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Biology · Question 781
The primary chemical stimulus for breathing is the concentration of:
Oxygen in blood
Oxygen in muscles
Carbon dioxide in blood
Carbon dioxide in muscles
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Correct answer: C
Carbon dioxide in blood
Carbon dioxide in blood is the answer marked in the supplied practice source.
Biology · Question 782
Point out the FALSE statement about respiration:
In emphysema the walls of alveoli break and there is more surface area
Gases can easily pass through the walls of the alveoli
Dust particles can damage the lung by irritating the inner alveoli surface
Gas exchange in lungs is very efficient because lungs provide large surface area
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Correct answer: A
In emphysema the walls of alveoli break and there is more surface area
In emphysema the walls of alveoli break and there is more surface area is the answer marked in the supplied practice source.
Biology · Question 783
A disease involving the breakdown of air sacs of the lungs is:
Pneumonia
Asthma
Emphysema
Bronchitis
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Correct answer: C
Emphysema
Emphysema is the answer marked in the supplied practice source.
Biology · Question 784
Which process does not occur in the nasal cavity?
Exchange of gases
Trapping of large dust particles
Warming of the inhaled air
Humidification of the inhaled air
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Correct answer: A
Exchange of gases
Exchange of gases is the answer marked in the supplied practice source.
Biology · Question 785
What type of blood vessels surrounds the alveoli?
Arteriole
Capillary
Vein
Artery
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Correct answer: B
Capillary
Capillary is the answer marked in the supplied practice source.
Biology · Question 786
Define cellular respiration.
The process of taking in oxygen and releasing carbon dioxide
The process in which carbon-hydrogen bonds in food are broken by oxidation-reduction reactions
The mechanical process of breathing
The breakdown of food molecules to release energy
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Correct answer: B
The process in which carbon-hydrogen bonds in food are broken by oxidation-reduction reactions
The process in which carbon-hydrogen bonds in food are broken by oxidation-reduction reactions is the answer marked in the supplied practice source.
Biology · Question 787
What is aerobic respiration?
Respiration without using oxygen
Respiration using oxygen with complete oxidation of food
The process of breathing
The exchange of gases in alveoli
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Correct answer: B
Respiration using oxygen with complete oxidation of food
Respiration using oxygen with complete oxidation of food is the answer marked in the supplied practice source.
Biology · Question 788
In what form is energy available to organisms?
Glucose
ADP
ATP
AMP
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Correct answer: C
ATP
ATP is the answer marked in the supplied practice source.
Biology · Question 789
Define gaseous exchange.
Taking in oxygen and giving out carbon dioxide
The cellular process of energy production
The process of breathing
The movement of air through respiratory tract
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Correct answer: A
Taking in oxygen and giving out carbon dioxide
Taking in oxygen and giving out carbon dioxide is the answer marked in the supplied practice source.
Biology · Question 790
Define breathing.
The cellular process of energy production
The movement of oxygen in blood
The oxidation of food molecules
The mechanical process of air exchange
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Correct answer: D
The mechanical process of air exchange
The mechanical process of air exchange is the answer marked in the supplied practice source.