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What is Biology?
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Biology
The study of living things
Life Functions
How do we know if something is living?
Metabolism is the sum of all the chemical reactions happening within an organism.
Life functions
Turn to your partner/group and write down what you think biology is.
What is
Biology?
"ology"-
"Bio"-
Life or Living things
The study of...
Biology is the study of life/living things
Regulation
Respiration
The control and coordination of all the life functions occurring within an organism/cell.
Respiration is making energy from sugar molecules and oxygen taken into the body.
nervous system- sends electrochemical impulses throughout the body.
ATP
Makes energy = ______
endocrine system- distributes hormones in the bloodstream throughout the body.
Reproduction
2 Types of respiration:
Characteristics of Life
Aerobic- uses oxygen
Anaerobic - no oxygen
1. All living things are made up of cells.
Making offspring
Synthesis
2. Living things can reproduce.
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2 Types:
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Asexual reproduction
3. Living things grow and develop.
Is the process that combines small or simple substances in to larger, more complex substances.
Sexual Reproduction
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4. Living things are based on a universal genetic code
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5. Living things require energy.
Something that performs all 8 life functions is...
Excretion
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The removal of metabolic wastes.
Metabolic wastes are made by the other life functions.
8 Life Functions
6. Living things respond to their environment.
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7. Living things maintain homeostasis.
Transport
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espiration
The absorption and circulation of molecules within the cell or throughout an organism.
8. Living things adapt or evolve over time.
Growth
egulation
2 Types:
Increase in cell size.
Nutrition
eproduction
Increase in cell number.
Obtaining nutrients and using them for energy, growth and repair.
xcretion
R
R
R
E
G
N
T
S
rowth
utrition
ransport
ynthesis
Homeostasis
"Homeo/Homo"-
The Same
"Stasis"-
State of Stability
aka Dynamic Equilibrium
The ability of an organism to maintain a stable internal environment even when the external environment changes.
Biology
The process of regulating all of the life functions (metabolism) in order to maintain balance.
Homeostasis Examples
Sweating when its hot keeps the body cooler at 98.6 degrees.
Shivering when its cold warms the body up to 98.6