Characteristics of Living Characteristics of Living ThingsThingsOrganism = any living thingOrganism = any living thing

-bacteria-bacteria-hippopotamus-hippopotamus-you!!!-you!!!

CREDGREW (CREDGREW (Mnemonic Device)Mnemonic Device)

CCREDGREWREDGREW

C = Cells!!! All living things are made up of C = Cells!!! All living things are made up of cells.cells.

CCREDGREWREDGREW

C = Cells!!! All living things are made up of C = Cells!!! All living things are made up of cells.cells.

• Unicellular = single celled organism

Unicellular organism = single celledUnicellular organism = single celled

CCREDGREWREDGREW

C = Cells!!! All living things are made up of C = Cells!!! All living things are made up of cells.cells.

• Unicellular = single celled organism

• Multicellular = organism with many cells

CCREDGREWREDGREW

C = Cells!!! All living things are made up of C = Cells!!! All living things are made up of cells.cells.

• Unicellular = single celled organism

• Multicellular = organism with many cells

• Prokaryotic = type of cell; very simple; evolved early; no nucleus

Prokaryotic cell = simple cell; no nucleus; evolved Prokaryotic cell = simple cell; no nucleus; evolved firstfirst

Example = Bacterial cell

CCREDGREWREDGREW

C = Cells!!! All living things are made up of C = Cells!!! All living things are made up of cells.cells.

• Unicellular = single celled organism

• Multicellular = organism with many cells

• Prokaryotic = type of cell; very simple; evolved early; no nucleus

• Eukaryotic = type of cell; complex; evolved later; contains nucleus and other organelles

Eukaryotic cell = more complex; evolved later; Eukaryotic cell = more complex; evolved later; contains a nucleus (and many other contains a nucleus (and many other organelles)organelles)

Example = corn cell

CCRREDGREWEDGREW

R = Reproduction; All organisms reproduceR = Reproduction; All organisms reproduce

• Asexual reproduction - one parentAsexual reproduction - one parent• Sexual reproduction - two parentsSexual reproduction - two parents

CRCREEDGREWDGREWE = Energy; All organisms use energy from E = Energy; All organisms use energy from

“food”; this is usually in the form of “food”; this is usually in the form of glucose (a sugar)glucose (a sugar)• Autotroph = an organism that makes it’s Autotroph = an organism that makes it’s

own food using the sun; also known as a own food using the sun; also known as a “producer”; examples are plants and “producer”; examples are plants and algaealgae

• Heterotroph = get food from other Heterotroph = get food from other organisms; also known as a “consumer” organisms; also known as a “consumer”

CRECREDDGREWGREW

D = DNA (Deoxyribonucleic acid); all cells D = DNA (Deoxyribonucleic acid); all cells contain DNA; DNA is the chemical that contain DNA; DNA is the chemical that genes are made ofgenes are made of

Double helix

CREDCREDGGREWREW

D = DNA; all cells contain DNA; DNA is the D = DNA; all cells contain DNA; DNA is the chemical that genes are made ofchemical that genes are made of

G = Grow; all organisms growG = Grow; all organisms grow

CREDGCREDGRREWEW

D = DNA; all cells contain DNA; DNA is the D = DNA; all cells contain DNA; DNA is the chemical that genes are made ofchemical that genes are made of

G = Grow; all organisms growG = Grow; all organisms grow

R = Response; all organisms respond to R = Response; all organisms respond to stimulistimuli

(anything in an organism’s environment that (anything in an organism’s environment that causes it to react)causes it to react)

CREDGRCREDGREEWW

D = DNA; all cells contain DNA; DNA is the D = DNA; all cells contain DNA; DNA is the chemical that genes are made ofchemical that genes are made of

G = Grow; all organisms growG = Grow; all organisms grow

R = Response; all organisms respond to R = Response; all organisms respond to stimulistimuli

E = Exchange; all organisms exchange E = Exchange; all organisms exchange gasses; take in COgasses; take in CO22 and let out O and let out O22

CREDGRECREDGREWW

E = Exchange; all organisms exchange E = Exchange; all organisms exchange gasses; take in COgasses; take in CO22 and let out O and let out O22

W = Waste; all organisms produce wasteW = Waste; all organisms produce waste

• Examples: COExamples: CO22, ammonia, undigested , ammonia, undigested foodfood