Digestive System. Do Now On your own, write down in as much detail as possible, where the digestion...
-
Upload
octavia-moody -
Category
Documents
-
view
212 -
download
0
Transcript of Digestive System. Do Now On your own, write down in as much detail as possible, where the digestion...
Do Now On your own, write down in as much
detail as possible, where the digestion process starts, where it is completed and everything in between
Collaborate with a partner to create a final list of the digestion process
Homework Due Tomorrow Read 30.4 Define:
Excretion Ureter Urinary bladder Urethra Nephron Filtration Glomerulus Bowman’s Capsul Reabsorption Loop of Henle
Review• Food contains energy, used by the cells by
what is called ATP• The energy available in food can be
measured by burning it!• The heat that is created can be measured in
“Calories”• Calorie- the amount of heat needed to raise
the temperature of gram of water by 1 degree C
• 1 Calorie = 1000 calories
Review• Water• Carbohydrates
• Complex carbs contain fiber which can reduce the risk of heart disease
• Fats• Proteins• Vitamins• Minerals
Diagram Digestive System Handout – Digestive vocab
Functions of Digestive System Converts food into small molecules Food is processed by:
Ingestion Digestion Absorption Elimination
Ingestion First step The process of putting food into your
mouth The role of teeth
Are teeth important in digestion? How do human’s teeth reflect an
omnivorous diet?
Digestion Mechanical Digestion – physical
breakdown of large pieces of food into smaller pieces
Chemical digestion – breakdown of small particles into molecules the body can use
Vitamins and minerals
Absorption Where does absorption occur? Majority of absorption occurs in the
small intestine Once broken down, molecules travel
throughout the body system
Elimination Body does not absorb all the substances
that are ingested Remaining products are eliminated
through waste
Dr. Beaumont “Father of Gastric Physiology” Experimented with the stomach and
how food was broken down and processed
Homework Due Tomorrow Read 30.4 Define:
Excretion Ureter Urinary bladder Urethra Nephron Filtration Glomerulus Bowman’s Capsul Reabsorption Loop of Henle