1. NUTRITION
The acquiring of the raw materials needed to build the organism and provide energy

2. Autotrophs
Fats
Pancreas
Photosynthesis
Protein
Duodenum
Chemosynthesis
Vitamins
Ileum
Leaves
Minerals
Caecum
Light stage
Water
Appendix
Dark stage
Enzymes
Colon
Chloroplasts
Deficiency diseases
Rectum
Chlorophyll
Vegetarianism
Anus
Oxygen
Vegan
Saphrotrophs
Carbon Dioxide
Balanced Diet
Decomposition
Sunlight
Gender and nutrition
Bacteria
Heterotrophs
Age and nutrition
Fungi
Ingestion
Occupation and nutrition
Detrivores
Digestion
Illness and nutrition
Absorption
Alimentary canal
Assimilation
Mouth
Egestion
Teeth
Macronutrients
Oesophagus
Micronutrients
Stomach
Carbohydrates
Liver

3. Autotrophs to obtain nutrition by organisms making their own food
Photosynthesis the process of using energy from the sun to make organic food using inorganic materials, e.g., plants and many microbes
Chemosynthesis making food using simple inorganic substances (ammonia)
Heterotrophs cannot make their own food so they consume other organisms for nutrition
Food pass through a digestive tract and undergo five basic processes (ingestion, digestion, absorption, assimilation and egestion)
Enzymes speed up all chemical reactions and processes
Saphrotrophs consume other organisms for nutrition except they begin to digest food outside the body then ingest partially or completely digested food.
Examples decomposers (bacteria and fungi), flies and spiders

4. Leaves the organ of photosynthesis for plants
Chloroplast a plant cell organelle were photosynthesis occurs
Chlorophyll a common green pigment that found in the chloroplast that is able to trap/absorb sunlight energy
Light stage the stage during photosynthesis when light energy is absorbed and used to split water molecules into hydrogen ions and oxygen molecules
Dark stage the stage in photosynthesis when high energy hydrogen reacts with carbon dioxide to produce glucose
Carbon dioxide an inorganic molecule that can be converted by photo – autotrophes into organic nutrients

5. Photosynthesis
The process by which plants make their own food from raw materials using energy from the sun
Carbon Dioxide +water Sunlight and chlorophyll glucose +oxygen
6CO2 +6H2O Sunlight and chlorophyll C6H12 O6 + 6O2
The carbon dioxide is absorbed through stomata in the leaves
The water is obtained through roots from the soil
Chlorophyll is the green pigment found in the chloroplasts of leaves
Glucose is a starter food that can be converted to any substance the plant needs example glucose can be converted to:
sucrose sugar for transport or in fruits
Starch for storage e.g.cassava
Proteins with the addition of absorbed soil nitrates e.g. peas
Fats for storage in seeds
Oxygen is released into the atmosphere and used in respiration

6. Photosynthesis is divided into two stages
Light reaction
Dark reaction
During the light reaction chlorophyll in leaves use absorbed sunlight to split the water molecule H2O into Hydrogen and Oxygen. This process is called the evolution of oxygen. Waste O2 is released via the stomata.
{sunlight energy + 2H2O = 2H+ + O2 gas}
During the dark reaction the high energy hydrogen ions combine with carbon dioxide to form glucose. (This process is called reduction of carbon dioxide)
{H+ + CO2 = C6H12O6 glucose}