LO. Biology Organization of Living Things Benchmark 5 Describe technology used in the prevention, diagnosis, and treatment of diseases and explain its function in terms of human body processes.

Available technologies Sanitation Adequate food and water supplies Inoculation Antibodies Biochemistry Medicines, Organ transplants Key concepts

Low Blood Pressure

Kidney transplant from a Pig?

Common contexts for these technologies—health maintenance and disease prevention activities, such as exercise and controlled diets Health monitoring activities, such as cholesterol and blood pressure checks and various tests for cancerblood pressure checks various tests for cancer Real-world Contexts

Chronic Disease Prevention Genes and Disease Vaccines How blood pressure works

When a person receives a vaccine (inoculation), his or her body A. receives antibodies against a specific pathogenreceives antibodies against a specific pathogen B. produces memory cells that provide resistance to that pathogenproduces memory cells that provide resistance to that pathogen C. produces antigens to fight the specific pathogenproduces antigens to fight the specific pathogen D. immediately begins fighting the infection caused by the pathogensimmediately begins fighting the infection caused by the pathogens

A. receives antibodies against a specific pathogen Incorrect: they receive a weakened or inactive form of the pathogen so their body can make its own antibodies Return to the question

B.produces memory cells that provide resistance to that pathogen Correct: These memory cells can quickly make antibodies when the pathogen comes into the body again in the future Return to the question

C. produces antigens to fight the specific pathogen Incorrect: Antigens are parts of the pathogen that trigger the immune response Return to the question

D. immediately begins fighting the infection caused by the pathogens Incorrect: Because this is the first time the person has been exposed to the pathogen they are slowly building up antibodies (and memory cells). Furthermore, most vaccines will not actually cause an infection because they are weakened or killed form of the pathogen. Return to the question