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FORM TP 2016044
CANDMATE - PI,['-A SE NffTT'.l
PRINT your name on the llnc belowthis b6oklet wlth ydirr answer ilieeldo so mey rcsult in disqurlifiirtion
TEST CODE O12O7O1O
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frK*i
MAY/JUNE 20I6
CARIBBEAN EXAMINATIONS COUNCILCARIBBEAN SECONDARY EDUCATION CERTIFICATE@
EXAMINATION
BIOLOGY
Paper 0l - General Proficiency
t hour 15 minutes
READ THE FOLLOWING INSTRUCTIONS CAREFULLY.
This test consists of 60 items. You will have t hour and I 5 minutes to answer them.
In addition to this test booklet, you should have an answer sheet.
Each item in this test has four suggested answers lettered (A), (B), (C), (D). Read each item
you are about to answer and decide which choice is best.
On your answer sheet, find the number which corresponds to your item and shade the space
having the same letter as the answer you have chosen. Look at the sample item below.
Sample Item
Which of the following diseases is due toa dietary deficiency? Samole Answer
@@ @o
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(A) Malaria(B) Diabetes(C) Influenza(D) Anaemia
6
The correct answer to this item is "Anaemia", so (D) has been shaded.
5. If you want to change your answer, erase it completely before you fill in your new choice.
When you are told to begin, turn the page and work as quickly and as carefully as you can
If you cannot answer an item, go on to the next one. You may retum to that item later.
7. Figures are not necessarily drawn to scale
DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO SO.
08 JUNE 2016 (p.m.)
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Copyright @ 201 4 Caribbean Examinations CouncilAll rights reserved.
012070t01F 2016
-2-
1 Which of the following features is used
to classify a group of organisms as Class
Insecta?
Living organisms, such as plants, are
affected by abiotic factors which determine
where they become established. Which ofthe following options describes some ofthese determining factors?
3.
(A)(B)(c)(D)
Eleanor collected 13 snails in a 25 cm x
25 cm quadrat. What is the density of the
snail population in a I m2 area?
(A)(B)(c)(D)
SizeShape
ColourNumber of segments
Large fish
Sunlight availabilitY, soil PH,minerals
Parasitism, commensalism,mutualism
Sediment size, shaPe and colour
Deforestation, slash and burn,shifting cultivation
(A)
(B)
(c)(D)2
t352
208832
Item 4 refers to the following diagram of a food web'
L.7
ruNzSmall fish and crustaceans Zooplankton
4. Trophic Level I is represented by
/
-a-
zooplanktonphytoplanktonsmall fish and crustaceans
marine mammals and PeoPle
Phytoplankton
\
f-::;,'",r,:*<-Y#w ,
{F.-o oE.'t-or*-*k1 + rf,t'-Po
(A)(B)(c)(D)
GO ON TO THE NEXT PACE
-3-
Item 5 refers to the following diagram of amushroom.
2cm
5. The organism shown above is a
producerconsumerdetritivoredecomposer
Items 6-7 refer to the following options.
(A) Parasitism(B) Commensalism(C) Mutualism(D) Synergism
For Items 6-7, match each item with one
of the options above.
The relationship between a wild pine and
a Flamboyant tree
The type ofrelationship between leguminous
plant roots and nitrogen-fixing bacteria
6.
7
(A)(B)(c)(D)
ConsumersProducersSun
Inorganicnutrient
pool
Item 8 refers to the following diagram which shows energy flow through an ecosystem.
Heat Eeat
Heat
The energy flow is NOT 100% efficient because energy is
(A)(B)(c)(D)
recycled from plants to the afinospherelost through respiration and excretion
circular, moving in and out of organisms
linear, moving from one organism to the next
8.
GO ON TO THE NEXT PACE
9
-4-
Which of the following is NOT an example
of a renewable energY resource?
(A) oil(B) Wind(C) Solar(D) Biomass
Which ofthe following practices doesNOT
help to conserve the environment?
(A) Overgrazing(B) CroP rotation(C) Reafforrestation(D) Using natural fertilizers
Human activities would have the LEAST
immediate imPact on
(A) coralbleaching(B) eutroPhication(C) overPoPulation
iOl formation of fossil fuels
Which of the following effects of climate
change poses the GREATEST threat to
small islands?
(A) Rising sea level
(B) Ocean acidification(C) lncreased greenhouse gas
(D) Increased global temperature
The GREATEST threats to the survival of
coral reefs are
decreased nitrogen levels
decreased greenhouse gases
i ncreased ocean temPeratures
increased dissolved oxygen levels
Item 14 refers to the following graph of
f,-oputution growth.
0
1A
6lb!Lo
L(u!
z
14.
