biology

1. which processes are characteristics of all living organisms?
1 digestion
2 respiration
3 excretion
a 1,2and3 b 1 only c 2and3only d 2only

2 using the binomial system, the arctic fox is called vulpes lagopus.
which row is correct?
[| pes | tears
a genus kingdom
b genus species
cc species genus
d species kingdom

3 the diagrams show four different types of arthropod.
which organism is labelled with its correct arthropod group?
a b cc d
nls ww peel as
nn yy "s yy n ez, sss sd,
ns ee me aa onn er (7 oe,
ss oe, t os ake y) ‘ fh ening 1 y ( ee
vc uc & fers | y ff wetg q & i: ce
= \ ue be ae j boh (5 =
ks kd aa
cr ty way
crustacean insect myriapod arachnid

4 which features are possessed by all plant cells?
[acatwat | cers |
a v v key
b v x v=yes
cc x v x =no
d x x

5 the diameter of an egg is 6.5cm. a student draws the egg. the diameter of the egg in the
drawing is 19.5cm.
what is the magnification of the drawing?
a x0.3 b_ x3.0 cc x6.5 d x300

6 the diagram shows an experiment to investigate osmosis in living cells.
water
potato
glass dish
concentrated
sugar solution
what happens to the volumes of water and sugar solution after 12 hours?
volume of
volume of water 7
sugar solution
a decreases increases
b increases increases
cc increases remains the same
d remains the same decreases

7 which process causes oxygen to pass from an alveolus in the lung into a blood capillary?
a assimilation
b diffusion
c_ excretion
d_ osmosis

8 which row identifies the chemical elements in proteins?
[eben [ mreroven [onsen [riveaen
a v jv jv jv key
b v x v x v = present
cc x v v v x = absent
d v v x x

9 the table shows some large biological molecules and some small biological molecules.
large biological small biological
molecules molecules
1 cellulose glucose
2 oil amino acids
3 glycogen glucose
4 protein ethanol
which rows correctly pair large molecules with the smaller molecules used to make them?
a iand2 b 1and3 c 2and3 d 3and4

10 which changes could cause an enzyme to denature?
1 change in ph
2 change in temperature
3. change in substrate concentration
a 1,2and3 b 1and2only c 1and3only d = 2and3only

11 which features of a leaf allow more diffusion of carbon dioxide into the palisade cells for
photosynthesis?
number of thickness
stomata of the leaf
a few thick
b few thin
cc many thick
d many thin

12 the diagram shows a cell with groups of bacteria around its edge.
“sy cell cytoplasm
spiral-shaped ry
chloroplast — 3

# ee bacteria
the bacteria have moved to areas of high oxygen concentration.
which process in the cell causes the bacteria to form these groups?
a digestion
b photosynthesis
c_sreproduction
d respiration

13 the diagram shows the teeth in the lower jaw of a human.
which tooth is a premolar?
b
c
a cular
£) c)
fs 2
cy ne

14 some medicines are made into tablets which are coated in a starch-like substance.
the coating protects the medicine from the effects of gastric juice.
which enzyme digests the coating and what is produced by this action?
p| ename [rete |
a amylase fatty acids and glycerol
b amylase simple reducing sugars
cc lipase fatty acids and glycerol
d lipase simple reducing sugars

15 in which part of the alimentary canal are most nutrients absorbed into the blood?
a colon
b oesophagus
c small intestine
d_ stomach

16 from which part of a leaf does most water evaporate during transpiration?
a the cuticle
b_ the guard cells
c_ the spongy mesophyll cells
d_ the xylem vessels

