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2020 Semester 2 Science Exam > Immunology Part 5 > Flashcards

Immunology Part 5 Flashcards

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Biology 101 flashcards
1
Q

What is incubation?

A

The time in which the host has been infected but shows no symptoms of disease

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2
Q

How do parasites gain nutrition from their hosts?

A

Browsing on the surface, feeding on blood and tissues, absorbing nutrients across a body wall

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3
Q

How have parasites adapted over time?

A

They no longer possess the systems of the body that they do not require

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4
Q

How do pathogens cause disease in the body?

A

Disturbing the host’s metabolism, interfering with the host’s immune system, disrupting the production of toxins and enzymes

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5
Q

What do viruses do to cells?

A

Take over cellular mechanisms and program the cell to make copies of itself

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6
Q

What are the physical characteristics of viruses?

A

Sub-cellular, nuclear material inside a protein coat

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7
Q

What are the physical characteristics of fungi?

A

Eukaryotic, spread threads to devour food by releasing enzymes on to the surface and absorbing nutrients

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8
Q

What are the physical characteristics of arthropods?

A

Six legs, segmented body, often possess sucking mouth parts, may act as vectors for other parasites

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9
Q

What are the physical characteristics of worms?

A

Segmented/unsegmented, macroscopic/microscopic, many have hooks or suckers

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10
Q

What are the physical characteristics of protozoa?

A

Eukaryotic, single-celled, aquatic organisms

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11
Q

What are the physical characteristics of prions?

A

Abnormal proteins

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12
Q

What are the physical characteristics of bacteria?

A

Prokaryotic, have a cell wall, have one circular chromosome, possess ribosomes

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13
Q

What are some examples of arthropods?

A

Ticks, mosquitoes, lice

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14
Q

What are some examples of worms?

A

Tape worms, blood flukes, liver flukes

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15
Q

What are some examples of protozoa?

A

Malaria, sleeping sickness

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16
Q

What is an example of a disease cased by prions?

A

Mad cow disease

17
Q

What is the effect of fungi on the host?

A

Superficial disease that results in degradation of a surface

18
Q

What is the effect of viruses on the host?

A

Usually kills the host cell after using it for reproduction, may cause disease by interfering with cell processes

19
Q

What is the effect of arthropods on the host?

A

They usually suck blood

20
Q

What is the effect of worms on the host?

A

Generally not fatal unless the infestations block blood vessels

21
Q

What is the effect of protozoa on the host?

A

Range of diseases caused by toxins and enzymes

22
Q

What is the effect of prions on the host?

A

Cause carrier cell to burst and tissue destruction

23
Q

What is the effect of bacteria on the host?

A

Releases enzymes or toxins

2020 Semester 2 Science Exam (32 decks)

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