Please enable JavaScript.
Coggle requires JavaScript to display documents.
B1 (1) (Diet and Energy (Diet and Metabolic rate (Balanced Diet…
B1 (1)
Diet and Energy
Diet and Metabolic rate
Balanced Diet (Carbohydrates, fats, protein, vitamins, mineral ions)
-
To lose body fat people go on a slimming diet and exercise(this means more energy is taken out than coming in)
-
The greater proportion from fat to muscle, the higher the metabolic rate
-
-
Diet, Exercise and Health
-
Good(high density), Bad(low-density)
Fighting Infection
Phagocytosis
-
-
3- The bacterium is now enclosed in a vacuole inside the cell. It is then killed and digested by enzymes
-
Lymphocytes
-
The antibodies group round and stick to the pathogen which kills it directly or stick it too other pathogens so the phagocytes can kill them
Drugs against Disease
Antibiotics
Drugs that kill bacteria inside your body, without killing your own cell
-
To find the best antibiotics, bacteria is spread onto jelly, paper discs soaked in different antibiotics are placed on the jelly an the antibiotics diffuse out. If the antibiotic kills the bacteria, they do not grow around the disc
-
Antibiotic Resistance
Reducing the Risk
-
-
To reduce the chance of resistance, we need to reduce antibiotic use
In a group of bacteria, one may be immune to the antibiotic due to mutation, if the antibiotic kills the other bacteria, the mutated one has no competitors and reproduces
MRSA death
-
Deaths rose between 193 and 2006, bu it is now decreasing because people know about it
Vaccination
MMR
In the UK, children have MMR vaccinations for measles, mumps and rubella
Small or inactive viruses that cause the disease is injected into the blood so white blood cells can attack them and remember how to make antibodies for that viruse. The body will remember how to make these antibodies
-
-
Co-ordination, Nerves and Hormones
-
Response Duration
A nervous response is fast and short-lived because impulses travelling along nerves only take a short time
Where a longer-term response is need, hormones are a more appropriate method of communications
Receptors
Neurones
A Sensory Neurone
-
A Motor Neurone
-
-
Pathogens and Infections
Disease
-
-
-
-
-
Semmelweis
-
Used evidence from the death rates of woman to work out they were dying because docters were transferring bacteria from dead bodies