Respiratory Organs in Animals

IMPORTANT

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

MEDIUM
IMPORTANT

Which one of the following statements is incorrect?

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

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  

MEDIUM
IMPORTANT

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 – NaCl, urea and lactic acid excretion.

EASY
IMPORTANT

Which animal has unpaired lungs?

MEDIUM
IMPORTANT

Match the following and mark the correct options

  Animal   Respiratory organ
A. Earthworm i. Moist cuticle
B. Aquatic Arthropods ii. Gills
C. Fishes iii. Lungs
D. Birds/Reptiles iv. Trachea

Options

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Respiration in insects is called direct because

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

EASY
IMPORTANT

In rabbit the inspiration occurs by contraction of

EASY
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Muscles which help in respiration are

EASY
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In which of the following animals Hb (Haemoglobin) is found dissolved in plasma

Or

In which of the following animals, respiration occurs without any respiratory organ

EASY
IMPORTANT

Which of the following is a respiratory organ of scorpion

MEDIUM
IMPORTANT

Which is incorrect?

HARD
IMPORTANT

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  

EASY
IMPORTANT

Book lungs are respiratory organs of

EASY
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In earthworm, respiration occurs with the help of:

MEDIUM
IMPORTANT

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

MEDIUM
IMPORTANT

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
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The function of surfactant is/ are:

EASY
IMPORTANT

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