Factors affecting breathing - class-X
Description: factors affecting breathing | |
Number of Questions: 25 | |
Created by: Amal Dixit | |
Tags: biology option d: human physiology the respiratory system respiration-the energy producing system |
What is altitude of troposphere?
The condition of compression of the chest or abdomen is known as
Hypoxia causes .......... in healthy people which travel to high altitudes.
Which of the following are symptoms of generalized hypoxia?
Mountain sickness results due to
Ischemia is insufficient blood flow to tissues which can result in
Perinatal asphyxia is seen in
The condition of deficiency of oxygen is known as
Asphyxia occurs due to.
Which one of the following can respire in total absence of air (anoxybiosis)?
The mountaineers carry oxygen with them because.
A condition in which body is deprived of adequate oxygen is called as
Ravi, who lived at sea level, had around 5 million RBC per cubic millimeter of his blood. Later when he lived at an altitude of 18,000 ft, showed around 8 million RBC per cubic millimeter of blood. This is an adaptation because
When the oxygen supply to the tissues is inadequate, the condition is?
Ascent of high mountains may cause altitude sickness in men. Prime cause of this is
High percentage of $CO _2$ and very low percentage of $O _2$ may make a person unconscious due to.
Read the statements carefully and choose the option representing true statements.
(a) $pO _2$ in the atmospheric air does not change with altiude
(b) Most people who live at high altitude develop polycythemia due to hypoxia
(c) Excess inflation to the lungs is prevented by Hering-Breuer's reflex
(d) While transporting $CO _2$ in blood, blood does not become acidic due to presence of blood buffers.
State whether the following statements are true or false.
The condition in which the body suffers from acute oxygen shortage is called hypoxia.
When the blood contains a high percentage of $CO _2$ and a very low percentage of $O _2$ the breathing stops and the person becomes unconscious. This condition is known as.
When oxygen supply to tissues is inadequate, the condition is?
What is usually present at the time of asphyxiation?
A child was killed through asphyxiation. Postmortem confirmed it because a piece of lung put in water.
Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?
Asphyxia occurs due to
Diffusion is insufficient to meet .......... requirement of multicellular organisms like humans.