Tony suffers from a disease in which myelin is progressively lost. Tony's axons will increasingly lack insulation. The myelin is a protective barrier that would surround the axons. Its primary function is to insulate and protect the axons and also increase the effectivity of transmission of the impulses. The decrease in the amount of such would decrease protection, insulation and the enhancement of transmission.
Answer: The true statements about protein digestion and hydrolysis are;
1. Hydrochloric acid in gastric juices cause protein denaturation.
2. In small intestine trypsin attacks peptide bonds.
3.free amino acids are absorbed by the intestinal wall.
Explanation:
Protein digestion occurs in the duodenum and stomach and it is the breakdown of proteins to amino acids by action of Enzymes like trypsin, pepsin.
Protein is digested by the hydrolysis of carbon-nitrogen bond. Mechanical digestion of protein begins in the mouth and it continues in the small intestine and stomach.
Chemical digestion starts in the stomach where by hydrochloric acid in the gastric juice denatures the protein and convert pepsinogen to pepsin enzyme which convert the protein in food to peptides. Trypsin attacks the peptide bond that involves the carboxyl group which breaks it to polypeptide. Exopepdisases and dipeptidases breaks it down to amino acids. The amino acids released by protein digestion is then absorbed by the intestinal wall
The growth of the population is described below.
<h3><u>Explanation</u>:</h3>
The population growth of the region is varying according to many factors like,
A. Members of the reproductive age group.
B. Availability of nutrition.
C. Mortality rate of the population.
Here the members of the reproductive age group are few. The population being small in a large area there is a high availability of nutrients.
So the growth rate of the population will be very high. This is called the log phase of the growth.
Then comes the lag phase of growth where the population is considerably big with a fight for food and shelter. The survival of the fittest is seen and the population still grows but slowly. This is the lag phase.
But with time, the population growth is stopped because the ecosystem has a particular carrying capacity which is the maximum number of population that the ecosystem can support. So beyond this, the population won't increase, and thereby the natality rate and the mortality rate becomes equal.
I believe the answer is the B-cell
These are types of lymphocyte derived from the bone marrow and provides the humoral immunity. They produce antibodies; which are proteins that sticks to pathogen preventing them from sticking to cells and flagging them for destruction. The primary role of the B-cells is to make antibodies in large amounts and assist in destroying foreign agents through role as APC.
