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The Digestive and Excretory Systems

Topic Review on "Title":

The body needs proteins, carbohydrates, fats, vitamins and minerals.  Vitamins are organic molecules that are needed for chemical reactions.  the body cannot produce on its own and must derive it from food.  Minerals are inorganic molecules that are needed for many body structures, and also must be taken from food.

The Digestive System
The digestive system is an organ system for the uptake, digestion, and absorption of food.  The mouth and trachea are for uptake.  The stomach is for storage and digestion.  The small intestines are for absorption of nutrients into the blood, and are folded to increase surface area. The large intestines are for absorption of water to concentrate waste.  The rectum is for excretion of waste.

The Excretory System
The excretory system is for removing waste from the body.  The kidneys filter the blood to decide what the body needs or has too much of.  The ureter and bladder are for storage of waste to be excreted as urine. 

Rapid Study Kit for "Title":
Flash Movie Flash Game Flash Card
Core Concept Tutorial Problem Solving Drill Review Cheat Sheet

"Title" Tutorial Summary :

The digestive system's organs are specialized for food uptake to gain nutrients to deliver to the blood which will deliver it to the body's cells to produce energy.  The excretory system are organs specialized for removal of waste.

Tutorial Features:
  • Concept map of the organs of the digestive and excretory systems
  • A colorful annotated chart of the necessary body nutrients.
  • Labeled diagram of the heart
  • Diagram of kidney functions

"Title" Topic List:


  • Life Requirements
  • Definition

Digestive System

  • Overview
  • Food Processing
  • Organs of the Digestive System

Excretory System

  • Overview
  • Skin & Lungs
  • Liver
  • Kidneys
  • Kidney Functions

See all 24 lessons in high school biology, including concept tutorials, problem drills and cheat sheets:  Teach Yourself High School Biology Visually in 24 Hours

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