Respiratory Quotient

Q. Respiratory quotient of carbohydrates is

1. 1
2. less than 1
3. 0
4. greater than 1

Q. How does temperature affect the rate of respiration?

1. Increase in optimum temperature decreases the rate of respiration
2. Decrease in optimum temperature increases the rate of respiration
3. None of the above
4. Increase in optimum temperature increases the rate of respiration

Q.

Which of the following statements best describes the relationship between photosynthesis and respiration?

1. Respiration is the reversal of the biochemical pathways of photosynthesis.

2. Photosynthesis stores energy in complex organic molecules, while respiration releases it

3. Photosynthesis occurs only in plants and respiration occurs only in animals.

4. ATP molecules are produced in photosynthesis and used up in respiration.

Q.

What is Ganongs respirometer used for?

Q.

What does it mean when RER is greater than 1?

Q.

What is the RQ of anaerobic respiration?

Q.

${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6\to {\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}+{\mathrm{CO}}_2+\mathrm{Energy}\mathrm{is}$

1. Respiration reaction

2. Anaerobic reaction

3. Aerobic reaction

4. Photosynthesis reaction

Q.

What is the Respiratory Quotient of Organic Acids?

Q.

Respiratory quotient (RQ) for fatty acid is

1. <1

2. 1

3. >1

4. 0

Q. The most readily available source of energy for the body is

1. fat
2. glycogen
3. glucose
4. protein

Q. What happens to the respiration rate when a plant is transferred from water to salt solution?

1. Its respiration rate increases
2. Respiration rate will first increase and then decrease
3. Salt solution will have no effect on respiration
4. Its respiration rate decreases

Q. Respiratory quotient during cellular respiration depends on ______.

1. Nature of enzymes
2. Nature of substrate
3. Amount of $C{O}_2$ released
4. Amount of $O_2$ utilised

Q. RQ for fermentation in yeast is

1. 0
2. ∞
3. >1
4. 1

Q. If RQ is less than 1.0 in a respiratory metabolism, it would mean that ___.

1. the oxidation of the respiratory substrate consumed more oxygen than the CO₂ released
2. the oxidation of the respiratory substrate consumed less oxygen than the CO₂ released
3. carbohydrates are used as a respiratory substrate
4. organic acids are used as respiratory substrate

Q. Which is active in Maize?

1. Zymase
2. Maltase
3. Diastase
4. Urease

Q. The respiratory Quotient (RQ) of glucose is

1. 0.5
2. 0.7
3. 1
4. 1.5

Q. Respiratory quotient during cellular respiration depends on ______.

1. Nature of enzymes
2. Nature of substrate
3. Amount of $C{O}_2$ released
4. Amount of $O_2$ utilised

Q. Assertion : Under condition of high light intensity and limited CO2 supply, photorespiration has a useful role in protecting the plants from photooxidative damage.

Reason : If enough CO2 is not available to utilize light energy for carboxylation to proceed, the excess energy may not cause damage to plants.

1. If both assertion and reason are true and reason is correct explanation of assertion.
2. If both assertion and reason are true but reason is not the correct explanation of assertion.
3. If assertion is true but reason is false.
4. If both assertion and reason are false.

Q. Refrigerated fruits maintain flavor and taste for longer period due to

1. non-availability of O2
2. presence of excess of CO2
3. presence of excess humidity
4. slower rate of respiration

Q. Respiratory Quotient (RQ) 0.7 belongs to :

1. Carbohydrates
2. Fat
3. Protein
4. Alcohol

Q. Rate of respiration is measured using

1. speedometer
2. barometer
3. manometer
4. respirometer

Q. Which of the following is the correct order with respect to the respiratory quotient of various substrates?

1. Fats > Carbohydrates > Proteins
2. Fats > Proteins > Carbohydrates
3. Proteins > Fats > Carbohydrates
4. Carbohydrates > Proteins > Fats

Q.

Complete the following analogy.
1. Respiration : throughout day and night :: _________ : only during daytime
2. In presence of oxygen : __________ :: In absence of oxygen : anaerobic respiration
3. Green plants: autotrophs :: non-green plants and animals : ___________
4. By-product during photosynthesis : oxygen :: By-product during respiration : __________

Q. Respiratory Quotient (RQ) value of tripalmitin is

1. 0.09
2. 0.9
3. 0.7
4. 0.07

Q. Mention the respiratory quotient(RQ) values for carbohydrates, fats and proteins during aerobic respiration.

Q. Ultimate source of energy for living beings is

1. 
   Fats
2. 
   Sunlight
3. 
   ATP
4. 
   Carbohydrates

Q. RQ of protein is

1. 0.7
2. 1
3. 0.9
4. more than one

Q.

Define RQ. What is its value for fats?

Q. What is RQ for human fat?

1. 0.673
2. 0.655
3. 0.703
4. 0.825

Q. How does temperature affect the rate of respiration?

1. Increase in optimum temperature decreases the rate of respiration
2. Increase in optimum temperature increases the rate of respiration
3. Decrease in optimum temperature increases the rate of respiration
4. None of the above