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Flashcards in Science Twst Deck (20)
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1

Enemies or disease causing agents can be found in?

Food/water
Skin

2

An example of a pathogenic bacteria is?

Steptococci

3

Any disease causing agent is a ?

Pathogen

4

Bacteria can reproduce as quickly as once every?

20 minutes

5

What are poisonous substances released by some bacteria

Toxins

6

Salmonella bacteria attacks cells in the what

Digestive track

7

Tuberculosis bacteria attack cells in the

Lungs

8

Streptococci bacteria attacks cell is the?

Throat

9

Viruses are not made of _____ and cannot_____ on thumper own

Cells
Reproduce

10

Measle viruses attack _____ cells

Skin

11

Influenza viruses attack______ cells

Throat and respiratory

12

What is the first defence against pathogens

Skin

13

What are the second line of defence to pathogens

Mucuose membrane
Cilia
Tears
Gastric juices

14

What structures are found in blood which are part of your body's immune system?

White blood cells

15

__________ is a clear liquid which circulates throughout the body in the vessels of the __________ system

Lymph
Lymphatic

16

Dead pathogens are collected in structures called__________ ____________ before the removal from the body

Lymph nodes

17

Every Collin the body and every pathogen have special markers on them called

Antigens

18

Y-shaped molecules produced by lymphocytes are called_________ they fit together like a jigsaw or a lock and key with molecules called_______ on the surface of pathogens

They are called antibody
And fit with a molecule called Antigone

19

A___________ is a way to become immune to a disease without first becoming sick without a disease

Vacation

20

A vaccine contains________ or ___________ forms of a pathogen

Weakened or dead