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BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337342 Peroxisome in photorespiration

1 Helps in oxidation of glyoxylate

2 Helps in breakdown of RuBisCO

3 Helps in the oxidation of glycolate

4 Both 1 and 2

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337340 Which of the following enzyme is most abundant enzyme in the world?

1 RuBisCO

2 PEPcase

3 Ptyalin

4 Trypsin

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337341 The location of photorespiration is _

1 Ribosomes, chloroplast, mitochondria

2 Mitochondria, chloroplast, peroxisomes

3 Ribosomes, chloroplast, peroxisomes

4 Ribosomes, mitochondria, nucleosome

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337343 Statement A :
RuBisCO has a much greater affinity for $O_{2}$ than for $C O_{2}$
Statement B :
In $C_{3}$ plants, some $O_{2}$ binds with RUBP to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration

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:

RuBisCO has a much greater affinity for $C O_{2}$ when the $C O_{2}$ : $O_{2}$ is nearly equal. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Here the RuB instead of being converted to 2 molecules of PGA binds with $O_{2}$ to form one molecule of phosphoglycerate and phosphoglycolate (2 Carbon) in a pathway called photorespiration.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337344 RuBisCO has a much greater affinity for ___ when the $C O_{2}$ : $O_{2}$ is nearly equal.

1

C O_{2}

2

O_{2}

3 Equal affinity

4 Data insufficient

Explanation:

When the amount of $C O_{2}$ and $O_{2}$ present in the cell is nearly equal, RuBisCO enzyme shows greater affinity to $C O_{2}$ and acts as carboxylase.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337342 Peroxisome in photorespiration

1 Helps in oxidation of glyoxylate

2 Helps in breakdown of RuBisCO

3 Helps in the oxidation of glycolate

4 Both 1 and 2

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337340 Which of the following enzyme is most abundant enzyme in the world?

1 RuBisCO

2 PEPcase

3 Ptyalin

4 Trypsin

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337341 The location of photorespiration is _

1 Ribosomes, chloroplast, mitochondria

2 Mitochondria, chloroplast, peroxisomes

3 Ribosomes, chloroplast, peroxisomes

4 Ribosomes, mitochondria, nucleosome

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337343 Statement A :
RuBisCO has a much greater affinity for $O_{2}$ than for $C O_{2}$
Statement B :
In $C_{3}$ plants, some $O_{2}$ binds with RUBP to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration

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:

RuBisCO has a much greater affinity for $C O_{2}$ when the $C O_{2}$ : $O_{2}$ is nearly equal. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Here the RuB instead of being converted to 2 molecules of PGA binds with $O_{2}$ to form one molecule of phosphoglycerate and phosphoglycolate (2 Carbon) in a pathway called photorespiration.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337344 RuBisCO has a much greater affinity for ___ when the $C O_{2}$ : $O_{2}$ is nearly equal.

1

C O_{2}

2

O_{2}

3 Equal affinity

4 Data insufficient

Explanation:

When the amount of $C O_{2}$ and $O_{2}$ present in the cell is nearly equal, RuBisCO enzyme shows greater affinity to $C O_{2}$ and acts as carboxylase.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337342 Peroxisome in photorespiration

1 Helps in oxidation of glyoxylate

2 Helps in breakdown of RuBisCO

3 Helps in the oxidation of glycolate

4 Both 1 and 2

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337340 Which of the following enzyme is most abundant enzyme in the world?

1 RuBisCO

2 PEPcase

3 Ptyalin

4 Trypsin

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337341 The location of photorespiration is _

1 Ribosomes, chloroplast, mitochondria

2 Mitochondria, chloroplast, peroxisomes

3 Ribosomes, chloroplast, peroxisomes

4 Ribosomes, mitochondria, nucleosome

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337343 Statement A :
RuBisCO has a much greater affinity for $O_{2}$ than for $C O_{2}$
Statement B :
In $C_{3}$ plants, some $O_{2}$ binds with RUBP to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration

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:

RuBisCO has a much greater affinity for $C O_{2}$ when the $C O_{2}$ : $O_{2}$ is nearly equal. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Here the RuB instead of being converted to 2 molecules of PGA binds with $O_{2}$ to form one molecule of phosphoglycerate and phosphoglycolate (2 Carbon) in a pathway called photorespiration.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337344 RuBisCO has a much greater affinity for ___ when the $C O_{2}$ : $O_{2}$ is nearly equal.