-------lI
I
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4
10
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t2
I
Phase 4 of the graph of population groMh
is MOST likelY due to
(A)(B)(c)(D)
disease resistance
high natural birth rate
adequate food and sPace
competition from invasive species
15. A mature plant cell is different from a
mature animal cell because the plant cell
has
(A)(B)(c)(D)
mitochondriaa cell membrane
a large permanent vacuole
a nucleus susPended in the
cytoPlasm
13
(A)(B)(c)(D)
GO ON TO THE NEXT PAGE
5
Item 16 refers to the following diagrams.
16. Which of the following options MOST likely identifies the organelles, I and II above?
Nucleus and chloroplastMitochondrion and nucleusMitochondrion and chloroplastNucleus and mitochondrion
uI
(A)(B)(c)(D)
Organelle Function
(A) Ribosomes Sites of protein synthesis
(B) Mitochondrion Air space in the cell
(c) Nucleus Controls movement offats in the cell
(D) Vacuole Site of energy use
17.
18
Which of the following organelles iscorrectly matched with its function?
In a comparison between osmosis and
diffusion, which ofthe following statements
is NOT true?
(A) Osmosis occurs only in livingcells.
(B) Both processes require energyto move particles across aconcentration gradient.
(C) Diffusion sometimes requiresa partially permeablemembrane.
(D) With both processes, moleculesmove from a high concentrationto an area of lower concentration.
Item 19 refers to the following diagramwhich represents a metabolic process
carried out in plants.
Light q4oa
Plant
Food
19. The food produced is
(A)(B)(c)(D)
fatstarchproteinamino acid
Oxygencell
Chlorcphylltn
chloroplasts
GO ON TO THE NEXT PAGE
Item 20 refers to the following diagram
showin g the cross section ofa d icotyledonous
leaf.
Which of the following statements about
the labelled Parts are true?
Rate ofPhotosynthesis
o.o3% co2
Light intensitY
Which of the following statements BEST
accounts for the shaPe ofthe graPh?
-6-
m2l
III
(A) As photosYnthesis rates increase,
there is a decrease in carbon
dioxide levels.
As light intensitY increases, the
rate of PhotosYnthesis also
increases, until a stationarYphase exists, when denaturation
of the enzymes occurs.
As light intensity increases, there
is an increase in PhotosYnthesis,until there is no further increase
in the rate due to some other
limiting factor.As carbon dioxide levels
graduallY increase, there is aii*ilu. increase in the rate ofphotosYnthesis, until a Plateauphase exists where no further
ir"."ut" in carbon dioxideresults in anY funher increase in
photosYnthesis.
20
(B)
(c)
(D)
(A)(B)(c)(D)
I and II onlY
I and lll onlY
II and lll onlY
I, ll and III
Region Function
I Allows maximum sunl ightpenetration throu gh transParent
cells
Allows for transPiration via
cellsII
It Allows for gaseous exchange
vla cells
rlr) r)N Tr) THF- NF,XT PAGE
ttem 2l refers to the following diagram'
-7 -
ItemZ2 refers to the following diagram ofa tooth.
m
IV
Which option correctly identifies thestructures labelled l, II, III and IV?
Which of the following conditions are
optimum for the action of salivary amylase?
Item24 refers to the following diagram
I
-II
-trI
-IV
Which two food groups should a person
suffering from hypertension and diabetes
limit?
I
II
7)
23
24
(A)(B)(c)(D)
I and IlI and IVII and IIIIII and IV
25 Which of the following can be ingested toprevent osteomalacia or rickets?
CalciumVitamin AVitamin CMagnesium
(A)(B)(c)(D)
I II III IV(A) Crown Enamel Dentine Pulp
(B) Enamel Crown Root Nerve
(c) Enamel Dentine Pulp Capillaries
(D) Dentine Enamel Nerve Capillaries
Temperature('c)
pH Amount of MaltoseProduced (pg)
(A) 20-30 1-2 t2
(B) 30-40 7-8 73
(c) 3H0 9-10 64
(D) 40-s0 7-8 32
GO ON TO THE NEXT PAGE
Corual
-8-
26. Which of the following options correctly
matches the gaseous exchange structures
with the organism?
Which ofthefollowing BEST identifl some
of the transport substances in animals?
Amino acids
HormonesSucroseRespiratory gases
28.
I.II.III.IV.
(A)(B)(c)(D)
I and ll onlyI and IV onlyII and III onlY
I, II and IV only
21. The role of respiration is BEST described
release of energY
absorption ofoxYgenbreakdown of carbohYdrates
liberation of carbon dioxide
as the
(A)(B)(c)(D)
Human Fish Plant
(A) Trachea Mouth Stems
(B) Alveoli Gill filaments Large leaves
(c) Alveoli Gill rakers Young leaves
(D) Trachea Cillbars Spongymesophyll
Item 29 refers to the following diagram of a human heart'
I
IIUI
Iv
29 Which of the following options correctly identifies the structures labelted I' II' III and IV?
I u ru IV
(A) Aorta Pulmonary artery Pulmonary vein Bicuspid or Mitralvalve
(B) Pulmonary artery Posterior vena cava Aorta Bicuspid or Mitralvalve
(c) Aorta Pulmonary vgtn_ Pulmonary Semi-lunar valve
(D) Pulmonary vein Pulmonary artery_ Anterior vena cava id valve
GO ON TO THE NEXT PAGE
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30.
