Biology 11 chapter 4
Bioenergetics - 1
1.
The total energy of the universe____?
a) changes alternatively
b) does not change
c) changes very fast
d) changes very slow
2.
The study of energy changes with in a biological system is called as___?
a) bioenergetics
b) thermodynamics
c) metabolism
d) genetics
3.
In plants and algae, photosynthesis is a ____ process?
a) respiratory
b) food destructive
c) food preparing
d) digestive
4.
The ultimate source of light energy for all living forms is ____?
a) sun
b) oceans
c) stars
d) moon
5.
Plants absorb ___ during photosynthesis?
a) oxygen
b) carbon dioxide
c) nitrogen
d) hydrogen
6.
Water and Carbondioxide are the ___ of photosynthesis?
a) by products
b) products
c) reactants
d) intermediates
7.
Which one of the following is a by product of photosynthesis?
a) oxygen
b) glucose
c) water
d) carbon dioxide
8.
Sunlight eneregy is a form of___?
a) electromagnetic eneregy
b) chemical energy
c) heat energy
d) sound energy
9.
The distance between two successive crests of light waves is called as ___?
a) wavelength
b) spectrum
c) displacement
d) velocity
10.
The unit of wavelength is ___?
a) meter
b) milimeter
c) nanometer
d) micrometer
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