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Yogita Ingle 5 years, 8 months ago
| Attributes | Inhalation | Exhalation |
| What it means | Intake of air into the lungs | Expelling air out of the lungs |
| Type | Active process | Passive process |
| Size of the chest in the process | Increases, expands | Decreases, reduces |
| Diaphragm – role | Contracts, gets flattened by moving down | Relaxes, moves up forming a dome-shape |
| Intercostal muscle – role | Relaxation of internal intercostal muscles and contraction of external intercostal muscles | Contraction of the internal intercostal muscles and relaxation of external intercostal muscles |
| Lungs – volume | Rises to cause inflation | Reduces causing deflation |
| Action it causes | Supply of oxygen-rich air to the blood | Carbon dioxide is expelled out |
| Air composition | Inhaled air is a mix of oxygen and nitrogen | Exhaled air is a mix of nitrogen and carbon dioxide |
Posted by Akshit Mathur 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
The three types of cells found in gastric glands and their secretions are
- Mucus neck cells secrete mucus. Mucus provides lubrication and protection to the mucosal epithelium from the excoriating effect of HCl.
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Peptic or chief cells secrete pepsinogen. Pepsinogen converts proteins into proteoses which are further converted into peptones.
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Oxyntic cells or parietal cells which secrete HCl and intrinsic factors. HCl provides acidic pH 1.8 which is necessary for the action of pepsins. Intrinsic factors are required for the absorption of vitamin B12.
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Arjun Kashyap 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
Forebrain – Largest part of the brain
It is the anterior part of the brain. The fore brain parts include:
- Cerebrum
- Hypothalamus
- Thalamus
Forebrain Function: Controls the reproductive functions, body temperature, emotions, hunger and sleep.
Fact: The largest among the forebrain parts is the cerebrum. It is also the largest part of all vertebrate brains.
Hindbrain: The central region of the brain
The hindbrain is composed of:
- Cerebellum
- Medulla
- Pons
Hindbrain function: The three regions of the hindbrain coordinates all processes necessary for survival. These induce breathing, heartbeat, sleep, wakefulness and motor learning.
Posted by Abhishek Kumar 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
The horizontal power sharing
- Power is shared among different organs of government such as the legislature, executive and judiciary.
- Organs of the government are placed at the same level to exercise different powers.
- Each organ observes the other.
The vertical sharing power,
- Power is shared among the different levels of the governments.
- Power involves the highest and the lower levels of government.
- The lower organs work under the higher organs
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Stranger?♋ Things 5 years, 8 months ago
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Yogita Ingle 5 years, 8 months ago
| Autotrophic Nutrition | Heterotrophic Nutrition |
| Organisms prepare their own food using simple substances that are available in their surroundings | Organisms obtain their food by digesting organic compounds |
| Phototrophic and Chemotrophic are the two types of autotrophic nutrition | Holozoic, parasitic, symbiotic association, and saprophytic are the four types of heterotrophic nutrition |
| Plants are an example for autotrophic nutrition | Animals and some plants are an example for heterotrophic nutrition |
| Autotrophs are the producers in the food chain | Heterotrophs are the consumers in the food chain |
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Yogita Ingle 5 years, 8 months ago
The basic functions performed by living organisms to maintain their life on this earth are called life processes.
Nutrient: A nutrient can be defined as a substance which an organism obtains from its surroundings and uses it as a source of energy or for the biosynthesis of its body constituents.
Example: carbohydrates and fats are the nutrients which are used by the organism mainly as a source of energy.
Proteins and mineral salts are nutrients used by organism for the biosynthesis of its body constituents like skin, blood, etc.
Nutrition:
Nutrition is the process of intake of nutrients (like carbohydrates, fats, proteins, minerals, vitamins and water) by an organism as well as the utilization of these nutrients by the organism.
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Yogita Ingle 5 years, 8 months ago
Three consequences of majoritarian policies adopted by the Sri Lankan Government are:
1.The continues distrust between the two communities led to a civil war in the country.
2.The political and economical situation of Srilanka got shattered.
3.Many people lost their life as well livelihood in the war.
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Yogita Ingle 5 years, 8 months ago
Mucus protects the Inner lining of the Stomach(Mucosa) from its own secretion I.e. HCl as HCl is an Acid and causes the erosion of inner lining of Stomach..
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