End Of Unit Questions Flashcards

1
Q

Name 3 stimuli which affect humans

A

Light, chemical, temperature, pain, touch, sound, pressure

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2
Q

What effect does oestrogen have on FSH production

A

It inhibits it

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3
Q

State 2 internal conditions that need to be controlled

A

Water, ions, blood sugar, temperature

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4
Q

How are impulses transmitted across a synapse?

A

Via a chemical

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5
Q

What type of cell detects a change in the environment?

A

Receptor

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6
Q

Name a plant hormone

A

Auxin

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7
Q

What is gravitropism?

A

The response of a root to gravity

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8
Q

Why do plant shoots bend towards light?

A

Auxin causes the side of the shoot away from the light to grow more so it becomes longer

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9
Q

How does the contraceptive pill work?

A

It give a woman more oestrogen to stop the production of FSH so no egg is released

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10
Q

Why are FSH and LH given in fertility treatment?

A

FSH causes the egg to mature and LH causes the egg to be released

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11
Q

Describe the sequence of events in a reflex action?

A
  • Receptor picks up a stimulus
  • sends electrical impulse through sensory neurone to CNS me relay neurone
  • sends electrical impulse from CNS to effector via motor neurone
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12
Q

Name the 2 main types of effector in the human body

A

Muscles and glands

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