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Photosynthesis In Higher Plants

210 Questions Start Allen Test
All Exams Allen Errorless
Q126 Allen 6. NCERT BASED QUESTIONS MCQ
In Calvin cycle which step involve utilisation of 2 molecules of ATP for phosphorylation and two of NADPH₂ per $\mathsf { C O } _ { 2 }$ molecule fixed?
A.
Regeneration
B.
Carboxylation
C.
Reduction
D.
All of above
Q127 Allen 6. NCERT BASED QUESTIONS MCQ
Which character make C4 plants special ?
A.
Special type of leaf anatomy
B.
They can tolerate high temperature
C.
Show response to high light intensities
D.
All of the above
Q128 Allen 6. NCERT BASED QUESTIONS MCQ
Most abundant enzyme in the world is -
A.
Collagen
B.
RuBisCO
C.
PEPcase
D.
Pyruvate dikinase DDD1:
Q129 Allen 6. NCERT BASED QUESTIONS MCQ
For every $\mathsf { C O } _ { 2 }$ molecule entering the Calvin cycle, required energy is :-
A.
3 ATP and 2 NADPH
B.
2 ATP and 3 NADPH
C.
3 ATP and 3 NADPH
D.
2 ATP and 2 NADPH
Q130 Allen 6. NCERT BASED QUESTIONS MCQ
In $\mathsf { C } _ { 4 }$ plants, bundle sheath cells are characterised by :-
A.
Large number of chloroplasts
B.
Thick walls impervious to gaseous exchange
C.
No intercellular spaces
D.
All the above
Q131 Allen 6. NCERT BASED QUESTIONS MCQ
In $\mathsf { C } _ { 4 }$ plants photorespiration does not occur, due to:-
A.
Presence of RuBisCO enzyme
B.
Presence of high light intensity
C.
Increased concentration of $\mathsf { C O } _ { 2 }$ at RuBisCO enzyme site
D.
Presence of bundle sheath cells.
Q132 Allen 6. NCERT BASED QUESTIONS MCQ
In photosynthesis during ATP formation accumulation of protons occurs :-
A.
in lumen of thylakoid
B.
in stroma of chloroplast
C.
in periplastidial space
D.
at outer surface of thylakoid
Q133 Allen 6. NCERT BASED QUESTIONS MCQ
By using the bell jar, which of the following showed that sunlight is essential to plant process that purifies the air?
A.
Joseph priestley
B.
Julius Von Sachs
C.
T.W. Engelmann
D.
Jan Ingenhousz
Q134 Allen 6. NCERT BASED QUESTIONS MCQ
Radioisotopic technique was used to prove some facts about :-
A.
Light reaction of photosynthesis
B.
Biosynthetic phase of photosynthesis
C.
Both (1) and (2)
D.
Different shapes of chloroplasts in plants
Q135 Allen 6. NCERT BASED QUESTIONS MCQ
Represented below is the graph showing action spectrum of photosynthesis superimposed on absorption spectrum of chlorophyll $\ " a \ " .$ Which one of the following is correct for this?
A.
There is a complete one to one overlap between the absorption and action spectrum
B.
By this overlapping it can be concluded that chlorophyll 'a' is the chief pigment of photosynthesis
C.
This overlapping shows that only chlorophyll 'a' absorb the entire light energy
D.
These graphs show that photosynthesis occurs only in the wavelengths of blue and red light
Q136 Allen 6. NCERT BASED QUESTIONS MCQ
The plants with Hatch and Slack pathway are adapted to :-
A.
Humid temperate regions
B.
Dry temperate regions
C.
Humid tropical regions
D.
Dry tropical regions
Q137 Allen 6. NCERT BASED QUESTIONS MCQ
Which of the following is correct?
A.
The ${ \mathsf { C } } _ { 3 }$ and $\mathsf { C } _ { 4 }$ plants respond similarly to $\mathsf { C O } _ { 2 }$ concentrations.
B.
At low light conditions $\mathsf { C } _ { 4 }$ plants show increase in the rates of photosynthesis.
C.
