Advertisements
Advertisements
प्रश्न
Which of the following is most likely to have a much higher breathing rate?
विकल्प
Man
Fish
Dog
Sparrow
उत्तर
Fish
Rate of breathing in aquatic animals is much faster than terrestrial animals. This is because a faster rate of breathing provides more oxygen to the aquatic animals.
APPEARS IN
संबंधित प्रश्न
What would be the consequences of a deficiency of haemoglobin in our bodies?
Given below is a square of letters in which are hidden different words related to respiration in organisms. These words may be present in any direction − upwards, downwards, or along the diagonals. Find the words for your respiratory system. Clues about those words are given below the square.
- The air tubes of insects
- Skeletal structures surrounding chest cavity
- Muscular floor of chest cavity
- Tiny pores on the surface of leaf
- Small openings on the sides of the body of an insect
- The respiratory organs of human beings
- The openings through which we inhale
- An anaerobic organism
- An organism with tracheal system
Where in the lungs does gas exchange take place?
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
Which of the following statements are correct?
(i) pyruvate can be converted into ethanol and carbon dioxide by yeast
(ii) fermentation takes place in the case of aerobic bacteria
(iii) fermentation takes place in mitochondria
(iv) fermentation is a form of anaerobic respiration
The two organisms which breath only through their moist skin are:
It has been found that people living in very high mountains have many more red corpuscles in their blood than people living in plains. Which one of the following best accounts for this phenomenon?
In the lungs what substance is removed from the body?
Answer this question.
What are the holes on the sides of the body of insects called?
Differentiate between
External respiration and Internal respiration
A student has set up "CO2 is released during respiration”. After about 1 hour he observes no change in the water level in the delivery tube. Write two possible resons for the failure of the experiment.
Choose the odd one out in the following groups of four items each:
Trachea, Bronchus, Alveolus, Diaphragm
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Diaphragm and _____________.
State one function of the following:
Pleural fluid
With regard to the respiratory system and the process of respiration in man, answer the following question:
What is meant by :
- Residual air and
- Dead air space
Draw a diagram of the human respiratory system and label - pharynx, trachea, lungs, diaphragm and alveolar sac on it.
What percent of oxygen is transported in a dissolved state by the plasma?
Explain the three pathways of breakdown in living organisms.
During the process of exhalation, the ribs move
With the reference to four gases CO2, CO, Cl2 and O2, which one of the options in the table is correct?
