Photosynthesis Test

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Photosynthesis Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following wavelength occur in red part of the spectrum?

A
470 nm

B
390 nm

C
680 nm

D
830 nm

Solution

Wavelength occur in red part of the spectrum is 650-760 nm.
Question 2
1 / -0

When a cell converts light energy into chemical energy, which of the following reaction would take place.

A
ADP + IP = ATP

B
ATP – IP = ADP

C
AMP + IP = ADP

D
GDP + P = GTP

Solution

ADP (adenosine diphosphate) + IP (inorganic phosphate) = ATP (adenosine triphosphate) reaction takes place in the presence of light when a cell converts light energy into chemical energy.
Question 3
1 / -0

Energy transfer in photosynthesis occurs as

A
Phycoerythrin → Phycocyanin → Carotenoid → Chlorophyll a

B
Chlorophyll b → Carotenoid → Phycoerythrin → Chlorophyll a

C
Phycocyanin → Phycoerythrin → Carotenoid → Chlorophyll a

D
Chlorphyll → Carotenoid → Phycocyanin → Chlorphyll a

Solution

Energy transfer in photosynthesis occurs as Phycocyanin → Phycoerythrin →Carotenoid → Chlorophyll a sequence.
Question 4
1 / -0

The main difference between chlorophyll ‘a’ and ‘b’ is

A
Chlorophyll ‘a’ is linear chain compound and ‘b’ is branched chain

B
Chlorophyll ‘a’ has no Mg⁺ ion in centre of molecule

C
In chlorophyll ‘a’ there is CH₃ group whereas in ‘b’ it is CHO group

D
All of the above

Solution

The main difference between chlorophyll ‘a’ and ‘b’ is that in chlorophyll ‘a’ there is CH₃ group whereas in ‘b’ it is CHO group.
Question 5
1 / -0

During aerobic respiration per molecule of glucose produces

A
2 ATP molecules

B
50 ATP molecules

C
34 ATP molecules

D
36/38 ATP molecules

Solution

Aerobic respiration is a series of enzyme-controlled reactions that release the energy stored up in carbohydrates and lipids during photosynthesis and make it available to living organisms. During aerobic respiration, oxidation of one molecule of glucose produces 36/38 ATP molecules (net).
Question 6
1 / -0

Dark reaction of photosynthesis is known as

A
Aphotic action

B
Black action

C
Blackman’s reaction

D
None of the above

Solution

Dark reaction was first of all established by Blackman that’s why it is called Blackman’s reaction.
Question 7
1 / -0

Assertion: Photomodulation of flower is a phytochrome regulated process.

Reason: Active form of phytochrome (P_FR) directly induces floral induction in shoot buds.

A
Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B
Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

C
Assertion is true but Reason is false

D
Both Assertion and Reason are false

Solution

Floral induction in shoot buds is phytochrome regulated. There are two interconvertible form of Phytochrome, PR (absorb red light) and PFR (absorb far red light).

Pfr is an active form of phytochrome which causes floral induction in the shoot.
Question 8
1 / -0

All plastids have essentially same structure because

A
They have to perform the same function

B
They are localized in aerial parts of plants

C
All plastids store starch, lipid and proteins

D
One type of plastid can be differentiated into another type of plastids depending on cell requirements
Solution
Plastids are limited by a double membrane and an intermembrane space. Inside, they contain other membrane limited compartments like thylakoids of chloroplasts and tubules of the chromoplasts.
- Plastids also contain DNA and the needed molecular machinery to grow and divide, both processes under the control of the cell nuclear genes. Every plastid in a cell comes from another existing plastid, and are transmitted to the next plant generation included in gametes during fertilization.
- Chloroplasts may also differentiate into other types of plastids and other plastids may differentiate into chloroplasts

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Photosynthesis Test - 3

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Photosynthesis Test - 3

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Question 1

470 nm

390 nm

680 nm

830 nm

Solution

Question 2

ADP + IP = ATP

ATP – IP = ADP

AMP + IP = ADP

GDP + P = GTP

Solution

Question 3

Phycoerythrin → Phycocyanin → Carotenoid → Chlorophyll a

Chlorophyll b → Carotenoid → Phycoerythrin → Chlorophyll a

Phycocyanin → Phycoerythrin → Carotenoid → Chlorophyll a

Chlorphyll → Carotenoid → Phycocyanin → Chlorphyll a

Solution

Question 4

Chlorophyll ‘a’ is linear chain compound and ‘b’ is branched chain

Chlorophyll ‘a’ has no Mg+ ion in centre of molecule

In chlorophyll ‘a’ there is CH3 group whereas in ‘b’ it is CHO group

All of the above

Solution

Question 5

2 ATP molecules

50 ATP molecules

34 ATP molecules

36/38 ATP molecules

Solution

Question 6

Aphotic action

Black action

Blackman’s reaction

None of the above

Solution

Question 7

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

Assertion is true but Reason is false

Both Assertion and Reason are false

Solution

Question 8

They have to perform the same function

They are localized in aerial parts of plants

All plastids store starch, lipid and proteins

One type of plastid can be differentiated into another type of plastids depending on cell requirements

Solution

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Chlorophyll ‘a’ has no Mg⁺ ion in centre of molecule

In chlorophyll ‘a’ there is CH₃ group whereas in ‘b’ it is CHO group