Given below is the graph showing the effect of substrate concentration on enzyme activity. In the presence of a competitive inhibitor, when the concentration of the substrate is progressively increased:
1. | The Km value increases but the reaction will not achieve Vmax |
2. | The Km value increases but the reaction can ultimately achieve Vmax |
3. | The Km value decreases but the reaction will not achieve Vmax |
4. | The Km value decreases but the reaction can ultimately achieve Vmax |
The compound shown below:
1. is a component of the ATP molecule
2. is most commonly found in ori region of DNA
3. can have enzymatic activity
4. may be a component of the cell membrane
The zwitterion is shown by:
1. Only A
2. Only B
3. Both A and C
4. A, B and C
Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I (Type of secondary metabolite) |
Column II (example) |
I. Alkaloid II. Toxin III. Lectin IV. Drug |
1. Abrin 2. Morphine 3. Vinblastin 4. Concanavalin A |
Codes
I II III IV
1. 1 2 3 4
2. 2 1 4 3
3. 2 1 3 4
4. 1 2 4 3
Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I Column II
(Amino Acid) (Nature)
I. Tryptophan 1. Sulfur-containing
II. Cysteine 2. Aromatic
III. Valine 3. Basic
IV. Lysine 4. Neutral
Codes:
I II III IV
1. 1 2 3 4
2. 2 1 4 3
3. 2 1 3 4
4. 1 2 4 3
Given below is the diagrammatic representation of one of the categories of small
molecular weight organic compounds in the living tissues. Identify the category shown
and the one blank component X in it
Category Component
1. Cholesterol Guanin
2. Amino acid NH2
3. Nucleotide Adenine
4. Nucleoside Uracil
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched
with the category mentioned against it?
1. Thymine, Uracil - Pyrimidines
2. Uracil, Cytosine - Pyrimidines
3. Guanine, Adenine - Purines
4. Adenine, Thymine - Purines
The inhibition of succinic dehydrogenase by malonate is an example of
1. competitive inhibition
2. non-competitive inhibition
3. allosteric modulation
4. none of the above
In a 50 gm living tissue, what would be the amount of water?
(1) 15-25 gm
(2) 25-30 gm
(3) 35-45 gm
(4) 70-90 gm
Which of the following elements is present in very less quantity in the body?
(1) K
(2) Ca
(3) Mg
(4) Cu