Summary
📚Quick recap of all life processes:-
- Life processes are activities needed to maintain life
- Like nutrition, respiration, transportation, Excretion etc.
- All these involves energy and maintenance of internal environment.
- Nutrition:-are the process of taking food and converting into energy.
- In plants use of sunlight, chlorophyll, water , co2 for Photosynthesis. (6CO2 + 6H2O —–> C6H12O6 + 6O2).
- In animals:- Holozoic, saprophytic, Parasitic type of nutrition.
- Human Digestion:- mouth —–> oesophagus —–> stomach —–> small intestine —–> large intestine —–> anus.
- Respiration:- Breakdown of glucose to release energy. 1.) aerobic respiration:- with oxygen, more energy 2.) anaerobic respiration:- without oxygen less energy.
- Nose—–>trachea—–>bronchi—–>lungs—–>alveoli
- Transportation
- In humans:-
- 🔷️Double circulation:-Pulmonary(heart to lungs) Systemic(heart to body).
- 🔷️Blood:- RBC,WBC,PLATELETS and PLASMA
- 🔷️lymph:- colourless fluid part of immune system.
- In plants:-
- 🔷️xylem:- water and minerals,
- 🔷️Phloem:- food via Translocation
- 🔷️Transpiration:- helps pull water upwards.
- Excretion
- in humans:-
- kidney: filters urea from blood,
- Nephron: functional unit of kidney, also through lungs (co2) and skin (sweat).
- In plants:- less complex, wastes: O2, CO2, water, resins, gums etc. Removed by stomata, lenticels, and stored in old leaves or barks.
- Kidney failure and dialysis :- When kidney stops working. DIALYSIS: artificially removal of wastes using a machine.
- Kidney transplant:- May be needed for complete cure of kidney failure.