The right answer is: voltage-gated channels
Ionic channels are membrane proteins that allow the selective passage of the cell membrane by ions (Na +, Ca2 +, K +, Cl-, ...) following the electrochemical gradients. They play a vital role in cellular excitability, triggering and propagation of action potential. They intervene in the coupling excitation-contraction and excitation-secretion. Ion channel selectivity is based on the adequacy of ion size and charges with the structure and amino acid sequence of the channels.
Among these channels, there are voltage-gated channels.
These are ion channels whose opening is activated by the membrane potential.
These dependent volumetric channels are characterized:
- by the selectivity of the ions (Ca2 +, Na +, K +, Cl-, ...)
- by their conductance
- by their activation domain (significant depolarization to low)
- by their kinetics of inactivation (slow, fast or transient)
The inducer deactivates the repressor protein. This allows
the gene which the repressor protein suppresses, to be actively transcribed.
When the inducer fits in its allosteric site on the repressor protein, the repressor changes conformation and is not able
to bind the operator site of the operon.
Answer:
Phenotype.
Explanation:
Genotype may be defined as the genetic constituent of the organism. Phenotype is the physical appearance of the organism that can be modified by the organism's genotype.
The tall pea plant (TT) and (Tt) constitute the same phenotype as both the genotypes are responsible for the appearance of the tall height of the plants. The phenotype of the plant is controlled by its genotype.
Thus, the correct answer is option (B).
Answer:
Because ovalbumin is <u>denaturated</u>.
Explanation:
When a protein is heated, <u>denaturation</u> occurs. This is a process in which the protein loses its conformation and structure, so we can observe changes in color and viscosity. Before heating, egg white is clear, traslucent and runny. When heated, it turned opaque, in a solid state. This changes indicate that the protein ovalbumin has been denaturated, so it changes its structure and properties.
ANSWERS:
woop the first thing that popped in my head when i saw "alzheimers" is memory loss.
not knowing what your going to say even tho you began a sentence.
cant figure out a specific word and so you just make it up or say sth similiar to it but sounds not exactly it (confusing XD)
is not able to do any more chores or work or fails to do it (in general), prob might be from not focusing on what their doing.
is angry most of the time or gets angry for no reason
those are just a few i know XD
~batmans wife
