Tag: transport of respiratory gases

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Questions Related to transport of respiratory gases

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

The condition of compression of the chest or abdomen is known as 

  1. Perinatal asphyxia

  2. Compressive asphyxia

  3. Anoxia

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Compressive asphyxia (also called as chest compression) is mechanically limiting expansion of the lungs by compressing the torso, hence interfering with breathing. Compressive asphyxia occurs when the chest or abdomen is compressed posteriorly. In accidents, the term traumatic asphyxia or crush asphyxia usually refers to compressive asphyxia resulting from being crushed or pinned under a large weight or force. 

Therefore, the correct answer is option B.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Hypoxia causes .......... in healthy people which travel to high altitudes. 

  1. Breathing sickness

  2. Altitude sickness

  3. Asthma

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Altitude sickness is the negative health effect of high altitude, caused by rapid exposure to low amounts of oxygen(hypoxia) at high elevation. Hypoxia is the deficiency of an adequate supply of oxygen to the body tissues. It occurs due to reduced oxygen tension in arterial blood. Symptoms of altitude sickness may include headaches, vomiting, tiredness, trouble sleeping, and dizziness. Hence, Hypoxia causes altitude sickness in healthy people which travel to high altitudes.

So, the correct answer is 'altitude sickness'.
Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Which of the following are symptoms of generalized hypoxia? 

  1. Hallucinations

  2. Nausea

  3. Breathlessness

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Hypoxia is the deficiency of an adequate supply of oxygen to the body tissues. It occurs due to reduced oxygen tension in arterial blood. A condition in which the body as a whole (generalized hypoxia) or a region of the body (regional hypoxia) is deprived of adequate oxygen supply. The symptoms of generalized hypoxia include Nausea, Changes in the color of your skin, Confusion, Cough, Hallucinations, Fast heart rate, Rapid breathing, breathlessness, Sweating. Hence, hallucinations, nausea, and breathlessness are the symptoms of generalized hypoxia.

So, the correct answer is 'all the above'.
Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Mountain sickness results due to

  1. Anaemic hypoxia

  2. Arterial hypoxia

  3. Lack ofsufficient RBCs

  4. Lack ofsufficient WBCs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Arterial hypoxia (also known as hypoxiation or anoxemia) is a condition in which the body or a region of the body is deprived of adequate oxygen supply. Hypoxia may be classified as either generalized, affecting the whole body, or local, affecting a region of the body. Generalized hypoxia occurs in healthy people when they ascend to high altitude, where it causes altitude sickness or mountain sickness leading to potentially fatal complications: high altitude pulmonary edema (HAPE) and high altitude cerebral edema (HACE). Thus, option B is correct.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Ischemia is insufficient blood flow to tissues which can result in 

  1. Asphyxiation

  2. Hypoxia

  3. Anemia

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ischemia, meaning insufficient blood flow to a tissue, can also result in hypoxia. This is called as 'ischemic hypoxia'. This can include an embolic event, a heart attack that decreases overall blood flow, or trauma to a tissue that results in damage. An example of insufficient blood flow causing local hypoxia is gangrene that occurs in diabetes. 

Therefore, the correct answer is option B.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Perinatal asphyxia is seen in 

  1. Adults

  2. Old people

  3. Newborn infant

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Perinatal asphyxia is the medical condition resulting from deprivation of oxygen (hypoxia) to a newborn infant long enough to cause apparent harm. It results most commonly from a drop in maternal blood pressure or interference during delivery with blood flow to the infant's brain. 

Therefore, the correct answer is option C.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Asphyxia occurs due to.

  1. Rise in level of $CO _2$
  2. Fall in level of $CO _2$
  3. Rise of $O _2$ level
  4. Fall in $O _2$ level
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Asphyxia is a condition of severely deficient supply of oxygen to the body that arises from being unable to breathe normally, often caused by an accumulation of carbon dioxide in the blood.

Multiple choice biology the respiratory system factors affecting breathing exchange of gases transport of respiratory gases

Which one of the following can respire in total absence of air (anoxybiosis)?

  1. Amoeba

  2. Bed bug

  3. Hydra

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

Tapeworms live in the human gut and can be up to 9 meters long. Parasites have specific features which enable them to survive in or on their host. They use anaerobic respiration, so that they can survive without oxygen.