stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
GCSE biology unit 1 Flashcards | StudBud
Explore
/
GCSE biology unit 1
GCSE biology unit 1
33 terms
·
StudBud Administration
·
574 plays
#diet and exercise #infectious diseases #nervous system #human body #plants #genetics #decay
Flashcards
33 cards
F
Practice quiz
P
Host live
L
Questions
33
Answers
1
what chemicals substance coordinates processes in the body?
insulin
hormones
water
blood
2
who recognised the importance of washing your hands?
Charles darwin
Robert hooke
mendelev
semmelweis
3
combustion of wood and fossil fuels releases ? into the atmosphere
carbon dioxide
nitrogen
carbon peroxide
carbon monoxide
4
what does GM stand for ?
gene modified
gamete modified
genetically modified
5
plant hormones are used in agriculture and horticulture as
culture medium
weed killers
growing medium
rooting hormones
6
what is the metabolic rate?
the rate at which you digest food
the rate at which something cools down
the rate at which chemical reactions occur in cells
7
what happens to the amounts of energy and material at each successive stage ?
it increases
it decreases
it stays the same
8
genes are passed by sex cells called
gametes
genetes
palisade cells
gumetes
9
information from receptors passes along nerves to the ....
brain
effector muscle
affected area
10
types of drugs are ...
stimulates, depressants and hallucinagins
recreational, medicinal
illegal , non illegal
11
what effects your metabolic rate
height
the amount of activity you do
IQ
proportion of muscle to fat
12
what internal conditions are controlled in the body
temperature
blood sugar levels
water content
ion content
13
bacteria and viruses can..
make you sneeze more
reproduce rapidly
make you feel ill
produce poisons
14
what temperature should cultures be incubated at in schools
maximum 35 degrees
maximum 25 degrees
15 degrees
30 degrees
15
what is a healthy diet?
no salt or fats
equal amounts of each food group
the right balance of all the food groups
all vegetables
16
the misuse of recreational drugs can cause problems in the...
respiratory system
muscles
circulatory system
heart
17
plants are sensitive to what?
moisture
gravity
heat
light
18
white blood cells defend against pathogens by...
producing antitoxins
producing antibodies
releasing an acid
ingesting pathogens
19
what is a synapse
a layer of tissue around the brain
how we sense thing around us
a gap between the sensory neurone and spinal chord
a gap between neurones
20
what are proteins used for in the body?
release energy
growth and repair
build up cells
healthy skin
21
the first birth control pills contained a lot of what....
LH
progesterone
oestrogen
FSH
22
thalidomide was developed as a sleeping pill, however it is now used to treat ....
limb abnormalities
leprosy
morning sickness
scurvy
23
auxin controls...
phototropism
chlorotropism
geotropism
thermotropism
24
what can an unbalanced diet do to someone ?
deficiency diseases
overweight or underweight
25
what source does most of the energy come from for most living organisms
water
thermal radiation
sun
food
26
what is biomass?
the amount of matter in an organism
the mass of an organism
the mass of every specifc organism added together
the mass of living material at each trophic level
27
mineral ions and vitamin do what in the body?
makes skin healthier
help healthy body functions(needed in small amounts)
aids digestion
28
in what order do neurones work ?
sensory, motor then relay
relay , motor then sensory
motor, relay then sensory
sensory, relay then motor
29
receptors detect...
stimuli
changes in the environment
neurones
light and sound
30
definition of malnourished?
diet is not balanced
if someone is under eating
31
what are the two types of reproduction ?
asexual, sexual
gametes
32
materials decay because...
large animals excrete them so they soak into the soil
they just do
they digested by microorganims
they are broken down
33
what are pathogens
microganisms that prevent diease
microrganisms that cause disease
