Five Question Paper Sets Collection - Biology Class 12

Question Paper | Biology
Model Question Paper Collection

Subject: Biology (Zoology + Botany)
For: Science Grade XII

Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution and taxonomy. It provides detailed information about the zoological as well as botanical aspects of life with intensive study of different species of plants and animals, internal structure of human body, physical and chemical functions of tissues, organs and organ systems, and many other aspects.

SET Two (2066) - Model Question Paper of Biology Class 12

Question Paper | Biology
Model Question Paper
Set: Two

Subject: Biology (Zoology + Botany)
Year: 2066
For: Science Grade XII

Zoology

1. Give very short answers of following questions any seven 1x7=7

SET I (2066) - Model Question Paper of Biology Class 12

Question Paper | Biology
Model Question Paper
Subject: Biology (Zoology + Botany)
Year: 2066
For: Science Grade XII

Zoology

1. Give very short answers of following questions any seven 1x7=7

1.1. From where does epithelial cell rise?

1.2. Which vitamin is called antisterility vitamin?

SET II - Question Paper Model of Biology Class 12

Question Set | Biology
Question Paper Model of Biology
For: Science Grade XII

Section A Zoology

1. Give very short answers of following questions any seven 1x7=7

1. What is the average weight of human brain?

SET I - Question Paper Model of Biology Class 12

Question Set | Biology
Question Paper Model of Biology
For: Science Class 12

Section A Zoology

1. Give very short answers of following questions any seven 1x7=7

1. From where does epithelial cell rise?

2. Which vitamin is called antisterility vitamin?

3. What is breathing rate in man?

NCERT Text Book of Biology Class 12 | Download

Download | Reference Book
NCERT Text Book of Biology Grade XII

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Alimentary Canal in Human Beings | Biology Class 12

Zoology | Notes
Alimentary Canal in Human Beings
Class: 12

Alimentary canal in a continuous tube with varied diameter at different region and helps in digestion process. It runs from mouth to anus via pharynx, oesophagus, stomach and intestine. The initial steps in digestion takes place in a cavity called as oral cavity where teeth tongue and three pairs of salivary glands are present.

Nutrition in Animals and Humans | Biology Class 12

Zoology | Notes
Nutrition in Animals and Humans
Class: 12

All living beings are composed of cells and cells required energy for performing their functions. The overall process of obtaining food in order to provide energy to body part so that body part can perform their function is called Nutrition. The digested food is utilized to liberate energy which is required for metabolic activities growth and repairing tissue. The food components that provide required energy are called nutrients which include carbohydrate, protein, lipid, vitamin, minerals and water.

Balanced Diet | Biology Class 12

Zoology | Notes
Balanced Diet - Nutrition in Human Body
Class: 12

A diet is said to be balanced when it provides proper amount and proportion of Calories required to the body. Simply the meal that supports proper physical and mental growth and development is called balanced diet. In a diet the carbohydrates should be 450 gm, 90 gm protein and 45 gm fat. Beside these proper amount of vitamins and minerals should be included into diet. The diet that fails to meet basic demand or body results improper growth and the condition is called malnutrition. In developing countries like Nepal, malnutrition is mainly due to under nutrition at childhood. Under nutrition results two important diseases: Kwashiorkor and Marasmus. 

Old Question Paper 2070 - Biology Class 12 | Download

Question Paper | Computer Science
Old Question Paper of Biology(Botany + Zoology)
Class : 12
Year : 2070 B.S. (2013)

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Water in Human Body - Function and Requirement | Biology Class 12

Zoology | Notes
Water in Human Body
Class: 12

It is a main chemical component of protoplasm and usually occupies 75-85 % of protoplasm. Most of metabolic activities that maintain life take place only ion presence of water. Water requirement to body can be fulfilled in three ways, from food, oxidation of food and then by drinking water. 

Water Soluble Vitamins | Biology Class 12

Biology | Notes
Water Soluble Vitamins
Class: 12

Vitamins are divided into two groups depending on solubility. They are water soluble vitamins and fat soluble vitamin. Vitamin A, D, E and L are fat soluble vitamin and vitamin B-Complex and C are water soluble vitamins. 