17 the photograph shows a cross-section through a sunflower stem.
pias oe = ee & pecan eee
peo beg srr pr a le ie ss ne,
ye se
(ot ee bee pauauementat eg ia sek soe eee.
¢ a has oo ee ag
fo eos oes or ee
oo pr oss gs a oe
fp re ee so nia oc be
fig seta regne tes. coe |
ss oe a
| hs ee eeeeegttnenensbecn: 0 pees
be esate aon ten pe
be ee ts do i sa cc eae
| ae eereempermeenecr cn
pk as ee
re rah et late ee q
[i ee pak gamisteasotecates & 4
ur econ ena op ee mmei ne agira greeters: soc steve
4a . ee
yo i be oy
se oe ae. he ak ee eo ao as oe >
nee
pag oa
what is the name and function of the tissue labelled z?
| | name of tissue function of tissue
a phloem transport of mineral ions
b phloem transport of sucrose
c xylem transport of mineral ions
d xylem transport of sucrose

18 what ensures the one-way flow of blood in the human circulatory system?
a capillaries
b muscles
c_ valves
d_ ventricles

19 in which row is the component of blood correctly linked to its function?
[| bod component | tarcion |
a plasma transport of carbon dioxide
b platelets phagocytosis
cc red blood cells antibody production
d white blood cells blood clotting

20 which statement describes a transmissible disease?
a adisease caused when a pathogen passes from one host to another
b  adisease caused when a pathogen passes through a host’s body
c adisease caused when a pathogen passes to the host’s body only by direct contact
d  adisease caused when a pathogen passes to the host’s body only by indirect contact

21 what is the composition of expired air compared with inspired air?
[| carton diowte | oween | water vapour |
a decreased increased increased
b decreased decreased increased
cc increased decreased decreased
d increased decreased increased

22 the diagram shows the human breathing system.
cy)
gee = enn 2
7 / bog || 5d
3 yy wes ec ng
y na ae bee) \n
i) qe
i) cos \"
4 ener!
kk az wx )}}
"@ vi
yw "4
q 4]
what are the labelled structures?
ee ee
a bronchus bronchiole trachea
b bronchiole bronchus trachea
cc trachea bronchus bronchiole
d trachea diaphragm bronchus

23 yeast cells can convert glucose into alcohol and carbon dioxide.
which statement about this process is correct?
a_ the alcohol produced can be used to make bread rise.
b_ the carbon dioxide produced can be burnt as a biofuel.
c_ the yeast cells are using oxygen for this process.
d_ the yeast cells are carrying out anaerobic respiration.

24 in an experiment to investigate anaerobic respiration, two bottles are set up in a warm room, as
shown.
balloon balloon
q
(ae 4
sugar, yeast yeast
cc) and water and water
p q
what would happen to each balloon after one day?
a b
p q p q
cc d
p q p q

25 which row shows an organ and the substance it excretes?
=
excreted
a bladder water
b kidney ions
cc lung oxygen
d urethra urea

26 the diagram shows a reflex arc in a human nervous system. the person’s finger has just made
contact with a sharp object.
which part is the motor neurone?
a
a
= @
cc
b

27 which lines on the graphs show the effects of adrenaline on pupil diameter and heart rate?
ww '¥
pupil < heart <

diameter ‘ rate ‘

weeenenmmmnwan de weencnumenemantge
t time t time
adrenaline is released adrenaline is released
a wandy b wandz c xandy d xandz

28 which statements about tropisms in plants are correct?
1 shoots grow towards light and away from gravity.
2 shoots grow away from light and towards gravity.
3 roots grow towards light and away from gravity.
4 roots grow away from light and towards gravity.
a iand3 b 1and4 c 2and3 d 2and4

29 what is defined as a substance that is taken into the body and modifies or affects chemical
reactions in the body?
a_ antibody
b= drug
c hormone
d_ pathogen

30 which row is correct for asexual reproduction?
offspring compared
number of parents :
with parent or parents

a one genetically different
b one genetically identical
cc two genetically different
d two genetically identical

31 the diagram shows some stages in reproduction.
female structure m egg
which releases eggs cell os
p
male structure n sperm ee
which releases sperm cell
which letter correctly identifies the structure or process?
a mis the oviduct.
b_ nis the sperm duct.
c pis fertilisation.
d  qis the gamete.

