Photosynthesis in Higher Plants Test

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Photosynthesis in Higher Plants Test - 73

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Weekly Quiz Competition

Question 1
1 / -0

Chlorophyll containing cells produce _________ in presence of light.

A
Proteins

B
Carbohydrates

C
Glucose

D
Nucleic acid
Question 2
1 / -0

Which of the given is not a component of assimilatory power for dark reaction?

A
ATP

B
NADPH

C
$$CO_2$$

D
Both ATP and NADPH

Solution
Question 3
1 / -0

How many ATP molecules will be produced when one molecule of 3-phosphosphoglyceric acid is completely oxidised :

A
16

B
32

C
64

D
48
Question 4
1 / -0

Which one of the following is not a photosynthetic diazotroph.

A
Nostoc

B
Frankia

C
Anabaena

D
Rhodospirillum

Solution

So the correct option is A.
Question 5
1 / -0

What is the site of $$C_3$$ cycle in $$C_3$$ and $$C_4$$ plants?

A
In $$C_3$$ plant - mesophyll cell and In $$C_4$$ plant - Bundle sheath cell

B
In $$C_3$$ plant - Bundle sheath cell and In $$C_4$$ plant - mesophyll cell

C
In $$C_4$$ plant - Bundle sheath cell and In $$C_3$$ plant - Bundle sheath cell

D
In $$C_3$$ plant - mesophyll cell and In $$C_4$$ plant - mesophyll cell
Solution
- In $$C_4$$ plants, the photosynthesis takes place in a chloroplast of a thin-walled mesophyll cell and a 4-carbon acid is handed off to a thick-walled bundle sheath cell where the Calvin cycle occurs.
- In $$C_3$$ plants, a 3-carbon sugar is produced which can diffuse into mesophyll cells, and into the stroma of chloroplasts, where the Calvin cycle takes place.
- Hence, the site of $$C_3$$ cycle or Calvin cycle in $$C_3$$ plants is mesophyll cell and in $$C_4$$ plants is bundle sheath cell.
So, the correct answer is 'In $$C_3$$ plant - mesophyll cell and In $$C_4$$ plant - Bundle sheath cell'.
Question 6
1 / -0

Chemiosmotic theory of P. Mitchell explains a general mechanism of energy conservation across?

A
Inner mitochondrial membrane

B
Thylakoid membrane

C
Cell wall

D
More than one option is correct
Question 7
1 / -0

Which of the following takes place in pigment system II of chloroplast?

A
$$CO_2$$ fixation

B
$$CO_2$$ reduction

C
Photolysis of water

D
All of these

Solution

In the pigment system II, photolysis of water takes place. This reaction takes place to replace the lost electron in PS II.
So the correct option is C.
Question 8
1 / -0

In the maize plant, $$CO_2$$ fixation occurs in both mesophyll and bundle sheath cells. The enzymes involved in these cells for the process respectively are,

A
RuBisCO and PEP Kinase

B
PEP Kinase and Pepsin

C
RuBisCO and PEP Carboxylase

D
PEP Carboxylase and RuBisCO

Solution

C4 cycle ...carbon dioxide fixation in mesophyll cells by PEP CARBOXYLASE and synthesis of sugars in bundle sheath cells by RuBISCO
So, the correct answer is 'PEP Carboxylase and RuBisCO'
Question 9
1 / -0

Chlorophyll pigment in chloroplast is present in?

A
Stroma

B
Thylakoid

C
Quantasome

D
$$2$$) & $$3$$) both
Question 10
1 / -0

The enzyme RuBP caboxylase

A
Activity occurs in $$C_3$$ and $$C_4$$ plants

B
In present in inner thylakoid membrane

C
Is low temperature sensitive enzyme

D
Shows greater affinity for $$O_2$$ than for $$CO_2$$

Solution

RuBP carboxylase is the enzyme that plays a major role in the fixation of carbon dioxide in the calvin cycle.
In C3 plants, RuBP carboxylase is located in the stroma of all chloroplasts. However, in C4 plants it is present in the chloroplasts of the bundle sheath cells.

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Photosynthesis in Higher Plants Test - 73

Result

Photosynthesis in Higher Plants Test - 73

Score

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Rank

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SHARING IS CARING

Question 1

Proteins

Carbohydrates

Glucose

Nucleic acid

Question 2

ATP

NADPH

$$CO_2$$

Both ATP and NADPH

Solution

Question 3

16

32

64

48

Question 4

Nostoc

Frankia

Anabaena

Rhodospirillum

Solution

Question 5

In $$C_3$$ plant - mesophyll cell and In $$C_4$$ plant - Bundle sheath cell

In $$C_3$$ plant - Bundle sheath cell and In $$C_4$$ plant - mesophyll cell

In $$C_4$$ plant - Bundle sheath cell and In $$C_3$$ plant - Bundle sheath cell

In $$C_3$$ plant - mesophyll cell and In $$C_4$$ plant - mesophyll cell

Solution

Question 6

Inner mitochondrial membrane

Thylakoid membrane

Cell wall

More than one option is correct

Question 7

$$CO_2$$ fixation

$$CO_2$$ reduction

Photolysis of water

All of these

Solution

Question 8

RuBisCO and PEP Kinase

PEP Kinase and Pepsin

RuBisCO and PEP Carboxylase

PEP Carboxylase and RuBisCO

Solution

Question 9

Stroma

Thylakoid

Quantasome

$$2$$) & $$3$$) both

Question 10

Activity occurs in $$C_3$$ and $$C_4$$ plants

In present in inner thylakoid membrane

Is low temperature sensitive enzyme

Shows greater affinity for $$O_2$$ than for $$CO_2$$

Solution

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