# what are life processes?
• Basic activities that keep an organism alive
•Include nutrition, respiration, transportation, and excretion
•Necessary for growth, energy, repair, and maintenance
#Nutrition
Definition: Process by which organisms take in food and use it
for energy, growth, and repair.
•Autotrophic nutrition:-Organisms
make their own food (e.g., plants)
Autotrophic nutrition
• Photosynthetic autotrophic nutrition
• Chemosynthetic autotrophic nutrition
,#Photosynthetic
autotrophic
Nutrition
6 CO2 +12 H2O → C6H 1206 + 60 H2O
ⓘ absorption of Light Energy by chlorophyll
ⓘ Conversion of light energy to chemical energy and splitting
of water molecules into hydrogen and oxygen
ⓘ Reduction of carbon dioxide into carbohydrates
#Cross-section of leaf
, #what is stomata?
•Tiny pores present the surface of the leaf
• Basic activities that keep an organism alive
•Include nutrition, respiration, transportation, and excretion
•Necessary for growth, energy, repair, and maintenance
#Nutrition
Definition: Process by which organisms take in food and use it
for energy, growth, and repair.
•Autotrophic nutrition:-Organisms
make their own food (e.g., plants)
Autotrophic nutrition
• Photosynthetic autotrophic nutrition
• Chemosynthetic autotrophic nutrition
,#Photosynthetic
autotrophic
Nutrition
6 CO2 +12 H2O → C6H 1206 + 60 H2O
ⓘ absorption of Light Energy by chlorophyll
ⓘ Conversion of light energy to chemical energy and splitting
of water molecules into hydrogen and oxygen
ⓘ Reduction of carbon dioxide into carbohydrates
#Cross-section of leaf
, #what is stomata?
•Tiny pores present the surface of the leaf
