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BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337370 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
$C O_{2}$ is added to RUBP
P
OAA (4C)
B
$C O_{2}$ is added to PEP
Q
High $O_{2}$ , Low $C O_{2}$
C
Photosynthesis
R
Phosphoglycerate (3C)
D
Photorespiration
S
Redox process

1 A-P , B-R , C-Q , D-S

2 A-R , B-P , C-Q , D-S

3 A-P , B-R , C-S , D-Q

4 A-R , B-P , C-S , D-Q

Explanation:

A. $C O_{2}$ is added to RUBP - R. Phosphoghycerate(3C)
B. $C O_{2}$ is added to PEP - P. OAA (4C)
C. Photosynthesis - S. Redox process
D. Photorespiration - Q. High $O_{2}$ , Low $C O_{2}$

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337371 In $C_{4}$ plants photorespiration does not occur because_

1 They have a mechanism that increases the concentration of

O_{2}

at the enzyme site.

2 They have a mechanism that increases the concentration of

C O_{2}

at the enzyme site.

3 They have a mechanism that decreases the concentration of

C O_{2}

at the enzyme site.

4 They have a mechanism that increases the concentration of CO at the enzyme site.

Explanation:

In $C_{4}$ plants photorespiration does not occur. This is because they have a mechanism that increases the concentration of $C O_{2}$ at the enzyme site.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337372 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
Photorespiration
P
$C_{3}$ plants
B
CAM plants
Q
Fixing $C O_{2}$ into organic acid in night
C
$C_{4}$ pathway
R
Amaranthus

1 A-R , B-P , C-Q

2 A-Q , B-P , C-R

3 A-P , B-Q , C-R

4 A-P , B-R , C-Q

Explanation:

A. Photorespiration - P. $C_{3}$ plants
B. CAM plants - Q. Fixing $C O_{2}$ into organic acid in night
C. $C_{4}$ pathway - R. Amaranthus

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337373 Read the following statements regarding photorespiration and select the total number of correct statements.
(a) In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is increased.
(b) In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP.
(c) Photorespiration results in the release of $O_{2}$ with the utilisation of ATP.
(d) In the photorespiratory pathway there is no synthesis of ATP or NADPH.
(e) The biological function of photorespiration is not known yet.

1 4

2 2

3 5

4 3

Explanation:

Three statements correct. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Photorespiration results in the release of $C O_{2}$ with the utilisation of ATP

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337374 Photorespiration is also known as

1

C_{3}

cycle

2

C_{4}

cycle

3

C_{2}

cycle

4 None of the above

Explanation:

Phosphoglycolate (2C) is formed as one of the products in photorespiration. This is why it is also known as the $C_{2}$ cycle.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337370 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
$C O_{2}$ is added to RUBP
P
OAA (4C)
B
$C O_{2}$ is added to PEP
Q
High $O_{2}$ , Low $C O_{2}$
C
Photosynthesis
R
Phosphoglycerate (3C)
D
Photorespiration
S
Redox process

1 A-P , B-R , C-Q , D-S

2 A-R , B-P , C-Q , D-S

3 A-P , B-R , C-S , D-Q

4 A-R , B-P , C-S , D-Q

Explanation:

A. $C O_{2}$ is added to RUBP - R. Phosphoghycerate(3C)
B. $C O_{2}$ is added to PEP - P. OAA (4C)
C. Photosynthesis - S. Redox process
D. Photorespiration - Q. High $O_{2}$ , Low $C O_{2}$

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337371 In $C_{4}$ plants photorespiration does not occur because_

1 They have a mechanism that increases the concentration of

O_{2}

at the enzyme site.

2 They have a mechanism that increases the concentration of

C O_{2}

at the enzyme site.

3 They have a mechanism that decreases the concentration of

C O_{2}

at the enzyme site.

4 They have a mechanism that increases the concentration of CO at the enzyme site.

Explanation:

In $C_{4}$ plants photorespiration does not occur. This is because they have a mechanism that increases the concentration of $C O_{2}$ at the enzyme site.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337372 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
Photorespiration
P
$C_{3}$ plants
B
CAM plants
Q
Fixing $C O_{2}$ into organic acid in night
C
$C_{4}$ pathway
R
Amaranthus

1 A-R , B-P , C-Q

2 A-Q , B-P , C-R

3 A-P , B-Q , C-R

4 A-P , B-R , C-Q

Explanation:

A. Photorespiration - P. $C_{3}$ plants
B. CAM plants - Q. Fixing $C O_{2}$ into organic acid in night
C. $C_{4}$ pathway - R. Amaranthus

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337373 Read the following statements regarding photorespiration and select the total number of correct statements.
(a) In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is increased.
(b) In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP.
(c) Photorespiration results in the release of $O_{2}$ with the utilisation of ATP.
(d) In the photorespiratory pathway there is no synthesis of ATP or NADPH.
(e) The biological function of photorespiration is not known yet.

