Question

Gram-negative bacteria are composed of: outer cell membrane, thin peptidoglycan layer, and cell membrane. True or False

Immunoglobulins are Y-shaped proteins produced by T cells of the immune system in response to exposure to pathogens. True or False

Antigens is a foreign substance that stimulates the formation of antibodies that react nonspecifically with it to induce an immune response. True or False

34.Infection refers to any entry, establishment and multiplication of pathogenic organisms within a host. True or False

Disease is physiological condition in which part, or all the body is not properly adjusted or is incapable of performing normal functions; any change from a state of health. True or False

Bacteria cells have all the following EXCEPT which? -genetic material -cell membrane -ribosomes -All -None

Answer 1

1. The gram negative bacteria cell wall is made with a single peptidoglycan layer which is surrounded by a membraneous layer called outer cell membrane and inner cell membrane-So this statement is False.

2. The immunoglobulins or antibody are 'Y' shaped it is correct but the immunoglobulins are not produced by only T cell the immunoglobulins are also produced by B cells-So this statement is False.

3. Antigens are any type of foreign element which produces or induced immune response by producing antibody which reacts specifically with the antigen-So this statement is False.

4. Infection refers to any pathogenic organism enters the host cell and multiplies itself-So this statement is True.

5. Disease is known as incapable of functioning normal function due to change in the health-So this option is True.

6. Genetic material,cell membrane,ribosomes all are present in the bacterial cell so the correct option is- None.