Transcript Obj 12-15.ppt

Today’s Agenda
• Finish Small Intestine WS and
Lab
• Obj. 14: Large Intestine
• Large Intestine Disorders
Obj. 14: Structure & Function of
Large Intestine
• Functions include:
a. Absorption of water
b. Absorption of electrolytes
c. Absorption of vitamins (B&K)
made by bacteria
d. Defecation
Obj. 14 (cont.)
• Defecation is triggered by feces
entering the rectum.
• The walls of the rectum contract to
move stool.
• Movement is aided by the Valsava
maneuver. In this maneuver we close
the glottis, contract the diaphragm and
abdominal walls to create pressure
distally.
Today’s Agenda 3/5
• Notes on Nutrition
–Obj. 15
• Notes on Metabolism
–Obj. 22
• Meal Planning Activity
Obj. 15
• Calorie: The amount of energy required to
raise the temperature of one gram of water
one degree Celsius.
• Metabolism: Sum total of all chemical
reactions occuring in a body cell.
– May be anabolic (building) or catabolic
(breaking down.)
Obj. 15
• Nutrient: A substance present in
food that is used by the body to
promote normal growth,
maintenance, or repair.
Obj. 15 Nutrients & Their
Sources
• Carbohydrates:
– Cereals
– Grains
– Bread
– Pasta
• Digested in
mouth & Sm. Int.
Obj. 15 Nutrients & Their
Sources
• Lipids:
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Animal products
Dairy
Nuts
Fats, Oils &
Butter
• Digested in Sm. Int.
Obj. 15 Nutrients & Their
Sources
• Protein
– Meats, Nuts, Fats, Oils & Butter
• Digested in Stomach & Sm. Int.
Obj. 15 Nutrients & Their
Sources
• Minerals
– Various Sources
• Absorbed in Sm.
Intestine
Obj. 15 Nutrients & Their
Sources
• Vitamins
– Various Sources
• Absorbed in Sm.
Int. & Large Int.
Obj. 15 Nutrients & Their
Sources
• Water
– Most Food
Substances
• Absorbed in
Large Int.
Name the 6 Essential Nutrients
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Carbohydrates
Lipids
Protein
Vitamins
Minerals
Water
Where would _____ be digested
& absorbed?
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Turkey
Watermelon
Chick-fil-a Chicken Biscuit
Spaghetti noodles
An egg
Hershey Chocolate Bar
Spinach
What’s Metabolism Again?
What’s Metabolism Again?
• Sum total of all chemical reactions
occuring in a body cell.
What’s Metabolism Again?
• Sum total of all chemical reactions
occuring in a body cell.
• What chemical reactions can you
think of that occur in cells?
Obj. 22: Metabolic Rate
• Basal Metabolic Rate (BMR):
• Rate at which energy is expended
(heat produced) by body per time
unit under controlled conditions.
• Energy needed to perform basic
activities
Obj. 22 (Cont.)
• Total Metabolic Rate (TMR):
–Total rate of kilocalorie
consumption to fuel all
ongoing activities---voluntary
& involuntary
–Bulk of TMR is BMR
Does energy for _____ contribute
to BMR or TMR?
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Exercise done in an aerobics class
Breathing
Kidney Function
Taking notes in class 
Cellular Respiration
Meal Planning Activity