Question

Describe respiration in human beings in clear points step by step acc. To level of 7 class

Answer 1

When we breathe, we are taking in oxygen with each inhale and releasing carbon dioxide with each exhale. This gas exchange is important for respiration, but while breathing is a physical process, respiration can be thought of as more of a chemical process. All organisms, from a single bacterial cell to a coral reef colony to a blue whale, undergo respiration.

Food molecules absorbed after digestion are taken in, broken down, and the energy freed in the process is used to power the organism's movements and physiological functioning. Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in cells).

When we examine the equation for cellular respiration, we see that the reactants are glucose and oxygen (for aerobic respiration), and the products are carbon dioxide, water, and ATP. Note the number of oxygen, carbon dioxide, and water molecules involved in each 'turn' of the process.

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Answer 2

#RESPIRATION -
The process in which the food is utilised for obtaining energy is known as respiration. Any human being cannot survive without this process of respiration. During the respiration, it is mainly the carbohydrate which is oxidized to produce energy.

It can be shown in the following equation:-

Glucose + oxygen - Carbon dioxide + energy + water.

#SITE OF Respiration :-

Respiration happens inside the cells. As it is happens inside the cells it is also known as cellular respiration.

#TYPES of Respiration :-

1.Aerobic Respiration : The respiration which occurs in the presence of oxygen is known as aerobic respiration. Aerobic respiration happens in most of the organisms. The equation for this respiration is as following :

Glucose(presence of oxygen) -water +energy +carbon dioxide.

2.Anaerobic Respiration :- This is the respiration which occurs in the absence of oxygen . The examples for this respiration are Yeast and human muscles. The equation for this respiration is-

Glucose ( absence of oxygen)-Alcohol + carbon dioxide + energy.

Now.......

In some cases the lactic acid is produced with in the anaerobic respiration . For example- human muscles respire anaerobically sometimes . At that time the lactic acid spreads into our body and muscle cramps occur.

#BREATHING -
The process of taking in oxygen and giving out carbon dioxide is known as breathing . The process of breathing involves the movement of diaphragm and Rib cage.
During inhalation we taken Oxygen and during exhalation, we give out carbon dioxide. When we take in oxygen the year get filled in the lungs ,this is because the movement of diaphragm and Rib cage.

BREATHING RATE -
The number of times a person breathe in a minute is known as the breathing rate. When we do some physical activities are breathing rate increases than the normal.


#INHALATION -
During the inhalation process the diaphragm moves down and the ribs moves upward and outward so that the oxygen rich air gets filled inside the oxygen.

#EXHALATION -
During the exhalation process the diaphragm moves to its former position and the ribs moves inwards and outwards so that the carbon dioxide rich air can move outside.

This is the process of breathing which is necessary for all the human beings. Nobody can live without this process of breathing.

#STEPS-
Firstly nostrils, nasal passage
then nasal cavity,
then pharynx,
then larynx.,
after that trachea,
inside lungs......