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 Nucleotide Adenine 2 Nucleoside Uracil 3 Cholesterol Guanin 4 Amino acid NH2
Option 1
Option 2
Option 3
Option 4
Carbohydrates, the most abundant biomolecules on earth, are produced by:
Fungi, algae and green plants cells
All bacteria, fungi and algae
Some bacteria, algae and green plant cells
Viruses, fungi and bacteria
The given graph shows the effect of substrate concentration on the rate of reaction of the enzyme green gram phosphatase. What does the graph indicate?
The rate of enzyme reaction is directly proportional to the substrate concentration
Presence of an enzyme inhibitor in the reaction mixture
Formation of an enzyme-substrate complex
At higher substrate concentration the pH increases
The largest biomolecule in a living cell.
Glycogen
Protein
Cholesterol
Deoxyribonucleic acid
The graph shows the rate of an enzyme reaction at different levels of acidity or alkalinity (pH). From the graph, what is the optimum pH for this enzyme?
pH 2
pH 7
pH 10
pH 8
Water has a high capacity for heat (thermal capacity). Which of the following may be the advantage in living cells due to this?
Any rise in temperature is small in comparison with the amount of heat absorbed by a cell
Any rise in temperature is large in comparison with the amount of heat absorbed by a cell
The 75% water in a cell does not retain a lot of heat
Any change in temperature will cause a cell to heat up or cool down quickly
The basic building block for all lipids.
Water
Acetyl-CoA
Phosphorus
Nucleic acid
Molecular size of the enzyme
The pH optimum value
The Km value
Formation of the product
Which one of the following amino-acids was not found to be synthesized in Miller's experiment?
Glutamic acid
Aspartic acid
Glycine
Alanine
Which of the following statements regarding enzyme inhibition is correct?
Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein
Non-competitive inhibitors often bind to the enzyme irreversibly
Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme
Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate
