DIGESTION HOW YOUR BODY USESFOOD!. DIGESTION The process of breaking down food into usable nutrients. Takes place in digestion system The digestive tract.

Slides:



Advertisements
Similar presentations
HOW WE USE NUTRIENTS The Digestive System.
Advertisements

The digestive system is
Digestive System.
Digestive System.
Warm Up: If a solution has a pH of 4 it is_________
Lifetime Nutrition and Wellness TEKS: 2ABC
Education Phase 3 Digestion. Food as a fuel The body requires energy from food. Our bodies act as a converter, releasing energy and nutrients from food.
The Digestive System. How is food digested? Digestion involves: Breaking down of food into smaller pieces Breaking down of food into smaller pieces The.
The Digestive System.
Digestive System: pp Pre-Movie: Major structures: Mouth Throat
The Digestive System.
Digestive System: From Mouth to Anus
The Digestive System Part 1. How is Food Digested? O Digestion involves: O Breaking down of food into smaller pieces O The mixing of food O Movement through.
 Your cells need a lot of energy for daily activities.  Cells use nutrients, which are substances in food, for energy, growth, maintenance, and repair.
The Digestive System. How is food digested? Digestion involves: Breaking down of food into smaller pieces Breaking down of food into smaller pieces The.
L/O/G/O Diges tion & Metab olism Part 1 : The Digestive System.
Digestive System.
The Digestive System.  Digestion  The process by which the digestive system breaks down food into molecules that the body can use.  2 types of digestion.
Warm Up Get a Digestion and Metabolism Fill in from the front counter What is Digestion? TODAY: –Digestion PPT/ Fill In Notes –Begin Posters.
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.
The Digestive System. How is food digested? Digestion involves: Breaking down of food into smaller pieces Breaking down of food into smaller pieces The.
The Digestive System. How is food digested? Digestion involves: Breaking down of food into smaller pieces Breaking down of food into smaller pieces The.
DIGESTIVE SYSTEM.
1. stages in food processing 1.ingestion 2.digestion 3.absorption 4.elimination 2. digestion - the process that breaks down food into small molecules.
2.2 THE DIGESTIVE SYSTEM.
Block 2 Notes Digestive System.
Components Esophagus Stomach Small Intestine Large Intestine
Breaks down food into nutrients.
Digestion Intro and Vocab
- breaks down food into molecules the body can use, getting rid of undigested molecules htm
The Digestive System You are what you eat!. What is the function of the digestive system? The digestive system has three main functions: 1. It breaks.
NUTRIENTS AT WORK Chapter 5. Objective ◦ Explain the impact of nutrients on your body and health. ◦ Describe standards and guidelines that provide information.
How Do Body Cells Get Energy From Food?
- breaks down food into molecules the body can use, getting rid of undigested molecules htm
Isaac Han (8) Koh Huai Ze (10) Liu Shuyang (14) Ng Wei Kai (16)
The Digestive System. The Digestive System and Body Metabolism Slide 14.1 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Digestion.
Your Digestive System The main role of the digestive system is to break down and absorb nutrients that are necessary for growth and maintenance.
Lesson 2: The Human Alimentary Canal The Human Alimentary Canal … includes the entire tube from the mouth all the way to the anus.
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.
Digestive System at a Glance Your digestive system is a group of organs that break down food so that it can be used by the body.
Digestive System. Primary Function of Digestive System  Used to breakdown the food.  The body absorbs the nutrients and uses it for energy.
The Digestive System Chapter 3 Section 1. Digestive System Organs that break down food so it can be used by the body. Food passes through a long tube.
The Digestive System.
The Digestive System. Digestion  Digestion: is the process of breaking down food into molecules the body can use, the absorption of nutrients, & the.
How your Body uses Food Unit 1 Nutrition 101. Digestion  The process of breaking down food into usable nutrients.  It takes place in the digestive system,
Digestive System.
I. Digestive System. A. Digestive tract 1. Mouth-->Esophagus-->Stomach-- >Small Intestine-->Large Intestine-- >Anus 2. The liver and pancreas aid in digestion.
Digestive System Digestion- breaking down of food into smaller pieces to make usable energy for the body.
THE DIGESTIVE SYSTEM A.K.A. THE GASTROINTESTINAL (GI) TRACT Converts foods into simpler molecules, then absorbs them into the blood stream for use by.
Your Digestive System The main role of the digestive system is to break down and absorb nutrients that are necessary for growth and maintenance.
Breaks down food into nutrients.
The Digestive System.
Lesson 1: The digestive system
The Digestive System.
DIGESTIVE SYSTEM.
The Digestive System Chapter 3 Section 1.
Digestion and Excretion
Digestive System Parts and Function
Digestive System.
Starring: Esther Esophagus with Sammy Stomach
Do Now: Why do you think the food you eat must be broken down into subunits? Aim: The Digestive System and how does it help keep homeostasis in the body?
THE DIGESTIVE SYSTEM.
The Digestive System.
The Digestive System.
Your Digestive System Objectives
Digestive System Parts and Function
Digestion.
The Digestive System Ch. 15 Sect. 2
The Digestive System.
Presentation transcript:

DIGESTION HOW YOUR BODY USESFOOD!

DIGESTION The process of breaking down food into usable nutrients. Takes place in digestion system The digestive tract begins at the mouth and continues through the esophagus and intestines to the anus. Along this course food is broken down and nutrients are extracted, while waste materials are released.

