Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biology flash cards > bio year 10 > Flashcards

bio year 10 Flashcards

1
Q

ecosystem

A

all living organisms in an area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

community

A

organisms within an ecosystem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

habitat

A

area where living organisms live in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

producers

A

make their own food using photosynthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

consumers

A

all animals
can’t make food for themselves
have to eat other animals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

decomposers

A

gain energy by feeding on dead

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

biomass

A

mass of living material present

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

biotic

A

living factors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

abiotic

A

non living factors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

abiotic factors effecting the community include:

A

light intensity (degrees celsius)
temperature (lux)
moisture level %
soil pH (no units )

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

efficiency of biomass transfer

A

biomass after
———————. x 100
biomass before

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

biomass lost by

A

cellular respiration
urine
egestion
excretion
not all of the organism might be eaten

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

denitirfying bacteria

A

gives out nitrogen gas by converting nitrate and nitrite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

nitrifying bacteria

A

converts ammonia into nitrate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

nitrogen fixing bacteria

A

supply plant with vital nutrients

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

carbon removed from atmosphere by

A

photosynthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

carbon released into surroundings by

A

respiration
decomposition
burning fossil fuels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

decomposition factors

A

warm temp
moist environment
aerobic conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

rate of decay

A

change in mass
_________________

time (day)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

maintaining internal environment

A

homeostasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

normal body temp

A

37

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what happens when you get hot

A

vasodilation
body hairs lower
sweating
blood vessels widen near skin increasing heat being lost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what happens when you get cold

A

vasoconstriction
don’t sweat
hair sticks up which traps a layer of air close to skin
shivering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

when blood sugar levels are high what hormone is released

A

insulin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what hormone is released when blood sugar levels are low
glucagon
26
what is glycogen and where is it stored
glycogen is extra glucose stored in liver
27
Type 1 diabetes
- cannot produce insulin - childhood - balanced diet and exercise - insulin injections
28
Type 2 diabetes
- cannot effectively use insulin - later in life - obesity - regulating carbohydrate intake - exercise - lose weight
29
How is urine produced
- small molecules pass into tubes in kidney (filtration) - kidney will put back any useful substance (selective reabsorption)
30
where is urine produced
in nephrons
31
water potential hormone
ADH anti-diuretic hormone
32
glomerulus
knot of capillaries filtration
33
nervous system vs endocrine system
nervous system - nerve impulses - short effect -fast speed - precise area endocrine system - hormones - slower - blood - larger area - longer acting
34
negative feedback definition
when conditions change from the ideal or set point and returns conditions to this set point, there is a continuous cycle of events in negative feedback.
35
what is thyroxine and how it’s controlled
thyroxine controls metabolic rate thyroid gland TSH hormones stimulates the thyroid gland to release thyroxine
36
what is adrenaline and how it’s controlled
adrenal glands ‘fight or flight’ response You start to: - respire quickly - increase rate of breathing and heart - blood focused around muscles
37
FSH
follicle stimulating hormone released by pituitary gland causes an egg to mature stimulates oestrogen production
38
OESTROGEN
causes uterus lining to build up released by ovaries inhibit FSH (prevents more then one egg maturing ) stimulates LH
39
LH
luteinising triggers ovulation 14th day
40
PROGESTRONE
Maintains uterus lining inhibits LH
41
non hormonal contraceptives
barrier methods (order of effectiveness) condom diaphragm intrauterine device
42
hormonal contraception
oestrogen and progesterone pill progesterone pil
43
infertility causes
blocked ducts not enough sprm lack of mature eggs failure of eggs to be released
44
IVF
in vitro fertilisation collecting eggs and fertilising with sperm outside body unnatural expensive multiple births
45
plant hormone that enables growth towards stimulus
auxin
46
phototropism
growing towards the light
47
gravitropism
same direction and gravity
48
plants responding to light
auxins build up in the shaded side of the plant
49
plants respond to gravity by
uneven auxin distribution
50
Ethene
- causes fruit to ripen - fruit taste sweeter - exists as a gas
51
Giberellins fuction
promote growth end dormancy of seeds and buds
52
other auxin functions
weed killer (weeds grow fast) promoting root growth delay ripening produce seedless fruit controlling dormancy
53
artery features
thick outer wall thick layer of muscle small lumen high pressure
54
vein features
thin outer wall thick muscle large lumen smooth lining valves that stop blood following in wrong direction
55
capillary features
very small lumen single layer of cells semipermeable walls
56
order blood travels in heart
pulmonary artery (right atrium) lungs pulmonary veins (left atrium) aorta (left atrium) body vena cava (right ventricle)
57
what is in blood
plasma red blood cells white blood cells platelets
58
translocation
phloem transporting sugars and soluble food molecules made of living cells any direction flow has sieve plates
59
transpiration
xylem transports water and mineral ions made up of dead cells one way direction (up) no sieve plate thick walls
60
what structure do xylem and phloem tissues form
vascular bundles
61
what do vascular bundles do
in leaf support leaf tissue in the stem they provide strength in the root found in centre as an anchor
62
transpiration stream
water moves into roots via osmosis water moves up stem moves into leaves to replace water loss from evaporation and open stomata
63
Factors affecting transpiration
light intensity /- temperature / air movement /- humidity \
64
measuring rate of transpiration formula
rate of movement= distance (mm) / time (s)

Biology flash cards (35 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions