Tag: respiration-the energy producing system

Questions Related to respiration-the energy producing system

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

Show answer
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

Show answer
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

Show answer
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

Show answer
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'.