3. Respiration In Organisms(7)
3. Respiration In Organisms(7)
Questions
Yeasts respire anaerobically and during this process yield __________.
- Alcohol
- Salty water
- Proteins
- Carbohydrates
A large, muscular sheet called __________ forms the floor of the chest cavity.
- Diaphragm
- Lungs
- Windpipe
- None of the above
In cockroaches, air enters the body through
- Lungs
- Gills
- Spiracles
- Skin
What is the importance of sneezing?
- Sneezing helps in increasing the breathing rate
- Sneezing expels the foreign particles from the inhaled air
- Sneezing helps in increasing the heart rate
- Both a and c
During heavy exercise, the breathing rate can increase upto ___ times per minute.
- 20
- 23
- 21
- 25
Smoking is linked to
- Cancer
- Hepatitis
- Typhoid
- Vomiting
Why the appearance of lime water in a test tube changes when we blow into it for a few times?
- The test tube may contain impurities which changes the appearance
- Lime water contains carbon dioxide which changes its appearance upon blowing
- Carbon dioxide in our exhaled air changes the appearance of lime water
- Oxygen in our exhaled air changes the appearance of lime water
Breathing involves the movement of the
- Nose and rib cage
- Lungs and rib cage
- Diaphragm and lungs
- Diaphragm and rib cage
The percentage of carbon dioxide in inhaled air
- 0.04%
- 0.01%
- 0.07%
- None of the above
The percentage of oxygen in inhaled air is
- 20%
- 30%
- 40%
- 21%
Earthworms breathe through __________.
- Lungs
- Trachea
- Skin
- Spiracles
An adult human being at rest breathes in and out _______ times in a minute.
- 20-21
- 12-13
- 15-18
- 30-31
When we inhale air, it passes through our nostrils into the ________.
- Lungs
- Windpipe
- Nasal Cavity
- Diaphragm
Roots take up air from the air spaces present between the
- Water
- Root hairs
- Soil particles
- None of the above
The number of times a person breathes in a minute is termed as the
- Pulse rate
- Breathing rate
- Transpiration
- None of the above
During heavy exercise, we get cramps in the legs due to the accumulation of
- Carbon dioxide
- Lactic acid
- Alcohol
- Water
The taking in of air rich in oxygen into the body is called
- Exhalation
- Inhalation
- Respiration
- Photosynthesis
Though frogs have a pair of lungs like human beings, they can also breathe through their
- nostrils
- skin
- trachea
- None of these
Gills are well supplied with _________ for exchange of gases.
- Blood vessels
- Mucus gland
- Air sacs
- None of the above
Insects have ___________ for gaseous exchange.
- skin
- trachea
- lungs
- diaphragm