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प्रश्न
Which part of roots is involved in the exchange of respiratory gases?
उत्तर
Root hair is involved in the exchange of respiratory gases as they are in direct contact with the air present in the soil.
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संबंधित प्रश्न
How are the lungs designed in human beings to maximize the area for exchange of gases?
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
Trace the movement of oxygenated blood in the body.
Name the red pigment which carries oxygen in blood.
Name the type of respiration in which the end product is:
Lactic acid
Give one example where such a respiration can occur.
Describe the process of respiration in Amoeba. State whether it is anaerobic respiration or aerobic respiration.
State the three common features of all the respiratory organs like skin, gills and lungs.
Explain how, it would benefit deep sea divers if humans also had gills.
Which of the following increases in muscle cells when they are lacking in oxygen?
The breathing and respiration in woody stem of a plant takes place 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.
(a) What are organisms (i) A (ii) B, and (iii) C?
(b) Name (i) P (ii) Q (iii) R, and (iv) S.
(c) Which organism/organisms undergo aerobic respiration?
(d) Which organism/organisms undergo anaerobic respiration?
Some sugar solution is taken in a test-tube and a little of substance X in powder form is added to it. The mouth of test-tube is closed with a cork and allowed to stand for sometime. On opening the cork, a characteristic smell of substance Y is obtained and a gas Z is also observed to be formed. The gas Z extinguishes a burning matchstick.
(a) What could be (i) X, (ii) Y, and (iii) Z?
(b) What is the process of converting sugar into substance Y by the action of X known as?
(c) What type of respiration is exhibited by X in the above process?
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Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
'C' shaped cartilage rings and ____________.
How much percent of C02 is transported in a dissolved form as carbonic acid?
The Figure shown below represents an activity to prove the requirements for photosynthesis. During this activity, two healthy potted plants were kept in the dark for 72 hours. After 72 hours, KOH is kept in the watch glass in setup X and not in setup Y. Both these setups are air tight and have been kept in light for 6 hours. Then, Iodine Test is performed with one leaf from each of the two plants X and Y.
The function of KOH is to absorb ______.
Explain the three pathways of breakdown in living organisms.
