Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Defence System > Flashcards

Defence System Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

Pathogen

A

An organism that causes disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Immunity

A

The ability to resist infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

General defence system

A

Acts as a barrier to all pathogens attempting to gain entry to the human body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

First line of general defence

A

Skin
Mucous
Lysozome
Acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

First line of defence:skin

A

Structural barrier which prevents the entry of infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

First line of defence:mucus

A

Traps pathogens in sticky mucus and stops it from entering the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

First line of defence:Lysozome

A

Enzyme in sweat tears and saliva that dissolves the cell walls of bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

First line of defence:Hydrochloric acid

A

Acidic solution attacks and kills the pathogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Second line of defence

A

Phagocytic white blood cells;phagocytes,macrophages
Defence proteins;complement, interferons
Inflammation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Phagocytic white blood cells

A

White blood cell that engulfs ans destroys pathogens -phagocytes
Larges phagocytes- macrophages
Some in bloodstream others stay in spleen or lymph nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Defence protein: Complement

A

A set of proteins activated in an infection that destroys pathogens and viruses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Defence proteins: Interferons

A

A set of proteins that prevent/INTERFERE WITH the growth of viral infections e.g colds and influenza

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Second line of defence:inflammation

A

Chemicals are released to dilate capillaries and make it more porous to allow more white blood cells.
Generates heat and kills the bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Specific defence system

A

Attacks particular pathogens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Third line of defence

A

Monocytes
Lymphocytes
Antibodies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Monocytes

A

Mature in macrophages
Engulf the pathogens and display the antigens found on the pathogen on its own surface
Causes antibodies to be produced

17
Q

Lymphocytes

A

Attack cells with antigens on its surface OR
Makes antibodies
Lymphocyte B and T cells

18
Q

Antigen

A

A foreign molecule that stimulates the production of antibodies

19
Q

Antibodies

A

A protein produced by white blood cells in response to a specific antigen

20
Q

Induced immunity

A

The ability to resist disease caused by a specific pathogen by the production of antibodies

21
Q

Active immunity

A

Involves the production of a person’s own antibodies in response to foreign antigens that enter the body

22
Q

Natural active immunity

A

Occurs when a pathogen enters the body in a normal/natural way

23
Q

Artificial active immunity

A

Occurs when a pathogen is mediaclly introduced to the body

24
Q

Vaccine

A

A non disease causing dose of the pathogen which triggers the production of antibodies

25
Q

Passive immunity

A

Occurs when individuals are given the antibodies that were formed by another organism

26
Q

Natural passive immunity

A

Ccurs when a child gets antibodies from its mother

27
Q

Artificial passive immunity

A

When a person is given an injection containing antibodies made by another organism

28
Q

Lymphocyte T cells

A 
Mature in Thymus gland 
Killer T cells 
Helper T cells
Suppressor T cells
Memory T cells
29
Q

Lymphocyte B cells

A

Mature in Bone marrow
Plasma B cells
Memory B cells

30
Q

Plasma B cells

A

Produce antibodies

31
Q

Memory B cells

A

Survive for years after the infection is eliminated and can make the specific antibody if the same infection later enters the body

32
Q

Helper T cells

A

Stimulates B cells and killer T cells

33
Q

Killer T cells

A

Destroy abnormal human body cells

34
Q

Suppressor T cells

A

Inhibit the immune response

35
Q

Memory T cells

A

Survived for years after the infection is eliminated and can stimulate the specific B cells and killer T cells if the same infection later enters the body

Biology (27 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions