Principles of Organisation Bile is made in the liver and stored in The Dige
the gall bladder. It is Carbohydrase breaks down carbohy
alkaline to neutralise hydrochloric acid
Organ Organis Amylase is a carbohydrase which br
Cells Tissues Organs from the stomach. It also emulsifies fat
Systems ms to form small droplets which increases
the surface area. The alkaline conditions
Proteases break down proteins to a
and large surface area increase the rate
of fat breakdown by lipase. Lipases break down lipids (fats) to g
Examples of organs include the
heart, the lungs, the liver,
kidneys, the intestines and the
Food Tests
stomach. Examples of organ - Sugar: benedict's solution, heat until
systems include the respiratory
boiling in a water bath, blue to brick
system, circulatory system,
red
reproductive system and - Starch: iodine solution, orange to
digestive system.
blue/black
- Protein: biuret's reagent, blue to purple
- Lipids: add ethanol then water to
Organisatio sample, colourless to cloudy
The Heart and Blood n Heal
The heart is an organ that pumps blood around the body in a double circulatory system. The right
Vessels
ventricle pumps blood to the lungs where gas exchange takes place. The left ventricle pumps blood
around the rest of the body. The natural resting heart rate is controlled by a group of cells located in
Diseases, both communicable and non-communicable, are major causes of ill h
Other factors including diet, stress and life situations may have a profound effe
the right atrium that act as a pacemaker. Artificial pacemakers are electrical devices used to correct and mental health.
irregularities in the heart rate.
In coronary heart disease layers of Different types of disease may interact:
fatty material build up inside the • Defects in the immune system mean that an individual is more likely to suff
coronary arteries, narrowing diseases
them. This reduces the flow of • Viruses living in cells can be the trigger for cancers
blood through the coronary • Immune reactions initially caused by a pathogen can trigger allergies such
arteries, resulting in a lack of asthma
oxygen for the heart muscle. 1. Plasma- liquid that transports substances like hormones • Severe physical ill health can lead to depression and other mental illness
Stents are used to keep the
2. Platelets- form clots
coronary arteries open. Statins are
3. Red Blood Cells- transport oxygen
widely used to reduce blood
4. White Blood Cells- initiate an immune response
cholesterol levels which slows
down the rate of fatty material Biological/Mechanical valves replace faulty valves
deposit.
the gall bladder. It is Carbohydrase breaks down carbohy
alkaline to neutralise hydrochloric acid
Organ Organis Amylase is a carbohydrase which br
Cells Tissues Organs from the stomach. It also emulsifies fat
Systems ms to form small droplets which increases
the surface area. The alkaline conditions
Proteases break down proteins to a
and large surface area increase the rate
of fat breakdown by lipase. Lipases break down lipids (fats) to g
Examples of organs include the
heart, the lungs, the liver,
kidneys, the intestines and the
Food Tests
stomach. Examples of organ - Sugar: benedict's solution, heat until
systems include the respiratory
boiling in a water bath, blue to brick
system, circulatory system,
red
reproductive system and - Starch: iodine solution, orange to
digestive system.
blue/black
- Protein: biuret's reagent, blue to purple
- Lipids: add ethanol then water to
Organisatio sample, colourless to cloudy
The Heart and Blood n Heal
The heart is an organ that pumps blood around the body in a double circulatory system. The right
Vessels
ventricle pumps blood to the lungs where gas exchange takes place. The left ventricle pumps blood
around the rest of the body. The natural resting heart rate is controlled by a group of cells located in
Diseases, both communicable and non-communicable, are major causes of ill h
Other factors including diet, stress and life situations may have a profound effe
the right atrium that act as a pacemaker. Artificial pacemakers are electrical devices used to correct and mental health.
irregularities in the heart rate.
In coronary heart disease layers of Different types of disease may interact:
fatty material build up inside the • Defects in the immune system mean that an individual is more likely to suff
coronary arteries, narrowing diseases
them. This reduces the flow of • Viruses living in cells can be the trigger for cancers
blood through the coronary • Immune reactions initially caused by a pathogen can trigger allergies such
arteries, resulting in a lack of asthma
oxygen for the heart muscle. 1. Plasma- liquid that transports substances like hormones • Severe physical ill health can lead to depression and other mental illness
Stents are used to keep the
2. Platelets- form clots
coronary arteries open. Statins are
3. Red Blood Cells- transport oxygen
widely used to reduce blood
4. White Blood Cells- initiate an immune response
cholesterol levels which slows
down the rate of fatty material Biological/Mechanical valves replace faulty valves
deposit.
