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B3: Quiz 1 – Answers
B3: Quiz 1 – Answers
1)
a) A communicable disease is a disease that can be spread between organisms. Examples are coronavirus, salmonella, the flu/ common cold, gonorrhoea, measles, HIV etc.
b) A non-communicable disease is a disease that cannot be spread between organisms. Examples are cancer, diabetes, coronary heart dieses etc.
2)
a) Around 100 times smaller
b) Bacteria produce toxins that make us feel ill
3)
a) Viruses are smaller
b) Viruses reproduce themselves by invading a body cell and high jacking the cell’s machinery to produce many copies of themselves
c) The cell will burst
4)
a) Bacteria
b) Any 2 from stomach cramps, diarrhoea, vomiting and a fever
c) Any 2 from,
5)
a) Bacterium
b) Sexual contact such as unprotected sex
c) The two symptoms are:
i) Infected individuals are told to avoid sexual activities with other individuals
ii) Use a protective barrier like a condom or femidom
e)
i) Antibiotics
ii) A strain of gonorrhoea has become resistance to antibiotics
6)
a) Virus
b) Measles is usually spread by infected individuals coughing or sneezing in air which results in droplets containing the virus being suspended in air. Other individuals then breath in the droplets containing the virus from the air and become infected
c) A fewer and a rash
d) We can vaccinate individuals (mainly children)
7)
a) Virus
b) Sexual contact/ unprotected sex and the sharing of needles
c) The immune system
d) They are given antiretroviral drugs
8)
a) TMV causes a mosaic pattern to develop on the leaves, which discolours the leaves. The discolouring of the leaves reduces the plant’s ability to photosynthesise, which means that the plant will not grow properly – a plant with TMV will be smaller than a plant that does not have TMV
b) A plant without TMV produces a greater yield
c) No, there is no known cure
a) A communicable disease is a disease that can be spread between organisms. Examples are coronavirus, salmonella, the flu/ common cold, gonorrhoea, measles, HIV etc.
b) A non-communicable disease is a disease that cannot be spread between organisms. Examples are cancer, diabetes, coronary heart dieses etc.
2)
a) Around 100 times smaller
b) Bacteria produce toxins that make us feel ill
3)
a) Viruses are smaller
b) Viruses reproduce themselves by invading a body cell and high jacking the cell’s machinery to produce many copies of themselves
c) The cell will burst
4)
a) Bacteria
b) Any 2 from stomach cramps, diarrhoea, vomiting and a fever
c) Any 2 from,
- eating food that has been prepared in unhygienic conditions
- eating food that has not been thoroughly cooked
- if the animal that the food came from had salmonella (e.g. the chicken that the individual ate had salmonella)
- washing fruits and vegetables thoroughly
- cleaning cooking utensils and food preparation areas after use
- ensuring that food is thoroughly cooked
- do not eat food that has gone past its use by date (this is especially true for chicken)
5)
a) Bacterium
b) Sexual contact such as unprotected sex
c) The two symptoms are:
- pain whilst urinating
- thick yellow or green discharge coming out of the penis or vagina
i) Infected individuals are told to avoid sexual activities with other individuals
ii) Use a protective barrier like a condom or femidom
e)
i) Antibiotics
ii) A strain of gonorrhoea has become resistance to antibiotics
6)
a) Virus
b) Measles is usually spread by infected individuals coughing or sneezing in air which results in droplets containing the virus being suspended in air. Other individuals then breath in the droplets containing the virus from the air and become infected
c) A fewer and a rash
d) We can vaccinate individuals (mainly children)
7)
a) Virus
b) Sexual contact/ unprotected sex and the sharing of needles
c) The immune system
d) They are given antiretroviral drugs
8)
a) TMV causes a mosaic pattern to develop on the leaves, which discolours the leaves. The discolouring of the leaves reduces the plant’s ability to photosynthesise, which means that the plant will not grow properly – a plant with TMV will be smaller than a plant that does not have TMV
b) A plant without TMV produces a greater yield
c) No, there is no known cure
Questions
1)
a) Give a definition of a communicable disease. Give an example.
b) Give a definition of a non-communicable disease. Give an example.
2) Communicable diseases can be caused by bacteria.
a) How many times smaller are bacteria compared to a normal human cell?
b) Why do bacterial infections make us feel ill?