1 4

2 2

3 5

4 3

Explanation:

Three statements correct. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Photorespiration results in the release of $C O_{2}$ with the utilisation of ATP

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337374 Photorespiration is also known as

1

C_{3}

cycle

2

C_{4}

cycle

3

C_{2}

cycle

4 None of the above

Explanation:

Phosphoglycolate (2C) is formed as one of the products in photorespiration. This is why it is also known as the $C_{2}$ cycle.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337370 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
$C O_{2}$ is added to RUBP
P
OAA (4C)
B
$C O_{2}$ is added to PEP
Q
High $O_{2}$ , Low $C O_{2}$
C
Photosynthesis
R
Phosphoglycerate (3C)
D
Photorespiration
S
Redox process

1 A-P , B-R , C-Q , D-S

2 A-R , B-P , C-Q , D-S

3 A-P , B-R , C-S , D-Q

4 A-R , B-P , C-S , D-Q

Explanation:

A. $C O_{2}$ is added to RUBP - R. Phosphoghycerate(3C)
B. $C O_{2}$ is added to PEP - P. OAA (4C)
C. Photosynthesis - S. Redox process
D. Photorespiration - Q. High $O_{2}$ , Low $C O_{2}$

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337371 In $C_{4}$ plants photorespiration does not occur because_

1 They have a mechanism that increases the concentration of

O_{2}

at the enzyme site.

2 They have a mechanism that increases the concentration of

C O_{2}

at the enzyme site.

3 They have a mechanism that decreases the concentration of

C O_{2}

at the enzyme site.

4 They have a mechanism that increases the concentration of CO at the enzyme site.

Explanation:

In $C_{4}$ plants photorespiration does not occur. This is because they have a mechanism that increases the concentration of $C O_{2}$ at the enzyme site.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337372 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
Photorespiration
P
$C_{3}$ plants
B
CAM plants
Q
Fixing $C O_{2}$ into organic acid in night
C
$C_{4}$ pathway
R
Amaranthus

1 A-R , B-P , C-Q

2 A-Q , B-P , C-R

3 A-P , B-Q , C-R

4 A-P , B-R , C-Q

Explanation:

A. Photorespiration - P. $C_{3}$ plants
B. CAM plants - Q. Fixing $C O_{2}$ into organic acid in night
C. $C_{4}$ pathway - R. Amaranthus

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337373 Read the following statements regarding photorespiration and select the total number of correct statements.
(a) In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is increased.
(b) In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP.
(c) Photorespiration results in the release of $O_{2}$ with the utilisation of ATP.
(d) In the photorespiratory pathway there is no synthesis of ATP or NADPH.
(e) The biological function of photorespiration is not known yet.

1 4

2 2

3 5

4 3

Explanation:

Three statements correct. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Photorespiration results in the release of $C O_{2}$ with the utilisation of ATP

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337374 Photorespiration is also known as

1

C_{3}

cycle

2

C_{4}

cycle

3

C_{2}

cycle

4 None of the above

Explanation:

Phosphoglycolate (2C) is formed as one of the products in photorespiration. This is why it is also known as the $C_{2}$ cycle.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337370 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
$C O_{2}$ is added to RUBP
P
OAA (4C)
B
$C O_{2}$ is added to PEP
Q
High $O_{2}$ , Low $C O_{2}$
C
Photosynthesis
R
Phosphoglycerate (3C)
D
Photorespiration
S
Redox process

1 A-P , B-R , C-Q , D-S

2 A-R , B-P , C-Q , D-S

3 A-P , B-R , C-S , D-Q

4 A-R , B-P , C-S , D-Q

Explanation:

A. $C O_{2}$ is added to RUBP - R. Phosphoghycerate(3C)
B. $C O_{2}$ is added to PEP - P. OAA (4C)
C. Photosynthesis - S. Redox process
D. Photorespiration - Q. High $O_{2}$ , Low $C O_{2}$

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337371 In $C_{4}$ plants photorespiration does not occur because_

1 They have a mechanism that increases the concentration of

O_{2}

at the enzyme site.

2 They have a mechanism that increases the concentration of

C O_{2}

at the enzyme site.

3 They have a mechanism that decreases the concentration of

C O_{2}

at the enzyme site.

