Biology B1.1- Keeping healthy
- Created by: h.b22
- Created on: 11-11-15 13:38
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- B1.1
- Diet, Exercise & Inheritance
- A balanced diet includes everything a body needs to keep healty
- The eatwell plates helps with the portions of what you are supposed to be eating per day
- Different people needs different amounts of energy due to metabolic rate
- Metabolic rate refers to the chemical reaction in cells
- The more exercise you do the more food you need
- Minerals, Ions & Vitamins are needed to keep the body healthy
- Your metabolic rate can be affected by the genees yuo inherited
- Foods which are high in saturated fats increase high blood cholesterol
- People who exercise more are more halthy
- If you are overweight it can lead to diabetes
- It is unhealthy as well to be underweight
- A balanced diet includes everything a body needs to keep healty
- Pathogens & Defence Mechanisms
- Pathogens cause infectious diseases
- Pathogens are tiny microorganisms- usually viruses or bacteria
- When Viruses / Bacteria enter he body it reproduces rapidly They can make you feel ill by producing toxins.
- Viruses reproduce inside cells and damage them
- Washing hands removes pathogens
- Skin prevents pathogens entering the body
- Pathogens are trapped by mucus and killed by stomach acid
- White blood cells are part of our immune system
- 1) This is what white blood cells do They can ingest pathogens. This means digest / destroy
- 2) They produces antibodies to help destroy the pathogens
- 3) They produce antitoxins to counteract the toxins that pathogens produce
- 2) They produces antibodies to help destroy the pathogens
- Diet, Exercise & Inheritance
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