Tag: human respiratory system

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Questions Related to human respiratory system

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

Direct respiration occurs in.

  1. Human beings

  2. Prawn

  3. Insects

  4. Fish
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Insects respire via a tracheal system, which is a network of air tubes that brings oxygen directly to the body cells without the need for blood transport, known as direct respiration. Human beings, prawn, and fish rely on indirect respiration via blood and specialized respiratory organs.

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

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

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The conducting part of the respiratory system includes the nose, pharynx, larynx, trachea, bronchi, and bronchioles. Its primary functions are to transport, filter, warm, and humidify the air. The alveoli are the specific site for gas exchange, which is part of the respiratory zone, not the conducting zone.

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

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.

  1. a, c

  2. b, d

  3. c, d

  4. a, b
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (c) is correct as functional residual capacity is the volume of air remaining in the lungs after a normal expiration. Statement (d) is correct as total lung capacity is the maximum volume of air the lungs can hold after a forced inspiration. Statement (a) is incorrect because inspiration is primarily facilitated by the diaphragm and external intercostal muscles, not internal ones. Statement (b) is incorrect because a healthy human typically breathes about 6000-8000 ml of air per minute.

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

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.

  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
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.

Multiple choice zoology respiratory system human respiratory system

Which of the following can be considered as odd one?

  1. Larynx

  2. Glucagon

  3. Testosterone

  4. Prolactin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Larynx is the sound box while the rest three glucagon, testosterone and prolactin are hormones.
So, the correct answer is 'Larynx'.
Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

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

  1. Dutrochet

  2. Pasteur

  3. Cruickshank

  4. Lavosier
Reveal answer Fill a bubble to check yourself
D Correct answer
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. 

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

Cellular respiration is

  1. Continuous

  2. Intermittent

  3. Performed at intervals

  4. Held when energy is required
Reveal answer Fill a bubble to check yourself
A Correct answer
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. 

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

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

  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.
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. Breathing

  2. Cellular respiration

  3. Pulmonary ventilation

  4. Fermentation
Reveal answer Fill a bubble to check yourself
A,B,C Correct answer
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'.