Tag: introduction to respiration

Questions Related to introduction to respiration

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

The respiratory loss of producers, herbivores and carnivores are respectively

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

  1. 105, 20%,30%

  2. 20%, 30%, 60% 

  3. 20%, 40%, 80%

  4. None of these

Show answer
Correct Option: B
Explanation:

The amount of energy and biomass in the producers of the food chain is 100%. At each successive level, the energy and biomass are lost. The organisms at each level use energy for respiration. This is called respiration loss. When producers are eaten by the herbivores, there is 20% respiratory loss as producers use about 20% of energy in the form of respiration. Similarly, when herbivores are eaten by carnivores, there is 30% respiratory loss as 30% of energy is used by herbivores. Also, about 60% of the energy is used by carnivores during respiration. Hence, respiratory loss from carnivores to decomposer is 60%. 

Thus, the correct answer is '20%, 30%, 60%'.

Among the following biogeochemical cycles, which one does not have losses due to respiration?

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

  1. Phosphorus

  2. Nitrogen

  3. Sulphur

  4. All of the above

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Correct Option: D
Explanation:

Phosphorus, nitrogen and sulphur do not loss due to respiration because they are not particularly involved in gaseous exchange.

Which one of the following scientists is credited with overthrowing the phlogiston theory and establishing the actual nature of chemical oxidations on combustions and their similarity to respiration in animals?

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

  1. Antoine Lavoisier

  2. Joseph Priestly

  3. Jean Baptiste van Helmont

  4. Joseph Dalton Hooker

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Correct Option: A
Explanation:

The phlogiston theory is a scientific theory which states that the fire-like element is referred to phlogiston which is released during the process of combustion and explains the process of combustion and rusting which is together called as oxidation.

Antoine Lavoisier opposed this theory of phlogiston, he is called as father of modern chemistry. He discovered oxygen and told about its properties and chemical reactions. He has given a theory of combustion in which he has mentioned the rate of respiration and the relation between combustion and respiration, where oxygen is used in both the process.
So , correct option is ' Antoine Lavoisier ' . 

Who discovered cellular respiration?

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

  1. Priestley

  2. Paul Erlich

  3. Thomas Adams

  4. Benda

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Correct Option: C
Explanation:
Cellular respiration is a process takes place in the cells of the organism to convert biochemical energy from nutrients into ATP. It include breaking down of sugar in the presence of oxygen. This process was discovered by Thomas Adams.
So, the correct answer is 'Thomas Adams'.

Which of the following gas is known as fixed air?

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

  1. Oxygen

  2. Carbon dioxide

  3. Nitrogen

  4. None of the above

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Correct Option: B
Explanation:
Carbon dioxide is known as fixed air by Dr. Joseph Black because it can be absorbed or fixed by strong base.
So the correct answer is 'Carbon dioxide'.

Which of the following show higher rate of respiration?

biology photosynthesis and respiration experiments on photosynthesis cellular respiration introduction to respiration

  1. Collenchyma

  2. Leaf

  3. Dry seeds

  4. Germinating seeds

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Correct Option: D
Explanation:

An alarmed rate of respiration is seen in germination of seeds. Higher respiration rate is seen in floral vegetative bud, germinating seedlings, young leaves, etc.