Food Flashcards
What is nutrition
The way in which organisms take in and use food
What are the functions of food
Energy
Repair growth
Chemicals needed for metabolic reaction
Main elements in food
Carbon Hydrogen Nitrogen Oxygens Phosphorus Sulfur
What is the metabolic role of carbs
Release energy in respiration.
What is the structural role of carbohydrate
Cellulose in cell walks
What are the uses of carbs
Store and use energy
What are the elements in carbs
Carbon hydrogen and oxygen
Example of a monosaccharide
Glucose sweets
Example of a disaccharide
Glucose + glucose = maltose
Glucose + galactos = lactose
What does starch consist of
Long chains of glucose
What is cellulose made of
Long chains of glucose rings joined by cross bonds
What is glycogen made from
Branched glucose molecule
What is the metabolic role of fat
Energy carried out in respiration
What is the structural role of fat
Cell membranes
Protective layer around organs
What are dats made of
One glycerol and 3 fatty acids
What is the metabolic role of protein
Makes enzymes hormones and antibodies
What are the structural roles of protein
Fibrous = keratin
What are the elements in protein
Carbon nitrogen oxygen hydrogen
What are amino acids held together by
Peptide bonds
What are many amino causes joined together called
Polypeptide chain
What are the types of folding in protein.
Fibrous eg keratin
Globular eg hormones
What are vitamins
Substances the body cannot make
What is but c also know as
Ascorbic acid
What is bit c needed for
Healthy connective tissues
What happens when you lack bit c
Loose teeth
What are the functions of vit c
Healthy bones and teeth
What are minerals needed for
Form rigid body structures eg cell walls
Make soft body parts eg sulfur form muscle
Make body fluid eg sodium in tears
Minerals required by plants
Calcium from soil to Pectate in cell walls
Magnesium absorbed from soul forms part of the structure of chlorophyll
What are anabolic reactions
smaller molevukes to larger
Eg photosynthesis
What are catabolic enzymes
Large molecules to small
Eg respiration
What is hydrolysis
Addition of water to break a bond
What is condesation teactuon
Removal of water to create a bind
