Important Science Questions for Railways and SSC


Dear Friends,

First of all, we would like to wish you happy International Women’s Day. Friends as you know in SSC and Railway Examination, General science plays very crucial rule, there are lots of questions from this section, especially relevant for Railways, General Science is very very important. Therefore, from today we will provide General Science study material with previous year questions asked in the various competitive exams.


Digestion in the small intestine:

In the small intestine, the process of Digestion completed and absorption of digested food started. From the wall of small intestine intestinal juice secrets which contain following enzymes.

  • Erepsin: It converts the remaining protein and peptone into amino acids.
  • Maltase: It converts the maltose into glucose.
  • Sucrase: Converts sucrose into glusoce and fructose.
  • Lactase: Lactose converted into glucose and galactose.
  • Lipase: It converts fats into glycerol and fatty acids.


Absorption takes place through small intestine after getting digested into the blood.


Use of Absorbed food in the body is called Assimilation.


Undigested food reaches into the large intestine where bacteria transmit into faeces, which extracted through the anus.

Nervous System:

 Human body Nervous System is divided into 3 parts

  1. Central Nervous System(CNS)
  2. Peripheral Nervous System(PNS)
  3. Automatic Nervous System(ANS)

What is Central Nervous System(CNS): Part of Nervous System which keeps control on the whole body system and on nervous system itself is called Central Nervous System. The Central Nervous System is made up of two parts – Brain, Spinal Cords.

Functions of Brains

  1. Cerebrum: Cerebrum is most developed part of the brain. This is the center of wisdom, memory, willpower, movement, knowledge, and thinking.
  2. Thalamus: Center of pain, cold and Heat etc.
  3. Hypothalamus: Control the Hormonal secretion of endocrine glands. This is the center of hunger, thirst, love, hate, anger, joy etc.
  4. Mid Brain: It controls on hearing and vision power.
  5. Cerebellum: Act as a reflex center for coordination of muscular body movements and maintenance of posture.
  6. Ponse: It acts as a bridge between brain and spinal cord.
  7. Medula: It controls complex activity like heart action, respiration, coughing, sneezing etc.


The posterior region of Medulla Oblongata forms the spinal cord. Its main actions are coordination and control of reflex action.



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