Food Edmodo Test Flashcards
What do bile salts do
Emulsify fats/ neutralize acid in stomach
What do anti ammunities do
Form antibodies
Productions of memory
What happens when humans sweat during exercise
Body temperature increases
Sweat evaporates using heat from body
Why should antibodies not be prescribed for the flu
Not effective against virus’s
Could kill useful bacteria
Why is high sugar/ salt concentrations hard in food presentation
Food decay caused by bacteria
Death of bacteria
Herotrophic
Get food from environment
Omnivores
Eat both plants and animals
Balanced diet
Corrects amount of each food type for health
Lipase
A diverse group of substances that digest fat
Name one part of the alimentary canal that secretes lipase
Stomach
Functions of large intestine
Absorption of water
Peristalces
2 beneficial functions of the bacteria that live in the digestive tract
Production of vitamins
Benefit immune systems
PH contents of the small intestine
Highly acidic
Polysaccharides
Many monosaccharides sugar molecules joined together
Main structure of polysaccharides in plants
Cellulose (allow pectin)
Describe composition of triglyceride molecules
Fatty acids and glycerols
Structure role of lipids
Allow insolation
Test/ chemicals used to demonstrate presence of protein in a food
Buiret/ copper sulfate + sodium hydroxide
Name a protein that has a fiberous structure
Keratin
Why is water required by a living organism
Reaction medium
Transport
Metallic element present in haemoglobin
Iron (fe)
Metabolic role of proteins
Forms antibodies
Structural role of protein
Growth of hair and nails
Name 2 biomolecular components of a lipid
Glycerol
Fatty acids
Where do you find phospholipids in the human cell
Membrane
Percentage of water (by mass) in human cell
70 - 95%
How does a phospholipid differ from a fat
Phospholipids have 2 fatty acids
Fats have 3 fatty acids
Fat Soluble
D
State a disorder due to lack of vitamin
Rickets
Rickets
Disease when bone tissue doesn’t mineralized leading to soft bones and skeletal deformities
2 functions of minerals in organisms
Formation of soft tissue and pigment
Benedicts or fehlings
Reducing sugar
Symbiotic bacteria
Bacteria that live in or on another organism involving benefit
Wheee is the lipase secreted
Pancreas or duodenum
Distinguish between starch and glucose
Starch is a polysaccharide
Glucose is a monosaccharide
Distinguish between cellulose and keratin
Cellulose is a polysaccharide
Keratin is a protein
Distinguish between buiret test and Benedict’s (fehlings)
Buiret is a test for protein
Benedict’s is a test for reducing sugar
Distinguish between Dad and oils
Fats are solid at room temperature
Oils are liquid at room temperature
