Disease and Disruption of Homeostasis Review

Which activity would stimulate the human immune system to provide protection against an invasion by a microbe?

• receiving antibiotic injections after surgery

• choosing a well-balanced diet and following it throughout life

• being vaccinated against chicken pox

• receiving hormones contained in mother’s milk while nursing

An individual who has had chicken pox rarely gets this disease again. This situation is an example of

• biological control

• negative feedback

• active immunity

• passive immunity

How do vaccinations help prepare the body to fight invasions of a disease-causing organisms?

• inhibiting antigen production

• stimulating antibody production

• inhibiting white blood cell production

• stimulating red blood cell production

Feedback interactions in the human body are important because they

• determine the diversity necessary for evolution to occur

• direct the synthesis of altered genes that are passed on to every cell in the body

• regulate the shape of molecules involved in cellular communication

• keep the internal body environment within its normal range

The graph shows the levels of glucose and insulin in the blood of a human over a period of time.

This graph represents:

• an allergic reaction

• nutrition

• maintenance of dynamic equilibrium

• photosynthesis

One similarity between cell receptors and antibodies is that both

• are produced by nerve cells

• are highly specific in their actions

• slow the rates of chemical reactions

• are involved in digestion

The uncontrolled division of certain body cells, which then invade the surrounding tissues and interfere with the normal functioning of the body, is known as

• cancer

• regeneration

• oogenesis

• cleavage

Base your answer to the following question on the graph

Which statement provides the best possible reason for the decrease in number of cases of bacterial pneumonia from 1940 to 1970?

• As a result of genetic engineering, humans became immune to the bacteria.

• Antibiotics were made available for the treatment of bacterial infections.

• The bacteria did not respond to medical treatments.

• As a result of sexual reproduction, the bacteria evolved into a harmless form.

How do some human white blood cells help destroy pathogenic bacteria?

• causing mutations in the bacteria

• engulfing and digesting the bacteria

• producing toxins that compete with bacterial toxins

• inserting part of their DNA into the bacterial cells

Which system is correctly paired with its function?

• immune system-intake and distribution of oxygen to cells of the body

• excretory system-remove potentially dangerous materials from the body

• digestive system-transport energy-rich molecules to cells

• circulatory system-produce building blocks of complex compound