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Biology > Core Biology > Flashcards

Core Biology Flashcards

1
Q

Nerve

A

A bundle of neurones connected to the brain or spinal chord

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2
Q

Sensory Neurone

A

A nerve cell that transmits nerve impulse from a receptor to the central nervous system.

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3
Q

Relay Neurone

A

Neurone in the central nervous system

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4
Q

Motor Neurone

A

Nerve cells that transmits nerve impulse from the central nervous system to the effector

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5
Q

Effector

A

A structure that the nervous system causes to respond- a muscle or a gland.

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6
Q

Synapses

A

junctions between nerve cells

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7
Q

Central nervous system

A

Brain and spinal chord

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8
Q

Stimuli

A

Changes in the environment

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9
Q

Receptor

A

Changes that detect the stimuli

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10
Q

Nerve impulse

A

Electrical message that passes along a neurone

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11
Q

Neurones

A

Nerve cells

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12
Q

What do carbohydrates do?

A

Release energy

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13
Q

What do proteins do?

A

The control the growth and the repair

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14
Q

What controls the general health?

A

Vitamins and minerals

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15
Q

What helps with keeping your body hydrated?

A

Water

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16
Q

What prevents constipation in your body?

A

Fibre

17
Q

Define metabolic rate

A

Rate at which your cells use the energy consumed

18
Q

How can a person loose weight?

A
  1. increase exercise
  2. Increase metabolic rate
  3. reduce calorie intake
19
Q

What does a person need to do to gain weight?

A

Increase calorie intake

20
Q

What is the metabolic rate affected by?

A
  1. Genes
  2. Muscle
  3. Fat ratio
  4. Age
  5. Gender
  6. Climate
21
Q

Where is cholesterol made?

A

In the liver

22
Q

What is cholesterol determined by?

A
  1. fats you eat

2. Genes

23
Q

Give examples of bad fat that increase your cholesterol

A
  1. Butter
  2. cheese
  3. Saturated fats
24
Q

Give examples of unsaturated fats that reduce cholesterol

A
  1. Margarines

2. Fish oils

25
Q

Name the drug used to lower cholesterol?

A

Statins

Biology (2 decks)

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