337366
Statement A : Photorespiratory pathway results in the release of \(C{O_2}\) with the utilisation of ATP Statement B : Photorespiration is a wasteful process
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP. Rather it results in the release of \(C{O_2}\) with the utilisation of ATP. In the photorespiratory pathway there is no synthesis of ATP or NADPH. The biological function of photorespiration is not known yet. It is a wasteful process.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337367
RuBisCO is characterised by the fact that its active site can bind ___.
1 \(C{O_2}\) and \({O_2}\)
2 \(C{O_2}\) only
3 \({O_2}\) only
4 CO
Explanation:
RuBisCO possesses active sites for both \({O_2}\) and \(C{O_2}\). It acts as both carboxylase and oxygenase.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337368
The root cause for photorespiration is_
1 Simultaneous binding of \(C{O_2}\) and \({O_2}\) with ¬RuBisCO
2 Binding of \(C{O_2}\) with RuBisCO
3 \({O_2}\) does bind to RuBisCO
4 All of the above
Explanation:
In \({C_3}\) plants some \({O_2}\) does bind to RuBisCO, and hence \(C{O_2}\) fixation is decreased. Here the RuBP instead of being converted to 2 molecules of PGA binds with \({O_2}\) to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337369
Photorespiration occurs in _
1 \({C_3}\) plants only
2 \({C_4}\) plants only
3 Both \({C_3}\) and C4 plants.
4 None of the above.
Explanation:
\({C_4}\) plants lack photorespiration. It occurs in \({C_3}\) plants only.
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BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337366
Statement A : Photorespiratory pathway results in the release of \(C{O_2}\) with the utilisation of ATP Statement B : Photorespiration is a wasteful process
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP. Rather it results in the release of \(C{O_2}\) with the utilisation of ATP. In the photorespiratory pathway there is no synthesis of ATP or NADPH. The biological function of photorespiration is not known yet. It is a wasteful process.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337367
RuBisCO is characterised by the fact that its active site can bind ___.
1 \(C{O_2}\) and \({O_2}\)
2 \(C{O_2}\) only
3 \({O_2}\) only
4 CO
Explanation:
RuBisCO possesses active sites for both \({O_2}\) and \(C{O_2}\). It acts as both carboxylase and oxygenase.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337368
The root cause for photorespiration is_
1 Simultaneous binding of \(C{O_2}\) and \({O_2}\) with ¬RuBisCO
2 Binding of \(C{O_2}\) with RuBisCO
3 \({O_2}\) does bind to RuBisCO
4 All of the above
Explanation:
In \({C_3}\) plants some \({O_2}\) does bind to RuBisCO, and hence \(C{O_2}\) fixation is decreased. Here the RuBP instead of being converted to 2 molecules of PGA binds with \({O_2}\) to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337369
Photorespiration occurs in _
1 \({C_3}\) plants only
2 \({C_4}\) plants only
3 Both \({C_3}\) and C4 plants.
4 None of the above.
Explanation:
\({C_4}\) plants lack photorespiration. It occurs in \({C_3}\) plants only.
337366
Statement A : Photorespiratory pathway results in the release of \(C{O_2}\) with the utilisation of ATP Statement B : Photorespiration is a wasteful process
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP. Rather it results in the release of \(C{O_2}\) with the utilisation of ATP. In the photorespiratory pathway there is no synthesis of ATP or NADPH. The biological function of photorespiration is not known yet. It is a wasteful process.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337367
RuBisCO is characterised by the fact that its active site can bind ___.
1 \(C{O_2}\) and \({O_2}\)
2 \(C{O_2}\) only
3 \({O_2}\) only
4 CO
Explanation:
RuBisCO possesses active sites for both \({O_2}\) and \(C{O_2}\). It acts as both carboxylase and oxygenase.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337368
The root cause for photorespiration is_
1 Simultaneous binding of \(C{O_2}\) and \({O_2}\) with ¬RuBisCO
2 Binding of \(C{O_2}\) with RuBisCO
3 \({O_2}\) does bind to RuBisCO
4 All of the above
Explanation:
In \({C_3}\) plants some \({O_2}\) does bind to RuBisCO, and hence \(C{O_2}\) fixation is decreased. Here the RuBP instead of being converted to 2 molecules of PGA binds with \({O_2}\) to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337369
Photorespiration occurs in _
1 \({C_3}\) plants only
2 \({C_4}\) plants only
3 Both \({C_3}\) and C4 plants.
4 None of the above.
Explanation:
\({C_4}\) plants lack photorespiration. It occurs in \({C_3}\) plants only.
337366
Statement A : Photorespiratory pathway results in the release of \(C{O_2}\) with the utilisation of ATP Statement B : Photorespiration is a wasteful process
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP. Rather it results in the release of \(C{O_2}\) with the utilisation of ATP. In the photorespiratory pathway there is no synthesis of ATP or NADPH. The biological function of photorespiration is not known yet. It is a wasteful process.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337367
RuBisCO is characterised by the fact that its active site can bind ___.
1 \(C{O_2}\) and \({O_2}\)
2 \(C{O_2}\) only
3 \({O_2}\) only
4 CO
Explanation:
RuBisCO possesses active sites for both \({O_2}\) and \(C{O_2}\). It acts as both carboxylase and oxygenase.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337368
The root cause for photorespiration is_
1 Simultaneous binding of \(C{O_2}\) and \({O_2}\) with ¬RuBisCO
2 Binding of \(C{O_2}\) with RuBisCO
3 \({O_2}\) does bind to RuBisCO
4 All of the above
Explanation:
In \({C_3}\) plants some \({O_2}\) does bind to RuBisCO, and hence \(C{O_2}\) fixation is decreased. Here the RuBP instead of being converted to 2 molecules of PGA binds with \({O_2}\) to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337369
Photorespiration occurs in _
1 \({C_3}\) plants only
2 \({C_4}\) plants only
3 Both \({C_3}\) and C4 plants.
4 None of the above.
Explanation:
\({C_4}\) plants lack photorespiration. It occurs in \({C_3}\) plants only.