Vitamin B-Complex 

It is water soluble vitamin and composed of numbers of vitamins. The name, sources function and deficiency can be mentioned as follows. 

Fat Soluble Vitamins | Biology Class 12

Biology | Notes
Fat Soluble Vitamins
Class : 12

Vitamins are divided into two groups depending on solubility. They are water soluble vitamins and fat soluble vitamin. Vitamin A, D, E and L are fat soluble vitamin and vitamin B-Complex and C are water soluble vitamins. 

Vitamin A (Retinol) 

Vitamin A influences growth of a body and protects from infection. It is necessary for maintaining normal growth of retinal epithelium tissue and is necessary for vision at night. Vitamin A is found in liver, fish oil, meat, butter, daily products, yellow fruits, green vegetables, papaya, etc.

Lipid - Sources, Daily Requirement and Function | Biology Class 12

Notes | Zoology
Lipid - Sources, Daily Requirement and Function
Class: 12

Lipids are water insoluble organic compounds which dissolve in organic solvent like benzene, ether, chloroform etc. Lipid is a group of fat and fat like substances which are compound of carbon, hydrogen and oxygen buy not as in the ratio found in carbohydrate.

Protein - Sources, Daily Requirement and Function | Biology Class 12

Notes | Zoology

Protein - Sources, Daily Requirement and Function

Class: 12

Proteins are one of the most important nutrients and are defined as polymers of amino acid. The amino acids in Protein are bonded together through a bond called as peptide bond. The peptide bond is formed when amine group of one amino acid combines with carboxyl group of another amino acid leaving one molecule of water.

Carbohydrate - Sources, Daily Requirement and Function | Biology Class 12

Zoology | Notes

Carbohydrate - Sources, Daily Requirement and Function

Class: 12

Carbohydrates are main source of energy and are defined as hydrates of carbon where carbon, hydrogen and oxygen are present in the ratio of 1:2:1. The fundamental unit of carbohydrate is monosaccharide and glucose is most important of these. The modern definition of carbohydrate is the compounds that are polyhydroxy of either aldehyde or ketone.

Application of Biology in Aspect to Zoology | Class 12

Zoology | Notes
Application of Biology 
Class: 12

Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution and taxonomy. It provides detailed information about the zoological as well as botanical aspects of life with intensive study of different species of plants and animals, internal structure of human body, physical and chemical functions of tissues, organs and organ systems, and many other aspects.

Fish Farming - Pond Management, Economic Importance | Biology Class 12

Zoology | Notes
Fish Farming
Class : 12

It is the commercial rearing of fish for human consumption. The term fish farming generally refers to pond fish culture where fishes are grown in the ponds for commercial purpose. During selection of fish for its farming following points should be considered.

Poultry Farming - Economic Importance | Biology Class 12

Zoology | Notes
Poultry Farming
Class: 12

Poultry includes several types of birds like chicken, ducks etc. and rearing of poultry for the commercial production of meat and egg is called poultry farming. In Nepal poultry industry primarily includes culture of chickens for meet, eggs and fertilizer. In the poultry industry fast growing verities are used and are raised in the well ventilated sheds. There should be proper arrangement of food and continuous supply of fresh water is necessary. Following types of sheds are necessary for poultry farming.

Test Tube Baby (Invitro Fertilization Technology) | Biology Class 12

Zoology | Notes
Test Tube Baby (Invitro Fertilization Technology)

Class : 12

Normally conception occurs when an ovum from an ovary fertilizes with sperm in fallopian tube. The fertilized egg called as zygote travels towards uterus where it is implanted and grows. But many couples cannot conceive pregnancy because of low sperm count, blockage in fallopian tube abnormal sperm and others alike. Test tube baby technique is a method that enables the couples having fertility problems to bear child. In this technique, the ova and sperm are fused in test tube where all the essential nutrients are available. As fertilization is artificially done in test tube, the test tube baby technique is also called as in vitro fertilization (IVF technology)