Biology Introduction and its branches

͢In this world we come across with soo many things. we interact with them and want to know about them. so for this purpose study came into existence to know about the hidden features and phenomenon of the world , so called science.

Biology is the branch of science in which we study about the living creature/things to obtain the maximum knowledge about them for our benefit. we try to understand our body structure our machinery. we study about different plants and animals to know about their benefits and losses/harmful effects.

Main Branches of biology

zoology ⬅️BIOLOGY➡️ Botany

⬇️ ⬇️

Deals with the study of Animals Deals with the study of Plants

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Absorption of Nutrients in Small Intestines

The digested food is now in simple form and is ready to use by cells. The inner wall of small intestines is called as Mucosa, it has numerous finger like projections called as Villi (singular- villus), which in-turn has finger like projections called as micro-villi. The purpose of villus is to provide large surface area for nutrient absorption. Villi have large network of blood capillaries, where the nutrients are absorbed in blood by diffusion.Most of the nutrients are absorbed in jejunum. except Iron is absorbed in duodenum vitamin B12 and bile salts are absorbed in the terminal ileum. Through blood digested food reaches to each and every cell of the body.

Photosynthesis for class 10th

● Photosynthesis ( Photo=Light) :-The biological process In which the plants synthesis their own food with the help of SunLight, Carbon Dioxide and water.It is the characteristic feature of plants. Photosynthesis takes place in the leaves of plants.where the sunlight is traped by green pigment chloroplast.Carbon Dioxide is taken from Atmosphere through Minute pore On leaves called stomata and water is absorbed by roots from soil and conducted to leaves through xylum to leaves. Oxygen is released after Respiration through stomata. Examine the below Diagram

Modes of Nutrition for 10th class

Modes of Nutrition in Organism 1. Autotrophic mode of nutrition:- In this mode of nutrition, organisms synthesize their own food by using simple raw materials from their environment . Examples are Plants , some bacteria, algae and euglina. It has following sub types Photo-autotrophic Nutrition:- In this mode of autotrophic nutrition organisms synthesize their own food by using simple raw material from their environment e.g carbon dioxide,water and sunlight. examples are Plants , Algae etc. These organisms have special units in their cell to trap sunlight called as Chloroplast which are green in color. chemo-autotrophic nutrition:- In this mode of nutrition organisms synthesize their food from some chemicals. e.g some bacteria ( sulfur-oxidizing bacteria , nitrogen-fixing bacteria ) KEEP LEARNING , KEEP SHINING see the next post for further

Simple Biology

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