Biology 11 chapter 4
Bioenergetics - 4
1.
The color of phycocyanin is ___?
a) blue
b) green
c) red
d) yellow
2.
The centeral atom in the chlorophyll molecule is ___?
a) Iron
b) Magnesium
c) Potasium
d) Calcium
3.
The long hydrocarbon chain of chlorophyll molecule is called as ___?
a) methyle ring
b) sterol side chain
c) acid chain
d) phytole side chain
4.
Sunlight is absorbed by the plants with the help of ___?
a) water
b) carbon dioxide
c) photosynthetic pigments
d) oxygen
5.
When the chlorophyll molecule lose electrons it is said to be ___?
a) both of these
b) oxidized
c) none of these
d) reduced
6.
The instrument used to measure the relative abilities of a pigment
to absorb light is called as ___?
a) thermometer
b) spectrophotometer
c) microscope
d) micrometer
7.
The absorption of different wavelengths of light by a particular
pigment is called as ___?
a) sorption spectrum
b) absorption spectrum
c) action spectrum
d) adsorption spectrum
8.
The measurement of the effectiveness of light of various
wavelengths in photosynthesis is called as ___?
a) absorption spectrum
b) sorption spectrum
c) action spectrum
d) adsorption spectrum
9.
Action spectrum can be determined by measuring the production of
___ during photosynthesis?
a) oxygen
b) carbon dioxide
c) glucose
d) water
10.
Engelman while obtaining the first action spectrum worked on ___?
a) volvox
b) spirogyra
c) yeast
d) euglena
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