QBManager

Respiration in Plants

283802 Respiratory quotient of oxalic acid is:

1 1.5

2 1.0

3 4

4 0.7

Explanation:

Exp:C The organic acid (oxalic acid) consume less oxygen due to its adequate presence and gives R.Q. more than one.
$\begin{aligned} 2 (COOH)_{6} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ RQ = \frac{4 {CO}_{2}}{1 O_{2}} = 4 \end{aligned}$
So, the R.Q. of oxalic acid is 4

BVP-2013

Respiration in Plants

283803 RQ value of 4 may be expected for the complete oxidation of which one of the following?

1 Glucose

2 Malic acid

3 Oxalic acid

4 Tartaric acid

Explanation:

Exp:C The oxalic acid consume less oxygen and release more carbon dioxide, so that R.Q is more than one.
$\begin{matrix} 2 C_{2} H_{2} O_{4} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ R.Q = \frac{{CO}_{2}}{O_{2}} = \frac{4}{1} = 4 \end{matrix}$
- When carbohydrates are the respiratory substrate:The value of R.Q. $= 1.0$
-When organic acid are respiratory substrate:
Then value of R.Q. is $< 1$ (more than 1.)
- When lipid or fats and proteins are respiratory substrate, R.Q. Value will be less than one. It is because lipids are poor in $O_{2}$ for their oxidation.

Kerala PMT-2009 Punjab MET-2007

Respiration in Plants

283797 R.Q. of sprouting potato tubers will be:

1 1

2

< 1

3

> 1

4 0

Karnataka CET-2002

Respiration in Plants

283804 Which one has the lowest respiratory quotient?

1 Glucose

2 Tripalmitin

3 Oxalic acid

4 Malic acid

Explanation:

Exp:B Respiratory quotient is the ratio of the volume of ${CO}_{2}$ released and $O_{2}$ consumed in respiration.
- The respiratory quotient (RQ) depends upon the type of respiratory substrate used during respiration.
It is less than 1 for fat. If tripalmitin is the respiratory substrate the ratio would be about 0.72
$\underset{(Tripalmitin)}{(C_{51} H_{98} O_{6})} + 145 O_{2} \to 10 {CO}_{2} + 98 H_{2} O Energy$
- R.Q. value is greater than unity (1) as in organic acid $O_{2}$ consumption is less than ${CO}_{2}$ release more.

BCECE-2015

Respiration in Plants

283802 Respiratory quotient of oxalic acid is:

1 1.5

2 1.0

3 4

4 0.7

Explanation:

Exp:C The organic acid (oxalic acid) consume less oxygen due to its adequate presence and gives R.Q. more than one.
$\begin{aligned} 2 (COOH)_{6} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ RQ = \frac{4 {CO}_{2}}{1 O_{2}} = 4 \end{aligned}$
So, the R.Q. of oxalic acid is 4

BVP-2013

Respiration in Plants

283803 RQ value of 4 may be expected for the complete oxidation of which one of the following?

1 Glucose

2 Malic acid

3 Oxalic acid

4 Tartaric acid

Explanation:

Exp:C The oxalic acid consume less oxygen and release more carbon dioxide, so that R.Q is more than one.
$\begin{matrix} 2 C_{2} H_{2} O_{4} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ R.Q = \frac{{CO}_{2}}{O_{2}} = \frac{4}{1} = 4 \end{matrix}$
- When carbohydrates are the respiratory substrate:The value of R.Q. $= 1.0$
-When organic acid are respiratory substrate:
Then value of R.Q. is $< 1$ (more than 1.)
- When lipid or fats and proteins are respiratory substrate, R.Q. Value will be less than one. It is because lipids are poor in $O_{2}$ for their oxidation.

Kerala PMT-2009 Punjab MET-2007

Respiration in Plants

283797 R.Q. of sprouting potato tubers will be:

1 1

2

< 1

3

> 1

4 0

Karnataka CET-2002

Respiration in Plants

283804 Which one has the lowest respiratory quotient?

1 Glucose

2 Tripalmitin

3 Oxalic acid

4 Malic acid

Explanation:

Exp:B Respiratory quotient is the ratio of the volume of ${CO}_{2}$ released and $O_{2}$ consumed in respiration.
- The respiratory quotient (RQ) depends upon the type of respiratory substrate used during respiration.
It is less than 1 for fat. If tripalmitin is the respiratory substrate the ratio would be about 0.72
$\underset{(Tripalmitin)}{(C_{51} H_{98} O_{6})} + 145 O_{2} \to 10 {CO}_{2} + 98 H_{2} O Energy$
- R.Q. value is greater than unity (1) as in organic acid $O_{2}$ consumption is less than ${CO}_{2}$ release more.

