6 characteristics required for all living things: cells dna energy grow reproduce respond
DESCRIPTION
CELL THEORY All cells come from cells. Cells are the basic unit of all living things. All living things are made of cells.TRANSCRIPT
6 CHARACTERISTICS• Required for all living things:• Cells• DNA• Energy• Grow• Reproduce• Respond
CELL THEORY• All cells come from cells.• Cells are the basic unit
of all living things.• All living things are made of cells.
CELLS• Cells are individual units (smallest
living unit) surrounded by a membrane.
• Specialized for the job it has. • Cells work together to make up
organisms (you).
DNAOur genetic code/Blueprints for life.
In ALL Cells.Specific match-up
of 4 bases:G = CA = T
DNA• CHROMATIN
– Long strands of DNAie: spaghetti
• CHROMOSOME– Condensed DNA
ie: macaroni
-anyone hungry?
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
PROKARYOTIC• BACTERIA cell• Single-celled
organisms• Reproduces
asexually.• Can be +, -,
or neutral.Usually spheres,
rods or spirals.
BACTERIAEUBACTERIA-most common-many varieties
ie: yogurt, cheese
ARCHAEBACTERIA
-rare, lives where nothing else can
ie: salt flats, depths of ocean, old faithful
TYPES OF CELLSPROKARYOTICPROKARYOTIC-no membrane-
covered organelles.(DNA &
ribosomes.)ie: bacteria
EUKARYOTICEUKARYOTIC-has membrane-
covered organelles.
ie: plant & animal
EUKARYOTIC CELLS• Cells that have
many parts
inside to carry out different jobs.
• Usually in multi-celled organisms.
COMPARE
COMPARE AGAIN
CELL PARTS
-Separates from environment. -Allows certain things through.
• Jell-substance between membrane & nucleus.
• Cushions organelles.
ORGANELLES..?• Organelles are parts of the cell that
have special jobs to do within the cell.-similar to jobs that people have to run a city.
• Organelles look different because of their specific job.
LET’S GET STARTED…NUCLEUS-Boss; directs all
w/in the cell.-holds DNA.-has nucleolus
(mini-me) that makes ribosomes.
RIBOSOMES• Small & many.• Non-membrane
organelles.• Make proteins.• Made inside of
nucleus.• Pro & Euk cells.
E.R.• ENDOPLASMIC RETICULUM • Internal delivery system.• Tubes & passageways to deliver
materials throughout the cell.• SMOOTH- deliver lipids• ROUGH- deliver proteins
E.R.
MITOCHONDRIA -Powerhouse;
creates energy for cell.
-double-membrane for surface area.
GOLGI BODIES• External
delivery service.• Package &
deliver outside of cell.
• VESICLES- pinched off package.
VACUOLE• STORAGE
UNIT• 1 large in plants• Few small in
some animal cells.
REVIEW COMMON PARTS• Cell membrane-barrier• Nucleus- boss• Ribosomes- producer• E.R.- Internal delivery• Golgi Bodies- External delivery• Mitochondria- powerhouse.• Vacuole- storage.
PLANT CELL ONLY
CHLOROPLAST- creates food for cell.–Double-membrane for surface area.
PLANT CELL ONLYCELL WALL-
-gives structure & support.-nonliving-made of cellulose.
ANIMAL CELL ONLYLYSOSOME- clean up crew–Gets rid of waste
& dead parts.–Enzyme to break
down particles.