Animal Organisation

?
How many systems do humans have?
6
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What are the 6 systems in humans?
Skeletal, Nervous, Circulatory, Respiratory, Digestive and Muscular
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What is the job of the nervous system?
To detect and react to changes in environment
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How many food tests are there?
4 Food tests
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What do you use Benedict's test for?
Testing for simple sugars
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Benedict's test starts as a blue colouration, what colours does it turn?
Green followed by yellow to brick red
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What is the test used to test for Starch?
Iodine test
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In the iodine test what colour will the indicator turn if starch is present?
Blue/Black colouration means starch is present
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Sudan III is a food test for what?
Lipids (fats)
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What colour will the Biuret testing solution turn if protein is present?
Violet
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What food test do you use to detect proteins?
Biuret test
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The lungs are protected by...
The rib cage
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What happens at the alveoli?
Gaseous exchange
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Gas exchange needs to happen quickly, how many cells thick are the capillaries?
1 cell thick
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Alveoli have a large, spread out surface area, why is this a good thing?
Gaseous exchange can happen quicker
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Oxygen moves the air from inside the lungs into the blood by the process of...
Diffusion
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What side of the heart carries Oxygenated blood?
Left side
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What is the main job of the valves in the heart?
To prevent a backflow of blood
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What type of circulatory system do humans have?
Double, Enclosed
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Do veins or arteries carry blood away from the heart?
Arteries
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What is the job of plasma and what colour is it?
Plasma transports substances to and from cells, Pale yellow colouration
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What do red blood cells float in?
Plasma
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What do the platelets help with?
Clotting blood, with the help of Plasma
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Red blood cells carry oxygen around the body attached to what?
Haemoglobin
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What is haemoglobin?
The stuff that makes our blood look red
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What happens when blood passes through the capillaries?
The blood becomes de-oxygentated
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Blood clotting in blood vessels can be dangerous what can prevent this from happening?
Anti-coagulant drugs
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clotted blood at he wound prevents.....
further blood loss and reduces the risk of pathogens entering
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Eating saturated fats, a lot of salt and not eating enough fibre can cause what disease?
Heart Disease
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What is a disease?
An abnormal condition of an organism which impairs its function and is accompanied with a set of signs and symptoms
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Do you normally get cancer in.... Old-age, childhood or Middle-age
All 3
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How does cancer develop?
When cells divide out of control
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Are the causes of cancer preventable?
Yes, some symptoms are genetic though and cant be prevented
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When cancer spreads to different parts of the body it is called....
Metastisis
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How does the cancer spread elsewhere?
In the bood and lymph
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Are certain types of cancer are genetic?
Yes
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If you have a career in radiology, pilots and/or aircrew your more at risk to developing what?
Cancers
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Having a cough for more than 3 weeks and being short of breath is a sign of what?
Lung cancer
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What type of tumour doesn't spread and normally can be removed?
Benign Tumour
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True or False Severe physical health can lead to depression and other mental illness
True
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Viruses living in cells can be the trigger for...
Cancers
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Why do cancer patients that under go chemotherapy experience hair loss?
Chemotherapy alongside radiotherapy targets the rapidly dividing cells. Cancer divides out of control so they are targeted, but due to the hair follicles, skin cells, the lining of the digestive system and blood cells are accidentally targeted
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cancerous cells can destroy other normal cells around them, this is how tumours develop. Cancerous cells form due to damaged what?
Damaged DNA, this can be damaged by smoking, the sun, chemicals, lack of healthy diet or exercise.
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Other cards in this set

Card 2

Front

Skeletal, Nervous, Circulatory, Respiratory, Digestive and Muscular

Back

What are the 6 systems in humans?

Card 3

Front

To detect and react to changes in environment

Back

Preview of the back of card 3

Card 4

Front

4 Food tests

Back

Preview of the back of card 4

Card 5

Front

Testing for simple sugars

Back

Preview of the back of card 5
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