Bacteria

Question 1

What is bacteria?

Answer 1

Microorganisms that are microscopic plant or animal cells. Bacteria is also known as germs or
microbes.

Question 2

What does non-pathogenic mean?

Answer 2

Non-disease causing.

Question 3

What does pathogenic mean?

Answer 3

Disease-causing.

Question 4

What are the three main groups in which bacteria are classified?

Answer 4

Cocci, bacilli, spirilla.

Question 5

What are the three main groups in which bacteria are classified?

Answer 5

Bacteria live, grow, and multiply best in warm, dark, damp, unsanitary conditions.

Question 6

What is the reproduction process of bacteria?

Answer 6

Binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter
cells.

Question 7

What are bacteria endospores?

Answer 7

Dormant structures, which are extremely resistant to hostile physical and chemical conditions such as
heat, UV radiation and disinfectants.

Question 8

What is an example of good bacteria?

Answer 8

Bacteria found mostly in the mouth and intestines where they help break down food.

Question 9

What is a virus?

Answer 9

A virus is a submicroscopic structure capable of infesting almost all plants, animals, fungi, including
bacteria.

Question 10

How do viruses spread?

Answer 10

Through touch, exchanges of saliva, coughing or sneezing, sexual contact, contaminated food or
water, insects that carry them from one person to another.

Question 11

What are the four main groups in which viruses are classified?

Answer 11

1. Helical. 2. Polyhedral. 3. Spherical. 4. Complex.

Question 12

What is the type of virus that comprehends adenovirus?

Answer 12

Polyhedral.

Question 13

What is the type of virus that comprehends the influenza and corona virus?

Answer 13

Enveloped or spherical.

Question 14

How does viruses reproduce?

Answer 14

Viruses enter a healthy cell, grow to maturity, and reproduce, often destroying the cell.

Question 15

What are some examples of diseases caused by viruses?

Answer 15

Viruses cause the common cold, influenza, measles, chickenpox, smallpox, hepatitis, polio, and AIDS.

Question 16

What are some examples of diseases caused by bacteria?

Answer 16

Bacteria causes strep throat, blood poisoning, rheumatic fever, tetanus, typhoid, tuberculosis,
diphtheria, cholera, acute enteritis, and diarrhea.

Question 17

How is HIV transmitted?

Answer 17

HIV is transferred through the transfer of bodily fluids, such as semen or blood.

Question 18

How can Hepatitis be transmitted?

Answer 18

Contaminated food or water, blood to blood, sex, fecal-oral.

Question 19

What are parasites?

Answer 19

Parasites are vegetable or animal organisms that live in or on another living organism and draw their
nourishment from that organism, or host.

Question 20

What are some examples of vegetable parasites?

Answer 20

Include molds, mildews, yeasts, and fungi which can produce a contagious disease like ringworm.

Question 21

What are some examples of animal parasites?

Answer 21

Include head lice, scabies, the itch mite, which burrows under the skin.

Question 22

What is a pathogen?

Answer 22

Microorganisms capable of causing disease.

Question 23

What are some ways to spread disease by contact?

Answer 23

When an infected person touches a surface such as a doorknob, countertop, or faucet handle, leaving
behind microbes that are then transferred to another person who touches that surface and then touches
his or her eye, mouth, or nose. Droplets spread by sneezes, coughs, or simply talking.

Question 24

What are some ways to spread disease by common vehicles?

Answer 24

Contaminated food, water, blood, or other vehicles may spread pathogens.

Question 25

What is an example of disease transmitted by common vehicles?

Answer 25

Microorganisms like E. coli and Salmonella enter the digestive system in this manner.

Question 26

How does diseases happen?

Answer 26

Occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.

Question 27

How does infection happen?

Answer 27

Occurs when viruses, bacteria, or other microbes enter your body and begin to multiply.

Question 28

What is pus?

Answer 28

Pus is a fluid product of inflammation and contains white blood cells and the debris of dead cells, and bacteria.

Question 29

What is an example of local infection?

Answer 29

A local infection, such as a papule, or abscess, is confined to a particular part of the body and is indicated by a lesion containing pus.

Question 30

What is an example of general infection?

Answer 30

A general infection, such as syphilis results when the bloodstream carries the bacteria and their toxins to all parts of the body.

Question 31

What is immunity?

Answer 31

Immunity is the ability of the body to resist disease and destroy microorganisms when they have entered the body.

Question 32

What is the important role of white blood cells?

Answer 32

White blood cells (leukocytes) travel through the bloodstream and into tissues, searching for and attacking microorganisms and other invaders.

Question 33

What are the three different ways to obtain immunity?

Answer 33

Natural immunity, naturally acquired immunity, artificially acquired immunity.

Question 34

What is an example of natural immunity?

Answer 34

The skin acts as a barrier to block germs from entering the body.