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Respiration Questions and Answers (Q&A)

The correct answer is option 1.
The role of xylem in the transport system of plants is to carry water and dissolved minerals from the roots, up the stem and leaves.

Xylem is one of the transport system of plants, the other being phloem.

The role of phloem, the other transport system in plant is to carry glucose and other nutrients such as amino acids from the leaves to all other parts of the plants where it is used and store for future use. The movement in phloem is bidirectional but the reverse is the case in xylem.
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  • The external intercostal muscle construct
  • The rib cage move upwards and inwards
  • The diapharm constructs and move down
  • The volime of thoracic cavity increases
  • Air pressure in the thoracic cavity decreases
  • Air pressure in the atmosphere increases
  • The air breathe in

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Haemoglobin. Haemoglobin is to carry the oxygen from the diffusion to all other parts of body

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Gaseous exchange is dependent on diffusion. diffusion depends on diffusion gradient i.e. difference in gaseous concentration between two regions. for air to move in and out of the lungs, the gaseous pressure in the lungs is not the same as atmospheric pressure.

1 Answer

During inhalation, our rib cage moves up and out. The primary organ of our respiration system is lungs. Other components of the respiratory system convey air to the lungs, such as the trachea (the windpipe) which branches into smaller structures called bronchi.

The process of respiration (breathing) is divided into two distinct phases.

• Inspiration (inhalation),
• Expiration (exhalation).

The diaphragm contracts and pulls downward during Inspiration while the muscles between the ribs contract and pull upward. This increases the size of the thoracic cavity and decreases the pressure inside. As a result, air rushes in and fills the lungs. But during Expiration, the diaphragm relaxes, and the volume of the thoracic cavity reduces, while the pressure within it increases. As a result, the lungs contract and air is forced out.

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Gases that passes through the wall of alveolus through the process of diffusion.

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The answer to this is A. ATP is the ability to transport organic chemicals within the cells of the body. Cyanide targets this ability so the cells will not be able to transport the much-needed chemicals. It can kill people within 2 to 5 minutes. There may be some people who will consume a certain amount of cyanide without realizing it. The cyanide will be metabolized and will be released outside the body in the form of urine.

Certain levels of cyanide might make them sick but those who will intake lethal doses of cyanide might go into a coma or might die. The lethal dose of cyanide is about 200 to 300 Mg. This will depend on the person who is has consumed the cyanide.

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Correct answer is option D
Pulmonary edema is likely to place this patient at risk for acute hypercapnic respiratory failure. It can be said that this patient takes overdose of morphine which is known to cause respiratory depression.

Pulmonary edema will causes hypoxemia and hypercapnia in this patient. The hypothetical mechanism of pulmonary edema in morphine overdose includes negative pressure pulmonary edema from inspiring and expiring against closed (collapsed) glottis.

Guillain Barre Syndrome (GBS) is an autoimmune disorder, which can also lead to hypercapnic respiratory failure, it usually starts with paralysis of the lower limb and it ascends up. Nothing in this woman’s history suggests GBS.
ARDS and large pulmonary embolism are less likely to cause acute hypercapnic respiratory failure in this patient.

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The exchange of gases at a cellular level within the body

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