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10jonty.bird
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B1 things I didn't know

Question 1 of 14

1

A person who is malnourished:

Select one of the following:

  • is overweight

  • is underweight

  • has an unbalanced diet

  • has lack of fibre in their body

  • has a lack of iron in their body

Explanation

Question 2 of 14

1

Inherited factors affect metabolic rate but cannot affect cholesterol levels.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 14

1

The WBCs help defend against pathogens by:

Select one or more of the following:

  • producing antibodies

  • producing antigens

  • producing antitoxins

  • ingesting them

  • getting inside the pathogens and reproducing rapidly inside them

  • by lowering the blood temperature rapidly so it is too cold for the pathogens to survive

Explanation

Question 4 of 14

1

What is the max temp a petri dish culture in a school should be kept at?

Select one of the following:

  • 20ºC

  • 25ºC

  • 30ºC

  • 35ºC

  • 40ºC

  • 45ºC

Explanation

Question 5 of 14

1

In the synapse between the sensory and the motor neurone, a chemical is released across the synapse, that causes an impulse to be sent along the motor neurone.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 14

1

Many modern oral contraceptives are . . . . or . . . . .

Select one or more of the following:

  • mainly progesterone

  • mainly oestrogen

  • mainly LH

  • mainly FSH

  • progesterone only

  • oestrogen only

Explanation

Question 7 of 14

1

Phototropism is:

Select one or more of the following:

  • The plant's response to light

  • The plant's response to gravity

  • is controlled by auxin

  • is controlled by ethylene

  • The plant's response to lack of glucose

Explanation

Question 8 of 14

1

The way that auxin works is that when in contact with the plant cells it causes them to grow more rapidly. It is present in the tips of the plants.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 14

1

How many different organisms are used for testing new drugs before it is released commercially?

Select one of the following:

  • 3

  • 2

  • 4

  • 5

  • 6

  • 7

  • 1

Explanation

Question 10 of 14

1

Thalidomide was developed as a morning sickness pill

Select one of the following:

  • True
  • False

Explanation

Question 11 of 14

1

Lichen are a particularly useful as an indicator of what?

Select one of the following:

  • SO2

  • CO2

  • CO

  • NOx

Explanation

Question 12 of 14

1

Invertebrate animals can be used as water pollution indicators of . . . . in water

Select one of the following:

  • oxygen

  • CO2

  • SO2

  • nutrients

  • nitrates

Explanation

Question 13 of 14

1

Microorganisms digest fastest in warm, dry, aerobic conditions.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 14

1

In genetic engineering how are the genes 'cut out'?

Select one of the following:

  • using hormones

  • using enzymes

  • using a small electric shot

  • very small scissors

  • using a laser

Explanation

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