Nutrition Flashcards
Word equation and balanced symbol equation for photosynthesis
Carbon dioxide + water goes to glucose and oxygen (in the presence of chlorophyll and light)
6(CO2) + 6(H2O) goes to C6H12O6 + 6(O2)
3 Factor that effect the rate of photosynthesis
CO2 concentration
Light intensity
Temperature
(Chlorophyll can also be a limiting factor)
5 adaptations of the leaf for photosynthesis
Broad SA for light
Chloroplasts found in palisade layer, at the top for most light
Upper epidermis is transparent to let light through to the chloroplasts
Vascular bundles (Xylem and Phloem) for transport and support
Waxy cuticle reduces water loss from evaporation
Where are most chloroplast found in the leaf?
Palisade layer
What minerals aid plant growth?
Magnesium ions for chlorophyll
Nitrate ions for proteins and amino acids
Name 3 vitamins and their purpose
A- improve vision, helps for healthy skin and hair
C- prevents scurvy
D- calcium absorption
Function of the mouth
Salivary glands produce amylase
Teeth increase SA:Vol
Function of oesophagus
Connects mouth and stomach
Function stomach
Pummels food
Produces pepsin (protease)
Function of small intestine
Produces protease amylase and lipase
Absorbed out of alimentary canal
Made of the duodenum then the ileum
Function of pancreas
Produces amylase lipase and protease
Function large intestine
Where excess water is absorbed
Adaptations of the small intestine
Large SA, for absorption (due to villi)
Microvilli increas SA even more
1 cell thick for quicker diffusion
Good supply of blood to maintain high concentration gradient
What’s Bile?
Produces in the liver, stored in the gall bladder
Neutralises stomach acids
Emulsifies lipids
