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प्रश्न
Lack of oxygen in muscles often leads to cramps in the legs of sprinters. This is due to the conversion of pyruvate to:
विकल्प
Ethanol
Carbon dioxide
Acetic acid
Lactic acid
उत्तर
Lactic acid
Lack of oxygen in muscles causes the accumulation of lactic acid, due to anaerobic respiration. Accumulation of lactic acid leads to cramps in the legs of sprinters.
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संबंधित प्रश्न
During heavy exercise, we get cramps in the legs due to the accumulation of ______.
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 does the blood absorb oxygen in the human body?
What type of respiration takes place in human muscles during vigorous physical exercise? Give reason for your answer
Which of the following is not produced during anaerobic respiration in unicellular fungus?
When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of:
Which of the following is known as the energy currency of the cells in biology?
The two organisms which breath only through their moist skin are:
Veins and arteries carry blood. Which of these carry blood away from the heart?
Answer this question.
What are the holes on the sides of the body of insects called?
Tick the most appropriate answer.
The products of respiration are :
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:
Ethyl alcohol, Carbon dioxide, Starch, Oxygen
Name the body structure concerned with the given functional activity:
Prevents food from entering the trachea during swallowing.
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:
Intercostal muscles
State one function of the following:
Pleural fluid
Glycolysis process occurs in which part of the cell?
Sometimes we get painful cramps in our leg muscles after running for a long time due to the accumulation of:
Which of the following statement(s) is (are) true about respiration?
- During inhalation, ribs move inward and the diaphragm is raised
- In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from the blood into the alveolar air
- Haemoglobin has a greater affinity for carbon dioxide than oxygen
- Alveoli increase surface area for the exchange of gases
