Flashcards
Responding to change
Flashcards do conjunto (34)
- 1Define Homeostasis?Maintaining a stable internal environment.
Maintaining the right conditions within your body - 2Define Osmoregulation?The regulation of water content internally
- 3Define Thermoregulation?The Regulation of your body temperature
- 4What is the Hypothalamus?A party of the brain
- 5What does the Hypothalamus do?controls the body temperature, contains receptors that are sensitive to blood temperature in the brain.
- 6Define Negative feedback?a mechanism the helps you keep osmo/thermoregulation steady
- 7Define hormones?Slow chemical messengers produced by glands that travel though the blood but only effect particular cells
- 8Define Nerves?strings of neurones, hat carry fast electrical impulses
- 9what is a Neurone?A neuron is a nerve cell that carries electrical impulses around the body
- 10What does the myelin sheath do?insulates the neurone to protect the electrical impulses, it also speeds them up
- 11Name the gap between two neurones?The synapse
- 12How does the impulse travel over the synapse?the impulse is transmitted using chemicals to cross the gap. these chemicals stimulate a new impulse
- 13What chemicals are released at the synapse?neurotransmitters
- 14Name the 5 sense organs?Eyes, Ears, Nose, Tongue, Skin
- 15The Central nervous system does what?coordinates a response
- 16Muscles and glands are known as?Effectors, they respond to nervous impulses
- 17Define a reflex?Reflexes are automatic responses to certain stimuli to help prevent injury
- 18reflex arcstimulis, receptors, sensory neurons, relay neuron in CNS, motor neuron, effector (muscle), response
- 19what are Insulin and GlucagonHormones
- 20insulin is added when?Blood glucose levels are too high
- 21Glucagon is added when?Blood glucose levels are too low
- 22Where is insulin created?pancreas
- 23where is glucose stored?liver
- 24what does insulin do?Insulin makes liver turn glucose in to glycogen
- 25what does Glucagon do?Glucagon makes the liver turn glycogen into glucose
- 26Define Type 1 diabetesThe lack of insulin
- 27Define Type 2 Diabetesresistance to insulin
- 28Define Tropisma plants growth response
- 29Define phototropsimthe growth of a plant in response to light
- 30Define positive phototropismgrowth towards light
- 31Define Gravi/Geotropismthe growth of a plant in response to gravity
- 32Define Positive Gravi/Geotropismgrowth downwards
- 33What are Auxins?Hormones that stimulate growth at the tips of plants
- 34what is Gibberellin?A pant hormone the stimulate plant growth at the stem
Informações
- Descrição
- B1 - Topic 2
- Criado por
- Sariuo · jan 2014
- Atualizado
- 24 dez 2016
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- 53
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