BCECE-2015

Respiration in Plants

283802 Respiratory quotient of oxalic acid is:

1 1.5

2 1.0

3 4

4 0.7

Explanation:

Exp:C The organic acid (oxalic acid) consume less oxygen due to its adequate presence and gives R.Q. more than one.
$\begin{aligned} 2 (COOH)_{6} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ RQ = \frac{4 {CO}_{2}}{1 O_{2}} = 4 \end{aligned}$
So, the R.Q. of oxalic acid is 4

BVP-2013

Respiration in Plants

283803 RQ value of 4 may be expected for the complete oxidation of which one of the following?

1 Glucose

2 Malic acid

3 Oxalic acid

4 Tartaric acid

Explanation:

Exp:C The oxalic acid consume less oxygen and release more carbon dioxide, so that R.Q is more than one.
$\begin{matrix} 2 C_{2} H_{2} O_{4} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ R.Q = \frac{{CO}_{2}}{O_{2}} = \frac{4}{1} = 4 \end{matrix}$
- When carbohydrates are the respiratory substrate:The value of R.Q. $= 1.0$
-When organic acid are respiratory substrate:
Then value of R.Q. is $< 1$ (more than 1.)
- When lipid or fats and proteins are respiratory substrate, R.Q. Value will be less than one. It is because lipids are poor in $O_{2}$ for their oxidation.

Kerala PMT-2009 Punjab MET-2007

Respiration in Plants

283797 R.Q. of sprouting potato tubers will be:

1 1

2

< 1

3

> 1

4 0

Karnataka CET-2002

Respiration in Plants

283804 Which one has the lowest respiratory quotient?

1 Glucose

2 Tripalmitin

3 Oxalic acid

4 Malic acid

Explanation:

Exp:B Respiratory quotient is the ratio of the volume of ${CO}_{2}$ released and $O_{2}$ consumed in respiration.
- The respiratory quotient (RQ) depends upon the type of respiratory substrate used during respiration.
It is less than 1 for fat. If tripalmitin is the respiratory substrate the ratio would be about 0.72
$\underset{(Tripalmitin)}{(C_{51} H_{98} O_{6})} + 145 O_{2} \to 10 {CO}_{2} + 98 H_{2} O Energy$
- R.Q. value is greater than unity (1) as in organic acid $O_{2}$ consumption is less than ${CO}_{2}$ release more.

BCECE-2015

Respiration in Plants

283802 Respiratory quotient of oxalic acid is:

1 1.5

2 1.0

3 4

4 0.7

Explanation:

Exp:C The organic acid (oxalic acid) consume less oxygen due to its adequate presence and gives R.Q. more than one.
$\begin{aligned} 2 (COOH)_{6} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ RQ = \frac{4 {CO}_{2}}{1 O_{2}} = 4 \end{aligned}$
So, the R.Q. of oxalic acid is 4

BVP-2013

Respiration in Plants

283803 RQ value of 4 may be expected for the complete oxidation of which one of the following?

1 Glucose

2 Malic acid

3 Oxalic acid

4 Tartaric acid

Explanation:

Exp:C The oxalic acid consume less oxygen and release more carbon dioxide, so that R.Q is more than one.
$\begin{matrix} 2 C_{2} H_{2} O_{4} + O_{2} \to 4 {CO}_{2} + 2 H_{2} O \\ R.Q = \frac{{CO}_{2}}{O_{2}} = \frac{4}{1} = 4 \end{matrix}$
- When carbohydrates are the respiratory substrate:The value of R.Q. $= 1.0$
-When organic acid are respiratory substrate:
Then value of R.Q. is $< 1$ (more than 1.)
- When lipid or fats and proteins are respiratory substrate, R.Q. Value will be less than one. It is because lipids are poor in $O_{2}$ for their oxidation.

Kerala PMT-2009 Punjab MET-2007

Respiration in Plants

283797 R.Q. of sprouting potato tubers will be:

1 1

2

< 1

3

> 1

4 0

Karnataka CET-2002

Respiration in Plants

283804 Which one has the lowest respiratory quotient?

1 Glucose

2 Tripalmitin

3 Oxalic acid

4 Malic acid

Explanation:

Exp:B Respiratory quotient is the ratio of the volume of ${CO}_{2}$ released and $O_{2}$ consumed in respiration.
- The respiratory quotient (RQ) depends upon the type of respiratory substrate used during respiration.
It is less than 1 for fat. If tripalmitin is the respiratory substrate the ratio would be about 0.72
$\underset{(Tripalmitin)}{(C_{51} H_{98} O_{6})} + 145 O_{2} \to 10 {CO}_{2} + 98 H_{2} O Energy$
- R.Q. value is greater than unity (1) as in organic acid $O_{2}$ consumption is less than ${CO}_{2}$ release more.

BCECE-2015

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