4 They have a mechanism that increases the concentration of CO at the enzyme site.

Explanation:

In $C_{4}$ plants photorespiration does not occur. This is because they have a mechanism that increases the concentration of $C O_{2}$ at the enzyme site.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337372 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
Photorespiration
P
$C_{3}$ plants
B
CAM plants
Q
Fixing $C O_{2}$ into organic acid in night
C
$C_{4}$ pathway
R
Amaranthus

1 A-R , B-P , C-Q

2 A-Q , B-P , C-R

3 A-P , B-Q , C-R

4 A-P , B-R , C-Q

Explanation:

A. Photorespiration - P. $C_{3}$ plants
B. CAM plants - Q. Fixing $C O_{2}$ into organic acid in night
C. $C_{4}$ pathway - R. Amaranthus

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337373 Read the following statements regarding photorespiration and select the total number of correct statements.
(a) In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is increased.
(b) In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP.
(c) Photorespiration results in the release of $O_{2}$ with the utilisation of ATP.
(d) In the photorespiratory pathway there is no synthesis of ATP or NADPH.
(e) The biological function of photorespiration is not known yet.

1 4

2 2

3 5

4 3

Explanation:

Three statements correct. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Photorespiration results in the release of $C O_{2}$ with the utilisation of ATP

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337374 Photorespiration is also known as

1

C_{3}

cycle

2

C_{4}

cycle

3

C_{2}

cycle

4 None of the above

Explanation:

Phosphoglycolate (2C) is formed as one of the products in photorespiration. This is why it is also known as the $C_{2}$ cycle.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337370 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
$C O_{2}$ is added to RUBP
P
OAA (4C)
B
$C O_{2}$ is added to PEP
Q
High $O_{2}$ , Low $C O_{2}$
C
Photosynthesis
R
Phosphoglycerate (3C)
D
Photorespiration
S
Redox process

1 A-P , B-R , C-Q , D-S

2 A-R , B-P , C-Q , D-S

3 A-P , B-R , C-S , D-Q

4 A-R , B-P , C-S , D-Q

Explanation:

A. $C O_{2}$ is added to RUBP - R. Phosphoghycerate(3C)
B. $C O_{2}$ is added to PEP - P. OAA (4C)
C. Photosynthesis - S. Redox process
D. Photorespiration - Q. High $O_{2}$ , Low $C O_{2}$

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337371 In $C_{4}$ plants photorespiration does not occur because_

1 They have a mechanism that increases the concentration of

O_{2}

at the enzyme site.

2 They have a mechanism that increases the concentration of

C O_{2}

at the enzyme site.

3 They have a mechanism that decreases the concentration of

C O_{2}

at the enzyme site.

4 They have a mechanism that increases the concentration of CO at the enzyme site.

Explanation:

In $C_{4}$ plants photorespiration does not occur. This is because they have a mechanism that increases the concentration of $C O_{2}$ at the enzyme site.

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337372 Match the following Columns I & II and choose the correct option.
Column I
Column II
A
Photorespiration
P
$C_{3}$ plants
B
CAM plants
Q
Fixing $C O_{2}$ into organic acid in night
C
$C_{4}$ pathway
R
Amaranthus

1 A-R , B-P , C-Q

2 A-Q , B-P , C-R

3 A-P , B-Q , C-R

4 A-P , B-R , C-Q

Explanation:

A. Photorespiration - P. $C_{3}$ plants
B. CAM plants - Q. Fixing $C O_{2}$ into organic acid in night
C. $C_{4}$ pathway - R. Amaranthus

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337373 Read the following statements regarding photorespiration and select the total number of correct statements.
(a) In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is increased.
(b) In the photorespiratory pathway, there is neither synthesis of sugars, nor of ATP.
(c) Photorespiration results in the release of $O_{2}$ with the utilisation of ATP.
(d) In the photorespiratory pathway there is no synthesis of ATP or NADPH.
(e) The biological function of photorespiration is not known yet.

1 4

2 2

3 5

4 3

Explanation:

Three statements correct. In $C_{3}$ plants some $O_{2}$ does bind to RuBisCO, and hence $C O_{2}$ fixation is decreased. Photorespiration results in the release of $C O_{2}$ with the utilisation of ATP

BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS

337374 Photorespiration is also known as

1

C_{3}

cycle

2

C_{4}

cycle

3

C_{2}

cycle

4 None of the above

Explanation:

Phosphoglycolate (2C) is formed as one of the products in photorespiration. This is why it is also known as the $C_{2}$ cycle.

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