life functions
DESCRIPTION
LIFE FUNCTIONS. MR STRANGER. Meet Mr. Stranger! You will learn the 10 life functions and their definitions. Life Functions. Life functions are needed to keep a stable or constant environment with in a living thing. . Metabolism. All of the chemical activities happening in your body. - PowerPoint PPT PresentationTRANSCRIPT
LIFE FUNCTIONS
• Meet Mr. Stranger!• You will learn the 10 life
functions and their definitions.
Life FunctionsLife functions are needed to keep a
stable or constant environment with in a living thing.
Metabolism• All of the chemical activities
happening in your body.
NutritionObtaining
raw materials
for….
Heterotrophic Autotrophic
• Ingestion =eat• Digestion =break down
• Egestion =GET RID OF Feces(POOP)
2 Types
Photosynthesis
SUN FOOD
DIGESTION
Respiration
• Turning food into energy
Respiration: releases the chemical energy stored in nutrients.
Growth• To get larger (using raw materials to make a larger body).
Synthesis• Turning the raw materials from your food into needed
materials.– Simple substances are combined To form complex substance
This is Synthesis
Absorption• Incorporating the materials from your
food into your body parts (in order to grow or heal).
Transport• Moving and
distributing materials throughout the body.
Reproduction• Making more of your own
species.
Excretion• Expelling toxic wastes from the body.
CO2, URINE, SWEAT
Carbon Dioxide
Urea
Regulation
Time
Body
Tem
pera
ture
• Maintaining Homeostasis • An Internal Balance
– .
37
Danger Zone
Danger Zone
Time
TEM
PERA
TURE
Which Life Function Is It?
Transport RegulationExcretion
Nutrition
Excretion
Reproduction
SynthesisAssimilation
Nutrition
The body temperature of a runner increases. The runner responds by perspiring, which lowers body temperature. This process is an example of….
1. maintenance of homeostasis 2. transport3. locomotion4. reproduction
If a human system fails to function properly, what is the most likely result?
1. a stable rate of metabolism 2. a disturbance in homeostasis 3. a change in the method of respiration 4. a change in the DNA
Which life process is classified as autotrophic in some organisms and heterotrophic in other organisms?
1. hormonal regulation 2. nutrition 3. anaerobic respiration 4. transport
When an individual goes without eating for a day, his or her blood sugar level remains about the same throughout the day. This relatively constant condition is maintained by……
1. regulation2. egestion 3. reproduction 4. growth of cells
Describe the difference:
• Sexual and Asexual
• Autotrophic and Heterotrophic