Dear Friends,
Friends as you know in SSC and Railway Examination, General science plays very crucial rule. So today, in this article we cover most Important Biology Questions for Railway and SSC Exam. There are lots of questions from this section, especially relevant for Railways. Science is very very important so that we have added related Biology Questions for Railway and SSC Exam.
Important Biology Questions for Railway and SSC Exam
Topic: Nutrient and Nutrition Short Notes and MCQs
Nutrition is one of the basic functions of life in which impact of food, digestion, absorption, assimilation, and
Defecation of undigested food is included.
Nutrient:
Nutrients are the substance by which an organism get energy or it is used for biosynthesis of its body. Carbohydrate and Minerals are nutrient for used biosynthesis.
Carbohydrate:
Carbohydrates are organic compounds in which the ratio of carbon (C), Hydrogen (H) and Oxygen (O) is 1 : 2 : 1. 50 to 75% of energy is obtained by oxidation of carbohydrate.
6 CO2 + 12 H2O ⇌ C6H12O6 + 6O2(g) + 6 H2O
Three types of Carbohydrates:
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- Monosaccharide: E.g: Heptose, Pentose, Tetros, Trios, etc.
- Oligosaccharide: Moltose, Sucrose, Lactose.
- Polysaccharide: Starch, Glucose, Cellulose, Chitin
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Functions of Carbohydrate
- It works as fuel during the process of respiration. Glucose breaks into CO2 and H2O with the release of energy from 1 gram of Glucose we get 4.2 KCal energy.
Protein and Its Function
Protein is the complex organic compound made up twenty types of amino acid approximately 15% of human body is made up of protein. Nitrogen (N) is present in addition to C, H, O.
[su_highlight background=”#f392fa”]22 types of protein are necessary for a body[/su_highlight]. Out of 22, [su_highlight background=”#f392fa”]12 are synthesized in the body and rest 10 are obtained by food[/su_highlight], essential amino acid.
There are three types of protein –
- Simple Protein: Albumin, Globulin, Histone
- Conjugated Protein: Chromoprotein, Glycoprotein.
- Derived Protein: Pepton, Peptede, Proteinase
Functions of Protein:
It takes part in the formation of cells, protoplasm, and tissues. It is important for physical growth. [su_highlight background=”#f392fa”]Lack of protein cause Cwashiour Kwar and Marasmus in children.[/su_highlight]
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