TNPSC/TNTET Biology(Botany and Zoology) Study materials Questions and Answers

This Study materials was prepared by using Samacheer kalvi all standard books(6th std to 10th std). In this page we provide all subjects question and answers like as English, Maths Physics, Chemistry, Biology,History, Civics, Geography. 

So This questions and answers are help to the candidates who will attend tamilnadu conducting Competitive examinations test Such as (Tamil Nadu Public Service Commission)TNPSC Group 1,2,3,4,5,6,7,7b,8 & (Tamil Nadu Teachers Eligibility Test)TRB TNTET, Postal department,tnpsc vao(Village administrative officer) Exam, (Tamil Nadu Uniformed Services Recruitment Board)TNUSRB Police Constable/Jail Warden/Fire Men/Sub Inspectors Exams,Bank Exams-2014 etc.,

Below given Important Biology questions and answers for Competitive examinations.
1.What is Sericulture?
The rearing of silk worms for obtaining silk is called Sericulture.
2.what are the types of silk?
There are 4 types of silk. There are 1.Mulberry silk, 2. Tassar silk 3.Eri silk, 4.Muga silk
3.what is the meaning of reeling?
The process of taking out threads from the cocoon is called Reeling.
4.Which district is famous for poultry industry?
Namakkal district in Tamil nadu is famous for poultry industry.
5.List some of the famous wildlife sanctuaries in Tamilnadu?
Vedanthangal,Mudumalai, Mundanthurai,Kalakadu and Kodiakarai.
6.Eapand TAPCO?
Tamil Nadu Poultry Development Corporation.
7.what is autotrophic nutrition?
The mode of nutrition in which organisms make their own food is called Autotrophic Nutrition.
8.what is Heterotrophic Nutrition?
The mode of nutrition in which organisms depend on others for their food is called Heterotrophic Nutrition.
9.what is the meaning of chlorophyll?
The leaves also have a wonderful green substance called chlorophyll.
10.what is the meaning of photosynthesis?
The process of preparing food with the help of water, carbon dioxide,sunlight and chlorophyll in plants is called photosynthesis.
11.Give two examples of saprotrophs?
mushroom, bread mould.
12.What is meant by ingestion?
The process of taking food into the body is called ingestion.
13.What is meant by Digestion?
The process of breaking down of complex food into simple food with the help of enzymes is called digestion.
14.What is meant by Absorption?
The process by which the digested food passes into the villi of the wall of the intestine is called absorption.
15.What is meant by Assimilation?
The ways in which the absorbed food is utilized in cells is called assimilation.
16.What is meant by Egestion?
The removal of undigested food through anus is called egestion.
17.what is meant by peristalsis?
Food in the digestive system moves from the oesophagus to the anus by rhythmic contraction and expansion of the wall of the digestive system. This movement is called peristalsis.
18.Are there animals without teeth?
Yes, Bluewhale, the largest mammal does not have teeth.
19.Do birds have teeth?
Birds do not have teeth.
20.About rat teeth?
Rats have continuously growing teeth.
21.how many times chew food cows?
A Cow makes 40,000 to 60,000 jaw movements per day while it keeps on chewing and rechewing.
22.who is classify plants into three large groups basis their water?
WARMING (1909) classified the plants into three types on the basis of their water requirement.
23.What is meant by Hydrophytes?
Hydrophytes means water plants(Hydro = Water, and Phytes = Plants)
24.Give the example of Hydrophytes?
Water hyacinth (Agayatamarai)
25.What is meant by Mesophytes?
These plants grow in places with moderate water supply. They cannot grow in places with too much of water or too little water. Most of the crop
plants are mesophytes.
26.Give the example of Mesophytes?
Wheat, maize, sunflower,mango, neem.
27.What is meant by Xerophytes?
Xerophytes means desert plants (Xero = Desert and Phytes = Plants)
28.Give the example of Xerophytes?
Radish, wheat, paddy,sunflower.
29.What is meant by fibrous roots?
As these roots arise in cluster, they are also called as fibrous roots.
30.what is the meaning of calyx?
The green, leaf like parts in the outermost circle of a flower arec alled sepals. They protect the flower when it is a bud.
31.what is the meaning of Corolla?
The brightly colouredparts of a flower are called Petals.They are the second part of the flower.
32.where is located botanical garden in tamilnadu?
The Botanical Garden at Ooty, Kodaikanal and Yercaud