Andhra Pradesh Residential Educational Institutions Society (APREIS), Nampally, Hyderabad has issued notification inviting applications for admission into 5th Class in 73 General and 26 Minority Residential Schools located across the state. Admission into following Regional Center of Excellence Schools also will be through the extrance examination:
1) Tadikonda, Guntur District
2) Kodigena Halli, Anantapur district
3) Sarvel, Nalgonda district
Eligibility: Applicants should be from OC, SC, ST and BC categories. They must be from respective districts where they are applying. Income of the parents should be less than Rs. 60000 per annum.
Information brochure can be downloaded from the website aprjdc.cgg.gov.in OR www.apresidential.gov.in . Last date for the submission of filled in applications is 2nd April 2014.
10th Biology - Nutrition in Human Beings- New Syllabus
Nutrition in Human Beings: Human digestive system is very complex in nature where different parts are involved and perform different functions by using various digestive juices and enzymes.
Let us observe the figure of digestive system. The alimentary canal is basically
a long tube extending from the mouth to the anus we can see that this tube
has different parts. Various regions are specialized to perform different functions.
• What happens to the food once it enters our body?
• How it get digestive in the alimentary canal? let us discuss. We eat various types of food which has to pass through the same digestive tract. The process of taking food in the body is called ingestion. Naturally the food has to be processed to generate particles which are small enough to be picked up by our body. The texture
also needs to be such that it may be easily absorbed.
Steps in the passage of food through alimentary canal or gut. Food is masticated by our teeth in the mouth and mixed with saliva to make it wet and slippery it helps in smooth passage through our alimentary canal to the stomach. Saliva is secreted by three pairs salivary glands located at the side of the jaw and below the tongue. They contains an enzyme amylase (ptyalin) which helps in the breakdown of complex carbohydrates to simple ones). Such process of breaking down of complex food
substances into the simple substances so that they can be used by the body with the help of enzymes is called digestion. The tongue helps in mixing the food and pushing it into the next part. The lower jaw also helps in the whole process. To know the chemical nature of saliva, let us do the litmus paper activity.
Let us observe the figure of digestive system. The alimentary canal is basically
a long tube extending from the mouth to the anus we can see that this tube
has different parts. Various regions are specialized to perform different functions.
• What happens to the food once it enters our body?
• How it get digestive in the alimentary canal? let us discuss. We eat various types of food which has to pass through the same digestive tract. The process of taking food in the body is called ingestion. Naturally the food has to be processed to generate particles which are small enough to be picked up by our body. The texture
also needs to be such that it may be easily absorbed.
Steps in the passage of food through alimentary canal or gut. Food is masticated by our teeth in the mouth and mixed with saliva to make it wet and slippery it helps in smooth passage through our alimentary canal to the stomach. Saliva is secreted by three pairs salivary glands located at the side of the jaw and below the tongue. They contains an enzyme amylase (ptyalin) which helps in the breakdown of complex carbohydrates to simple ones). Such process of breaking down of complex food
substances into the simple substances so that they can be used by the body with the help of enzymes is called digestion. The tongue helps in mixing the food and pushing it into the next part. The lower jaw also helps in the whole process. To know the chemical nature of saliva, let us do the litmus paper activity.
10th New Syllabus Biology - Autotrophic Nutrition
Autotrophic Nutrition: We know that autotrophs are the organisms capable of using light energy to synthesize chemical compounds. They acquire nutrients like some minerals and water from the soil as well as some gases from the air. They are capable of producing large compounds like carbohydrates, proteins, lipids etc. from these very simple substances. These carbohydrates produced by plants are utilized for providing energy in most living organisms and all animals including human beings.
Everything we eat comes from plants why don’t the plants get used up? What are they using to grow and produce more plants, more seeds?
Scientists have been working for centuries to find out how plants carry out their life processes. We know that among all life processes, the process of photosynthesis makes plants the universal food provider for all living organisms.
You had studied somthing about photosynthesis in your earlier classes. Van helmant and other scientiests believed that platns gets food material not only from soil other factors are also there. What do you think are some raw materials needed for photosynthesis?
What could be the end products of the process of photosynthesis? Let us study the process of photosynthesis in detail to find out more about this.
Photosynthesis:
Photosynthesis is the process by which all green plants contains the green pigment called chlorophyll, which build up complex organic molecules from relatively simple inorganic ones using light as an energy source. The process is very complex and there are several steps as well as intermediary compounds that are formed. Scientists had tried to formulate a simple equation for photosynthesis over the past 200 years. An equation that was readily accepted and is still widely used is the one formulated and proposed by C.B. Van Neil in the year 1931 which is as follows. His opinion was, “for each molecule of carbohydrate formed, one molecule of water and one molecule oxygen is
also produced”. This is a very simplified equation and does not reflect the complexity of the process of photosynthesis yet we shall use it for now. What would be the reaction to show that glucose (C6H12O6) is being synthesized?
Write down a balanced equation to show this. It is known that plants synthesize carbohydrates, the smaller simpler ones first and from which the more complex ones like starch and cellulose are synthesized. Plants are also capable of synthesizing all other compounds like proteins, fats etc.
Animals are not capable of synthesizing carbohydrates and they have to depend on plants for the same. Can we state that photosynthesis is the basic energy source for most of the living world? Why, why not? Let us find out whether plants produce carbohydrates by the process of photosynthesis.
Everything we eat comes from plants why don’t the plants get used up? What are they using to grow and produce more plants, more seeds?
Scientists have been working for centuries to find out how plants carry out their life processes. We know that among all life processes, the process of photosynthesis makes plants the universal food provider for all living organisms.
You had studied somthing about photosynthesis in your earlier classes. Van helmant and other scientiests believed that platns gets food material not only from soil other factors are also there. What do you think are some raw materials needed for photosynthesis?
What could be the end products of the process of photosynthesis? Let us study the process of photosynthesis in detail to find out more about this.
Photosynthesis:
Photosynthesis is the process by which all green plants contains the green pigment called chlorophyll, which build up complex organic molecules from relatively simple inorganic ones using light as an energy source. The process is very complex and there are several steps as well as intermediary compounds that are formed. Scientists had tried to formulate a simple equation for photosynthesis over the past 200 years. An equation that was readily accepted and is still widely used is the one formulated and proposed by C.B. Van Neil in the year 1931 which is as follows. His opinion was, “for each molecule of carbohydrate formed, one molecule of water and one molecule oxygen is
also produced”. This is a very simplified equation and does not reflect the complexity of the process of photosynthesis yet we shall use it for now. What would be the reaction to show that glucose (C6H12O6) is being synthesized?
Write down a balanced equation to show this. It is known that plants synthesize carbohydrates, the smaller simpler ones first and from which the more complex ones like starch and cellulose are synthesized. Plants are also capable of synthesizing all other compounds like proteins, fats etc.
Animals are not capable of synthesizing carbohydrates and they have to depend on plants for the same. Can we state that photosynthesis is the basic energy source for most of the living world? Why, why not? Let us find out whether plants produce carbohydrates by the process of photosynthesis.
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