Which of the following is the simplest amino acid?
1. Alanine
2. Asparagine
3. Glycine
4. Tyrosine
The essential chemical components of many coenzymes are:
1. Nucleic acid
2. Carbohydrates
3. Vitamins
4. Proteins
Which one of the following structural formulae of two organic compounds are correctly identified along with its related function?
1. A- Triglyceride – a major source of energy
2. B- Uracil – a component of DNA
3. A- Lecithin – a component of cell membrane
4. B- Adenine – a nucleotide that makes up nucleic acids
The curve given below shows enzymatic activity with relation to three conditions (pH, temperature and substrate concentration) what do the two axis (X and Y) represent?
X-axis |
Y-axis |
|
(a) |
Temperature |
Enzyme activity |
(b) |
Substrate concentration |
Enzyme activity |
(c) |
Enzyme activity |
Temperature |
(d) |
Enzyme activity |
pH |
1. (a)
2. (b)
3. (c)
4. (d)
How many groups of the methane can be substituted to form an amino acid Glycine.
1.4
2.3
3.2
4.1
How many types of proteinaceous amino acids are there?
1.20
2.more than 20
3.less than 20
4.Both 1 and 3
Which group of the amino acid contributes essentially to the chemical and physical properties of amino acids?
1.Amino group
2.Carboxyl group
3.Alkyl group (R group)
4.All of these
Which of the following is true about Lipids
1.It is a polymer of Fatty acids and Glycerol
2.Water soluble
3.Fatty acids can be saturated or unsaturated
4.both 1 and 3
Which of the following is true about Cholesterol?
1. It contains four fused hydrocarbon rings
2. Organic molecule
3. Hydroxyl group is present
4. All of these
Which of the following is incorrect.
1.Nucleotides- Nucleosides = phosphate
2.Nucleosides + Phosphate = Nucleotides
3.Nucleosides – Nucleotides = Phosphate
4.Both 1 and 2