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
Protein
Carbohydrate
Lipid
Both Assertion and Reason are true and Reason is the correct explanation of the Assertion
Both Assertion and Reason are true but the Reason is not the correct explanations of Assertion
Both Assertion and Reason are false
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
Molecular size of the enzyme
The pH optimum value
The Km value
Formation of the product
Statement A is wrong, statement B is correct
Both the statements A and B are wrong
Statement A is correct, statement B is wrong
Both the statements A and B are correct
The basic building block for all lipids.
Water
Acetyl-CoA
Phosphorus
Nucleic acid
Which one of the following statement is NOT true?
Some inorganic elements are considered to be "essential" nutrients.
Triglycerides are considered to be "simple" lipids.
Virtually every reaction in a living cell requires an enzyme.
Only 10 "essential" amino acids are used in the synthesis of proteins.
What will happen when a protein digesting enzyme is mixed with a starch solution?
Have no action
Produce amino acids
Produce glucose
Digest the starch
Which one of the following is wrong statement?
Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins.
Nitrosomonas and Nitrobacter are chemoautotrophs.
Anabaena and Nostoc are capable of fixing nitrogen in free-living state also.
Root nodule forming nitrogen fixers live as aerobes under free-living conditions.