-Characteristics of Living Organisms-	- Movement - Growth - Sensitivity - Respiration - Nutrition - Excretion - Reproduction
Movement	Change of position of an organism or part of it.
Growth	Increase in size by an increase in cell number or cell size (or both).
Sensitivity	Detect or sense stimuli in the internal or external environment and make appropriate responses.
Respiration	Chemical reactions in cells break down molecules and release energy for metabolism.
Nutrition	Consuming materials for energy, growth and development.
Excretion	Removal of waste products.
Reproduction	The process of make more of the same kind of organism.
Technics to study the structure of living organisms	-DNA -Anatomy (Within the body) -Morphology (Shape of the body)
SPECIES	Group of organisms that have similar appearance/ behaviour and can reproduce and produce offsprings.
GENUS	A genus contains several species with similar characteristics.
Classification in order	Kingdom Phylum Class Order Family Genus Species
Naming system	(Binomial system) First name: Genus (Has capital letter) Second name: Species (Small letters)
-The 6 Kingdoms of Life-	-Plants -Animals -Protists -Fungi -Monera (Archaebacteria & Eubacteria)
Animals	- Multicellular - Animal cells - Feed on organic substances
Plants	- Multicellular - Plant cells - Feed by photosynthesis - May have roots, stems, leaves and flowers. - Green color (Chlorophyll)
Fungi	- Unicellular or Multicellular - Cells have nuclei, cell walls (not made of cellulose) and do not have Chlorophyll. - Feed by saprophytic or parasitic nutrition. Two parts: Reproductive structure and Hyphae.
Protists	- Unicellular or Multicellular - Cells have nuclei, may or may not have cell walls and chloroplasts. - Some feed by photosynthesis and some by organic matter.
Monera	(Archaebacteria or Eubacteria) - Often unicellular - Cells have no nuclei. Have cell wall (not made of cellulose). - Some use photosynthesis (but no chloroplasts) - No Mitochondria.
DIFFUSION	Organisms obtain and get rid of things through Diffusion. Is the process of movement of molecules from a region of higher concentration to a lower one.
OSMOSIS	As there is more water in places where there is less solute, and vice versa, separated by a membrane. Osmos is the process where water diffuses from the places with higher water concentration to the lower one, where there is more solute.
Three types of water concentration situations.	- Isotonic solution: Equal concentration outside and inside. - Hipotonic solution: More water outside the cell. - Hypertonic solution: More water inside the cell.
ACTIVE TRANSPORT	The movement of molecules through the cell against their concentration gradient bu using energy.

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Biology 2 - 2017

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