The relative concentration of the substance in different areas determines the direction of diffusion
Diffusion is driven by kinetic energy of the molecules
The sugar residues of the glycocalyx provide recognizable biological markers for the cells to recognize each other
The heart has desmasomes that secure cardiac cells together
Diffusion is driven by kinetic energy of the molecules
Junction occures from regions of high concentration to regions of low concentration
Meditated diffusion the difusing substance attatches to a membrane (protien) carrier that moves it across the membrane
The heart has desmasomes (anchoring junctions) that secure cardiac cells together as the heart works and gap junctions (communicating junctions) that allow ions to flow from cardiac cell to cardiac cell
Diffusion is driven by kinetic energy of the molecules
Diffusion is slowed by kinetic energy of the molecules
Diffusion is hydrolized by kinetic energy of the molecules
Diffusion is synthesized by kinetic energy of the molecules
Ionic and covalent bonding
The channel
In carrier
Open and closed gateways
The relative concentration of the substance in different areas determines the direction of diffusion
Diffusion happens when the solute has a low water concentration
Diffusion occurs while you are sleeping
Diffusion occurs from regions of high concentration to regions of low concentration
Phosphorylation of the Na+ -K+ pump causes the pump protein to denature therefore it closes the pump and allows energy to be recycled
Cholesterol is taken in by receptor-mediated endocytosis
Diffusion of ions, mainly the diffusion of K+ from the cell through leakage channels, establishes the resting membrane potential
Phosphorylation of the Na+ -k+ pump causes the pump protein to change shape so that it "pumps" Na+ across the membrane. K+ binding to the pump protein triggers the release of phosphate and the pump protein returns to its original shape
Cholesterol is taken in by receptor-mediated endocytosis
Diffusion of ions, maily the diffusion of K+ from the cell through leakage channels, establishes the resting membrane potential
The plasma membrane expands as a result of exocytosis
Phagocity cells engulfing debris
Liglands
The plasma membrane expands as a result of exocytosis
Cholesterol is taken in by receptor-mediated endycytosis
The nucleoli
Liglands
R protien
G protien
Metabolism
Rough er
Bibosome
Gogli aparatus
All of the above
Only two of these, one is missing
They maintain cell shape
They are involved in organelle movements with in the cell and/or movements of the cell as a whole
They increase the cells surface area for absorption
They both vacation in Hawaii annually
Microtubles
Microfilaments
Intermediate filaments
None of them are more important than the other two.
It free floats through the body
It is doomed to die
It will be unable to make proteins
It will remain inactive until a protein picks it up and moves it to the right location
They provide the means to pack DNA in a compact orderly way
Regulation and balance
Nuceoli are the site of synthesis of ribosomal subunits
Growth
Nucleoli disappear
Spindle forms
Coil forms
Nuclear envelop breaks up
S Phase
G Phase
G2 Phase
S2 Phase
TTACGG
AATGCG
GCTTAC
None of these
They give coded instructions for protein synthesis
They make an entry site for TRNA at the ribosmoe
Provide the means to pack DNA in a compact orderly way
Play a role in gene regulation
It attatches to misfolded, damaged or unneeded proteins tagging them for destruction
DNA provides the coded instructions (is the template) for protein synthesis. Via the mRNA synthesized on it
It tranesports nutrients, gasses, horomones and other substances through out the body
It is a process of programed cell death
Blood plasma
Intersigital fluid
Ubiquiting
Apoptosis
It is a process of programed cell death
It includes structures and functions common to all cells
It attaches to miss-folded damaged, or unneeded proteins, tagging them for destruction by proteasomes.
It provides the coded instructions (is the template) for protein synthesis
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