Tag: human respiratory system

Questions Related to human respiratory system

Direct respiration occurs in.

respiration and excretion in animals human respiratory system evs respiration in human beings respiratory organs in humans respiration in humans

  1. Human beings

  2. Prawn

  3. Insects

  4. Fish

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Correct Option: A

Which is not function of 'conductiing part' of respiratory system?

respiration and excretion in animals human respiratory system evs respiration in human beings respiratory organs in humans respiration in humans

  1. Clears the air from foreign particles

  2. Humidifies the air

  3. Brings the air to body temperature

  4. It is site for diffusion of oxygen and carbon dioxide

  5. Transports air to alveoli

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Correct Option: D

Choose the correct statements with regard to human respiration:
(a) Inspiration is faciliated by contraction of phrenic and internal intercostal muscles
(b) Healthy human can inhale or exhale about $2000-3000$ml of air/min
(c) Functional residual capacity represents the volume of left out air in lungs after expiration
(d) Total lung capacity is the total volume of air that would be accomodated in the lunds after forced inspiration.

respiration and excretion in animals human respiratory system evs respiration in human beings respiratory organs in humans respiration in humans

  1. a, c

  2. b, d

  3. c, d

  4. a, b

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Correct Option: C

Respiratory quotient for three different substrates was calculated and tubulated as shown here.

Substrate R.Q.
XYZ 0.911.3

Identify X, Y and Z and select the correct option regarding them.

respiration and excretion in animals human respiratory system evs respiration in human beings respiratory organs in humans respiration in humans

  1. X - Protein, Y - Fats, Z - Glucose

  2. X - Glucose, Y - Protein, Z - Organic acid

  3. X - Protein, Y - Glucose, Z - Organic acid

  4. X - Organic acid, Y - Protein, Z - Fats

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Correct Option: C
Explanation:

Respiratory quotient if the protein is 0.8-0.9

For glucose- 1
For  organic acids -1.3
So, the correct option is 'X - Protein, Y - glucose, Z - organic acids'.

Which of the following can be considered as odd one?

zoology respiratory system human respiratory system

  1. Larynx

  2. Glucagon

  3. Testosterone 

  4. Prolactin

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Correct Option: A
Explanation:
Larynx is the sound box while the rest three glucagon, testosterone and prolactin are hormones.
So, the correct answer is 'Larynx'.

Who is credited with study of external respiration for the first time?

zoology respiratory system phases in respiration human respiratory system parts of respiration

  1. Dutrochet

  2. Pasteur

  3. Cruickshank

  4. Lavosier

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Correct Option: D
Explanation:

External respiration is the process of gaseous exchange between the external environment and the blood stream. Antonie Lavoiser, a French Nobleman is considered as father of modern chemistry who along with chemistry also contributed in the fields of biology, finance and economics. He explained combustion and respiration in terms of chemical reactions involving oxygen. He showed that respiration was a slow combustion of organic material using inhaled oxygen. 

Thus, the correct answer is option D. 

Cellular respiration is

zoology respiratory system phases in respiration human respiratory system parts of respiration

  1. Continuous

  2. Intermittent

  3. Performed at intervals

  4. Held when energy is required

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Correct Option: A
Explanation:

Cellular respiration is a continuous process of oxidation of food to produce energy. The energy produced is utilized by human beings to carry out all the life processes such as digestion, excretion, circulation etc. Since these are continuous processes and do not stop, so they require continuous energy. If the energy is produced intermittently it will slow down these processes and affect the individual. 

Thus, the correct answer is option A. 

The rate at which oxygen moves from the alveoli of our lungs into our blood

zoology respiratory system phases in respiration human respiratory system parts of respiration

  1. Depends on the difference in oxygen concentration between the alveoli and the blood.

  2. Depends on the color of the alveoli.

  3. Depends on the availability of energy to transport gases across the membrane.

  4. None of the above.

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Correct Option: A
Explanation:

The rate at which oxygen moves from the alveoli of our lungs into our blood depends on the difference in oxygen concentration between the alveoli and the blood. More is the oxygen absorbed by our lungs, more is it utilized by body muscles.

During respiration, exchange of gases takes place in

zoology respiratory system phases in respiration human respiratory system parts of respiration

  1. Trachea and Larynx

  2. Alveoli of lungs

  3. Alveoli and throat

  4. Throat and Larynx

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Correct Option: B
Explanation:

Alveoli are tiny sacs from the bronchiolar extensions within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream. 

Utilization of $O _2$ by the cells to derive energy from nutrients for performing various activities and resultant release of $CO _2$ as by-produced is called

zoology respiratory system phases in respiration human respiratory system parts of respiration

  1. Breathing

  2. Cellular respiration

  3. Pulmonary ventilation

  4. Fermentation

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Correct Option: A,B,C
Explanation:
 Name of the process  By-product
 Breathing   CO2
 Cellular respiration   CO2 + H2O+ 38 ATP
 Pulmonary ventilation  Commonly known as breathing, so as breathing the by-product is  CO2
 Fermentation(takes place in anaerobic condition) Ethanol + CO2 (alcohol fermentation)Lactate (lactic acid fermentation).

So, the correct answer is 'Breathing', 'Cellular respiration' and 'Pulmonary ventilation'.