Test #1

Question 1

Doubling time for world population

Answer 1

Decreasing world wide but not in the US. as the growth rate increases the number of years required for the population to double decreases

Question 2

Great Awakening

Answer 2

Mortality rate of children so high you had a lot so some would survive. Caused a dramatic increase in population

Question 3

Methods of controlling overpopulation

Answer 3

Legalized abortion. Free sterilization. Planned Parenthood.

Question 4

Components of Planned Parenthood

Answer 4

Family planning and economic growth, Reduced birth rate increased economic growth

Question 5

The environment and the expanding population

Answer 5

Must provide food, water, air, fuel, building materials. Must dispose of sewage, garbage, hazardous and industrial wast. Everything in the environment circles back to population.

Question 6

Four determinants of health

Answer 6

Heredity/Biological, Medical care, lifestyle, Environment

Question 7

Heredity/Biological determinant

Answer 7

genetics influence susceptibility to disease

Question 8

Medical Care determinant

Answer 8

Lack of medical care leads to more serious conditions. Self treating or self diagnosis vs self exams or early treatment before an illness decreases health.

Question 9

Lifestyle determinant

Answer 9

Easiest to control or change but technology has made us lazy. Can’t change genetics or difficult to change medical or impact on environment

Question 10

Environment Determinant

Answer 10

The first line of defense against disease. prevention is highly underfunded but impact is high. Body evolves to adjust to the environment..

Question 11

8 requirements for microorganisms to grow

Answer 11

Favorable O2 supply, Favorable temp, Food, Moisture, Favorable pH, Favorable osmotic pressure(environment), Absences of toxic materials, Space

Question 12

Aerobic Microorganism

Answer 12

microorganism requires oxygen in order to survive

Question 13

Anaerobic microorganism

Answer 13

Do not require oxygen to survive, smells like “rotten egg” as the break down organic material.

Question 14

Facultative Microorganism

Answer 14

exists either aerobically or anaerobically depending on the environment.

Question 15

Favorable temperature

Answer 15

Cells multiple most rapidly in a specific temperature range. excessive temp in either direction causes them to stop multiplying or die.

Question 16

Thermophilic

Answer 16

heat loving microbes 113-167*

Question 17

Mesophilic

Answer 17

Thrive and multiple at 98.6 so they can survive in the human body 69-113*

Question 18

Psychrophilic

Answer 18

cold loving organisms 19-68* causes spoilage of refrigerated foods.

Question 19

How do you adjust the mesophilic range

Answer 19

Refrigeration or cooking foods keeping them less than 45 and hotter than 140 degrees.

Question 20

Favorable osmotic environments

Answer 20

Isotonic, hypotonic, hypertonic always trying to be isotonic

Question 21

Osmotic Envirnoment Isotonic

Answer 21

Salt inside and outside the cell are equal

Question 22

Osmotic Envirnoment Hypotonic

Answer 22

saline content within the cell is greater than that of the surrounding environment

Question 23

Osmotic Envirnoment Hypertonic

Answer 23

the environment surrounding the cell contains a greater saline concentration than that within the cell

Question 24

Conditions for communicable disease

Answer 24

Agent, Environment, Host

Question 25

Methods of disease transmission

Answer 25

Air, water, food, fomites, animals insects

Question 26

Chronic VS Communicable disease

Answer 26

Chronic Disease lingers and becomes worse over time, Not transmittable to others.
Communicable Infectious and contageous