DIGESTION As soon as food is ingested, food embarks on a journey which can take up to 24 hours. It covers a distance of 30 feet (9m), through various muscular tubes and chambers. It usually takes the average person 4-8 hours to excrete waste

DIGESTION

MORE SPECIFICALLY: THE DIGESTIVE SYSTEM

DIGESTION THE CYCLE START ---  Mouth ---  throat ( pharynx ) ---  travels through the food tube (esophagus) ---  stomach ---  small intestine ---  large intestine ---  anus… END In the small intestine, chemical digestion breaks down food into molecules small enough to be absorbed by the blood stream. The large intestine, is where food that cannot be digested is stored as feces and then is eliminated through the anus.

DIGESTION LABEL THE DIAGRAM

THE DIGESTIVE ORGANS MOUTH -saliva is the first of many digestive juices that act on food breakdown -teeth grind into pieces -chewing food well is important -chew solid food so that it reaches the consistency of applesauce. mouth

THE DIGESTIVE ORGANS ESOPHAGUS -tube connecting mouth to stomach -once food swallowed, it passes into esophagus -tube contracts and relaxes, creates wave like movements that force food into stomach Esophagus

THE DIGESTIVE ORGANS LIVER - large organ that processes absorbed nutrients, detoxifies harmful substances, and produces bile- is a bitter yellowish, blue and green fluid secreted by the liver. It is required for digestion, specifically fat. LIVER

THE DIGESTIVE ORGANS STOMACH - j-shaped muscular bag that churns, digests, and stores food. -can hold 1 L of food (4C) -stomach manufactures gastric juices-food breakdown -churned until food turns into a thick liquid called chyme -carbs=2-3 hours -proteins=3-5 hours -fats=7 hours STOMACH

THE DIGESTIVE ORGANS GALLBLADDER -stores bile produces by liver. GALLBLADDER

THE DIGESTIVE ORGANS PANCREAS -secretes digestive enzymes, which pour along a duct into first part of small intestine. -Enzymes are the “workers” of the body, they do all the “work” in the body and cells. PANCREAS

THE DIGESTIVE ORGANS SMALL INTESTINE -the major site of digestion and absorption of nutrients. -chyme is released into small intestine -chyme acts on 3 digestive juices SMALL INTESTINE

BILE- helps your body digest and absorb fats. Produced in liver, stored in gallbladder. PANCREATIC JUICE-contains enzymes that help break down carbs, proteins and fats. Produced by pancreas INTESTINAL JUICE- works with other juices to break down food. Produced in small intestine

SMALL INTESTINE When fully broken down, carbohydrates are converted to a simple sugar called glucose. This is the body’s basic fuel supply Fats are changed into fatty acids If too many fats are eaten, the body stores the extra fat This can result in weight gain/insulation for the body Proteins are broken down to amino acids Vitamins, minerals and water do not need break down, they are ready for action.

THE DIGESTIVE ORGANS LARGE INTESTINE -Absorbs water from food residue, and forms and stores feces. LARGE INTESTINE

THE DIGESTIVE ORGANS RECTUM - stores waste matter until it can be excreted conveniently. RECTUM

USING NUTRIENTS Once food is broken down into nutrients, digestion is complete Your body still must absorb the nutrients and take them to where they can be used or stored

ABSORPTION After digestion, nutrients are absorbed in blood stream. Most absorption takes place in small intestine Some waste mineral, including fiber, is left in small intestine-where its transferred to large intestine (colon). Colon removes water, potassium and sodium from waste. The rest is stored there until eliminated.

PROCESSING AND STORING NUTRIENTS After nutrients are absorbed by the small intestine, they are carried through a blood vessel, to the liver. Liver turns nutrients into forms the body can use For example: amino acids proteins, which are then carried into the blood whenever needed

PROCESSING AND STORING NUTRIENTS If not needed immediately, nutrients are stored for future use. For example, extra glucose is converted by the liver into glycogen, which is stored in the liver and muscles. If storage is maxed out, remaining glycogen is converted into body fat Also, extra fatty acids and amino acids are converted into fats.

HOW OUR BODIES USE ENERGY? Automatic processes- breathing, digesting food, creating new cells, resting, sleeping etc Used minimum amounts of energy basal metabolism Physical activities- work and exercise. The more active you are, the more energy you use.

HOW OUR BODIES USE ENERGY? 2/3 of calories used by the body are for basal metabolism This varies-depends on age, body size, body composition There are a few foods that the body has a hard time digesting– for good and bad reasons– take a look!

TOUGH FOOD TO DIGEST (TOP 10) 10. Sugar-free gum

TOUGH FOOD TO DIGEST (TOP 10) 9. Beans -but keeps you full longer!

TOUGH FOOD TO DIGEST (TOP 10) 8.Broccoli and raw cabbage (fiber and nutrient filled veggies)

TOUGH FOOD TO DIGEST (TOP 10) 7.Ice cream -your body doesn’t know what to take from this to use…it leaves your body guessing!

TOUGH FOOD TO DIGEST (TOP 10) 6.Raw Onion- (garlic, leeks and shallots)

TOUGH FOOD TO DIGEST (TOP 10) 5.Mashed Potatoes

TOUGH FOOD TO DIGEST (TOP 10) 4.Citrus juices

TOUGH FOOD TO DIGEST (TOP 10) 3.Chocolate

TOUGH FOOD TO DIGEST (TOP 10) 2.Spicy Food

TOUGH FOOD TO DIGEST (TOP 10) 1. Fried Chicken Nuggets