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प्रश्न
During the deficiency of oxygen in tissues of human beings, pyruvic acid is converted into lactic acid in:
पर्याय
Ethanol
Chloroplast
Mitochondria
Golgi body
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उत्तर
Mitochondria
During anaerobic respiration in human beings, pyruvic acid is converted into lactic acid in the mitochondria of the muscle cells.
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संबंधित प्रश्न
How are the lungs designed in human beings to maximize the area for exchange of gases?
The breakdown of pyruvate to give carbon dioxide, water, and energy takes place in ______.
Where does the blood absorb oxygen in the human body?
State whether the following statement is true or false:
Fish and earthworm exchange gases during respiration in the same way.
Explain why, a land plant may die if its roots remain waterlogged for a long time.
Fill in the following blank with suitable word:
Gills are the breathing organs in ___________.
Name the type of respiration in which the end product is:
C2H5OH and CO2
Give one example where such a respiration can occur.
Name the type of respiration in which the end product is:
Lactic acid
Give one example where such a respiration can occur.
Why do the walls of trachea not collapse when there is less air in it?
Give the main points of difference between respiration in plants and respiration in animals.
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.
(a) What is (i) organ P, and (ii) waste substance Q?
(b) Name (i) artery R, and (ii) vein T.
(c) What are tiny filters S known as?
(d) Name (i) liquid U (ii) structure V (iii) tubes W, and (iv) tube X.
Out of xylem and phloem, which one carries materials only upwards?
Answer this question.
What are the holes on the sides of the body of insects called?
Choose the odd one out in the following groups of four items each:
Ethyl alcohol, Carbon dioxide, Starch, Oxygen
Given below is an example of certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Alveoli and _____________.
Differentiate between the following pairs on the basis of the aspect given in the brackets.
Tidal volume and Residual volume (Quantity of air)
Respiration refers to ____________.
With the reference to four gases CO2, CO, Cl2 and O2, which one of the options in the table is correct?
Match the correct answers with the type of respiration and respiratory substances.
| Respiration | Types of Substrates |
| A. Floating respiration | I. Proteins |
| B. Cytoplasmic respiration | II. Glucose |
| C. Protoplasmic respiration | III. Carbohydrates and fats |
Visit a doctor. Find out about artificial respiration. Ask the doctor:
- When does a person need artificial respiration?
- Does the person need to be kept on artificial respiration temporarily or permanently?
- From where can the person get supply of oxygen for artificial respiration?
