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42 Cards in this Set

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Plasma

Transports things like CO2 from organs to the lungs, soluble products of digestion and the 3 other components of blood

Red Blood Cells

Bioconcave


No nucleus


Contains haemoglobin


Carry oxygen

White Blood Cells

They form antibodies which engulf and produce antitoxins to kill the pathogens

Platelets

Broken pieces of Red Blood Cells


Help the blood clot


Fibrinogen changes into fibrin which clots the blood to form scabs

What is this?

Artery


Small Lumen , Thick layer of muscle + elastic fibres, thick wall


Carry the blood away from the heart


High pressure


Muscles give strength and elastic fibres give it a high pressure as they spring back


What is this?

Vein


Large lumen, valves, thin walls


Carry blood towards the heart


Heart valves prevent back flow


Low pressure


Large linen helps blood flow

What is this?

Capillary


Single Cell thick walls, tiny vessel and barrow lumen


Carry blood through organs


Permeable walls to speed up diffusion


Supply food and CO2 and get rid of waste i.e O2

Label the height?

Vena Cava - Deoxygenated blood from around body goes into the heart


Pulmonary Artery - Deoxygenated blood to the lungs


Aorta - Oxygenated blood to the rest of the body


Pulmonary vein - oxygenated blood from the lungs goes into the heart


Valves -Prevent the back flow of blood


Left is right, right is left


Top right, left atrium


Top left, right Atrium


Bottom right, left ventricle


Bottom left, right ventricle

Label the heart

Vena Cava - DeO2 blood from around body - heart


Pulmonary Artery - DeO2 blood to the lungs


Aorta - O2 blood to the rest of the body


Pulmonary vein - O2 blood from the lungs - heart


Left is right, right is left


Atrium and Ventricle

Double circulation

Whether to transport system is pumping blood


1) blood from heart to lungs and back again


2) blood from heart rest of the body and back

Coronary heart disease

The heart gets oxygenated blood from the coronary arteries


Coronary heart disease happens when the arteries get blocked due to fatty material building up

Coronary heart disease

The heart gets oxygenated blood from the coronary arteries


Coronary heart disease happens when the arteries get blocked due to fatty material building up

Stents

Metronet which open up the arteries to allow blood to go through


Done via open-heart procedure. Balloons blown over thin metal net which sticks it to the walls


It stops the problem before it gets worse

Statins

Prescribe to the patient


Pills that lower cholesterol


This means that it reduces the fatty deposits in the arteries

Animal valves

Sometimes patients have a leaky valves, this means that blood flows in the wrong direction causing a heart attack


Doctors can use animal valves instead.


Requires an open heart procedure


May go against some religions, such as Islam who can’t eat pigs

Artificial pacemaker

A pacemaker keeps the beat of the heart. The normal resting beat is 70bpm.


Artificial pacemaker is electricity can be fitted


They don’t last that long and it’s a malfunction take place the person made life

Temporary hearts

This can be either animal hearts or artificial electrical hearts


These are good because they keep the patient alive while waiting for a heart transplant.


However, the patient has to be on drugs to stop the blood from clotting.

Ventilation

Moving air in and out

Trachea

Rigid tube made out of Cartilage

Lungs

Spongy organs that filled with air when we inhale


Situated in the thorax (the top half of the body.)

Lungs

Spongy organs that filled with air when we inhale


Situated in the thorax (the top half of the body.)

Alveoli

Where gas exchange takes place, bronchioles carry air to them. They are surrounded by capillaries

What does this show?

Gas exchange:


1) Oxygen diffuses into the blood in the capillaries via the alveoli


2) Carbon dioxide diffuses out of the blood


3) Air is continuously moving in and out of the alveoli

Adaptations of the alveoli

- large surface area (big storage)


- thin walls (shorter storage path)


- good blood supply via the capillaries


- steep concentration gradient


- smile diffusion of oxygen and carbon dioxide

Breathing in

1) Intercostal muscles between ribs, contract, moving the rob cage up and out


2) Diaphragm muscles contract and the diaphragm flattens.


3) Volume of chest and thorax increases


4) Low pressure as air is drawn into the lungs

Breathing out

1) intercostal muscles between the ribs, relax, moving the rib cage down and in


2) The muscles of the diaphragm relax and the diaphragm becomes domes


3) Volume of the thorax and chest decreases


4) Pressure increases as air is forced out of the lungs

Epidermis tissue

Covers the plant

Plant Tissue

Palisade Mesophyll

Many chloroplasts which contain chlorophyll which are important have photosynthesis

Plant Tissue

Spongy Mesophyll

Air spaces to all gases to pass through


Large surface area for diffusion of gases


Plant Tissues

Xylem

Transports water and dissolved minerals to the rest of the plants


Water needed for Photosynthesis


Water needed to support the cells, especially young plants and leaves

Plant Tissues

Phloem

Transports dissolves food substances from the leaves to the rest of the plant


Sugar needed for all cells


Sugar needed for growth

Plant Tissue

Plant organs

Stems, Roots and Leaves

Meristems

Found in the roots and shoots

Leaves Water Loss

1) Soil absorbers water and passes it up the plant to the leaves


2) In the leaves the air spaces mean that water vapour is lost. This is called transpiration.


3) This can be stopped by the the guard cells by closing the stomata.


Factors affecting the rates of Transpiration

Temperature


Humidity


Air flow -


Light Intensity

Temperature

As Temp increases molecules move faster which increases evaporation


But as temp increases the rate of photosynthesis also increases

Humidity

Diffusion of water is faster in dryer air

Air flow

Wind flow increases the rate of evaporation, as it keeps a steep concentration gradient and blows away the water vapour

Light Intensity

More light = more photosynthesis = more stomata holes open = more evaporation

What does this show?

This shows a potometer. A potometer show the water uptake of a plant under different conditions

What does this show?

This shows a potometer. A potometer show the water uptake of a plant under different conditions

How can plants control water loss

- plants have a waxy, Waterproof cuticle


- most of the stomata our on the underside of the leaf


- wilting can reduce water loss, the leaves hand down decreasing the surface area


- the stomata close to reduce water loss