CO: I will describe how the digestive system interacts with other systems. LO: I will fill in a graphic organizer. I will listen to descriptions. I will.

Slides:



Advertisements
Similar presentations
Animal Nutrition Human Digestion.
Advertisements

Ch 39 Nutrition, Digestion and absoption
MOUTH ESOPHAGUS ANUS LARGE INTESTINE SMALL INTESTINE STOMACH.
Regents Biology Animal Nutrition Human Digestion.
Human digestive system
Happy Wednesday! Bellwork: March 5 GO BUFFS! Write one similarity and one difference between the nervous and endocrine systems.
CHAPTER 21 Nutrition and Digestion
Human Digestion This part of the life process of NUTRITION  process by which an organism obtains and utilizes food.
Human Digestion -Ch Section Objectives:
Regents Biology Animal Nutrition Human Digestion.
Regents Biology Animal Nutrition Human Digestion.
Human Digestion -Ch Section Objectives: Interpret the different functions of the digestive system organs. Outline the pathway food follows through.
breakin’ it down since the dawn of time
How Do You Build the Molecules of Life? Better Known as Organic Molecules and Digestion…
Digestive System.
AP Biology Animal Nutrition Human Digestion.
Regents Biology Human Digestion Regents Biology What do animals need to live?  Animals make energy using:  food  oxygen  Animals build bodies using:
(the “N” in GRSSNERT) and
Purpose of the Digestive System - the break down of food into nutrients digestion: process that breaks down food into small molecules so that they can.
Why Nutrition  We need energy…  Can we get it from the sun like plants? (producers)  We are consumers, so we have to CONSUME food for energy.
Human Digestion.
Human Digestion & Human Nutrition. Nutrition All the activities by which an organism obtains and uses food for growth and repair of cells.
Getting & Using Food Ingest taking in food Digest mechanical digestion breaking up food into smaller pieces chemical digestion breaking down food into.
Explain generally how the digestive system (mouth, pharynx, esophagus, stomach, small and large intestines, rectum) converts macromolecules from food.
Human Alimentary Canal Part 2 Grade 8 Semester 1 Year
Digestive System Midterm Content.
Animal Nutrition and Digestion Nutritional requirements Animals are heterotrophs – need to take in food – Why? fulfills 3 needs… fuel = chemical energy.
Animal Nutrition Human Digestion What do animals need to live? Animals make energy using: – food – oxygen Animals build bodies using: – food for raw.
Regents Biology Animal Nutrition Human Digestion.
UNIT 6: BODY SYSTEMS Miss Sabia Regents Living Environment (adapted from Mrs. Folgia from Division Ave High School)
Variations, Adaptations & Regulation
What to think about….. What is the digestive system? Why do we need it (what’s its function)? How does it work? What are the different parts and their.
Unit 1. Energy Production and Transport RespirationDigestion Transport Digestive System Respiratory System Cells C 6 H 12 O 6 + O 2  CO 2 + H 2 O Energy.
 To break down and absorb food  physical digestion: breaking pieces of food into smaller pieces  chemical digestion: breaking food molecules into.
Digestive System. Primary Function of Digestive System  Used to breakdown the food.  The body absorbs the nutrients and uses it for energy.
Bellwork: A.Quickwrite (54 words – attach a sheet of paper if necessary): What body systems are involved with nutrient absorption? Defense against illness.
Animal Nutrition Human Digestion What do animals need to live? Animals make energy using: –food –oxygen Animals build bodies using: –food for raw materials.
Digestive System. 6 Types of Nutrients 1.Title the next page in your toolkit “6 Types of Nutrients” 2.Make a small copy of the key to the right in the.
AP Biology Animal Nutrition AP Biology What do animals need to live? O2O2 food ATP  Animals make energy using:  food  oxygen  Animals build bodies.
HUMAN PHYSIOLOGY NUTRITION Heterotrophic- organic molecules needed Carbohydrates- hydrolysis to simple sugars, excess sugar is stored as glycogen or fat.
Human Digestion This part of the life process of NUTRITION-> process by which an organism obtains and utilizes food.
Animal Nutrition Human Digestion – Ch 38
Human Digestion GI (gastrointestinal) tract = alimentary canal
Variations, Adaptations & Regulation
Variations, Adaptations & Regulation
Aim: Animal Nutrition/Human Digestion
The Digestive System.
Digestive System!!!.
Animal Nutrition Human Digestion
Digestive System Midterm Content.
Warm-Up Take out HW & place on desk
Homeostasis Is a condition of a stable internal environment.
Animal Nutrition Human Digestion.
Animal Nutrition Human Digestion
Variations, Adaptations & Regulation
Animal Nutrition Human Digestion
Animal Nutrition Human Digestion
Chapter 11: The Digestive System Waggy
Animal Nutrition Human Digestion.
How did you do?.
Chapter 32: Digestive and Excretory Systems
Animal Nutrition Human Digestion
Variations, Adaptations & Regulation
Variations, Adaptations & Regulation
What do animals need to live?
Variations, Adaptations & Regulation
Animal Nutrition Human Digestion.
Animal Nutrition Human Digestion.
Variations, Adaptations & Regulation
Variations, Adaptations & Regulation
Presentation transcript:

CO: I will describe how the digestive system interacts with other systems. LO: I will fill in a graphic organizer. I will listen to descriptions. I will create a brochure.

