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What is external respiration?

Important Questions on Breathing and Exchange of Gases

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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals

Select the correct events that occur during inspiration.

(a) Contraction of diaphragm
(b) Contraction of external intercostal muscles
(c) Pulmonary volume decreases
(d) Intrapulmonary pressure increases

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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Differentiate between Aerobic respiration and Anaerobic respiration.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
What is meant by cellular respiration? Write what happens in cells in the presence or in the absence of oxygen.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Lungs comprise of
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Oblique fissure in human is present in:
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals

How energy is formed from oxidation of carbohydrates, fats and proteins? Correct the diagram given below.

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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Why don't plants have a consolidated respiratory system?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
What are the assumptions made during the calculation of net gain of ATP?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
The function of surfactant is/ are:
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Give two differences between respiration and burning?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Why do fish continuously gulp water?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals

Which one of the following statements is incorrect?

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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals

Give scientific reasons.

Oxygen is necessary for complete oxidation of glucose.

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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Skin is an accessory organ of respiration in
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Differentiate between aerobic respiration and fermentation.
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
What is the major similarity between respiration and combustion?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Given below are four matchings of an animal and its kind of respiratory organ

(i). Silverfish — Tracheal tubes

(ii). Scorpion — Book lung

(iii). Sea squirt — Pharyngeal gills

(iv). Dolphin — Skin

The correct matchings are
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
What is the significance of the step-wise release of energy in respiration?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
What are the main steps in aerobic respiration? Where does it take place?
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Biology>Human Physiology>Breathing and Exchange of Gases>Respiration: Types, Phases and Different Respiratory Organs in Animals
Concerning the respiratory apparatus, pick out the incorrect pair(s)