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प्रश्न
Answer the following in detail.
In human beings, what happens to oxygen after it is inhaled through the nose?
उत्तर
Air rich in oxygen enters the body through the nostrils (nose). From the nose, air enters the phaiynx which leads to the larynx and then trachea (windpipe). From the trachea, it enters the bronchi and enters the lungs. From bronchi, it enters bronchioles and finally the alveoli. The oxygen diffuses through the thin walls of blood capillaries (surrounding) into the blood and combines with hemoglobin to form oxyhemoglobin. The oxygen in the blood is carried to all body cells where internal respiration takes place in a series of chemical reactions and food (in the form of glucose) is converted into carbon-dioxide water and energy in the form of ATP, using the oxygen.
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संबंधित प्रश्न
Distinguish between:
Fermentation and anaerobic respiration.
Complete the following statement by choosing the correct alternative out of those given below.
In respiration, energy is released in
Glycolysis takes place in ______.
Identify X and Yin the following reaction.
\[\ce{Pyruvic acid + CoA + NAD+ \frac{Mg^{2+}}{X} Y + CO2 + NADH + H+}\]
In anaerobic respiration, CH3CHO is reduced to form alcohol by utilizing NADH2 obtained from ______.
Study the following statements with respect to Krebs cycle and select the correct option.
- As per need, acetyl CoA or some other intermediates like a-ketoglutarate, oxaloacetate of Krebs cycle are used as precursors for synthesis of fatty acids, glutamic acid and aspartic acid respectively.
- Various reactions of Krebs cycle involve step-wise oxidation of acetyl part of acetyl CoA leading to release of energy and C02.
Enzyme enolase catalyses the conversion of 2 PGA to Phosphoenol Pyruvic acid in presence of ______ which is the cofactor.
Acetyl Co-A (2C) combines with water and Oxaloacetic acid (4C) to form ____________.
Mention the important series of events of aerobic respiration that occur in the matrix of the mitochondrion and in the inner membrane of the mitochondrion.
In which phase of the Pentose Phosphate Pathway (PPP), NADPH is generated?
