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Bennedict’s reagent test is conducted to confirm the presence of
Options
(a) polysachharides like starch
(b) lipids
(c) reducing sugars
(d) proteins
Correct Answer:
reducing sugars
Explanation:
All those sugars which have free aldehyde or ketone group are called reducing sugars. These are able to reduce cupric ions (Cu⁺²) into cuprous ions (Cu⁺). The two common test are Benedict’s test and Fehling’s test. Both tests employ alkaline solution of copper sulphate which is blue in colour with reducing sugar it gives orange to brick red precipitation. Galactose is a reducing sugar. It gives brownish red precipitate wiht Fehling reagent and wiht Benedict’s reagent it gives yellow, red or green precipitate confirming the presence of sugar. Sucrose, starch are non-reducing sugars.
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Topics: Cell Structure and Functions
(413)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Hydra can paralyse prey by
- In the light of carrier concept the transport of ion across the membrane is
- Metamorphosis of tadple is due to which of the following hormone?
- Graafian follicies are formed from
- Earthworm and cockroach have which of the following thing in common?
Topics: Cell Structure and Functions (413)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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