What do animals need to live? Animals make energy using: – Food (glucose) – Oxygen This process is known as cellular respiration Animals build bodies using: – food for raw materials amino acids, sugars, fats, nucleotides – ATP energy for synthesis – Water for hydrolysis and dehydration synthesis O2O2 food ATP mitochondria

Take Off, Touch Down! Stand up for true, sit down for false. Food spends 2-6 hours partially digested in the stomach In 12 to 24 hours, any undigested material passes through the large intestine, and feces are expelled through the anus Your stomach can stretch to fit ~1/2 gallon of food in it.

Getting & Using Food Ingest – taking in food Digest – mechanical digestion breaking up food into smaller pieces – chemical digestion breaking down food into molecules small enough to be absorbed into cells enzymes Absorb – absorb nutrients across cell membranes diffusion active transport Eliminate – undigested material passes out of body intracellular digestion extracellular digestion

mouth  break up food  digest starch  kill germs  moisten food

stomach  kills germs  break up food  digest proteins  store food sphincter mouth  break up food  digest starch  kill germs  moisten food

stomach  kills germs  break up food  digest proteins  store food mouth  break up food  digest starch  kill germs  moisten food pancreas  produces enzymes to digest proteins & starch

pancreas  produces enzymes to digest proteins & starch stomach  kills germs  break up food  digest proteins  store food mouth  break up food  digest starch  kill germs  moisten food liver  produces bile - stored in gall bladder  break up fats bile contains colors from old red blood cells collected in the liver = iron in RBC rusts & makes feces brown bile contains colors from old red blood cells collected in the liver = iron in RBC rusts & makes feces brown

small intestines  breakdown food - proteins - starch - fats  absorb nutrients stomach  kills germs  break up food  digest proteins  store food mouth  break up food  digest starch  kill germs  moisten food pancreas  produces enzymes to digest proteins & starch liver  produces bile - stored in gall bladder  break up fats

stomach  kills germs  break up food  digest proteins  store food mouth  break up food  digest starch  kill germs  moisten food small intestines  breakdown food - proteins - starch - fats  absorb nutrients pancreas  produces enzymes to digest proteins & starch liver  produces bile - stored in gall bladder  break up fats large intestines absorb water

You’ve got company! Living in the large intestine is a community of helpful bacteria – Escherichia coli: E. coli digest cellulose – digests fruits & vegetables produce vitamins – vitamin K & B vitamins BUT also generate gases – by-product of bacterial metabolism – methane, hydrogen sulfide – STINKY! PEE-YOO!

stomach  kills germs  break up food  digest proteins  store food mouth  break up food  digest starch  kill germs  moisten food small intestines  breakdown food - proteins - starch - fats  absorb nutrients liver  produces bile - stored in gall bladder  break up fats large intestines absorb water appendix pancreas  produces enzymes to digest proteins & carbs

Rectum Last section of large intestines – eliminate feces – what’s left over after digestion? undigested materials – mainly cellulose from plants – called roughage or fiber – keeps everything moving & cleans out intestines masses of bacteria So don’t forget to wash your hands!

Need to make sure you get enough protein – 20 amino acids to make protein 12 amino acids humans can produce 8 we have to eat = “essential amino acids” – Grains (like corn) have 6 amino acids missing 2 – Beans (like soybean & red beans) have 6 amino acids missing different 2 mix beans & grains for complete group of amino acids – rice & beans – taco/tortilla & beans – tofu & rice – peanut butter & bread Vegetarian diets

Feedback: Maintaining Homeostasis Balancing glucose levels in blood pancreas insulin liver takes up glucose for storage cells take up glucose from blood liver releases glucose to blood depress appetite stimulate hunger glucagon

Digestion Brochure Choose and research one of the following diseases/disorders: – Ulcers – Scurvy – Rickets – Diarrhea – Constipation – Anemia – Acid Indigestion (heartburn) Create a brochure (like you might see at a doctor’s office) that explains: – what the disease is – how it’s caused – how to treat it – illustrate the part of the digestive system it affects The front cover needs to have a question as a title. For example, if you were researching lactose intolerance, “Why can’t I drink milk?” Given the information about the disorder, YOU have to determine how it could it fixed or treated!

Ulcers Peptic ulcers are holes or breaks in the protective lining of the upper part of the small intestine or the stomach -- areas that come into contact with stomach acids and enzymes Scurvy A disease resulting from a deficiency (lack) of vitamin C (“pirate disease) Rickets A softening of bones in immature mammals due to deficiency or impaired metabolism of vitamin D, phosphorus, or calcium, potentially leading to fractures and deformity. It can also be caused by severe diarrhea and vomiting Diarrhea The condition of having three or more loose or liquid bowel movements per day. The loss of fluids through diarrhea can cause dehydration and electrolyte disturbances such as potassium deficiencies or other salt imbalances Constipation Refers to bowel movements that are infrequent or hard to pass. Constipation is a common cause of painful defecation. Severe constipation includes obstipation (failure to pass stools or gas) and fecal impaction, which can progress to bowel obstruction and become life-threatening. Anemia A decrease in number of red blood cells (RBCs) or less than the normal quantity of hemoglobin in the blood. A deficiency in iron can result in anemia. Acid Indigestion (“Heartburn”) The pain often rises in the chest and may radiate to the neck, throat, or angle of the jaw. Heartburn is usually associated with regurgitation (bringing back up) of gastric acid.