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प्रश्न
The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
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उत्तर
Diffusion
Air enters the stomatal opening in plant cells, after which the exchange of respiratory gases occurs by diffusion.
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संबंधित प्रश्न
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
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
Name the pores in a leaf through which respiratory exchange of gases takes place.
What is the name of tiny air-sacs at the end of smallest bronchioles in the lungs?
Describe the process of respiration in the following part of a plant:
Stem
What are the major organs of respiratory system in man (or humans)?
One of the following organisms does not depend on the simple diffusion of gases for breathing and respiration. This organism is ______.
During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is ______.
In cockroaches, air enters the body through ______.
Choose the odd one out in each of the following groups of four items each:
Oxyhaemoglobin, Carbaminohaemoglobin, Hypoxia, Carboxyhaemoglobin
Name the body structure concerned with the given functional activity:
Combines with the oxygen in the lungs.
Name the body structure concerned with the given functional activity:
Provides actual diffusion of respiratory gases in the lungs.
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Epiglottis and _____________.
State one function of the following:
Intercostal muscles
Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
Which of the following indicates the shift of oxyhaemoglobin dissociation curve due to change in ppC02 in blood?
Explain the three pathways of breakdown in living organisms.
During the process of exhalation, the ribs move ______.
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
