Exam 10: Body Defences

____________________ is the process by which a substance separates from a solution.

Pathogenic bacteria induce tissue damage and produce disease by invading host cells and taking over the cellular biochemical facilities for their own purposes.

MATCHING Indicate the characteristics that apply to bacteria and viruses by using the answer code (options may be used more than once or not at all): -can induce host cells to produce substances toxic to the cell

Which of the following is NOT a means by which viruses can lead to cellular damages or death?

____________________ against cancer cells involves an interplay among cytotoxic T cells,NK cells,macrophages,and interferon.

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all): -secrete interleukin 1

Myasthenia gravis is a(n)____________________ disease.

Only Rh-negative individuals can produce anti-Rh antibodies.

What is the most abundant immunoglobulin in the blood?

____________________ disease occurs when destructive inflammatory processes "spill over" into normal tissue in the presence of excessive numbers of antigen-antibody complexes.

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all): -present antigen to suppressor T cells

If a type B negative patient is accidentally given type A positive blood,what will happen?

MATCHING Indicate the characteristics that apply to bacteria and viruses by using the answer code (options may be used more than once or not at all): -self-sustaining,single-celled organisms

One of the most lethal consequences of mismatched blood transfusions is acute kidney failure caused by blockage of urine-forming structures by haemoglobin precipitation.

Phagocytes can destroy foreign microbes only after they have engulfed these invaders.

Distinguish between the two pathways by which the complement system can be activated.

Bacteria have been genetically engineered to produce interferon.

With what does the body fail to recognize and tolerate particular self-antigens?

Endogenous pyrogen (EP),leukocyte endogenous mediator (LEM),and interleukin 1 (IL-1)are all believed to be identical or closely related chemical mediators.

Interferon is secreted by lymphoid organs.