EASY
Earn 100

Pharynx is part of the digestive and respiratory system.

50% studentsanswered this correctly

Important Questions on Respiration and Circulation

EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
The maximum number of oxygen molecules that can bind to one molecule of hemoglobin is:
MEDIUM
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Human fetal hemoglobin differs from the adult hemoglobin in that it has:
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Which of the following factors are favourable for the formation of oxyhaemoglobin in the alveoli human lungs?
MEDIUM
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals

Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.

EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Match the following
  List-I   List-II
(A) Moist body wall (I) Insects
(B) Tracheal system (II) Amphibian larvae
(C) Book lungs (III) Earthworms
(D) Gills (IV) Aves
    (V) Spiders

The correct match is
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
A person suddenly starts coughing while swallowing food. This coughing would have been due to improper movement of
EASY
Biology>Physiology>Respiration and Circulation>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

EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
The unpaired cartilages supporting the wall of larynx are      
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
If the number of alveoli in an individual is doubled without changing the total alveolar volume, the gas exchange capacity of the lungs will:
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Which of the following is not the function of conducting part of respiratory system?
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Which is the correct sequence of the air passage in man?
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
In jelly fishes, majority of gaseous exchange takes place through the ______.
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
The figure given below shows a small part of human lung where exchange of gas takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function.

Question Image
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Sound is produced in mammals
MEDIUM
Biology>Physiology>Respiration and Circulation>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
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Select the correct statement.
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Diffusion membrane is made up of which of the following layers?
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Which of the following are respiratory organs of scorpion?
MEDIUM
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
In the process of respiration, the exchange of gases takes place in
EASY
Biology>Physiology>Respiration and Circulation>Respiratory Organs in Animals
Carbon dioxide (CO2) is released during