Answer C, I think. Hope to help :)
The given question is incomplete as the group of choices are missing, however, the group of choices are given as follows:
Select one
a. Protein consists partially of amine groups that are neutral as a result of protonation (of one H ion)
b.Protein contains deprotonated carboxylate groups, resulting in a negative charge
c. The carboxylate groups in protein act very much like carboxylic acid groups (-COOH), except that they are deprotonated
d. If the human body did not act like a buffer solution, each time you ingested an acid the carboxylate groups would protonate, causing the protein structure to disintegrate.
Answer:
The correct answer (incorrect statement) is : option C.
Explanation:
pH of blood should be remain 7.5 in order to make proteins of the body and blood intact and functional. Human protein have neutral amine group due to the protonation and negative carboxylate group due to the deprotonation.
carboxyl group behave like an acid and carboxylate group behave like a base due to the fact that Carboxylate group (-COO-) is conjugate base of Carboxyl group. Human body acts like buffer to prevent the protein from disintegrate.
Thus, the correct answer is : option c.
The role is speeding up chemical reactions
Answer:
Dissociative Disorder
Explanation:
Dissociative Disorder, also known as conversion disorder, is a mental disorder in which the person suffers from a psychological imbalance, with alterations in consciousness, memory, identity, emotion, perception of the environment, movement control and behavior. A common symptom of this disorder is the non-recognition of family members, as well as a loss of memory of things that were done on a daily basis.
Miguel is showing this kind of symptom so there is a chance that he is suffering from dissociative disorder.
Answer:
E) Improve membrane fluidity
Explanation:
Cholesterol constitutes the basic structural element of the skeleton of cell membranes. Without their reinforcement, the membranes would become extremely fluid and lose their consistency. Cholesterol is found in the esterified membranes in its hydroxyl group (OH): with fatty acids, mainly oleic and linoleic, or as cholesterol sulfate. The cholesterol-sulfate polar group is disposed on one of the faces of the membrane that interacts with other polar groups in that area, while its bulky hydrophobic portion is embedded between the apolar parts of the lipids that form the membrane skeleton and They fulfill many other functions, among which the reduction in the permeability of protons and sodium ions, and their participation in signal transmission. Cholesterol is also essential in phagocytosis processes carried out by cells to capture many nutrients and, in general, for the function of cleaning up organic waste produced by macrophages.
The membranes must have a fluid structure so that the integrated proteins can move "horizontally" to interact with their ligands and with other proteins. The fluidity is given by unsaturated fat. With the excess of saturated fat, the membranes become rigid, but only with the necessary unsaturated fat the membranes are extremely fluid and very sensitive to temperature changes. Cholesterol stabilizes the structure of the membranes; In order for them to have the correct structure, they must have the correct proportions of saturated, unsaturated fats and cholesterol. The membranes produced in the laboratory without cholesterol are unstable to temperature changes, drastically modifying their fluidity against the small temperature changes that occur in the physiological range.
In addition to its functions in cell membranes, cholesterol is an important product that metabolism uses as a raw material to make other compounds:
*Bile salts
*Sex hormones
*Hormones of the adrenal cortex (corticosteroids)
*Vitamin D (Calciferol)
