proteins.
Show answer
Correct answer: D. Facilitated transport requires assistance of carrier proteins.

In facilitated transport, molecules cross the membrane with the help of membrane proteins, while still moving down their concentration gradient.

Q4.General ScienceAsked in: UPSC CAPF · CAPF 2017, Paper IMedium

Who among the following has coined the term 'Quark', the fundamental particles that make up protons and neutrons in an atomic nucleus ?

  1. A.Richard Feynman
  2. B.Murray Gell-Mann
  3. C.Albert Einstein
  4. D.Niels Bohr
Show answer
Correct answer: B. Murray Gell-Mann

The American physicist Murray Gell-Mann proposed quarks in 1964 and gave them their name. Gell-Mann, and independently George Zweig, suggested that protons, neutrons and other such particles are built from smaller units.