32 the diagram shows half a flower.
which structure produces pollen?

a

b

cc

d

33 two parents have the genotypes bb and bb for a particular feature.
what is the probability of these parents having offspring that are homozygous recessive for this
feature?
a 100% b 75% c 50% d 25%

34 a genetic cross between two organisms may be shown as tt x tt.
what does t represent?
a adominant allele
b  adominant chromosome
c arecessive allele
d_ arecessive chromosome

35 some phenotypes are listed.
1 blood group
2 body mass
3 height
4 seed colour in peas
which phenotypes are examples of continuous variation?
a 1,2and3 b 2 and 3 only c 2and4 d 3and4

36 a food chain is shown.
lettuce plant > slug — hedgehog
by which process is energy transferred from the lettuce plant to the slug?
a egestion
b_ excretion
c_ ingestion
d_ respiration

37 a single bush is food for a large population of greenfly. several ladybirds eat the greenfly. the
ladybirds are eaten by a bird.
which diagram shows the pyramid of numbers for this food chain?
a b
cc d

38
sci
. ientists s
hi tudi
e res udied
ults a the up
re
3 e show take ©
50 n. f pota:
pa ssium
fee ions
aie fro
30 ae bieh
0 cca emi
ae ical
ae ferti
| rise
__ rs b
y
2 . wh
i oe eat pl
a ant
oe s.
pota eras
upt am neers
arte rice
ee anes
re se
iaaamie
peep
150 aoa
ianinie
here on
siiite fh oa
coe
inna -
ra
ie
100 iegteas
hee iettieaa
fo lh ee
hh l oes
tt fe peur
hh tt inate
hoh h h rr hh ae hh cca
ne hh tial coos
50 co h eo
aa ae
hh ‘aia th ro a
a i hh hhh h .
abel i ho heh j
ae he _.
0 el sn oe
tipe tt fee ce hay hh aa
0 saute ha heri hh hi del tea
jg hh beet area shire
wi oo patt hh coh ch coh wt ch srieocttt
h mn lh ceh ch hh hee bua ft hiettaaet
30 at i 60 ey wag ttt ry
es oe hh ro hhh hh
soa di if aan ht h
a sie 120 oo oe tt
29 rpla rence i | han
sn eae tet aad |.
29 per . e 0 an | sinieciits 4 coh lh coh h
ok he up’ co h sittesitas hh bbe
c g cta take da fleece fa siege
ener . of p ys a 240 |
d2 g pe ctare otassi er pl ae
80 rhe sium anti 3 — fheecheh heh
kg ota io ng 00 eu
pe re ns atta
rheet at 36 felch
are od 60 hee
a ae
ys afte r
pant 20
ing
ean
pared
to

39 a student investigated gas exchange using the apparatus shown.
mouthpiece
th
> —
limewater
tube x tube y
what would be the appearance of the limewater in tube x and tube y after breathing in and out of
the mouthpiece for one minute?
[| wbex [bey]
a clear clear
b clear cloudy
cc cloudy clear
d cloudy cloudy

40 the diagram shows the flow of energy in an ecosystem.
respiration
eat an
death
which row correctly completes boxes 1, 2 and 3?
a ee ee
a herbivore carnivore decomposer
b carnivore herbivore decomposer
c decomposer carnivore herbivore
d carnivore decomposer herbivore
permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. every
reasonable effort has been made by the publisher (ucles) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the
publisher will be pleased to make amends at the earliest possible opportunity.
to avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the cambridge
assessment international education copyright acknowledgements booklet. this is produced for each series of examinations and is freely available to download
at www.cambridgeinternational.org after the live examination series.
cambridge assessment international education is part of cambridge assessment. cambridge assessment is the brand name of the university of cambridge
local examinations syndicate (ucles), which is a department of the university of cambridge.

Solve 0610_w23_qp_12