Photosynthesis in Higher Plants Test

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Photosynthesis in Higher Plants Test - 14

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Weekly Quiz Competition

Question 1
1 / -0

Which factor is not limiting in normal conditions for photosynthesis?

A
Light intensity

B
CO$$_{2}$$

C
Temperature

D
Chlorophyll
Solution
- Chlorophyll is not counted as a limiting factor of photosynthesis in normal conditions.
- It is because chlorophyll is a pigment, which is present in plants and not an external factor.
- It is involved in the trapping of light for the light dependant reaction of photosynthesis.
- The major limiting factors for photosynthesis are light intensity, temperature, and carbon dioxide levels.
So, the correct answer is option D.
Question 2
1 / -0

Chloroplast contains maximum quantity of

A
Pyruvic carboxylase

B
Hexokinase

C
RuDP carboxylase

D
None of the above

Solution

RuBP-oxygenase is a form of Rubisco, which constitutes 16% of chloroplast protein. it is the most abundant protein on this planet.
Question 3
1 / -0

Chlorophyll $$a$$ is found in

A
All oxygen releasing photosynthetic forms

B
All plants except fungi

C
All higher plants that photosynthesize

D
All photosynthetic prokaryotes and eukaryotes

Solution

Chlorophyll $$a$$ is a specific form of chlorophyll used in oxygenic photosynthesis. This photosynthetic pigment is essential in eukaryotes, cyanobacteria, and prochlorophytes because of its role as a primary electron donor in the electron transport chain.
So correct answer is all oxygen releasing photosynthetic forms.
Question 4
1 / -0

Chlorophyll a absorb max of

A
Red light

B
Blue light

C
Green light

D
Yellow light

Solution

Chlorophyll a differs from chlorophyll b as it has a methyl group at the C-7 position. It is a form of chlorophyll used in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light. It reflects green light.
So, the correct answer is option B.
Question 5
1 / -0

In the bacterial photosynthesis, hydrogen donor is

A
H$$_{2}$$S

B
NH$$_{2}$$

C
H$$_{2}$$O

D
H$$_{2}$$SO$$_{4}$$
Question 6
1 / -0

Which of the following product of Hill's are used in Blackman's reaction?

A
$$NAD$$, $$ATP$$

B
$$ATP$$, $$NADH_{2}$$

C
$$ATP$$, $$NADPH_{2}$$

D
$$ADP$$, $$NAD$$
Solution
- Blackman's reactions or dark reactions take place in the stroma of the chloroplast. In dark reactions, sugars are synthesized from carbon dioxide by using $$ATP$$ and $$NADPH_2$$, which are end products of Hill's reaction or light reaction.
Thus, the correct answer is option C.
Question 7
1 / -0

Which of the following may show photosynthesis in moonlight

A
some thermal algae

B
some marine algae

C
some fresh water algae

D
None of the above

Solution

Normally plants ultilize sunlight but marine algae also use moon light, photosynthesis even occur in electric light.
Question 8
1 / -0

The most vital process for the existence of life on earth is

A
Communication in animals

B
Photosynthesis by plants

C
Reproduction in plants and animals

D
Respiration in animals

Solution

Photosynthesis is the life saving process because it enables the producers, that is the green plants to produce their own food. This is consumed by the consumers. In addition to it, this process helps in absorption of CO$$_2$$, which is a green house gas. It helps in the liberation of oxygen, the gas required in plenty for respiration of all living beings.
So, the correct answer is option B.
Question 9
1 / -0

Which of the following equation can be appropriate for photosynthesis?

A
$$6CO_{2}+7H_{2}O\rightarrow C_{2}H_{12}O_{6}+6O_{2}$$

B
$$6CO_{2}+12H_{2}O\rightarrow C_{6}H_{12}O_{6}+6H_{2}O+6O_{2}$$

C
$$12CO_{2}+6H_{2}O\rightarrow 2C_{6}H_{12}O_{6}+6O_{2}$$

D
None of the above
Solution
- Photosynthesis is the process of conversion of light energy to chemical energy. it mainly takes place in two steps, light reaction, and dark reaction.
- The light reaction occurs in the thylakoid while the dark reaction takes place in the stroma of the chloroplast.
So, the correct answer is option B.
Question 10
1 / -0

As compared to a $$C_{3}$$ plant,how many additional molecules of ATP are needed for net production of one molecule hexose sugar by $$C_{4}$$ plants______________.

A
Two

B
Six

C
Zero

D
Twelve

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Re-Attempt Weekly Quiz Competition

Photosynthesis in Higher Plants Test - 14

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Photosynthesis in Higher Plants Test - 14

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SHARING IS CARING

Question 1

Light intensity

CO$$_{2}$$

Temperature

Chlorophyll

Solution

Question 2

Pyruvic carboxylase

Hexokinase

RuDP carboxylase

None of the above

Solution

Question 3

All oxygen releasing photosynthetic forms

All plants except fungi

All higher plants that photosynthesize

All photosynthetic prokaryotes and eukaryotes

Solution

Question 4

Red light

Blue light

Green light

Yellow light

Solution

Question 5

H$$_{2}$$S

NH$$_{2}$$

H$$_{2}$$O

H$$_{2}$$SO$$_{4}$$

Question 6

$$NAD$$, $$ATP$$

$$ATP$$, $$NADH_{2}$$

$$ATP$$, $$NADPH_{2}$$

$$ADP$$, $$NAD$$

Solution

Question 7

some thermal algae

some marine algae

some fresh water algae

None of the above

Solution

Question 8

Communication in animals

Photosynthesis by plants

Reproduction in plants and animals

Respiration in animals

Solution

Question 9

$$6CO_{2}+7H_{2}O\rightarrow C_{2}H_{12}O_{6}+6O_{2}$$

$$6CO_{2}+12H_{2}O\rightarrow C_{6}H_{12}O_{6}+6H_{2}O+6O_{2}$$

$$12CO_{2}+6H_{2}O\rightarrow 2C_{6}H_{12}O_{6}+6O_{2}$$

None of the above

Solution

Question 10

Two

Six

Zero

Twelve

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