Energy Expenditure in Calvin Cycle

Q. Synthesis of one molecule of glucose requires

1. $6C{O}_2$, 18 ATP and 12 NADPH
2. $6C{O}_2$, 12 ATP and 18 NADPH
3. $6C{O}_2$, 30 ATP and 12 NADPH
4. $6C{O}_2$, 38 ATP and 12 NADPH

Q.

The quantum yield in photosynthesis is

1. More than $1$

2. $1$

3. Less than $1$

4. $0$

Q. For production of one molecule of glucose in Calvin cycle, choose the appropriate number of molecules of $\mathrm{ATP}$ and $\mathrm{NADPH}$ required:

1. 18 $\mathrm{ATP}$ and 12 $\mathrm{NADPH}$
2. 9 $\mathrm{ATP}$ and 6 $\mathrm{NADPH}$
3. 6 $\mathrm{ATP}$ and 6 $\mathrm{NADPH}$
4. 6 $\mathrm{ATP}$ and 9 $\mathrm{NADPH}$

Q.

Question 39
Six turns of Calvin cycle are required to generate one mole of glucose. Explain.

Q.

Question 20
3CO2+9ATP+6NADPH+water⟶Glyceraldehyde 3−phosphate+9ADP+6NADP++8Pi.3CO_2+9ATP+6NADPH+water \longrightarrow Glyceraldehyde~3-phosphate+9ADP+6NADP^++8Pi.3CO22​+9ATP+6NADPH+water⟶Glyceraldehyde 3−phosphate+9ADP+6NADP++8Pi.

Analyze the above reaction and answer the following questions.
How many molecules of ATP and NADPH are required to fix one molecule of CO2?CO_2?CO2

Q. In an embryo with a complete deficiency of pyruvate kinase, how many net moles of ATP are generated during the conversion of 1 mole of glucose to 1 mole of pyruvate?

1. 0
2. 1
3. 2
4. 3

Q. To form one molecule of glyceraldehyde phosphate in Calvin cycle

1. 9 ATP and 36 NADPH are required
2. 6 ATP and 6 NADPH are required
3. E ATP and 3 NADPH are required
4. 9 ATP and 6 NADPH are required

Q.

CO${}_2$ fixation occurs within the stroma.

1. False

2. True

Q. The assimilatory power required in reduction phase of calvin cycle per one $C{O}_2$ molecule is ________.

1. 2 ATP and 2 NADPH

2. 2 ATP and 3 NADPH

3. 3 ATP and 2 NADPH

4. 1 ATP and 2 NADPH

Q.

Chlorophyll in plants converts light energy into

1. heat energy

2. chemical energy

3. mechanical energy

4. electric energy

Q. For production of one molecule of glucose in Calvin cycle, choose the appropriate number of molecules of $\mathrm{ATP}$ and $\mathrm{NADPH}$ required:

1. 18 $\mathrm{ATP}$ and 12 $\mathrm{NADPH}$
2. 9 $\mathrm{ATP}$ and 6 $\mathrm{NADPH}$
3. 6 $\mathrm{ATP}$ and 6 $\mathrm{NADPH}$
4. 6 $\mathrm{ATP}$ and 9 $\mathrm{NADPH}$

Q. The assimilatory power required in reduction phase of calvin cycle per one $C{O}_2$ molecule is ________.

1. 2 ATP and 2 NADPH
2. 2 ATP and 3 NADPH
3. 1 ATP and 2 NADPH
4. 3 ATP and 2 NADPH

Q. $NADP{H}_2$ is also called as

1. Real power
2. Oxidising agent
3. Reducing power
4. Power house of energy

Q.

What do you understand by the term energy transformation? Support your answer by an example.

Q.

CO${}_2$ fixation occurs within the stroma.

1. True

2. False

Q. Synthesis of one molecule of glucose requires

1. $6C{O}_2$, 18 ATP and 12 NADPH
2. $6C{O}_2$, 12 ATP and 18 NADPH
3. $6C{O}_2$, 30 ATP and 12 NADPH
4. $6C{O}_2$, 38 ATP and 12 NADPH

Q. ATP molecules required for synthesis of a glucose molecule in Calvin Benson cycle are

1. 12
2. 36
3. 18
4. 38

Q. Which of the following option is correct for the given statements, X, Y and Z?
Statement X- RQ of fat containing palmatic acid is less than one, whereas RQ of glucose is 1.
Statement Y- Fat containing palmatic acid need less $O_2$ for respiration and glucose need more oxygen for respiration.
Statement Z- Fat containing palmatic acid has much less oxygen in its constitution as compared to glucose.

1. Statement X and Y are correct and statement Z is incorrect
   Statements Y is correct explanation for X
2. Statements X, Y and Z are correct. Statements Y and 'Z are correct explanation for X
3. Statements 'X and Z are incorrect and statement Y is correct
4. Statements X and Z are correct and statement Y is incorrect
   Statements Z is correct explanation for X

Q.

Quantum yield of photosynthesis is

1. 33%

2. 9%

3. 12%

4. 8%

Q. Source of $C{O}_2$ for photosynthesis during day, in CAM plant is

1. 3-PGA
2. Malic acid
3. Oxalo-acetic acid
4. Pyruvate

Q.

CO${}_2$ fixation occurs within the stroma.

1. True

2. False

Q.

Quantum yield of photosynthesis is

1. 33%
2. 9%
3. 12%
4. 8%

Q. ____________ are required for the formation of one molecule of glucose during the Calvin pathway.

1. $3C{O}_2+18ATP+18NADPH$
2. $6C{O}_2+12ATP$
3. $6C{O}_2+18ATP+12NADPH$
4. $6C{O}_2+18ATP+24NADPH$

Q. How many Calvin cycles are required to produce 5 molecules of glucose?

1. 90
2. 60
3. 15
4. 30

Q. How many Calvin cycles are required to produce 5 molecules of glucose?

1. 60
2. 15
3. 30
4. 90

Q. For production of one molecule of glucose in Calvin cycle, choose the appropriate number of molecules of $\mathrm{ATP}$ and $\mathrm{NADPH}$ required:

1. 18 $\mathrm{ATP}$ and 12 $\mathrm{NADPH}$
2. 9 $\mathrm{ATP}$ and 6 $\mathrm{NADPH}$
3. 6 $\mathrm{ATP}$ and 6 $\mathrm{NADPH}$
4. 6 $\mathrm{ATP}$ and 9 $\mathrm{NADPH}$

Q. catalyses the carboxylation of ribulose-1, 5-bisphosphate using carbon dioxide.

1. DHAP
2. 3-PGA
3. Fo/F1 subunit
4. RuBisCO

Q. The plant has an autotrophic nutrition system. In this organisms synthesize their own food, like carbohydrate, from water and $C{O}_2$ with help of chlorophyll in presence of sunlight. This process is known as photosynthesis. What is the correct sequence of reactions which takes place during the photosynthesis process?
$P:\to$ Absorption of light energy of chlorophyll
$Q:\to$ Conversion of light energy into chemical energy
$R:\to$ Reduction of $C{O}_2$ into carbohydrate

1. $P,Q,andR$
2. Only $P$
3. Only $P$ and $Q$
4. Only $R$

Q. In each of the following situations what happens to the rate photosynthesis?
No rainfall in the area

Q. In CAM cycle, during the formation of malic acid, stomata remains

1. Closed
2. Semi open
3. Always closed
4. Open