Q. No.
The following graphs show enzymatic activity for certain factors on x-axis and y-axis. Which of the following is correct in such regard?
1. Figure (1) ; x-axis - Potential energy , y-axis- Progress of reaction
2. Figure (2) ; x-axis - Enzymatic activity, y-axis- Temperature
3. Figure (3) ; x-axis- Velocity of reaction, y-axis-Substrate concentration
4. Figure (2) ; x-axis- pH, y-axis- Enzymatic activity
Which of the following statements is not correct about proteins?
| 1. | The first amino acid of all the proteins is also known as N-terminal amino acid |
| 2. | In proteins, only right handed helics are observed |
| 3. | α - helics are tertiary structures of proteins |
| 4. | Primary structure of a protein dictates its secondary and tertiary conformations |
Which of the following is incorrect statement with respect to carbohydrates?
| 1. | Mannose and galactose are polymers of glucose |
| 2. | Cellulose acetate is used in fabrics, cellulosic plastics and shatter proof glasses |
| 3. | Most of sugars show Benedict's test but not sucrose |
| 4. | Sucrose is composed of glucose and fructose and is a non-reducing sugar |
Following is the diagrammatic representation of three different amino acids labelled as 1, 2 and 3?
Select the option which is correct identification of amino acids 1, 2 and 3.
1 2 3
Glycine Valine Threonine
Glycine Isoleucine Aspartic acid
Glycine Alanine Serine
Glycine Serine Alanine
Give below is a diagrammatic representation which indicates the secondary structure of DNA
Choose the correct option for the structures labelled as A, B, C and D
A B C D
1. Guanine Cytosine Adenine Thymine
2. Guanine Thymine Adenine Cytosine
3. Thymine Adenine Guanine Cytosine
4. Thymine Guanine Adenine Cytosine
The elemental composition in human body in descending order is
1. Oxygen - Carbon - Nitrogen - Calcium
2. Carbon - Oxygen - Nitrogen - Calcium
3. Calcium - Carbon - Oxygen - Nitrogen
4. Oxygen - Calcium - Carbon - Nitrogen
Find the wrong statement
1. Living state is non-equilibrium steady state to be able to perform work
2. There is no uncatalysed metabolic conversion in living systems
3. Tertiary structure is absolutely necessary for the many biological activities of proteins
4. Cellulose contain complex helices where it can hold iodine
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