Respiratory Organs in Animals
Respiratory Organs in Animals: Overview
This Topic covers sub-topics such as Respiratory Organs, Cutaneous Respiration, Branchial Respiration and, Pulmonary Respiration
Important Questions on Respiratory Organs in Animals
Which one of the following statements is incorrect?

The exchange of gases with the surrounding atmosphere for respiration takes place through the skin in which of the following organisms?

Given below are four matching of an animals and its respiratory organ. Which of them are correctly matched?
I. Silver fish – Trachea
II. Scorpion – Book lung
III. Sea Squirt – Pharyngeal gills
IV. Dolphin – Skin

Some organs and their functions are provided. How many are correctly matched?
I. Lungs - Sterols, waxes and hydrocarbons synthesis or secretion.
II. Sebaceous glands - Sterols, waxes and hydrocarbons containing.
III. Liver - Cholesterols, hormones and vitamins synthesis or secretion.
IV. Lungs - Carbon dioxide and water excretion.
V. Sweat glands – , urea and lactic acid excretion.

Which animal has unpaired lungs?

Match the following and mark the correct options
Animal | Respiratory organ | ||
Earthworm | Moist cuticle | ||
Aquatic Arthropods | Gills | ||
Fishes | Lungs | ||
Birds/Reptiles | Trachea |
Options

Respiration in insects is called direct because

Which of the following blood vessels in the circulatory system of frog has more oxygenated blood

In rabbit the inspiration occurs by contraction of

Muscles which help in respiration are

In which of the following animals (Haemoglobin) is found dissolved in plasma
Or
In which of the following animals, respiration occurs without any respiratory organ

Which of the following is a respiratory organ of scorpion

Which is incorrect?

Match animals in column I with their respective respiratory structures in column II.
Column I (Animals) | Column II (Respiratory structures) |
A. Pigeon | (i) Book gills |
B. Scorpion | (ii) Pharyngeal wall |
C. Planaria | (iii) Lungs |
D. Earthworm | (iv) Gills |
E. Insects | (v) Tracheal tubes |
F. King crab | (vi) Body surface |
G. Prawn | (vii) Skin |
H. Labeo |

Book lungs are respiratory organs of

In earthworm, respiration occurs with the help of:

Find the odd one out with respect to the respiratory organ.

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

The function of surfactant is/ are:

Concerning the respiratory apparatus, pick out the incorrect pair(s)
