Unit 11 & 12: Digestive and Urinary System Flashcards
Digestion
proccess by which food is broken down by the digestive system into small nutrients to be absorbed by the body.
Nutrients (Biomolecules)
Tiny molecules that are broken down from large molecules to be absorbed and used by the body cells.
Chewing of food
Mastation
Squeezing and te movign of food along the alimentary canal (digestive tract)
Peristalsis
Digestion
Breaking down of ingested food, absorption of nutrients into blood.
Metabolism
Production of Cellular energy (ATP)
Carbohydrates
1) Monomer
2) Structure
3) Elements
4) Examples
5) Functions
Carbohydrates
1) Monosaccarides
2) Hexagon/pentagon
3) CHO (1:2:1)
4) Glucose, fructose, galactose, lactose, dextrose
5) Short term energy
Lipids (Fats)
1) Monomer
2) Structure
3) Elements
4) Examples
5) Functions
Lipids
1) Triglycerides or fatty acids
2) +—-
3) CHO; wayyy less O2 tho
4) Triglyerides, Phospholipids
5) Protection, long term energy, heat production
Proteins
1) Monomer
2) Structure
3) Elements
4) Examples
5) Functions
Proteins
1) Amino Acids
2) >+<
3) CHON
4) Hair, Bone, muscles, meat
5) Enzymes, hormones, immune, movement, support.
Nucleic acids
2) 1) Monomer
2) Structure
3) Elements
4) Examples
5) Functions
Nucleic Acids:
1) Nucleotides
2) pentagon–hexagon
3) CHONP
4) DNA/RNA
5) Blue print for proteins
Chemical process that breaks down polymers/macromolecules:
Hydrolysis
Why do we eat?
1) Food has chemical energy stored in it
2) The energy is released by breaking the food downm in the digestive system.
Two ways the body uses energy:
1) Chemical to Mechanical energy (movement)
2) Chemical to Thermal energy
(body heat)
How is energy for cells created (cellular level):
1) ATP released when the last attached (3rd one) phosphate is removed (2 are left).
ADP —->ATP
Alimentary canal:
Pathway in which food enters and waste is expelled.
Organs of the Alimentary canal:
Mouth, Pharynx, Esophagus, Stomach, Small intestines, Large Intestines, Anus.
Accessory organs:
Salivary Glands, Teeth, pancrease, liver, gall bladder.
Mechanical vs Chemical digestion
Physicallly altered vs chemically altered
What type of digestion is peristalsis:
Mechanical
Mouth anatomy
Tongue:
- Smashing food
- taste- gustatory buds
- moving food
Mouth anatomy
Hard palet
- forms the anterior roof: smashing
Mouth anatomy
Soft palate
- Forms the posterior of the roof: Guides down to esophagus
Mouth anatomy
Uvula
- fleshy projection of the soft pallet
Mouth anatomy
Teeth
- To masicate (chew) food
- chew, tear, mash, mix, crush
Mouth anatomy
Salivary Glands
- Saliva producing glands
- ## Saliva with Amylase (breaks down starches/carbs)
Location of Salivary Glands:
- Parotide glands- located anterior to ears
- Submandible glands
- Subliungual glands
Pharynx Function
- Passageway for air and food
- Epiglottis- routes food and water towards esophagus via persitalsis pushing.