Q. No.Match each item in Column I with only one item in Column II and select the correct match from the codes given:
COLUMN I
[Component]
COLUMN II
[% of the total cellular mass]
A. Protein
P. 2
B. Carbohydrates
Q. 1
C. Lipids
R. 5-7
D. Nucleic acids
S. 3
T. 10-15
U. 70-90
Codes:
A
B
C
D
1.
U
P
R
Q
2.
T
S
P
R
3.
T
P
S
R
4.
P
Q
R
S
[Component]
[% of the total cellular mass]
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I. Morphine is a strong opiate that is found naturally in opium and is mainly used as a pain medication.
II. Ricin is a toxin and a highly potent toxin produced in the seeds of the castor oil plant.
III. Concanavalin A is a lectin and is widely used in biology and biochemistry to characterize glycoproteins and other sugar-containing entities on the surface of various cells.
IV. Vinblastin is an anti-cancer drug typically used with other medications, to treat a number of types of cancer.
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
| 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 |
What level of protein structure is shown in the given diagram?
| 1. Primary | 2. Secondary |
| 3. Tertiary | 4. Quaternary |
Which of the following categories of enzyme classification are correctly matched?
| EC 1 | Oxidoreductases: catalyze oxidation/reduction reactions |
| EC 2 | Hydrolases: catalyze the hydrolysis of various bonds |
| EC 3 | Transferases: transfer a functional group (e.g. a methyl or phosphate group) |
| EC 4 | Lyases: cleave various bonds by means other than hydrolysis and oxidation |
| EC 5 | Isomerases: catalyze isomerization changes within a single molecule |
| EC 6 | Ligases: join two molecules with covalent bonds. |
1. EC 1, EC 4, EC 5 and EC 6 only
2. EC 2 and EC 3 only
3. EC 1, EC 4 and EC 6 only
4. EC 3, EC 4, EC 5 and EC 6 only
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| A | B | C | |
| 1. | Gastric lipase | Salivary amylase | Lingual lipase |
| 2. | Pepsin | Salivary amylase | Trypsin |
| 3. | Pepsin | Trypsin | Lactase |
| 4. | Rennin | Maltase | Sucrase |
| 1 | 2 | 3 | |
| 1. | 1.0 | 3.4 | 34 |
| 2. | 2.0 | 0.34 | 3.4 |
| 3. | 2.0 | 3.4 | 0.34 |
| 4. | 4.0 | 3.4 | 0.34 |
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I: a phosphate moiety links the 5’ carbon of one sugar of one nucleotide to the 1’ carbon of the sugar of the succeeding nucleotide.
II: the backbone of the strand is made up of alternate sugar and nitrogenous bases.
1. Only I is correct
2. Only Ii is correct
3. Both I and II are correct
4. Both I and II are incorrect
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