Unit 8 Quiz Review- L2 Bio (9th grade)

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Flu (Pandemic/Epidemic)

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Biology

60 Terms

1

Flu (Pandemic/Epidemic)

Pandemic

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Pandemic

Outbreak over large area

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3

Epidemic

Outbreak in a single region

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4

How does a virus enter the body?

Through the nose, an open wound, and the mouth

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5

What are the knobby things on the outside of the virus called?

Keys/spike proteins

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6

Once inside the cell what happens to the virus capsules?

They break down and release DNA or RNA

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7

Once the DNA or RNA of the virus inside the cell / nucleus what happens

The virus makes copies of itself using the cells structures

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8

Outside the nucleus the DNA or RNA (of the virus) are doing what?

They're doing protein synthesis to make new viruses

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9

How do you new viruses leave the cells?

By rupturing/exploding the cell

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10

vaccine

When dead or weakened viruses get injected into the body for the immune system to be prepared when the actual virus comes

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Biosynthesis

The process when the virus is creating more virus particles inside a cell

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12

viral envelope

The outermost layer of a virus that has spike proteins attached

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13

Capsid

The protein shell around the DNA/RNA of the virus

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14

Macrophages

A type of white blood cell that consumes viruses

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15

antibodies

The protein structures that mark cells for destruction (they get produced by memory cells)

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16

memory cells

The cells that produce antibodies. They prevent one from getting the same sickness twice

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17

influenza

The common flu virus (cough,sneeze,fever)

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18

HPV (human Papillomavirus)

A virus usually transmitted sexually that causes warts in

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19

rhinovirus

An RNA virus that is highly contagious that causes cold symptoms

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20

herpes

A virus that causes cold sores

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21

HIV

A virus that causes AIDS and is transmitted sexually

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Ebola

A virus in Africa that is highly contagious and very deadly

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23

Pathogen

Any virus or bacteria that causes sickness

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Bacteria

Single celled prokaryotic living things that reproduce with binary fission

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Skin

First line of defense

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colony

Where bacteria originated in the body (Ex. the back of the throat has a bacteria colony that could spread throughout the body)

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Agar

The nutrient rich substance used to grow bacteria on

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Mucus

A slimy substance in the nose that helps protect the respiratory and digestive systems.

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Lyme Disease

A bacterial disease caused by ticks

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Macrophages

The structures white cells use to eat pathogens

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Penicilin

The first ever antibiotic discovered by Alexander Fleming

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Superbug/Pan resistant

A bacteria that is immune/resistant to all known antibiotics

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Evolution

When bacteria become immune due to only the fittest being able to survive

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Black Plague

A plague in 13th century europe that wiped out 1/3 of the population

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Lytic

The virus cycle in which the virus quickly reproduces and kills the cell

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Lysogenic

The virus cycle in which the virus stays dormant until certain conditions are met

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Immune system

The system in the body put in place to protect the body from anything harmful

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Infections

When pathogens get inside the body

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39

What do cells under attack do?

They send signals to the immune system

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40

Phlegm

A sticky and thick substance produced by the respiratory system and can be coughed up or expelled through the nose.

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How do vaccines work

They send in weakened, killed, or parts of viruses which the immune system can train on and create memory cells, so that when the real virus comes, it is prepared

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Will antibiotics help fight viruses?

No, the immune system must fight the viruses, medications can only help with the symptoms

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How do viruses get transmitted? (6 ways)

  1. Cut in skin

  2. Eating contaminated food

  3. Sexual transmission

  4. Through the air

  5. Bites from animals (Vectors)

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44

Vectors

Diseases transmitted by animals

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(T or F) Most bacteria are Prokaryotic

True, most bacteria do not have a nucelus

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46

Pus

The formation of dead white blood cells accumulating at the skin

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47

Alexander Fleming

The person who discovered antibiotics by leaving a colony next to a fungi, and saw that the fungi killed the bacteria

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48

Taxonomy

The discipline of classifying and naming organisms

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49

Carolus

A Swedish scientist in the 16th century that created Binomial Nomeclature

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50

Binomial Nomeclature

A 2-part scientific name for a species (always written in italics)

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Taxon

A group or level of organization

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The 7 Taxons

  1. Kingdom

  2. Phylum

  3. Class

  4. Order

  5. Family

  6. Genus

  7. Species

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53

Phylogeny

The study of evolutionary relationships among organisms (Ex. Homologous structures, chromosomal characteristics, DNA sequence, embryonic development, Fossil record)

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Systematics

Evolutionary classification or phylogeny, not just physical similarities

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Morphology

The physical features of an organisms compared to other organisms (Homologous structures)

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Cladistics

Uses derived characteristsics to establish evolutionary relationships

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Derived Character

A character that appears in recent ancestors/organisms but not in its older members

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Cladogram

Diagram that shows evolutionary relationship

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59

Molecular clock

Using DNA comparisons to see how long the organisms have been independently evolving

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Mutation Rate

The speed at which the DNA of an organism mutates (also known as the molecular clock of an organism)

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