how do we remember all the life processes? h.n.t.r.s.g.e.r.m.r which ones have we covered? ...
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EXCRETION
EXCRETION HOW DO WE REMEMBER ALL THE LIFE
PROCESSES?H.N.T.R.S.G.E.R.M.R
WHICH ONES HAVE WE COVERED?NUTRITION & TRANSPORT & RESPIRATION
WHAT’S NEXT ON THE LIST? WHY ARE WE SKIPPING TO “E”?
EXCRETION
EXCRETION WHAT IS EXCRETION?
DEFINTION THE PROCESS BY WHICH METABOLIC WASTES
ARE REMOVEDWHAT IS A METABOLIC WASTE?
PRODUCTS OF THE LIFE PROCESSES (CHEMICAL REACTIONS) THAT ARE NOT NEEDED BY THE ORGANISM…IF THEY BUILD UP IN CONCETRATION THEY CAN BE TOXIC!!
EXCRETION WHAT ARE EXAMPLES OF METABOLIC
WASTES?IN OTHER WORDS, WHAT ARE PRODUCTS OF REACTIONS IN THE BODY THAT WE DON’T USE??
EXCRETION THE MAJOR METABOLIC WASTES ARE
CARBON DIOXIDEWATERNITROGEN COMPOUNDS (EX. AMMONIA &
UREA) EXCRETION IS THE PROCESS BY WHICH
THESE SUBSTANCES ARE REMOVED FROM THE BODY
HOW IS CARBON DIOXIDE REMOVED?RESPIRATION / GAS EXCHANGESEE THE OVERLAP IN LIFE PROCESSES?
EXCRETION
EXCRETION
BEFORE WE CONTINUE, EVERYONE MUST BE WARNED NOT TO CONFUSE
EXCRETION WITH
ELIMINATION!!!
EXCRETION EXCRETION IN PROTISTS
DO THEY NEED AN EXCRETORY SYSTEM?HOW DO THEY GET RID OF CARBON
DIOXIDE?HOW DO THEY GET RID OF WATER?HOW DO THEY GET RID OF NITROGENOUS
WASTES?
EXCRETION EXCRETION IN HYDRAS?
DO THEY NEED AN EXCRETORY SYSTEM?
EXCRETION EXCRETION IN EARTHWORMS?
DO THEY NEED AN EXCRETORY SYSTEM? HOW DO THEY REMOVE
CARBON DIOXIDE? HOW DO THEY REMOVE
NITROGENOUS WASTE?
EXCRETION EXCRETION IN EARTHWORMS
SPECIAL STRUCTURE CALLED A NEPHRIDIA FILTERS OUT THE NITROGENOUS WASTE FROM
THE BLOOD, THEN SHIPS IT OUT IN THE FORM OF URINE TO TINY “PORES” IN THE SKIN
EXCRETION EXCRETION IN GRASSHOPPERS?
DO THEY NEED AN EXCRETORY SYSTEM? HOW DO THEY REMOVE CARBON DIOXIDE? HOW DO THEY REMOVE NITROGENOUS WASTES?
EXCRETION EXCRETION IN GRASSHOPPERS
MALPIGHIANTUBULESFILTER BLOODAND PASSURIC ACIDTO THE INTESTINETO MIX WITHFECES
EXCRETION EXCRETION IN HUMANS
DO HUMANS NEED AN EXCRETORY SYSTEM? HOW DO THEY REMOVE CARBON DIOXIDE? HOW DO THEY REMOVE NITROGENOUS WASTES?
EXCRETION EXCRETION IN HUMANS
WHERE DO NITROGENOUS WASTES COME FROM?
LIVERDETOXIFICATION
REMOVES HARMFUL SUBSTANCES FROM THE BLOOD
BILE FORMATION EXCESS BILE IS REMOVED IN
FECESUREA FORMATION
RESULTS FROM BREAKDOWNOF AMINO ACIDS
EXCRETION EXCRETION IN HUMANS
WHERE DO NITROGENOUS WASTES COME FROM? BREAKDOWN OF AMINO ACIDS
EXCRETION EXCRETION IN HUMANS
WHEN AMINO ACID IS BROKEN DOWN, AMMONIA (NH3) IS FORMED…BUT THAT IS TOO POISONOUS TO BE TRANSPORTEDIN THE BLOOD, SO IT ISCONVERTED, BY THE LIVER, INTO A DIFFERENTNITROGENOUS COMPOUNDCALLED UREA
UREA IS ABLE TO BE TRANSPORTED IN THE BLOOD, BUT MUST THEN BE FILTERED OUT TO BE EXCRETED!!
EXCRETION EXCRETION IN HUMANS
THE URINARY SYSTEM
EXCRETION EXCRETION IN HUMANS
THE URINARY SYSTEM IS RESPONSIBLE FOR FILTERING UREA OUT OF THE BLOOD FOR IT TO BE EXCRETED
MAJOR STRUCTURES KIDNEY**
FILTER URETER
CONNECTING TUBE BLADDER
URINE STORAGE URETHRA
EXIT TUBE
EXCRETION EXCRETION IN HUMANS
**HOW DO THE KIDNEYS WORK? THEY CONTAIN
MANY, MANY
NEPHRONS
EXCRETION EXCRETION IN HUMANS
NEPHRONS
EXCRETION EXCRETION IN HUMANS
NEPHRON MAJOR STRUCTURES GLOMERULUS
BALL OF CAPILLARIES
BOWMAN’S CAPSULEFILTER
LOOP OF HENLEREABSORPTION
COLLECTING DUCTURINE COLLECTION
EXCRETION EXCRETION IN HUMANS
URINARY SYSTEM REMINDER
EXCRETION EXCRETION IN HUMANS
SOME UREA IS LOST IN SWEAT, ALSO
EXCRETION EXCRETION IN HUMANS
THE SKIN’S SWEAT GLANDS PRODUCES SWEAT WHICH HELPSREMOVE UREA*SWEAT IS 99% H2O
SWEAT ALSO HELPSREMOVE EXCESSHEAT!!
EXCRETION EXCRETION IN HUMANS
EXCRETORY DISORDERS CIRRHOSIS JAUNDICE GOUT KIDNEY STONES KIDNEY FAILURE
EXCRETION WHAT’S NEXT ON OUR LIFE PROCESS
LIST? RESPONSE
YOU NEED TO BE ABLE TO MOVE IN ORDER TO RESPOND…WHICH MEANS YOU NEED…
EXCRETION
SUPPORT AND LOCOMOTION NEXT!!!