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Carbohydrate wikipedia , lookup

Circle of Life
Organic polymers made from amino acids
Must be linked and folded in specific ways to function properly
Coded into our DNA
Enzymes, hormones, and antibodies
20 Amino Acids
• Nonessential (14)
• Essential (6)
–Body manufactures
–Must obtain from the food we eat
them naturally
–Kwashiorkor = “rejected one”
• Protein deficiency which often occurs in
children where protein is scarce
• Once child stops breastfeeding their
diet becomes high in fiber and
carbohydrates but lacking in protein.
This causes liver to become enlarged
and creates a swollen belly
Blood Sugar
amount of glucose in blood
job is to provide energy
• Bad carbohydrates
– Refined and processed
– Easy for body to break
down & absorb causing a
spike (sugar high)
• Good carbohydrates
– Difficult for body to break
down sugars
– Enters blood at a slower
rate and does not produce
sugar high
– Fruits, veggies, greens,
whole grains
• Fats
• Used to store energy
• If there is too much sugar in the blood, the body will convert
sugar to fat and store it as triglycerides
• Unsaturated fats
– Come from plants
– Contain double bond
– Easier to break down
• Saturated fats
– Contains all single bonds
– Difficult to break down and
often stay in bloodstream
blocking arteries
• Anabolism
–Uses energy to
combine smaller
molecules to make
needed substances
–Growth hormone
• Catabolism
–Break down of
–Usually to get energy
–Digesting your food
for example
Tomorrow’s Lab
• Calorimeter- is an insulated device used to measure the
amount of heat absorbed or released during a chemical
• Law of Conservation of Energy = energy (heat)
can not be created nor destroyed
Heat lost = heat gained
Q metal = Q water
C x m x ΔT = C x m x ΔT
Specific Heat Practice I
• Determine the specific heat of the metal:
– Mass of the metal =
– Initial temp of metal =
– Mass of water=
– Initial temp or water =
– Temp of water after metal =
183 g
100 g
Q lost = Q gained
Q metal = Q water
C m ΔT = C m ΔT
C (183) (28-100) = 4.184 (100) (28-9)
C (183) (-72) = 4.184 (100)(19)
C (13176) = 7949.6
C = 0.603