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प्रश्न
During marathon, we sometimes get painful contractions of leg muscles due to the accumulation of one of the following in leg muscles. This is:
पर्याय
Carbon dioxide
Alcohol
Lactose
Lactic acid
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उत्तर
Lactic acid
During a marathon, most of the energy in our muscles is produced through aerobic respiration, while anaerobic respiration provides some extra energy needed under these conditions. The anaerobic respiration by the muscles brings about partial breakdown of glucose to form lactic acid. The accumulation of lactic acid in the muscles causes muscle cramps.
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संबंधित प्रश्न
Carbon dioxide enters into the leaves through tiny pores present on the surface of the leaf called _________.
(a) chlorophyll
(b) chloroplast
(c) stomata
(d) epidermis
During heavy exercise, we get cramps in the legs due to the accumulation of ______.
Name one substance which is produced in anaerobic respiration by an organism but not in aerobic respiration.
Which part of roots is involved in the exchange of respiratory gases?
Name the red pigment which carries oxygen in blood.
What type of respiration takes place in human muscles during vigorous physical exercise? Give reason for your answer
Describe the process of respiration in the following part of a plant:
Leaves
From where do the aquatic animals and terrestrial animals obtain oxygen for breathing and respiration?
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.
(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?
There are five animals P, Q, R, S and T. The animal P always lives in water and has gills for breathing. The animal Q can stay in water as well as on land and can breathe both, through moist skin and lungs. The animal R lives in soil and breathes only through its skin. The animal S lives on land and breathes through spiracles and tracheae. And animal T lives in water and breathes through its cell membrane.
(a) Which of the animals could be Amoeba?
(b) Which of the animals could be frog?
(c) Which animal could be fish?
(d) Which animal could be grasshopper?
(e) Which animal could be earthworm?
Fill in the following blanks with suitable words:
The ___________ blood cells make antibodies whereas ___________ blood cells help in respiration.
Veins and arteries carry blood. Which of these carry blood back to the heart?
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Mitochondria and _____________.
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:
Mitochondria
Answer the following question.
A gas is released during photosynthesis. Name the gas and also state the way by which the gas is evolved.
What percent of oxygen is transported in a dissolved state by the plasma?
Name the energy currency in the living organisms. When and where is it produced?
Yeast is used in wine and beer industries because it respires ______.
