Carbohydrates are commonly found as starch in plant storage organs. Which of the

following five properties of starch (A-E) make it useful as a storage material?

(A) Easily translocated 

(B) Chemically non-reactive

(C) Easily digested by animals

(D) Osmotically inactive

(E) Synthesized during photosynthesis

The useful properties are 

1. (B) and (C)

2. (B) and (D)

3. (A), (C) and (E)

4. (A) and (E)

Subtopic:  Carbohydrates |
 52%
NEET - 2008
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Jute fibres deteriorate quickly because

(1) cellulose content is high

(2) lignin content is high

(3) cellulose content is low

(4) lignin content is low

Subtopic:  Carbohydrates |
AIIMS - 2009
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Which one of the following is a non-reducing carbohydrate?

1. Maltose

2. Sucrose

3. Lactose

4. Ribose 5-phosphate

Subtopic:  Carbohydrates |
 82%
AIPMT - 2014
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Identify the substances having a glycosidic bond and peptide bond, respectively in their structure:

1.  Glycerol, trypsin

2.  Cellulose, lecithin

3.  Inulin, insulin

4.  Chitin, cholesterol 

Subtopic:  Carbohydrates |
 62%
From NCERT
NEET - 2020
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Match the following:

Column I Column II
(a) Aquaporin (i) Amide
(b) Asparagine (ii) Polysaccharide
(c) Abscisic acid (iii) Polypeptide
(d) Chitin (iv) Carotenoids
 

Options: (a) (b) (c) (d)
1. (iii) (i) (iv) (ii)
2. (ii) (iii) (iv) (i)
3. (ii) (i) (iv) (iii)
4. (iii) (i) (ii) (iv)

Subtopic:  Proteins | Carbohydrates |
 79%
NEET - 2020
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Match List -I with List - II.

List-I List-Ii
(a) Protein
(b) Unsaturated fatty acid 
(c) Nucleic acid
(d)Polysaccharides
I. C-C double bonds
II. Phosphodiester bonds
III. Glycosidic bonds
IV. Peptide bonds

Choose the correct answer from the options given below:

Options: (a) (b) (c) (d)
1. ii i iv iii
2. iv iii i ii
3. iv i ii iii
4. i iv iii ii

Subtopic:  Nucleic Acid: Nucleotides | Proteins | Carbohydrates | Lipids |
 84%
From NCERT
NEET - 2021
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Regarding polysaccharides:
I: Cellulose does not contain complex helices.
II: Inulin is a polymer of fructose.
III: Left end of glycogen is the reducing end
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  Carbohydrates | Carbohydrates: Starch & Glycogen | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 71%
From NCERT
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Consider the given two statements:
Statement I: Iodine test can detect the presence of starch but not of cellulose in a given sample.
Statement II: Starch forms helical secondary structure and can hold iodine molecules while cellulose does not contain complex helices and hence cannot hold iodine.
 
1. Both Statement I and Statement II are correct and Statement II correctly explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic:  Carbohydrates | Carbohydrates: Starch & Glycogen |
 88%
From NCERT
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A. Cellulose and Starch can hold I2 due to formation of helical secondary structures 
B. Proteins transport nutrient across cell membrane and fight infectious organisms 
C. At high-temperature, enzymes get damaged while inorganic catalysts work efficiently 
D. In animal tissue, different drugs, pigments, essential oil, magnesium, O2 compounds are noticed
E. DNA and RNA have three chemically distinct components - heterocyclic ring, pentose monosaccharide and phosphate 
Out of the statements given above about biomolecules, which of the statements are not correct?
1. D and E only 
2. A and D only 
3. A, B and D only 
4. B, E and C only 
Subtopic:  The DNA | Proteins | Carbohydrates |
 61%
From NCERT
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The given figure represents structure of glycogen/amylopectin. Identify A, B, C and D:
A B C D
1. Reducing end Non reducing end α [1→4] linkage α [1→6] linkage
2. Non reducing end Reducing end α [1→4] linkage α [1→6] linkage
3. Reducing end Non reducing end α [1→6] linkage α [1→4] linkage
4. Non reducing end Reducing end α [1→6] linkage α [1→4] linkage
Subtopic:  Carbohydrates | Carbohydrates: Glycosidic Bond & Disaccharide | Carbohydrates: Starch & Glycogen |
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