5marks ka QUESTION h plz answer.......Q1.what is the nutrition? Explain various types of Nutrition explain the process of photosynthesis with required chemical reaction?
Answers
Answer:
Nutrition is the process by which an organism procures its nourishment, the supply of nutrients required by its body and cells to stay alive. Nutrition is of two types namely, autotrophic and heterotrophic mode of nutrition.
Plants exhibit autotrophic mode of nutrition. They prepare their own food by the process of photosynthesis.
Animals exhibit heterotrophic mode of nutrition. Heterotrophic mode of nutrition can be categorised into holozoic mode, parasitic mode and saprophytic modes of nutrition.
*Holozoic mode of nutrition is the process in which an organism takes in whole food. The food ingested undergoes digestion, absorption and assimilation. e.g. small organisms like amoeba large organisms like human beings.
*Parasitic mode of nutrition is the process in which organism derives its nourishment from host organisms either in liquid form or nutrient form. e.g. Taenia solium is the tape worm living in human intestine.
*Saprophytic mode of nutrition is the process in which organism derives its nourishment from dead and decaying matter. e.g. Fungi are heterotrophs that acquire their nutrients from dead and decaying matter by absorption.
The chemical equation representing the process of photosynthesis is
with-the-help-of-chemical-equation-explain-the-process-1
Photosynthesis may be defined as a photochemical reaction, during which carbohydrates are formed from carbon dioxide and water in the chloroplasts of the green plants in presence of sunlight.
Carbon dioxide, water, light and chlorophyll are essential requirements for photosynthesis.
Glucose, oxygen and water are the products of the reaction. Oxygen is released into the atmosphere.
Photosynthesis have two phases : 1. Light reaction 2. Dark reaction
Light reaction have three steps as
Oxidation of chlorophyll 2) Photolysis 3) Formation of ATP, NADPH2
In dark reaction, CO2 is utilized and finally formed glucose, which is converted and stored as starchSynthesis of glucose occurs in a number of steps
Explanation:
Nutrition is a process by which the organism obtain and utilize the energy of nutrients (food in Various biological activities)
Types of nutrition :-
Autotrophic mode of nutrition
(synthetice their food with in their own body)
1:-phototrophic mode :-They do photosynthesis
example:- All green plants
2:-Chemotrophs:- They get their food from composition of some chemicals
Example:-Sulfur bacteria
Hetrotrophic mode of nutrition
(hetrotrophs get their food from others)
1:-Parasitic mode
Exoparasite
Example:-leach
Endoparasite
Example:-Ascaris
Partial parasite
Example :-Mistletoe,Viscum
Total parasite
Example :-Cuscuta ,herbivorous,carnivorous,Omnivorous
2:-Saprotrophic mode of Nutrition
Example :-pradatore:-Lion etc
3:- Holozoic mode of Nutrition
Example :-All symbiosis example :- lichens
Decompsers:- ex :- bacteria
scavangers:-ex:- Fungi ,vulture,dog etc
Insectivourous:-ex:- Droresia piclure plant
Now Photosythesis:-is an biochemical process in which plant synthesize their own food in their. green part like leafs by utilizing raw material like co2 from air and water from soil in presence of sunlight and chlorophyll pigment .
Equation of Photosynthesis:-
6Co2+12H2O In presence of sunlight
chlorophyll------->C6H12O6+6H2O+6O2
please write sunlight and chlorophyl on up and down side of arrow
Hope its helpfull