1

C O_{2}

2

O_{2}

3 Equal affinity

4 Data insufficient

Explanation:

When the amount of $C O_{2}$ and $O_{2}$ present in the cell is nearly equal, RuBisCO enzyme shows greater affinity to $C O_{2}$ and acts as carboxylase.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337342 Peroxisome in photorespiration

1 Helps in oxidation of glyoxylate

2 Helps in breakdown of RuBisCO

3 Helps in the oxidation of glycolate

4 Both 1 and 2

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337340 Which of the following enzyme is most abundant enzyme in the world?

1 RuBisCO

2 PEPcase

3 Ptyalin

4 Trypsin

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337341 The location of photorespiration is _

1 Ribosomes, chloroplast, mitochondria

2 Mitochondria, chloroplast, peroxisomes

3 Ribosomes, chloroplast, peroxisomes

4 Ribosomes, mitochondria, nucleosome

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337343 Statement A :
RuBisCO has a much greater affinity for $O_{2}$ than for $C O_{2}$
Statement B :
In $C_{3}$ plants, some $O_{2}$ binds with RUBP to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration

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:

RuBisCO has a much greater affinity for $C O_{2}$ when the $C O_{2}$ : $O_{2}$ is nearly equal. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Here the RuB instead of being converted to 2 molecules of PGA binds with $O_{2}$ to form one molecule of phosphoglycerate and phosphoglycolate (2 Carbon) in a pathway called photorespiration.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337344 RuBisCO has a much greater affinity for ___ when the $C O_{2}$ : $O_{2}$ is nearly equal.

1

C O_{2}

2

O_{2}

3 Equal affinity

4 Data insufficient

Explanation:

When the amount of $C O_{2}$ and $O_{2}$ present in the cell is nearly equal, RuBisCO enzyme shows greater affinity to $C O_{2}$ and acts as carboxylase.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337342 Peroxisome in photorespiration

1 Helps in oxidation of glyoxylate

2 Helps in breakdown of RuBisCO

3 Helps in the oxidation of glycolate

4 Both 1 and 2

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337340 Which of the following enzyme is most abundant enzyme in the world?

1 RuBisCO

2 PEPcase

3 Ptyalin

4 Trypsin

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337341 The location of photorespiration is _

1 Ribosomes, chloroplast, mitochondria

2 Mitochondria, chloroplast, peroxisomes

3 Ribosomes, chloroplast, peroxisomes

4 Ribosomes, mitochondria, nucleosome

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337343 Statement A :
RuBisCO has a much greater affinity for $O_{2}$ than for $C O_{2}$
Statement B :
In $C_{3}$ plants, some $O_{2}$ binds with RUBP to form one molecule of phosphoglycerate and phosphoglycolate in a pathway called photorespiration

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:

RuBisCO has a much greater affinity for $C O_{2}$ when the $C O_{2}$ : $O_{2}$ is nearly equal. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Here the RuB instead of being converted to 2 molecules of PGA binds with $O_{2}$ to form one molecule of phosphoglycerate and phosphoglycolate (2 Carbon) in a pathway called photorespiration.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337344 RuBisCO has a much greater affinity for ___ when the $C O_{2}$ : $O_{2}$ is nearly equal.

1

C O_{2}

2

O_{2}

3 Equal affinity

4 Data insufficient

Explanation:

When the amount of $C O_{2}$ and $O_{2}$ present in the cell is nearly equal, RuBisCO enzyme shows greater affinity to $C O_{2}$ and acts as carboxylase.

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