B3 Flashcards

(43 cards)

1
Q

What are antibiotics?

A

Medicines that help cure BACTERIAL diseases by killing infective bacteria inside the body

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

What is clinical drug testing?

A

Drug testing done on HEALTHY human VOLUNTEERS and patients

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

What is a communicable disease?

A

A disease that can be spread between individuals, either directly or indirectly

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

What is a double blind trial?

A

A study performed where neither the researcher or the patient know whether the patient is taking the drug or a placebo

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

What is gonorrhoea and its symptoms?

A

A STD caused by BACTERIA
Symptoms- thick yellow or green discharge or pain during urinating

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

What is HIV and what can it lead to?

A

An infectious VIRUS that weakens the human immune system and can lead to AIDS

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

What is malaria and what are its symptoms?

A

A disease caused by a PROTIST
Symptoms- causes recurrent episodes of fever that can be fatal

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

What is measles and the symptoms?

A

A diseased caused by a VIRUS
Symptoms- fever and a red skin rash

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

What are monoclonal antibodies?

A

Antibodies produced from a SINGLE CLONE OF CELLS that are specific to ONE binding site on ONE protein antigen

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

What is a non communicable disease?

A

A disease that can’t be spread between individuals

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

What are pathogens?

A

Microorganisms that cause infectious disease

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

What are placebos?

A

A substance designed to be indistinguishable from being a drug being tested but poses no actual effect to the patient

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

What is preclinical drug testing?

A

Drug testing done in a laboratory using cells, tissues and live animals

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

What are rose black spots?

A

A FUNGAl disease where purple or black spots develop on the leaves, which often turn yellow and drop early

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

What is salmonella and what are its symptoms?

A

A BACTERIAL disease that is spread by bacteria injected in food
Symptoms- fever, abdominal cramps, vomiting and diarrhoea

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

What are side effects?

A

Additional effects that the drug has that are different form the expected effect of the drug

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is Tobacco Mosaic Virus (TMV)?

A

A VIRAL infection
Produces a mosaic pattern on the leaves and limits the plant growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is a vaccination?

A

Process of introducing small quantitates of dead or inactive forms of a pathogen into the body to stimulate the white blood cells to produce antibodies

19
Q

What is a white blood cell?

A

An important type of cell that makes up the immune system and produces antibodies and antitoxins

20
Q

What is the immune response in the body?

A

White blood cells create antibodies and antitoxins to engulf the pathogens in phagocytosis

21
Q

What are new drugs tested for?

A

Efficacy, toxicity and dose

22
Q

What happens after a vaccination triggers an immune response?

A

Memory cells remain- if the pathogen renters the body, it can be quickly recognised and destroyed

23
Q

What is the difference between painkillers and antibiotics?

A

Painkillers only treat the symptoms whereas antibiotics kill bacteria

24
Q

Give an example of a disease caused by protists

25
Give some examples of viral diseases
HIV, Measles and TMV
26
Give an example of a fungal disease
Rose black spot
27
Give some examples of bacterial diseases
Gonorrhoea, salmonella
28
Why are pathogens dangerous?
They reproduce quickly, and cause damage by secreting toxins or damaging cells (e.g. viruses enter and reproduce inside a cell, which causes it to die)
29
What are some bad things about antibiotics?
They can’t kill viruses very well with the risk of damaging the cell, and bacteria can become resistant due to overuse
30
What measures are taken to reduce the transmission of communicable diseases?
Improving hygiene, using contraception, vaccination, destruction of infected plants/animals
31
What are the functions of monoclonal antibodies?
They target specific cells or chemicals in the body and are highly specific to one antigen
32
What are the limitations of monoclonal antibodies?
They have unwanted side effects and are expensive to produce
33
What are the limitations of monoclonal antibodies?
They have unwanted side effects and are expensive to produce
34
How are monoclonal antibodies created?
Mouse lymphocytes are stimulated to produce a particular antibody Lymphocytes are extracted and fused with cancer cells- forms a hybridoma cell The selected hybridoma cells are cloned Large quantities of these antibodies are produced after they are purified
35
What can monoclonal antibodies be used to diagnose?
Pregnancy- targets the HCG hormones Detects pathogens- e.g HIV, AIDS Locate substances in cells or tissues using a fluorescent dye Measure the concentration of the chemicals in blood
36
What treatment can monoclonal antibodies be used for?
Cancer- targets cancer cells only They can be bound to toxins, drugs or radioactive substances
37
What are some of the causes of plant diseases?
Viral, bacterial or fungal pathogens Nutrient deficiency- magnesium deficiency results in chlorosis, because magnesium is needed to make chlorophyll- nitrate deficiency results in a stunted growth since nitrates are used in protein synthesis Insects, such as aphids
38
What might be some symptoms when detecting plant diseases?
Abnormal or stunted growth, rotting, discolouration, spots on leaves, visible signs of pathogens (e.g eggs or bacterial slime)
39
What are some of the methods of identifying disease?
Testing in labs, monoclonal antibody test kits or using a gardening manual or website
40
What are some physical plant defences?
Waxy cuticle Cellulose cell walls Bark/ dead cells around the stem
41
What are some mechanical plant defences?
Mimicry Leaf responses Thorns and hairs
42
What are some chemical plant defences?
Poison Antibacterial chemicals
43
How to determine the rate of transpiration?
Distance travelled by the air bubbles/ time taken