Class 7 Respiration In Organisms CBSE Questions & Answers

Class 7 · Respiration In Organisms

This is Science Class 7 Respiration in Organisms CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Respiratory organs and process of breathing is not same as human beings in
  • A
    Horse
  • B
    Cockroach
    Correct
  • C
    Cat
  • D
    Dog
2
Breakdown of glucose in plant cell is ______________ to animal cells.
  • A
    Different
  • B
    Either similar or different
  • C
    Similar
    Correct
  • D
    Similar in some cell but different in other cells
3
Which of the following organism breathe through skin?
  • A
    Earthworm
    Correct
  • B
    Cockroach
  • C
    Human
  • D
    Fish
4
Skeletal structure surrounding the chest cavity is called
  • A
    Lung cover
  • B
    Chest bone
  • C
    Rib cage
    Correct
  • D
    Chest cover
5
Respiratory pigment in human being is called
  • A
    Haemoglobin
    Correct
  • B
    White blood cells
  • C
    Lymphocytes
  • D
    Thrombocytes
6
Mountaineers carry oxygen with them because
  • A
    An altitude above 5 km air is absent
  • B
    Air temperature is more at height
  • C
    Air pressure is more on higher altitude
  • D
    Amount of air is less than that on the ground
    Correct
7
Choose the incorrect pairing.
  • A
    Insects – spiracles
  • B
    Human – lungs
  • C
    Earthworm – skin
  • D
    Cockroach – gills
    Correct
8
Two layered membrane that enclose the lung is called
  • A
    Epiglottis
  • B
    Pleurae
    Correct
  • C
    Glottis
  • D
    Bronchi
9
More energy is released in
  • A
    Breathing
  • B
    Anaerobic respiration
  • C
    Fermentation
  • D
    Aerobic respiration (
    Correct
10
The chemical used to test the carbon dioxide gas in exhaled air is
  • A
    Lime water
    Correct
  • B
    Lime juice
  • C
    Lime stone
  • D
    Quick lime
11
The minute pores present on the surface of leaves are called
  • A
    Stomata
    Correct
  • B
    Guard cells
  • C
    Lenticels
  • D
    Mesophyll cells
12
During respiration glucose is
  • A
    Oxidised
    Correct
  • B
    Hydrolysed
  • C
    Reduced
  • D
    Dehydrated
13
In anaerobic respiration which chemical substance is produced?
  • A
    Citric acid
  • B
    Alcohol
    Correct
  • C
    Formic acid
  • D
    Lactic acid
14
In higher plants gaseous exchange takes place through
  • A
    All body parts
    Correct
  • B
    Lenticels
  • C
    Stomata
  • D
    Root hair
15
Voice box is present in
  • A
    Epiglottis
  • B
    Mouth
  • C
    Larynx
    Correct
  • D
    Pharynx