Which of the following is not an example of a secondary metabolite produced in living organisms?
1. | Lecithin | 2. | Alkaloids |
3. | Flavonoids | 4. | Antibiotics |
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The figure given below shows the conversions of a substrate into product by an enzyme. In which one of the four options (1-4), the components of the reaction labelled as A, B, C and D are identified correctly:
Options
A | B | C | D | |
1. | Transition state |
Potential energy |
Activation energy without enzyme |
Activation energy with enzyme |
2. | Potential energy |
Transition state |
Activation energy with enzyme |
Activation energy without enzyme |
3. | Activation energy with enzyme |
Transition state |
Activation energy without enzyme |
Potential energy |
4. | Potential energy |
Transition state |
Activation energy without enzyme |
Activation energy with enzyme |
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The number of water molecules needed to hydrolyze a polymer made of 51 monomers will be:
1. 1 | 2. 25 |
3. 50 | 4. 51 |
Which of the following diagrams represents the ‘micelle’ formation by amphiphilic molecules in a non polar organic solvent?
1. | 2. | ||
3. | 4. |
In the given diagram showing two helices A and B:
1. A is left handed helix and B is right handed helix
2. A is right handed helix and B is left handed helix
3. Both are right handed helices
4. Both are left handed helices
Identify the biopolymer show in the diagram and the constituent monomer shown within the brackets:
1. Cellulose and β – D Glucose
2. Agarobiose and 3,6-anhydro-L-galactopyranose
3. Chitin and N-acetyl-D-glucosamine
4. Peptidoglycan and N-acetylmuramic acid
Consider the given two statements:
I: | Living organisms defy the Second Law of Thermodynamics. |
II: | They are able to increase their level of organization. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
Consider the given two statements:
I: | Any exposure to extreme stresses can disrupt a protein's interaction and inevitably lead to denaturation. |
II: | Protein folding consists of a balance between a substantial amount of weak intra-molecular interactions within a protein. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
Consider the given two statements:
I: | Arachidonic acid is a conditionally essential fatty acid. |
II: | It does become essential if a deficiency in linoleic acid exists. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
The simplest α amino acid is:
1. Glycine | 2. Alanine |
3. Serine | 4. Lysine |
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