biology Flashcards
what are carbohydrates for
energy
what is fat used for
energy and insulation
what is protein for
growth and repair
eating too many high energy foods causes what
type 2 diabetes
what is type 2 diabetes
when someone cannot control their level of sugar in their blood
what is the metabolic rate
the rate at which chemical reactions are carried out in the cells
what are receptors
cells that detect stimuli
what is a nerve impulse
an electrical message that passes along a neurone
what is a neurone
a nerve cell
what is the central nervous system
the brain and spinal cord
what are sensory neurones
a nerve cell that transmits nerve impulses to the central nervous system
what is an effector
a muscle that carries out the responce
what is a synapse
the junction between nerve cells
what is a motor neurone
a nerve that caries an impulse from the central nervous system to the effector
what is a reflex action
automatic and rapid actions not controlled by the brain
what do antibiotics kill
bacteria
what do phagocytes do
engulf the pathogen
what do antitoxins do
counteract the poisons released by pathogens
what do the arrows in a food chain represent
the flow of energy in the food chain
what’s another name for the organism at the first trophic level
producer
where do plants grow towards
light and against gravity
whats the feature in the double blind trial
the doctor and the patient doesnt know if the drug is real
what do stimulants do in the body
increase the heart rate
whats the advantage of using rooting powder
the plants grow quicker and in a bigger quantity
