kierandavis
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The first part of the GCSE B1 science

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kierandavis
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Diet, Exercise, and Infectious diseases

Question 1 of 15

1

Your metabolic rate is the rate of which chemical reactions occur in the body?

Select one of the following:

  • True
  • False

Explanation

Question 2 of 15

1

Your metabolic rate varies with ...

Select one or more of the following:

  • The amount of exercise you do

  • The proportion of muscle to fat in your body

  • What you eat for breakfast

  • Genetic factors

Explanation

Question 3 of 15

1

which type of cholesterol is bad for you?

Select one or more of the following:

  • LDL - low-density lipoprotein

  • HDL - high-density lipoprotein

Explanation

Question 4 of 15

1

Fill the gap ...... Compared to the mass of carbohydrates, the body needs (fill here) mass of vitamins and mineral ions.

Select one of the following:

  • A smaller

  • A greater

  • The same

Explanation

Question 5 of 15

1

What is a pathogen?

Select one of the following:

  • A disease causing micro-organism

  • A micro-organism

  • Infectious Bacteria

Explanation

Question 6 of 15

1

How does infectious bacteria make someone ill? [2 marks]

Select one or more of the following:

  • The bacteria releases toxins

  • they will multiply through out the body

  • they will rapidly multiply through out the body

  • The bacteria injects posion into the cells

Explanation

Question 7 of 15

1

Do antibiotics work on viruses?

Select one of the following:

  • True
  • False

Explanation

Question 8 of 15

1

What does MRSA stand for?

Select one of the following:

  • Methycillin Resistant Staphylococcus Aureus

  • Methycillin Resistant staphylococcus Acuteus

Explanation

Question 9 of 15

1

What do Painkillers do?

Select one of the following:

  • They makes us feel better while our immune system or antibiotics kill the pathogens.

  • They kill the viruses making us ill by surrounding them with walls of Fat.

Explanation

Question 10 of 15

1

Fill the gap ... The substances made by white blood cells to kill pathogens are called [fill here].

Select one or more of the following:

  • Antibodies

  • Antitoxins

  • Antibiotics

Explanation

Question 11 of 15

1

name 4 ways which the body prevents pathogens from entering the body.

Select one or more of the following:

  • Silia

  • Skin

  • eye lashes

  • Teeth

  • Ear wax

  • Urine

Explanation

Question 12 of 15

1

Can viruses be killed by antibiotics? Why?

Select one of the following:

  • No, because viruses need to be in inside the human cells to survive, so are inaccessible by the antibiotics

  • Yes, because they live on the outside of the throat and can be easily killed by antibiotics

  • No, because they mutate all the time and the antibiotics will not work on the newly mutated viruses

Explanation

Question 13 of 15

1

Do Phagocytes produce antibodies?

Select one of the following:

  • True
  • False

Explanation

Question 14 of 15

1

What cells help fight pathogens

Select one of the following:

  • White blood cells

  • Red blood cells

Explanation

Question 15 of 15

1

A person can be immunised against a disease by injecting them with an inactive form of a pathogen. Explain how this works?
Choose the best answer.

Select one of the following:

  • White blood cells produce Antibodies which attack the inactive pathogen. If a active form of that pathogen enters the body the antibodies will remember and re attack quicker.

  • Our body fights the pathogen and remembers it if it comes back in.

Explanation

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