Photosynthesis in Higher Plants Test

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Photosynthesis in Higher Plants Test - 58

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Weekly Quiz Competition

Question 1
1 / -0

How many times the calvin cycle occur to produce two molecules of sucrose _________.

A
$$6$$

B
$$12$$

C
$$18$$

D
$$24$$

Solution

Calvin cycle need to occur 12 times to produce two molecules of sucrose. To form 1 surplus G3P, 3 carbons are needed which is 3 times Calvin cycle. So, to create 2 G3P for 1 sucrose formation, 6 times calvin cycle are needed. So, for 2 sucrose molecules, 12 times calvin cycle occurs.
Question 2
1 / -0

Calvin cycle has three stages.
$$1$$. Reduction during which carbohydrate is formed at the expense of photochemically made ATP and NaDPH.
$$2$$. Regeneration during which carbon dioxide acceptor $$1, 5$$-RuBP is formed.
$$3$$. Carboxylation during which $$CO_2$$ combines with $$1, 5-$$RuBP.
Identify the correct sequence.

A
$$3, 1, 2$$

B
$$3, 2, 1$$

C
$$1, 2, 3$$

D
$$2, 1, 3$$
Question 3
1 / -0

Which of the following step of photosynthesis is not directey involve in ATP synthesis or consumption?

A
Corboxylation of dark Rection

B
Reduction of dark reaction

C
Cyclic photo phosphorylation of light reaction

D
Regeneration of dark reaction
Question 4
1 / -0

In the process of ATP synthesis, oligomycin and DCCD act at which place in figure:

A
A

B
B

C
C

D
D.
Question 5
1 / -0

ATP is known as energy currency of a cell. ATP is synthesized from ADP and Pi. The reaction is catalyzed by an enzyme called as ATP synthase. When the enzyme and substrate (ADP) are distant inside the cell, the reaction cannot take place spontaneously. Which of the following statements best explains the cause for the ATP synthase and ADP to interact?

A
Electronegativity of ADP attracts ATP synthase

B
ADP will be actively pumped to ATP synthase

C
Random movements will bring ADP to ATP synthase

D
ADP and ATP synthase always remain bound to oxysomes
Question 6
1 / -0

Phycoerythrin, chlorophyll a and chlorophyll d are characteristics of.

A
Phaeophyceae

B
Xanthophyceae

C
Chlorophyceae

D
Rhodophyceae

Solution

Answer is option D i.e. "Rhodophyceae"
The members of Rhodophyceae are commonly called red algae because of the predominance of the red pigment Phycoerythin in their body. Apart from this, other major pigments found in them are chlorophyll A and chlorophyll D
Question 7
1 / -0

Tropical plant like sugarcane show high efficiency of $$CO_{2}$$ fixation because of

A
TCA cycle

B
Calvin cycle

C
Hatch and Slack cycle

D
EMP pathway

Solution

Hatch and Slack pathway is the pathway which mainly prevents the association of enzyme RuBisCO with oxygen and increases the fixation of carbon dioxide by the enzyme. Tropical plants like sugarcane have high efficiency of carbon dioxide fixation as they have PEP carboxylase to capture carbon dioxide in the mesophyll cells and forms oxaloacetic acid (OAA). The OAA then converts into malate (4 carbons). Malate enters bundle sheath cells and releases the carbon dioxide to RuBisCO for fixation.
So, the correct answer is option C.
Question 8
1 / -0

Consider the following processes.
a. $$O_2$$ evolution
b. $$CO_2$$ fixation
c. NADPH formation
d. Chlorophyll biosynthesis.
Which of these do not occur in thylakoids?

A
$$1$$ and $$2$$

B
$$2$$ and $$3$$

C
$$3$$ and $$4$$

D
$$2$$ and $$4$$
Question 9
1 / -0

Match List I (scientist) with List II (Isotope Used) and selct the correct answer using the code given below the lists:
List I List II
A. Calvin 1. 180
B. Ruben and Kamen 2. 32p
C. Volkin and Astrachan 3. 14C
D. Meselson and stahl 4. 15N

A
A-3, B-2, C-1, D-4

B
A-4, B-1, C-2, D-3

C
A-4, B-2, C-1, D-3

D
A-3, B-1, C-2, D-4
Question 10
1 / -0

The idea that pH gradients could provide energy for ATP formation in chloroplasts and mitochondria was first proposed by ____________.

A
Bassham

B
Hill

C
Mitchell

D
Thompson

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	List I		List II
A.	Calvin	1.	180
B.	Ruben and Kamen	2.	32p
C.	Volkin and Astrachan	3.	14C
D.	Meselson and stahl	4.	15N

Photosynthesis in Higher Plants Test - 58

Result

Photosynthesis in Higher Plants Test - 58

Score

-

Rank

-

SHARING IS CARING

Question 1

$$6$$

$$12$$

$$18$$

$$24$$

Solution

Question 2

$$3, 1, 2$$

$$3, 2, 1$$

$$1, 2, 3$$

$$2, 1, 3$$

Question 3

Corboxylation of dark Rection

Reduction of dark reaction

Cyclic photo phosphorylation of light reaction

Regeneration of dark reaction

Question 4

A

B

C

D.

Question 5

Electronegativity of ADP attracts ATP synthase

ADP will be actively pumped to ATP synthase

Random movements will bring ADP to ATP synthase

ADP and ATP synthase always remain bound to oxysomes

Question 6

Phaeophyceae

Xanthophyceae

Chlorophyceae

Rhodophyceae

Solution

Question 7

TCA cycle

Calvin cycle

Hatch and Slack cycle

EMP pathway

Solution

Question 8

$$1$$ and $$2$$

$$2$$ and $$3$$

$$3$$ and $$4$$

$$2$$ and $$4$$

Question 9

A-3, B-2, C-1, D-4

A-4, B-1, C-2, D-3

A-4, B-2, C-1, D-3

A-3, B-1, C-2, D-4

Question 10

Bassham

Hill

Mitchell

Thompson

User

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