biology topic one

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the maintenance of conditions are regulated in your internal environment
homeostasis
1 of 61
a change in the environment
stimulus
2 of 61
detects a stimulus
receptor
3 of 61
carry out the actual response
effector
4 of 61
all the neurones in your body, with the CNS and the spine
the nervous system
5 of 61
the connection between 2 neurones
synapse
6 of 61
fast, automatic responses which bypass the conscious brain
reflex
7 of 61
carry info to to receptor to CNS (type of neurone)
sensory neurone
8 of 61
carry info from sensory neurone to motor neurone
relay neurone
9 of 61
carry impulses from CNS to effectors
motor neurone
10 of 61
time taken to respond to a stimulus
reaction time
11 of 61
outer wrinkly layer of the brain which controls memory, intelligence and consciousness
cerebal cortex
12 of 61
found at back of brain and is responsible for muscle co-ordination (stars with c)
cerebellum
13 of 61
at the base of the brain and controls unconscious things like breathing
medulla
14 of 61
in the eye, the transparent outer layer found at front of eye. it bends light into the eye
cornea
15 of 61
in eye, contains mucles that allow it to control diameter of pupil therefore how much light enters the eye
iris
16 of 61
the eye, the tough supporting wall of the eye
scelera
17 of 61
the eye, the layer at the back of the eye which forms an image and sends it to the brain to allow you to see
retina
18 of 61
the eye, focuses light onto the retina
lens
19 of 61
the eye, the hole in the centre of the eye, through which light enters
pupil
20 of 61
the eye, carries impulses from the receptors on the retina to the brain
optic nerve
21 of 61
the ability to look at near and distant objects
accomadation
22 of 61
when looking at_____objects, ciliary muscles cotract and suspensory ligaments relax. lens becomes fatter which increases the amount by which t refracts light
near
23 of 61
when looking at ____distant objects, the ciliary muscles relax and the supensory ligaments tighten. this makes lens go thin so refracts light by a smaller amount
distant
24 of 61
another word for long sightedness (people who cant focus on near objects)
hyperopia
25 of 61
to correct long sightedness a _____lens should be used.
convex
26 of 61
long sightedness is caused when lens is wrong shape or eyeball is too...
short
27 of 61
another word for short sightedness is called...
myopia
28 of 61
to correct short sightedness a ______lens should be used
concave
29 of 61
short sightedness is caused when the lens is the wrong shape or the eyeball is too...
long
30 of 61
thin lenses that sit on the surface of the eye
contact lenses
31 of 61
a laser is used to vaporise tissue changing the shape of the cornea
laser eye surgery
32 of 61
a natural lens is removed and an artificial one is replaced
replacement lens surgery
33 of 61
the part of your brain which acts as a temperature keeper
thermoregularity centre
34 of 61
chemical molecules releases directly into the bloodstream
hormones
35 of 61
hormones are produced and secreted by various glands, called endocrine glands
the endocrine system
36 of 61
produces many hormones and is known as the "master gland"
pituitary gland
37 of 61
produces insulin, used to regulate blood sugar levels
pancreas
38 of 61
produces thyroxine, which is involved in things such as metabolism, heart rate and temp
the thyroid
39 of 61
produce adrenaline, which prepares body for fight or flight
adrenal glands
40 of 61
produces oestrogen which is involved in the menstrul cycle
ovaries
41 of 61
produces testorone, which controls sperm production and puberty
testes
42 of 61
a hormone produced by the pancreas and reduces blood sugar levels by getting the liver to store glucose as glycogen
insulin
43 of 61
a stored form of glucose
glycogen
44 of 61
a hormone which converts glycogen back to glucose. this is done by the liver
glycagon
45 of 61
makes urine from excess water,ions and urea
kidneys
46 of 61
a hormone which causes the absorption of the kidney tubules to change.the more of this hormone released, the more permeable the tubes become
ADH
47 of 61
machines which clean the blood when kidneys have failed
dialysis
48 of 61
another way to fix a kidney failure apart from dialysis (starts with t)
transplant
49 of 61
hormone in menstral cycle which which causes an egg to mature
FSH
50 of 61
hormone in menstral cycle which stimulates release of egg at ovulation
LH
51 of 61
maintains lining of uterus during cycle and inhibits making of fsh/lh
progesterone
52 of 61
causes uterus lining to grow and stimulates lh release
oestrogen
53 of 61
a baby made without having sexual intercourse
IVF
54 of 61
a plant hormone which promotes growth in shoots and roots
auxin
55 of 61
growth of plant in response to light
phototropism
56 of 61
growth of shoots in response to gravity
gravitropism
57 of 61
hormone which can cause plants to grow from cuttings
rooting powder
58 of 61
grow clones from a plant by only using a few of its cells
tissue culture
59 of 61
hormone which stimulates seed germination, growth and flowering
gibberellins
60 of 61
gas which can stimulate enzymes to cause fruit to ripen
ethene
61 of 61

Other cards in this set

Card 2

Front

a change in the environment

Back

stimulus

Card 3

Front

detects a stimulus

Back

Preview of the front of card 3

Card 4

Front

carry out the actual response

Back

Preview of the front of card 4

Card 5

Front

all the neurones in your body, with the CNS and the spine

Back

Preview of the front of card 5
View more cards

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