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Z: GCSE Biology > B1 > Flashcards

B1 Flashcards

1
Q

What does MMR stand for?

A

Measles, mumps, rubella

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2
Q

What is an epidemic?

A

A disease affecting many people in an area

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3
Q

Why can’t antibiotics kill viruses?

A

Because viruses are found inside the cells and therefore inaccessible to the antibiotics

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4
Q

What nutrient is contained in agar?

A

Carbohydrates

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5
Q

What is a pandemic?

A

A worldwide outbreak of disease

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6
Q

Name a plant hormone?

A

Auxin

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7
Q

What are the male and female sex

hormones?

A

Testosterone (Male) and Oestrogen (Female)

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8
Q

How is information passed across a

synapse?

A

By a chemical transmitter

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9
Q

What do anabolic steroids do?

A

Increase the growth of muscle

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10
Q

Name some features of sexual reproduction

A

Two parents (half DNA from each), gametes, fertilization, variation

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11
Q

Name some features of asexual reproduction

A

One parent, no gametes, no fertilization,

genetically identical offspring- clone of parent

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12
Q

What is a hormone?

A

A chemical messenger

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13
Q

Hormones are produced by which organ?

A

A gland

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14
Q

How are hormones transported throughout the body

A

Blood

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15
Q

Which word describes a change in the environment?

A

Stimulus

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16
Q

What is a response to a stimulus called?

A

Tropism

17
Q

Name the gland that produces FSH

A

Pituitary gland

18
Q

Name the gland that produces oestrogen

A

Ovaries

19
Q

What is an extremophile?

A

An organism that can survive in extreme conditions

20
Q

Define biodiversity

A

A range of different species

21
Q

Which living organisms cause decay?

A

Maggots, worms, bacteria, fungi, microorganisms

22
Q

What 4 things are needed for decay to

occur?

A

Oxygen, moisture, microorganisms, warmth

23
Q

How many chromosomes do humans have?

A

46 (23 pairs)

Z: GCSE Biology (2 decks)

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