Tag: respiration-the energy producing system

Questions Related to respiration-the energy producing system

During strenuous exercise glucose is converted into.

respiration-the energy producing system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. Glycogen

  2. Pyruvic acid

  3. Starch

  4. Lactic acid

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Correct Option: D

Glycolysis yields approximately ___ percent of the total energy of glucose.

respiration-the energy producing system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. 5%

  2. 10%

  3. 15%

  4. 2%

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Correct Option: A

How many PGAL are produced by glycolysis of three molecules of glucose? How many ATP are released by respiration of these PGAL till formation of $CO _2$ and $H _2O$ 

respiration-the energy producing system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. 4 PGAL 40 ATP

  2. 6 PGAL 120 ATP

  3. 4 PGAL 80 ATP

  4. 5 PGAL 160 ATP

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Correct Option: B

State whether the following statements are true or false.
Obligate anaerobes are killed by molecular oxygen.

respiration-the energy producing system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. True

  2. False

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Correct Option: A
Explanation:

Obligate means restricted to the particular environment so the anaerobes that grow and multiply in the absence of molecular oxygen and are not able to survive in the presence of oxygen.

So, the correct option is 'True'.    

The term respiration was given by

respiration-the energy producing system experiments on photosynthesis cellular respiration introduction to respiration

  1. Lavosier

  2. Dutrochet

  3. Sachs

  4. Krebs

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Correct Option: B
Explanation:

Henri Dutrochet, a French physiologist who is known for his valuable works in animal and plant physiology coined the term 'respiration'. He also discovered and named the process of osmosis (passage of solvent through a semipermeable membrane) that occurs at cellular level in both plants and animals. 

So the correct answer is 'Dutrochet'.

Which of the following is not a reason that breathing air is easier than breathing water'?

respiration-the energy producing system experiments on photosynthesis cellular respiration introduction to respiration

  1. A given volume of air is easier to move across the respiratory organs than the same volume of water.

  2. Air holds more oxygen per unit volume than water.

  3. Water breathers have a difficult time ridding themselves of CO, because $CO _2$ does not dissolve well in water.

  4. Temperature increases affect the $O _2$ content of water more than they do that of air.

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Correct Option: A

Name the scientist who demonstrated that breath is caused by the formation of carbon dioxide in blood. 

respiration-the energy producing system experiments on photosynthesis cellular respiration introduction to respiration

  1. Thomas Adams

  2. J Haldane

  3. J Priestley

  4. None of the above

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Correct Option: B
Explanation:

In 1906, Haldane and Priestley discovered that respiratory reflex i.e. breath is caused by an excess of carbon dioxide in the blood and not by a lack of oxygen. They described the regulation of respiratory drive by carbon dioxide and its effects on blood hydrogen ion concentration The high ability of deoxygenated haemoglobin to bind with carbon dioxide was named as Haldane effect. Thus the correct answer is option B.

Who discovered oxygen gas?

respiration-the energy producing system experiments on photosynthesis cellular respiration introduction to respiration

  1. Priestley

  2. Erlich

  3. Chadwick

  4. Tansley

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Correct Option: A
Explanation:
Oxygen gas was discovered by the scientist Joseph Priestley in 1773. It is the most important gas responsible for the life on earth. It is produced by plants by the process of photosynthesis but consumed by the animals by the process of respiration.
So, the correct answer is 'Priestly'.

Glucose administered orally will be used up in.

respiration-the energy producing system experiments on photosynthesis cellular respiration introduction to respiration

  1. Excretion

  2. Digestion

  3. Respiration

  4. Circulation

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Correct Option: C

Health man can inspire or expire approximately _________ ml of air per minute.

respiration-the energy producing system experiments on photosynthesis cellular respiration introduction to respiration

  1. $a = 9.8\ ml, b = 6000\ ml$ to $8000\ ml, c = 12\ to \ 16, d = 3$

  2. $a = 5\ ml, b = 500\ ml, c = 12\ to \ 16, d = -3$

  3. $a = 5\ ml, b = 6000\ ml$ to $8000\ ml, c = 12\ to \ 16, d = 3$

  4. $a = 5\ ml, b = 6000\ ml$ to $8000\ ml, c = 18 times, d = 7$

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Correct Option: A