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प्रश्न
Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
पर्याय
Oxygen
Hydrogen
Carbon dioxide
Nitrogen
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उत्तर
During respiration, Carbon dioxide gas is given out.
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संबंधित प्रश्न
Given below are the end products of different reactions involving glucose.
Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver
What are the different ways in which glucose is oxidised to provide energy in various organisms? Give one example of each.
What is the other name of wind-pipe?
Explain why, a land plant may die if its roots remain waterlogged for a long time.
Describe the process of respiration in fish.
Describe the process of respiration in the following part of a plant:
Root
Give the main points of difference between respiration in plants and respiration in animals.
Describe the exchange of gases which takes place in the leaves of a plant during daytime.
Which contains more carbon dixoide : exhaled air or inhaled air? Why?
In cockroaches, air enters the body through ______.
|
A, B and C are three living organisms. The organism A is a unicellullar fungus which can live without air. It is used in the commercial production of an organic compound P from molasses. The organism B is a unicellular animal which lives in water and feeds and moves by using pseudopodia. It breathes through an organelle Q. The organism C is a tiny animal which acts as a carrier of malarial parasite. It breathes and respires through a kind of tiny holes R and air-tubes S in its body. |
- What are organisms (i) A (ii) B, and (iii) C?
- Name (i) P (ii) Q (iii) R, and (iv) S.
- Which organism/organisms undergo aerobic respiration?
- Which organism/organisms undergo anaerobic respiration?
The ______ blood cells make antibodies whereas ______ blood cells help in respiration.
| There is a pair of bean-shaped organs P in the human body towards the back, just above the waist. A waste product Q formed by the decomposition of unused proteins in the liver is brought into organ P through blood by an artery R. The numerous tiny filters S present in organ P clean the dirty blood by removing the waste product Q. The clean blood goes into circulation through a vein T. The waste substance Q, other waste salts, and excess water form a yellowish liquid U which goes from organ P into a bag-like structure V through two tubes W. This liquid is then thrown out of the body through a tube X. |
- What is (i) organ P, and (ii) waste substance Q?
- Name (i) artery R, and (ii) vein T.
- What are tiny filters S known as?
- Name (i) liquid U (ii) structure V (iii) tubes W, and (iv) tube X.
Choose the odd one out in the following groups of four items each:
Trachea, Ciliated epithelium, Mucous, Diffusion
Which chemical compound inside a cell can be termed "Currency of Energy"?
Match the items in Column A with those in Column B.
|
Column A |
Column B |
|
Cartilaginous |
Epiglottis |
|
Large surface area |
Diaphragm |
|
Breathing movements |
Bronchi |
|
Voice |
Alveoli |
|
Complemental air |
Larynx |
|
Swallowing |
Extra inhalation |
Give Suitable Explanation for the Following :
Why do you shiver and why do your teeth chatter when it is very cold in winter?
Define respiration.
What is common between extensive network of blood vessels around walls of alveoli and in glomerulus of nephron?
Observe the figure carefully and answer the following questions.
- Which process is being tested in the activity?
- What is the result of the activity? Give reasons.
