Question

question 14 1 pts which antibody is synthesized by immature b cells and then inserted into their plasma membranes? immunoglobulin m immunoglobulin g immunoglobulin a immunoglobulin e immunoglobulin d question 15 1 pts which of the following is a powerful poison that acts directly on any cell and quickly kills it? cytotoxin phagotoxin lymphotoxin granulotoxin question 16 1 pts molecules formed by the reactions of the complement cascade assemble themselves on the enemy cells surface, which results in cytolysis. crenation. apoptosis. hemolysis.

Explanation:

• Question 14: Immature B - cells synthesize immunoglobulin M (IgM) which is inserted into their plasma membranes. IgM is the first antibody to be produced in an immune response and is also present on the surface of B - cells.
• Question 15: Cytotoxin is a powerful poison that acts directly on any cell and quickly kills it. Phagotoxin is related to the process of phagocytosis (cell - eating) in a different context (not a general cell - killing poison). Lymphotoxin is mainly involved in immune - related cell interactions (e.g., in the lymphatic system context of immune responses). Granulotoxin is not a commonly known general - purpose cell - killing poison like cytotoxin.
• Question 16: When molecules formed by the reactions of the complement cascade assemble on the enemy cell's surface, it results in cytolysis. Crenation is the shrinking of cells (usually due to osmotic effects in a hypertonic solution). Apoptosis is programmed cell death (a regulated process within the cell itself, not directly due to complement - cascade - induced assembly on the cell surface). Hemolysis specifically refers to the lysis of red blood cells, while cytolysis is a more general term for cell lysis.

Answer:

Question 14: immunoglobulin M
Question 15: cytotoxin
Question 16: cytolysis