Tag: human respiration

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Questions Related to human respiration

Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

During which of the following activity the breathing rate is maximum?

  1. Sleeping

  2. Jumping

  3. Writing

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Breathing rate is maximum in jumping. Because heart rate is faster during jumping which makes quicker pulse. The muscles need more oxygen and more energy at this time. As level of activity increases, breathing rate increases to bring more air into the lungs so that lungs can pump more oxygen into the blood.
So the correct answer is 'Jumping'
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Which of the following process determines the breathing rate?

  1. Inhalation

  2. Exhalation

  3. Respiration

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Breathing rate is defined as the number of times a person breathes per minute. A breath counts as one exhale and inhale. The total no. of inhale and exhale in one in one minute gives breathing rate.
So the correct answer is 'Both A and B'.
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Increased breathing rate involves

  1. Greater production of energy

  2. Greater amount of oxygen

  3. Greater blood flow

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Breathing rate is defined as the no. of times a person breathes in a minute. Breathing rate increases during physical exercise. During that time the body requires a higher amount of oxygen and metabolism. 
So the correct answer is 'Both A and B'.
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Breathing rate increase during physical exercise because

  1. Cells require extra oxygen

  2. Cells require extra energy

  3. Cells require carbon dioxide

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Breathing rate is defined as the no. of times a person breathes in a minute. Breathing rate increase during physical exercise because at that time body demands a high amount of oxygen in the blood for metabolism. The body requires extra energy to carry out muscular activity.
So the correct answer is 'Both A and B'.
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Breathing rate ........... during physical exercise.

  1. Increases

  2. Decreases

  3. Remains same

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Breathing rate is defined as the no. of times a person breath in one minute. It increases during physical exercise just to fulfill the increased demand of oxygen in the body because of the physical activity and increased metabolic rate.
So the correct answer is 'Increases'.
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Which of the following activities is characterised by minimum breathing rate?

  1. Sleeping

  2. Washing of clothes

  3. Cleaning of floor

  4. Dancing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
During sleeping, the body has the least activities to carry out, it does not require a high amount of oxygen. So it has minimum metabolism and hence minimum breathing rate.
So the correct answer is 'Sleeping'.
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Breathing rate can be measured by

  1. Heartbeat count

  2. Amount of blood

  3. Haemoglobin count

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The breathing rate can be measured by the heartbeat count. This is because the heart is connected to the lungs via the pulmonary artery. In a healthy person with the normal heartbeat, 60-100 per minute will have 12-20 breathes in a minute.
So the correct answer is 'Heartbeat count'.
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Breathing rate increases which of the following value?

  1. Pulse rate

  2. Metabolic rate

  3. Exhalation

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The breathing rate is no. of times a person breath in one minute. Breathing rate increases when there is high pulse rate and urgent requirement of oxygen in blood. due to which metabolic rate increases in the body. The exhalation also increases to pass out the carbon dioxide out of the body in high amount to increase oxygen concentration in the body.
So the correct answer is 'All of the above'.
Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

Which component of air is exhaled by the body?

  1. Nitrogen

  2. Oxygen

  3. Carbon dioxide

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

Carbon dioxide is a waste product of the body. It is majorly exhaled out by the body so that it will reduce the competition to gets bind to the haemoglobin with oxygen. It is saturated with water vapours.

So the correct answer is 'Carbon dioxide'.

Multiple choice evs respiration in organism human respiration the mechanism of breathing breathing and its movements

During inhalation and exhalation which of the following is seen

  1. Ribs move up and outward, diaphragm moves down

  2. Ribs move down and inwards, diaphragm moves up

  3. Ribs move down and outwards, diaphragm moves down

  4. Ribs move up and inwards, diaphragm moves down
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation
During inhalation, the external intercostal muscles contract and lifts ribs outward, while diaphragm become flat and moves down thereby increases the volume of thoracic cavity.
During exhalation, the external intercostal muscles return the diaphragm and ribs to their normal thoracic volume. Ribs moves down and inwards while diaphragm moves up.
So the correct answer is Both A and B'.