Tag: the respiratory system

Questions Related to the respiratory system

The respiration carried in the absence of oxygen is called

biology the respiratory system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. Aerobic respiration

  2. Anaerobic respiration

  3. Mastication

  4. Haemoglobin respiration

Show answer
Correct Option: B
Explanation:

  • In anaerobic respiration, glucose breaks down without oxygen.
  •  The chemical reaction transfers energy from glucose to the cell.
  •  Anaerobic respiration produces lactic acid, rather than carbon dioxide and water. Hence, The respiration carried in the absence of oxygen is called anaerobic respiration.
So, the correct answer is 'anaerobic respiration'.

In anaerobic respiration

biology the respiratory system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. O$ _{ 2 }$ is taken in.

  2. CO$ _{ 2 }$ is taken in.

  3. O$ _{ 2 }$ is given out.

  4. CO$ _{ 2 }$ is given out.

Show answer
Correct Option: D
Explanation:

Anaerobic respiration is a type of respiration that does not use oxygen. It is used when there is not enough oxygen for aerobic respiration. 
Anaerobic respiration in some microorganisms (such as yeast) produces ethanol and carbon dioxide, as opposed to lactic acid.

So, the correct answer is option D.

Which of the following will survive in a closed container and perform fermentation?

biology the respiratory system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. Algae

  2. Yeast

  3. Virus

  4. Protozoa

Show answer
Correct Option: B
Explanation:

  • Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom.
  •  Yeast is a microorganism that can undergo aerobic as well as anaerobic respiration. 
  • Yeast requires oxygen for growth. In addition to oxygen, they require a basic substrate such as sugar. 
When yeast cells are kept in an anaerobic environment (i.e., without oxygen)can ferment sugars to alcohol and carbon dioxide. They produce ethyl alcohol and carbon dioxide from simple sugars such as glucose and fructose. Hence, the yeast can survive in a closed container and perform fermentation.
So, the correct answer is 'yeast'.

The organisms that undergo anaerobic respiration to make alcohol are

biology the respiratory system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. Bacteria

  2. Yeast

  3. Algae

  4. Protozoa

Show answer
Correct Option: B
Explanation:
Yeast can undergo both aerobic and anaerobic respiration. Anaerobic respiration occurs in yeast in the absence of oxygen. It is also known as fermentation. The products of anaerobic respiration in yeast are carbon dioxide, alcohol and 2 molecules of ATP.
So the correct answer is 'Yeast'.

ATP is stored on the myosin cross bridges for immediate energy After 5 to 6 seconds, this supply is exhausted and the muscle must rely on to quickly produce more ATP.

biology the respiratory system anaerobic respiration in organisms anaerobic and aerobic respiration cellular respiration

  1. Phosphocreatine

  2. Lactic acid

  3. Acetyl choline

  4. Pyruvic acid

Show answer
Correct Option: B
Explanation:

  • Myofibril activity is required for muscle contraction on the molecular level. 
  • When ATP binds to myosin, it separates from the actin of the myofibril, which causes a contraction.
  • The muscle contraction cycle is triggered by calcium ions binding to the protein complex troponin, exposing the active-binding sites on the actin.
  • ATP then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.
  • When ATP is exhausted lactic acid is produced 
So, the correct option is 'lactic acid'.

What is altitude of troposphere?

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

  1. 7km

  2. 8km

  3. 9km

  4. 10km

Show answer
Correct Option: B

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

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

  1. Perinatal asphyxia

  2. Compressive asphyxia

  3. Anoxia

  4. None of the above

Show answer
Correct Option: B
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.

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

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

  1. Breathing sickness

  2. Altitude sickness

  3. Asthma

  4. All of the above

Show answer
Correct Option: B
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'.

Which of the following are symptoms of generalized hypoxia? 

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

  1. Hallucinations

  2. Nausea

  3. Breathlessness

  4. All of the above

Show answer
Correct Option: D
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'.

Mountain sickness results due to

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

  1. Anaemic hypoxia

  2. Arterial hypoxia

  3. Lack ofsufficient RBCs

  4. Lack ofsufficient WBCs

Show answer
Correct Option: B
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.