$\mathsf { C } _ { 4 }$ plants not respond to high temperature.
D.
The ${ \mathsf { C } } _ { 3 }$ and $\mathsf { C } _ { 4 }$ plants respond differently to $\mathsf { C O } _ { 2 }$ concentrations.
Q138 Allen 6. NCERT BASED QUESTIONS MCQ
Word dark reaction for biosynthetic phase of photosynthesis is misnomer word because:
A.
Dark reaction occur during dark
B.
Dark reaction occur during day
C.
Dark reaction is completely free from light
D.
Dark reaction occur during short dark intervals
Q139 Allen 6. NCERT BASED QUESTIONS MCQ
Photosynthetic photosystem is consist of :-
A.
Reaction centre only
B.
LHC only
C.
Both LHC & reaction centre
D.
Proteins only
Q140 Allen 6. NCERT BASED QUESTIONS MCQ
In grana lamellae, presence of which of the following specify that 'Z' scheme found only in grana lamellae?
A.
PS-I, PS-II
B.
PS-II & NADP reductase
C.
PS-I & NADP reductase
D.
$\mathsf { M g } ^ { + + }$
Q141 Allen 6. NCERT BASED QUESTIONS MCQ
An elegant experiment with an aquatic plant showed that in bright sunlight, small bubbles were formed around the green parts while in the dark they did not. It was done by :-
A.
Jan Ingenhousz
B.
Van Sachs
C.
Priestley
D.
Van Niel
Q142 Allen 6. NCERT BASED QUESTIONS MCQ
How many ATP are required for regeneration of RUBP in one Calvin cycle?
A.
6 ATP
B.
1 ATP
C.
3 ATP
D.
12 ATP
Q143 Allen 6. NCERT BASED QUESTIONS MCQ
Based on his studies of purple & green bacteriawhodemonstrated that photosynthesis is essentially a light dependent reaction in which hydrogen from a suitable oxidisable compound reduces CO2 to carbohydrates?
A.
Van Niel
B.
Von Sachs
C.
Calvin
D.
Priestley
Q144 Allen 6. NCERT BASED QUESTIONS MCQ
Which of following is correct about dark reaction?
A.
It is not directly light driven but are dependent on products of light reaction (ATP & NADPH)
B.
It occurs in stroma of chloroplast by enzymatic reactions
C.
Both 1 & 2
D.
It occurs in stroma lamellae
Q145 Allen 6. NCERT BASED QUESTIONS MCQ
Which of the following is most crucial step of Calvin cycle?
A.
Carboxylation
B.
Reduction
C.
Regeneration
D.
Glycolytic reversal
Q146 Allen 6. NCERT BASED QUESTIONS MCQ
Find out the correct match from the following table :- (i) photochemical phase – photosynthesis – oxygen release (ii) paper chromatography – chlorophyll 'b' – yello orange (iii) carotenoids – chief pigment – red light absorption
A.
i only
B.
i and ii
C.
iii only
D.
ii and iii
Q147 Allen 6. NCERT BASED QUESTIONS MCQ
During photosynthesis, plants mainly utilise the red and blue regions of visible spectrum, for the first time it was concluded by :
A.
Jan Ingenhousz
B.
Joseph Priestley
C.
T.W. Engelmann
D.
Cornelius Van Niel
Q148 Allen 6. NCERT BASED QUESTIONS MCQ
Which of the following conclusions regarding photosynthesis was proved by using radioisotopic techniques?
A.
Light is essential
B.
O₂ comes from H₂O and not from CO₂
C.
Glucose is stored as starch
D.
Exchange of gases with environment
Q149 Allen 6. NCERT BASED QUESTIONS MCQ
The dark reactions of the photosynthesis :
A.
occur in darkness
B.
are not light dependent
C.
are not directly light driven
D.
occur in membrane system of chloroplast
Q150 Allen 6. NCERT BASED QUESTIONS MCQ
Electrons from which of following reduces NADP⁺ to NADPH + H⁺ during Z-scheme of photosynthesis?
A.
photosystem-I
B.
water
C.
carbon dioxide
D.
photosystem-II