Please enable JavaScript.
Coggle requires JavaScript to display documents.
chapters 6-7 (Components function (Nuclues- Houses chromosomes, which are…
chapters 6-7
Components function
Nuclues- Houses chromosomes, which are made of chromatin, contains nucleoli, ribosomal subunits are made.
-
Smooth ER- synthesis of lipids, metabolism of carbs
Rough ER- aids in synthesis of secretory and other proteins on bound ribosomes, makes gycoproteins, and produces new membrane
Golgi apparatus- modification of proteins, Carbs on proteins, and phospholipids.
Lysosome- Breakdown of ingested substances, cell macro molecules, and damaged organelles for recycling
Vacuole- digestion, storage, waste disposal, water balance, cell growth,and protection
-
-
peroxisome- contains enzymes that transfer H atoms from substrates to oxygen producing H2O2 which is converted to H2O
Cells structure
Nucleus- Surrounded by nuclear envelope(double membrane) perforated bu nuclear pores, nuclear envelope continuous with the ER
Ribosome- Two sub units made of ribosomal RNA's and proteins, can be free in cytosol or bound to ER
Endoplasmic reticulum (ER)- extensive network of membrane bounded tubules and sacs, membrane separates lumen from crystol, continuous with nuclear envelope
Golgi apparatus- stacks of flattend membranous sacs, has polarity (cis and trans faces)
-
-
Mitochondrion- bounded by double membrane, inner membrane has infoldings
Chloroplast - typically two membranes around fluid stroma, which contains thylakiods stacked into grana
-
Micro scopes/ cell types
-
-
-
cell fractionation- takes a cell apart and separates major organelles and other sub cellular structures from one another
-
-
Prokaryotic vs. Eukaryotic- Both have DNA except Prokaryotic lacks a true nucleus and other membrane bound organelles.
Cell membrane
-
membrane structure
-
Phospolipids and some proteins move sideways within the membrane. The unsaturated hydrocarbon tails keeps membrane fluid at lower temps. Cholesterol helps resist change in fluidity.
passive transport
-
-
-
-
-
facilitated diffusion- transport protein speeds up the movement of water or solvent across a membrane.
Active Transport
Co transport- membrane proteins enables the "downhill" diffusion of one solute to drive the "uphill" transport of the other
-
-