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yr10-11. Biology > Chapter 4 Blood, Heart, Breathing And Plant Transport > Flashcards

Chapter 4 Blood, Heart, Breathing And Plant Transport Flashcards

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1
Q

What is blood plasma

A

a pale yellow liquid, which transports dissolved substances around the body

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2
Q

How is oxygen carried around the body

A

Oxygen binds to haemoglobin forming

oxyhaemoglobin which is carried to all cells for respiration.

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3
Q

Function of white blood cells

A

to fight disease

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4
Q

What are the two types of white blood cells

A

Phagocytes

Lymphocytes

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5
Q

What do Lymphocytes do

A

produce antibodies which attach the pathogen and destroy it.

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6
Q

What do phagocytes don

A

engulf pathogens and digest them

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7
Q

What is the function of the right ventricle

A

pumps blood to the lungs where gas exchange takes place

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8
Q

What if the function if the left ventricle

A

pumps blood around the rest of the body

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9
Q

What is the structure of an artery

A

Thick outer wall

Small lumen

Thick layer of muscles and elastic fibres

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10
Q

What is the structure of a vein

A

Thin layer of muscles and elastic fibres

Large lumen

Fairly thin outer wall

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11
Q

What is the structure of a capillary

A

Very small lumen

Wall made of a single layer of cells

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12
Q

Function of artery

A

transport oxygenated blood under high pressure away from the heart

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13
Q

Function of vein

A

transport deoxygenated blood to the heart

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14
Q

Function of capillary

A

allow fast exchange/diffusion of substances

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15
Q

Pathway of blood flow through the heart

A

Vena cava –> right atrium –>right ventricle –>pulmonary artery –> Pulmonary vein –> left atrium –> left ventricle –> aorta

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16
Q

Three different types of treatment for cardiovascular disease ( give examples)

A

Drugs (statins)
Mechanical devices (stent pacemakers)
Heart transplant

17
Q

What is transpiration

A

Transpiration is the loss of water vapour from the surface of the leaf

18
Q

What is translocation

A

the movement of dissolved sugars from the leaves to the rest of the plant

19
Q

What is the Xylem

A

This is a plant tissue which transports water and mineral ions from the roots to the stems and leaves

20
Q

What is the Phloem

A

This is a plant tissue which transports dissolved sugars from the leaves to the rest of the plant

21
Q

What are the function of stomata

A

They control gas exchange and water loss

22
Q

Where are the most stomata found

A

On the lower surface on the leaf

yr10-11. Biology (7 decks)

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