-
carbohydrates
- monomer---(dehydration synthesis)---->polymer
- (monosacharide)-simple sugar
-
3 major complex carbohydrates
- 1.) starch- derived from plants(short to medium use of energy)
- 2.)glycogen-in liver(short burst)
- 3.) cellulose- plant walls- hard to break down
-
Lipids
- fats, oil
- monomer--------(dehydration synthesis)-->polymer(fattyacid)
- (fatty acid)
-
phospholipid
our plasma cell membrane
-
hydrophobic
fear of water
-
hydrophilic
love of water
-
Proteins
monomer(amino acid)--------dehydration synthesis---->polymer(peptide bond)
-
primary structure
order of amino acids
-
secondary structure
weak hydrogen bonds, b pleated sheets or alpha helix
-
tertiary structure
3-D shape, what makes for all of activity(blob/folding)
-
quadary structure
3d shape that folds and connects like a lock-key
-
Nucleaic Acids
- DNA, RNA, ATP
- mononmer(nucleotide)----dehydration synthesis-->polymer(nucleic acid)
-
Nucleotide
(monomer)
- 1.) sugar
- 2.) N-containing bases
- 3.) phosphate group
-
ATP
tri-phosphate-->energy carrier in cell(like elecricity)
sugar-->fat-->stored as ATP(currency)
-
DNA and RNA
- -covalent bond between sugar and phosphate
- -contain lots of nucleotides
- -RNA-has back bone of sugar phosphate
-
Protists
single cell organisms
-
All cells have
- -plasma membrane-selectively permeable
- -cytoplasm
- -storage for DNA
-
phospholipid bilayer
will have 2 laters that natually curves into spheres
-
Plasma membrane
- -selectively permeable(determines what is allowed in and out)
- -->structure of phospholipid bilayer
-
Functions of plasma membrane
protien
- 1.) transport proteins
- 2.) enymes(speed up chemical reactions)
- 3.) adhesion proteins (help cells stick together)
- 4.) recognition proteins (carbohydrates)(defense will attack cells that are non-self[antibodies]
- 5.) receptor protein--bond to some chemical-->sends signals(to change behavior)
-
Surface area to volume ratio
as cells get larger, surface area increases. As it gets larger teh ratio becomes more equivelent
-
Cell Theory
- 1.) All living organisms consist of cells
- 2.) A cell is teh smallest unit of life
- 3.) Every living cell came from division of pre-exsisting cells
- 4.) Cells contain DNA that they pass to pthers
-
Bacteria
are teh samlles and simpliest cells
-
Prokaryotic
- -no nucleus or mebrane bound organeles
- -cell wal-not made of cellulose, but peptidoglycan
- -cytoplasm-->metabolism=sum of all chemical reactions in the cell---ribosomes-->make proteins ---
DNA-->in nucleid region
- flagellum-->used for movement
- pilus-->anchoring bacterium(to another substance)
-
metabolism
sum of all chemical reactions in the cells
-
Domain Bacteria
- -Cyanobacteria-->can to photosynthesis
- -bacteria that make you sick and help you
- -biolfims--> community of microrganisms living in a sharded mass of slime(chemicals)(protections)>>>toxin, waste product, stick(veggies)
-
Domain Archea
-live in extreme enviroment...extremophiles
-
Eukaryotic cells
domain Eukara
- -membrane(phospholipid bilayers)..bound organelles
- -nucleus=bounded by nuclear membrane
- --->DNA - linear(long straight line) chromatic
- ---->nucleolus-makes ribosomes
-
Eukaryotic cells
Endomembrane system
- maze of system, membrane bound organells
- -->endoplasmic reteculem(ER)
- rough(RER) ribosomes(rough bumps)
- smooth SER
-
Eukaryotic cells
- -golgi body/apparatus-->packaging proteins for export(shipping department)
- -vacuole/vessicle-->storage, digestion(food,pigment, enzymes)
-
Diffusion
movement of molecules form high to low concentration until equally distributed(across a plama membrane)
-
consentration gradient
difference in concentration(on two side of membrane)
-
Rate of Diffusion depends on
- 1.) concentration gradient(larger c.g. rate is higher)
- 2.) size(smaller molecules moves faster
- 3.) tempature(higher temp the rate increases)
- 4.) charge
- 5.) pressure(increase pressure increase rate)
-
osmosis
water moves from an area of high H20 concentration to low water concentraton until it is equally distributed(usually across a semi permeable membrane)
-
turgor
pressure that a fluid exerts against a wall or membrane
-
tonicity
how to describe concentration of solutes
-
isotonic
solution has same concentration on both sides of membrane
-
hypotonic
lower concentration of solute (to the one in comparison)(higher concentration of water)
-
hypertonic
solution has higher solute concentration(lower H20 concentration)
|
|