- 1(current)
Q. No.| 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 |
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
Please attempt this question first.
Hints
Please attempt this question first.
Match column I with column II and select the correct option.
Column I Column II
a. Phosphate and hydroxyl group of (i) Peptide bond
sugar in a nucleotide
b. Polymer of amino acids (ii) Glycosidic bond
c. Polysaccharides (iii) Hydrogen bond
d. Adenine and thymine (iv) Ester bond
in a DNA
1. a(ii), b(iii), c(iv), d(i)
2. a(ii), b(iv), c(iii), d(i)
3. a(iv), b(i), c(ii), d(iii)
4. a(iv), b(i), c(iii), d(ii)
Column I Column II
a. Phosphate and hydroxyl group of (i) Peptide bond
sugar in a nucleotide
b. Polymer of amino acids (ii) Glycosidic bond
c. Polysaccharides (iii) Hydrogen bond
d. Adenine and thymine (iv) Ester bond
in a DNA
1. a(ii), b(iii), c(iv), d(i)
2. a(ii), b(iv), c(iii), d(i)
3. a(iv), b(i), c(ii), d(iii)
4. a(iv), b(i), c(iii), d(ii)
Subtopic: The DNA | Amino Acids | Zwitter ion & Peptide Bond | Carbohydrates: Glycosidic Bond & Disaccharide |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Read the following given statements with respect to nucleic acids.
How many of the above statements are incorrect?
1. One
2. Two
3. Three
4. Four
| (a) | DNA possesses ribose sugar in its structure. |
| (b) | Thymine bonds with cytosine through two hydrogen bonds. |
| (c) | The rise per base pair in B-DNA would be 3.4 Å. |
| (d) | The pitch of B-DNA would be 34 nm. |
How many of the above statements are incorrect?
1. One
2. Two
3. Three
4. Four
Subtopic: The DNA |
From NCERT
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Hints
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- 1(current)
Q. No.
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