3) Communicable diseases can be caused by viruses.
a) Which are smaller out of bacteria and viruses?
b) How do viruses reproduce themselves in your body?
c) What happens when there are too many viruses in a body cell?
4) This question is all about salmonella.
a) Is salmonella a bacterium, virus, parasite or fungi?
b) Salmonella causes food poisoning. Give two symptoms of an individual who is suffering from food poisoning.
c) Give two ways that an induvial can become infected with salmonella.
d) Give two ways that individuals can reduce their chances of becoming infected with salmonella.
e) What can poultry farmers do to reduce the chances of their birds having salmonella and how does this reduce the chances of an individual eating the poultry becoming infected with salmonella?
5) This question is all about gonorrhoea.
a) Is gonorrhoea a bacterium, virus, parasite or fungi?
b) How is gonorrhoea spread?
c) Give the two symptoms of gonorrhoea.
d)
i) What advice do we give to individuals who are infected with gonorrhoea to reduce the spread of gonorrhoea?
ii) How can individuals reduce their chances of contracting gonorrhoea during sex?
e)
i) How is gonorrhoea treated?
ii) Why is it becoming more difficult to treat individuals with gonorrhoea?
6) This question is about measles.
a) Is measles a bacterium, virus, parasite or fungi?
b) Explain how measles is spread.
c) What are the symptoms of a mild cases of measles?
d) What can we do to reduce the effect that measles has on individuals?
7) This question is all about HIV.
a) Is HIV a bacterium, virus, parasite or fungi?
b) Give two ways that HIV can be spread.
c) What system in the body does HIV affect?
d) Currently there is no known cure for HIV. What are infected individuals given to control/ slow the development of HIV/ AIDS?
8) This question is about tobacco mosaic virus (TMV).
a) What effect does TMV have on the appearance of a plant and how does this effect the growth of a plant with TMV?
b) Out of a plant infected with TMV and a plant not infected with TMV, which plant will produce the greatest yield?
c) Is there a known cure for TMV?
1)
a) Give a definition of a communicable disease. Give an example.
b) Give a definition of a non-communicable disease. Give an example.
2) Communicable diseases can be caused by bacteria.
a) How many times smaller are bacteria compared to a normal human cell?
b) Why do bacterial infections make us feel ill?
3) Communicable diseases can be caused by viruses.
a) Which are smaller out of bacteria and viruses?
b) How do viruses reproduce themselves in your body?
c) What happens when there are too many viruses in a body cell?
4) This question is all about salmonella.
a) Is salmonella a bacterium, virus, parasite or fungi?
b) Salmonella causes food poisoning. Give two symptoms of an individual who is suffering from food poisoning.
c) Give two ways that an induvial can become infected with salmonella.
d) Give two ways that individuals can reduce their chances of becoming infected with salmonella.
e) What can poultry farmers do to reduce the chances of their birds having salmonella and how does this reduce the chances of an individual eating the poultry becoming infected with salmonella?
5) This question is all about gonorrhoea.
a) Is gonorrhoea a bacterium, virus, parasite or fungi?
b) How is gonorrhoea spread?
c) Give the two symptoms of gonorrhoea.
d)
i) What advice do we give to individuals who are infected with gonorrhoea to reduce the spread of gonorrhoea?
ii) How can individuals reduce their chances of contracting gonorrhoea during sex?
e)
i) How is gonorrhoea treated?
ii) Why is it becoming more difficult to treat individuals with gonorrhoea?
6) This question is about measles.
a) Is measles a bacterium, virus, parasite or fungi?
b) Explain how measles is spread.
c) What are the symptoms of a mild cases of measles?
d) What can we do to reduce the effect that measles has on individuals?
7) This question is all about HIV.
a) Is HIV a bacterium, virus, parasite or fungi?
b) Give two ways that HIV can be spread.
c) What system in the body does HIV affect?
d) Currently there is no known cure for HIV. What are infected individuals given to control/ slow the development of HIV/ AIDS?
8) This question is about tobacco mosaic virus (TMV).
a) What effect does TMV have on the appearance of a plant and how does this effect the growth of a plant with TMV?
b) Out of a plant infected with TMV and a plant not infected with TMV, which plant will produce the greatest yield?
c) Is there a known cure for TMV?