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GCSE Science AQA : Biology > Organisation > Flashcards

Organisation Flashcards

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1
Q

What’s the definition of health ?

A
  • The state of physical and mental well being
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2
Q

True or false: Communicable diseases can be spread between person to person

A
  • True
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3
Q

Give two examples of non communicable diseases

A
  • Cancer
  • Asthma
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4
Q

What is ment by the term carcinogen ?

A
  • Something which causes cancer
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5
Q

Name two organs which are effected by drinking an excess of alcohol

A
  • Brain
  • Liver
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6
Q

What is a group of organs working together to preform a particular function called ?

A
  • An organ system
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7
Q

True or false : A tissue is a group of cells of only one type, which work together to preform a function

A
  • False
  • It can involve more than one type of tissue
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8
Q

What is the role of the digestive system ?

A
  • To break down and absorb food
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9
Q

What is an organ ?

A
  • A group of tissues that work together to achieve a specific purpose or goal.
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10
Q

Give two factors which can effect a persons health

A
  • Diet
  • Stress levels
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11
Q

Which side of the heart pumps deoxygenated blood to the lungs

A
  • Right side
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12
Q

What blood vessel carries blood into the right atrium of the heart?

A
  • Vena cava
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13
Q

What is the function of valves in the heart ?

A
  • Stop the back-flow of blood
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14
Q

Describe the route in which blood takes from the lungs to the heart

A
  • Oxygenated blood ( from the lungs enters the left atrium through the pulmonary vein.
  • The blood is then pushed into the left ventricle and then exits the heart through the aorta.
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15
Q

What is the function of white blood cells ?

A
  • To defend the body against infections
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16
Q

What is plasma ?

A
  • The liquid which varies everything in blood
17
Q

How have red blood cells adapted to their function ?

A
  • Biconcave shape (Large surface area)
  • No nucleus
18
Q

What is a stent ?

A
  • A tube that is placed inside an artery to keep coronary arteries open so oxygenated blood can flow to the heart
19
Q

How do stents reduce the chance of heart attacks?

A
  • They keep coronary arteries open to allow the blood to get back to the heart for redistribution
20
Q

Name one disadvantage of stents

A
  • There is a risk of developing blood clots
21
Q

What is a tumour ?

A
  • A mass of cells
22
Q

What causes a tumour to form ?

A
  • Tumours for as a result of cellular change which lead to uncontrolled cell growth and division
23
Q

What type of tumour is cancerous ?

A
  • Malignant

GCSE Science AQA : Biology (6 decks)

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