BELL WORK (Buff Binder – new page) : Copy the ENTIRE question below and write your ENTIRE answer: What two reactants (ingredients) are needed for cellular respiration? oxygen and glucose (food)
Jan 17, 2018
BELL WORK (Buff Binder – new page):Copy the ENTIRE question below and write your ENTIRE answer:
What two reactants (ingredients) are needed for cellular respiration?
oxygen and glucose (food)
Today’s Standard: describe the interactions that occur among [animal] systems that perform the functions of…nutrient absorption… (B.10A)
Set up today’s page…
• Page: 70• Date: 3-16-15• Title: Nutrient Absorption• Essential Question: How do animal
systems interact to absorb nutrients?
What does your body need?
•Food (carbohydrates, lipids, proteins, vitamins, minerals)
•Water
•Oxygen
NUTRIENT ABSORPTION
Digestive Respiratory Circulatory
SYSTEMS INVOLVED
DIGESTIVE SYSTEM
• Main Parts:–Mouth–Esophagus–Stomach–Small intestine–Large intestine
DIGESTIVE SYSTEM
• Main Functions:–Mouth breaks down food into smaller
pieces–Stomach acids break food into
biomolecules (carbs, lipids, proteins)–Small intestine absorbs nutrients–Large intestine absorbs excess water
RESPIRATORY SYSTEM
• Main Parts:–Nose–Mouth–Lungs–Diaphragm
RESPIRATORY SYSTEM• Main Functions:–Nose & mouth filter air as it comes in–Diaphragm contracts and relaxes to move the
lungs–Lungs expand and contract for inhaling &
exhaling–Oxygen diffuses into blood
CIRCULATORY SYSTEM
• Main Parts:–Blood vessels–Heart–Red blood cells
what’s in
red blood cells white blood cells
platelets
plasma
carbon dioxide
digested food
waste (urea)
hormones
oxygen
CIRCULATORY SYSTEM
• Main Functions:–Heart pumps blood through the body–BLOOD TRANSPORTS:• oxygen & carbon dioxide • nutrients from the digestive system
INTERACTION: Maintaining Homeostasis • Balancing glucose levels in blood
pancreas
pancreas
insulin
liver takes upglucose for storage
cellstake upglucose from blood
liver releasesglucose to blood
depress appetite
stimulatehungerglucagon
DEBRIEF:
Explain how all three systems work together for nutrient absorption in the body.Nutrients are taken in by the digestive system through food, and the respiratory system from the air. The nutrients are moved throughout the body by the circulatory system through the blood.