Note: The quiz has five questions. Each has two option one true and other false.
Q. 1 In biochemistry ATP is considered as :
a) Molecular currency
b) Molecular scissor
Ans. (a)
ATP is called the energy currency of the cell, and of life, because it is the energy molecule that all cells need in order to do vital activity within the human body.
Q. 2 ATP stands for :
a) Adenosine tri phosphate
b) Adenosine Tetra Phosphate
Ans. (a)
ATP known as the molecular currency of intracellular energy transfer, ATP is able to store and transport chemical energy within cells.
Q. 3 Energy released from an ATP molecule when:
a) the bond between the 2nd and 3rd phosphate is broken
b) the bond between Adenine and ribose is broken
Ans. (a)
Energy is released by hydrolysis of the third phosphate group. It is made up of the molecule of Adenosine (adenine+sugar) and 3 phosphate groups.
Q. 4 ATP is not necessary for
a) protein synthesis
b) osmosis
Ans. (b)
Simple diffusion and osmosis are both forms of passive transport and require none of the cell’s ATP, because the flow of molecule according to concentration gradient, and ATP required when flow against the concentration gradient.
Q. 5 Cells have only small amount of ATP at any given time. Why is this true?
a) ATP release so much energy that only small amount are necessary.
b) ATP is efficient for transferring, but not for long term storage of energy.
Ans. (b)
ATP is efficient for transferring, but not for long term storage of energy, because it disrupt the existing equilibrium in the cell.