MCQs of Biology – Matter and Energy

All the energy for living organisms comes as radiation in the form of __________ from the sun and is captured by ___________.

Livina cells control their activities through:

Energy is utilized by cells for:

Which of the cellular activities require energy?

What type of energy is needed to make up the loss of energy in a cell?

Which is correct about energy changes in living cells?

A steady state system means:

There is an exchange of materials and energy between living organisms and their surrounding. Such a system is called:

A closed system is which:

The process in which excess energy lost by light waves is called:

Free energy liberated during oxidation pr mole of palmitic acid is G [cal/mol]:

in the organisms, which show bio luminescence, the chemical energy of cell is converted into:

The energy transformation in the nervous system is:

The total solar energy is converted to biomass on Earth amounts only:

A coconut high in a palm tree has _________ owing to its location:

The amount of usable energy that is available for doing work in a system is :

The _________ energy of a system is that part of the total energy available to do cellular work:

Maximum efficiency of a system in which rate of input of energy equal to output is called:

The total heat content of a system is:

When spontaneous process occurs then free energy of a system:

Energy flow and energy transformation in living systems strictly conform to the:

According to the first law of thermodynamics, the total amount of energy in the universe:

According to the first law of thermodynamics:

What is predicated by the second law of thermodynamics?

According to the second law of thermodynamics:

Which of the following is a measure of the degree of randomness or disorder of the system?

Energy transformations are not 100% efficient owing to:

The tem’ entropy ‘ was first used by:

The laws of thermodynamics state that whenever energy changes occur, __________ always increases:

In thermodynamics, ________ is a measure of the amount of disorder in the system:

Which statement about ergonomic reactions is true?

A reaction that requires a net input of free energy is described as:

If we liken chemical equilibrium to the bottom of an energy hill then an ________ reaction is an uphill run:

A reaction that releases energy is described as:

A spontaneous reaction is one is which the change in energy (G) has a ______ value:

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called:

To drive a reaction that requires an input of energy:

The kinetic energy required to initiate a reaction is called: