biology
- Created by: RIDGWAY Tiomi
- Created on: 02-01-18 15:54
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- Biology revison
- Homeostasis
- Its a controlling internal conditions.
- Needs to be removed.
- urea
- Carbon dioxide
- Needs controlling
- Temperature
- body temperature is controlled by the thermo
- regulatory centre in the brain.
- Kept at 37`c
- Best temperature for enzymes
- Kept at 37`c
- regulatory centre in the brain.
- body temperature is controlled by the thermo
- Ion content
- Water content
- The lungs
- When we exhale
- The skin
- When we sweating
- The body
- In urine produced by the kidneys
- The lungs
- Blood glucose
- Provide cells with constant supply of glucose for respiration
- The lungs
- When we exhale
- The lungs
- Provide cells with constant supply of glucose for respiration
- Temperature
- Reflexes
- Actions are automatic and rapid
- Receptor detects a stimulus
- change in the environment
- sensory neurone
- sends signal to relay neurone
- motor neurone
- sends signal to effector
- Effector
- produces a response
- The endocrine system
- Hormes
- Composed of glands that secrete chemicals
- Called hormones directly into the blood stream.
- where are they in the body?
- Head downwards
- Composed of glands that secrete chemicals
- The pituitary glands
- The master gland
- several hormones into the blood in response to body conditions
- Controls growth in children
- The master gland
- Pancreas
- Controls the levels of glucose in the blood
- Produces insulin and glucogon
- glucagon intracts with insuiln
- Thyroid gland
- Controls the metabolic rate of the body
- Hormes
- Diabetes
- Type 1
- Where the blood glucose may rise to a high levels
- The pancreas doesn't secrete enough insulin
- How its treated
- Injection
- Replace the hormones that is not often made in the body
- Injection
- Who it effects
- Under 40s
- Type 2
- The body stops responding to its own insulin
- How its treated
- Carbohydrate
- controlled diet
- more exercise
- Who it effects
- Older people
- Type 1
- Homeostasis
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