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Liquid Excretion: removal of liquid wastes & water/salt balance Ch 37.3 The Urinary System
Nitrogen wastes are excreted & cycled Nitrogen in Plant & animal protein Ammonia nitrogen Is excreted in urine Bacteria convert Ammonia to usable Nitrate fertilizer
Forms of Nitrogen Wastes Nitrogen form ToxicityEnvironment& removal 1. AmmoniaMostWater by diffusion 2. UreaLessLand @ kidney as urine 3. Uric Acid crystal LeastAir & Deserts as A dry crystal
Protein Building blocks: Amino NH 2 Acid COOH
Nitrogen waste from Protein Breakdown Kidney filters the blood Removes urea waste Recycles food, water & salt Urine = urea waste, water & salt
Bladder stores Urine made by Kidneys Ureter tubes Carries urine to urethra
Nephron: Unit of filtration
Water levels in urine under control of Hypothalamus & ADH hormone
THE EXCRETORY SYSTEM. Function Removes waste products from the blood Cells produce wastes which move out of the cells and into the blood by diffusion.
The Excretory System. STRUCTURES Kidneys – filter blood of wastes Ureter – tube leading to bladder Urinary bladder – smooth muscle bag that stores.
Excretion: removal of cellular wastes (Carbon dioxide, water, salt, nitrogenous wastes)
What is nitrogenous waste and where does it come from? a.ecretes enzyme “amylase” – starts carbohydrate digestion. b. Mucous – lubricates food.
The Human Excretory System The function of the excretory system is to excrete (get rid of) wastes that are not helpful to the body.
EXCRETORY SYSTEM. Excretion Excretion: the process by which metabolic wastes and excess substances are removed from an organism.
What liquid waste do we make? Digesting protein makes poison nitrogen waste = ammonia = poison H CO 2 + H 2 O NH 2 = ammonia H H N C—OH || O H | —C—
Excretory System Swenson Excretion – Removal of nitrogenous waste. What is Nitrogenous waste? Waste from the breakdown of Proteins, and other cellular.
Waste Removal & the Human Urinary System Sections 3.7 – 3.8 Bio 391
Excretory System Excretion – removal of metabolic waste.
The Human Excretory System The function of the excretory system is the excrete (get rid of) wastes that are not helpful to the body.
Urinary System. Why do we urinate? To remove metabolic wastes from body Cells produce wastes that are toxic Nitrogenous wastes are converted to urea by.
Excretory System What Life Process Does the Excretory System Help to Accomplish? What Organs Are Part of the Excretory System?
The Excretory System How Our Body Eliminates Cellular Wastes.
Mrs. Wharton’s Science Class. System of the body that collects wastes produced by cells and removes the wastes from the body. Excretion- what the.
Intro to Excretion. Excretion Excretion –Release and removal of metabolic wastes Metabolic Wastes Excess water Salts Carbon Dioxide Nitrogenous.
Chapter 30.4: Excretory System. Role of the Excretory System -Removes waste from the body -Excretion is the process by which metabolic wastes are eliminated.
Excretion: Disposal of Nitrogenous Wastes ammonia is too toxic to be stored land animals must dispose of Nitrogen in different form: Urea or Uric Acid.
HUMAN ORGANS OF EXCRETION. LUNGS Excrete carbon dioxide and water These are the wastes of cellular respiration.
The Urinary System Chapter Urinary System Function: Helps maintain the homeostasis of body fluids. Structure: –2 kidneys –2 ureters –1 urinary bladder.
AP Biology Excretory System Kidneys and the Urinary System, Lungs, Skin, & Liver (removing metabolic waste)
Chapter 20 Urinary System. Function Waste removal Maintains water and electrolyte balance Regulates pH.
What is Excretion? Excretion is the process of removing cellular wastes. The term excretion refers specifically to the elimination of wastes produced by.
Urinary System Kidneys: removes wastes and regulates blood volume and composition Ureters: tubes that connect the kidneys to the bladder Bladder:
Unit 7: Human Body Systems Part 2. 1. What metabolic processes create wastes? 2. What are the waste products that are created during these processes?
Excretory System. Urinary Tract Diagram Purpose of Excretory System The word excretion means the removal of waste substances from the body. Several organs.
Urinary System: The Excretion of Waste. Kidneys: Structure and Function The urinary system is made up of two kidneys, a pair of ureters, the urinary.
OBJ: Given video, notes, activity sheet SWBAT explain the structures/functions of the Excretory System and how kidneys filter liquid waste with 70% accuracy.
Excretory System Removes cellular wastes from the body.
EXCRETORY SYSTEM. 3 FUNCTIONS OF THE EXCRETORY SYSTEM REMOVES WASTES FROM YOUR BLOOD. MAINTAINS THE pH OF YOUR BLOOD. REGULATES THE AMOUNT OF WATER IN.
Excretory System Honors Biology Powerpoint #5. Excretory System Function: The excretory system eliminates nonsolid wastes from the body. Nonsolid wastes.
EXCRETION. Structure and Function Lesson 1 Do Now Watch the video: Brain Pop - Urinary System and complete the multiple choice worksheetBrain Pop - Urinary.
Excretory System o. Body Functions Remember: Toxins broken down in the liver end up in the blood. The cells receive nutrients form the blood and produce.
Excretory System. Function Removal of waste from blood and lymph to maintain homeostasis –Wastes removed Excess salts Carbon dioxide (CO 2 ) Urea Regulates.
How Our Body Eliminates Cellular Wastes. Excretion When proteins are broken down into amino acids, during digestion, they travel to the liver to be stored.
Excretory System. Urinary Purpose: Rid the body of liquid waste –Urea- waste from break down of body protein ~picked up by blood and taken to kidneys.
Human Excretion. Breathing What do we get rid of with the respiratory system? What do we get rid of with the respiratory system? –CO 2 –H 2 O –Excess.
Excretory System webpages/TErtl/living.cfm?s ubpage=
The Excretory system. Functions of the Excretory System Removal of waste products from the body.
Part 4 The Human Excretory System. The Excretory systems maintain homeostasis with respect to water, salt and metabolite concentrations within the blood.
3 functions of the urinary system Excrete nitrogenous wastes – Urea produced from the metabolism of proteins and nucleic acids Other animals produce ammonia.
EXCRETION. Do Now - Give as many examples of EXCRETION as you can. And it’s not this.
Excretory System. This system removes wastes from the body. Some animals remove excess water, salt, and other waste through their skin in the form of.
Excretory System. What does the blood carry away from body cells? 1. Oxygen & waste 2. Carbon dioxide & waste 3. Carbon dioxide & nutrients 4. Oxygen.
Bellwork – 4/7/15 Which organs are included in the human excretory system? List as many organs as you can… –Lungs –Kidneys –Liver –Skin –Large Intestine.
The Excretory System collecting and removing wastes in the body.
EXCRETORY SYSTEM EXCRETORY SYSTEM Karen Lancour Patty Palmietto National Bio Rules National Event Committee Chairman Supervisor – A&P.
Urinary System Water control and nitrogen disposal.
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