Biology for Competitive Exams: General Biology Notes for All Exam

By | October 19, 2020

Biology for Competitive Exams: This subject plays a very important role in any exam (Like- PSC, SSC, NEET, etc) and a good number of questions asked.

All topics covered in this post are related to all-important exams. The important biology Topics are:-

Vitamins (General Biology Notes)

Vitamin is working as an organic compound. Vitamins play a very important role in a healthy life because of the lack of both our body can’t work properly.

In the human body, there are 13 types of vitamins exist. These are:-

  • Vitamin A
  • Vitamin B 
  • Ascorbic acid or vitamin C
  • Vitamin D
  • Tocopherols or tocotrienols or vitamin E
  • Vitamin K

Solubility of Vitamins (Biology for Competitive Exams)

In every human 13 types of vitamins present in their body. In these vitamins, some have a fat-soluble property and some have water-soluble property. 4 vitamins have a fat-soluble property, and 9 vitamins water-soluble property.

  • Fat-soluble vitamins

In the human body, 4 vitamins have a fat-soluble property.

  • Water-soluble vitamin

9 vitamins water-soluble property (8 B vitamins and vitamin C).

1.  Vitamin A

  • It is very essential and plays an important role in removing night blindness.
  • This is important for function reproduction and normal cell reproduction.

2.  Vitamin B 

  • Vitamin B1- Thiamine
  • Riboflavin- Vitamin B2
  • Niacin- Vitamin B3
  • Vitamin B5- Pantothenic acid
  • Vitamin B6- Pyridoxine
  • Biotin- Vitamin B7
  • Vitamin B9- Folates
  • Vitamin B 12

10.  Ascorbic acid or vitamin C

  • It is chemically known as ascorbic acid.
  • It uses in wound healing.

11.  Vitamin D

  • It is chemically known as cholecalciferol, ergocalciferol.
  • This plays a very important role in healthy bones and teeth.

12.  Tocopherols or tocotrienols or vitamin E

  • The chemical name of vitamin E are tocopherols, tocotrienols and
  • Vitamin E is soluble in fat. It is very essential for everyone.

13.  Vitamin K

It is chemically known as phylloquinone and menaquinone.

  • Read more about ‘Vitamin’: Vitamin

Blood (Biology for Competitive Exams)

Blood Circulation:

  • The blood circulation system is discovered by William Harway.
  • By the blood circulation system, the digested substances and Oxygen (O2) is carried to all body cells.

Blood Group:

  • Blood Group ‘A’
  • ‘B’ Blood Group
  • Blood Group ‘AB’
  • ‘O’ Blood Group

Blood Cells:

  • Red Blood Cells (RBC)
  • White Blood Cells (WBC)
  • Platelets

Read more about ‘Vitamin’: Blood Facts


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