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Banking IBPS PO Clerical Insurance Railways UPSC SSC CTET NDA CDS RRB Exams General Knowledge Super Fast Revision for Competitive Examinations.

Science
What is Nutrition?
The components of food
Carbohydrates, Fats, Proteins, Minerals, Water.
Carbohydrates are made of carbon, Hydrogen and Oxygen
Main source of energy
 

Fats
Gives twice the energy of Carbohydrates
1 gm -37KJ of energy
Enzyme lipase digests the fats. It breaks down into fatty acids and glycerol.
Daily requirement of fats is 50 gms
Proteins made of Carbon, Hydrogen, Oxygen and Nitrogen.
Important for growth and repair of human body
Proteins are made of amino acids
Diseases caused due to deficiency of proteins - Kwashiorkor and Marasmus 

What are Vitamins?
Important for Normal health, growth vision digestion etc.
Vitamins – Two types
Water Soluble – Vitamin b Complex, Vitamin C
Fat Soluble – Vitamins A, D, E and K
What are the Types of Vitamins and Deficiencies?
 

Vitamin A – Retinol – deficiency causes Night Blindness
B1 – Thiamine – deficiency causes Beri Beri
B2 Riboflavin – deficiency causes Cheilosis
C – Ascorbic Acid – deficiency causes Scurvy
D – Calciferol – deficiency causes Rickets
E – Tocopherol deficiency causes Sterility
K – Phylloquinone deficiency causes Hemophilia
Water – Important for survival and digestion, excretion, body temperature regulation.
Body contains 65 % water

What is Blood?
Blood – fluid connective tissue
4.7liters.
6-8 percent of body weight
What are Blood cells?
RBS – Red Blood Corpuscles
RBC life 120 days
4.7 to 6.1 million cells/ul (micro liter)
 

White Blood Corpuscles – WNC
Produced in bone marrow
Defend the body against infection and diseases
Platelets
Produced in bone marrow
Helps in blood clotting
What are Blood Groupings?
Karl Landsteiner – Known as father of Blood grouping
Discovered A, B and O blood groups
 

Blood Group A
Can donate to A and AB.
Receive from A and O
Blood Group B
Can receive from B and AB
Donate to B and O
Blood group AB
Can Donate to AB
Can receive from A, B, AB and O
Blood group O
Can donate to A, B, AB and O
Can receive from O

What is Rh factor?
Blood antigen found in RBC
Presence or absence denoted by Rh+ or Rh-
Blood transfusion technique –Developed by James Blundell

What are Important Communicable or Infectious Diseases?
Diseases caused by Virus
Small Pox – Variola Virus
Chicken Pox – Varicella Virus
Common Cold – Rhino Virus
Influenza (Flu) Orthomixo virus
 

Measles – (Rubello) Measles virus
Mumps - Mumps virus
Poliomyelitis – Polio Virus
Rabies – Rabies virus
Dengue - Dengue virus
AIDs – Retro Virus

Diseases caused by Bacteria
Diphtheria – Corynebacterium diptheriae
Pneumonia – Diplococcus pneumoniae
Tuberculosis – Mycobacterium tuberculosis
Plague – Yersinia pestis
Tetanus – Clostridium tetani
Typhoid – salmonella typhi
 

Cholera – Vibrio cholera
Syphilis – Treponema pallidum
Leprosy – Mycobacterium leprae
Botulism – clostridium botulinum
Malaria – Plasmodium
Sleeping sickness-Trypanosoma brucei
Kala azar –Leishmania donovani
 

What are the Common Diseases and Affected parts of the body?
Aida – Immune system of the body
Arthritis – Joints
Asthma – Bronchial Muscles
Cataract – Eyes
Conjunctivitis – eyes
 

Glaucoma – eyes
Diabetes mellitus –Pancreas and blood
Dermatitis – Skin
Diphtheria – Throat
Eczema – Skin
Goitre – Thyroid
Hepatitis Liver
Jaundice – Liver
 

Malaria – Spleen
Meningitis – Brain
Paralysis – Nerves and limbs
Pyorrhea – teeth
Pneumonia – Lungs
Typhoid – Intestines
Tuberculosis – lungs
Tonsilitis – Tonsils gland in throat

What are the important facts about Human Body?
Longest Bone – Femur – Thigh Bone
Smallest Bone – stapes (ear)
Blood Volume – 4.7 Liters
Normal BP – 120/80 mm Hg
Life Span of RBC -120 days
Life span of WBC – 3-4 days
 

Universal Blood Donor –Type - O Rh D negative
Universal Blood recipient - Type AB Rh D positive
Average Body weight – 70 Kgs
Normal Body temperature – 98.4 0 F or 37 0 C
Dental Formula 2123/2123 – total 32
Child -2120/2120 - total 22 teeth
Gestation Period – 9 months
 

Largest gland – Liver
Largest muscle in the body – Gluteus maximus (buttock muscle)
Menstrual Cycle – 28 days
Minimum Distance for Proper Vision – 25 cm
pH of urine – 6.0

What are Important Alloys and Their Composition?
Duralumin - Aluminium and Copper
Brass- Copper and Zinc
Bronze- Copper and Tin
Invar - Iron and Nickel
Stainless steel- Iron, Chromium and Nickel
German silver - Copper, Nickel and Zinc
Gunmetal- Copper, Tin and Zinc
Solder- Lead and Tin
Electrum - Gold and Silver
Constantan- Copper and Nickel
Manganin- Copper, Manganese and Nickel

What are Common and Chemical Names of Important Compounds?
Dry Ice –Solid Carbon dioxide
Bleaching Powder – Calcium Ocychloride
Caustic Soda – Sodium Hydroxide
Potash alum – Potassium Aluminium Sulphate
Epsom – Magnesium Sulphate
Quick Lime – Calcium Oxide
Plaster of Paris – calcium Sulphate
 

Gypsum – Calcium Sulphate
Green Vitriol – Ferrous Sulphate
Blue Vitriol – Copper Sulphate
White Vitriol – Zinc Sulphate
Marsh gas – Methane
Vinegar – Acetic acid
Baking Powder – Sodium Bicarbonate
Washing Soda –Sodium Carbonate
 

Magnesia – Magnesium Oxide
Laughing Gas – Nitrous Oxide
Chloroform – Tricholormethane
Vermilion –Mercuric Sulphide
Borax – Borax
Alcohol – Ethyl Alcohol
Sugar – Sucrose
Heavy water – Deuterium Oxide
Sand – Silicon Oxide.

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Banking IBPS PO Clerical Insurance Railways UPSC SSC CTET NDA CDS RRB Exams General Knowledge Super Fast Revision for Competitive Examinations.

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