31
32
33
(B)
(D)
(c)
An Amoeba obtains all the oxygen it needsby diffusion via its cell membrane, whilea human needs to have special respiratorysurfaces for this purpose. The BEST reasonfor this difference is that
(A)
Which of the following options correctlymatches the storage organs to their storednutrients?
The BEST description of the role ofexcretion in living organisms is to
(A) produce urine(B) produce faeces(C) get rid of toxic waste(D) get rid of excess water
Item 36 refers to the following diagram ofa mammalian kidney nephron.
I
II
UI
Which option correctly identifies thefunctions of the parts labelled I, II and III?
the Amoeba does not require muchoxygen
oxygen cannot pass through theskin of a human
a human requires a larger volumeofoxygen
a human's surface area to volumeratio is too small for diffusion tobe effective
34.
35.
36
The essential vitamin and mineral saltrequired for blood clotting in humans are
(A) A and Mg2*(B) C and K*(C) B and Na"(D) K and Ca2*
Under which conditions will the rate oftranspiration in plants be HIGHEST?
(A) Sunny and low wind speed(B) Sunny and high wind speed(C) Cloudy and low wind speed(D) Cloudy and high wind speed
Translocation of sucrose in plants occursvia specialized vessels which
(A) are dead, narrow cells(B) are abundant in mitochondria(C) contain sieve pores in their end
walls(D) are thin, hollow tubes of lignin
Roots Fruits Liver(A) Starch Sucrose Glycogen
(B) Starch Fructose Glucose
(c) Proteins Glucose Fats
(D) Fats Glucose Glycogen
I II UI(A) Ultrafiltration Water
conservationSelectivereabsorption
(B) Ultrafiltration Selectivereabsorption
Under theinfluence ofADH
(c) Waterconservation
Under theinfluenceofADH
Urineproduction
(D) Selectivereabsorption
Ultrafiltration Under theinfluence ofADH
GO ON TO THE NEXT PAGE
-10-
37.
38
39
Which of the following organs does the
mammalian skeleton Protect?
(A) Stomach(B) Pancreas(C) Bladder(D) Duodenum
Which ofthe following correctly describesmovement in plants?
(A) Irreversible, whole or partmovement
(B) Reversible, whole or partmovement(C) Irreversible, growth or part
movement(D) Reversible, growth or part
movement
Which of the following options BESTdescribes the terms 'stimulus' and'response'?
Item 40 refers to the following diagram
Which of the following options correctlyidentifies the structures labelled I, ll andIII above?
Item 41 refers to the following diagram ofthe skin.
IV
The region which acts in a similar mannerto SPF (Sun Protection Factor) creams is
UI
40.
IIIg
I
II
III
(A)(B)(c)(D)
I
IIIIIIV
I II trI(A) Receptor Relay nerve Effector
(B) Skin Intermediatenerve
Muscle
(c) Sensorynerve
Spinal nerve Effector
(D) Receptor Spinal nerve Effector
Stimulus Response
A( ) A deliberateprovocation ofan organism
The movement of an
organism
(B) An organism'sexposure tosunlight
The growth of theorganism away fromlight
(c) A wave ofexcitement in anorganism
Locomotion of theorganism
(D) A detectablechange in an
organism'senvironment
An organism'sreaction to a stimulus
41.
(.}r) r)N TO THtr- NEXT PAGE
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42.
43
(A)(B)(c)(D)
Item 43 refers to the following diagramwhich illustrates a measurement of growthin living organisms.
Which of the following is an INCORRECTlabel for the y-axis?
The function of the choroid layer in the eyeis to
45. Contraception is used PRIMARILY to
(A) limit the size of families(B) cause infertility in humans(C) prevent the spread of sexually
transm itted infections(D) increase the world's population
46. Where does fertilization of the egg cell orovum occur in flowering plants?
(A) Stigma(B) Endosperm(C) Pollen grain(D) Embryo sac
Item 47 refers to the following diagram ofa flower.
47 Which of the labelled parts is responsiblefor the production of male gametes?
I
IIIIIIV
focus most light raysprevent internal refl ectionmaintain the shape of the eyeballcontrol the amount of light entering
the eye
LengthMassNumber of leavesUnits of time
Repair of the uterus liningOvulationShedding of the uterus liningDevelopment of the Graafian
follicle
I
II(A)(B)(c)(D)
I.II.III.IV
ilI
IVItem 44 refers to the following activitiesinvolved in the menstrual cycle.
(A)(B)(c)(D)Which of the following is the correct
sequence of activities?
(A) l, II, IIl, IV(B) II, I, III, tV(C) IV, I, II, III(D) rY III, Il, I
44.
GO ON TO THE NEXT PAGE
-12-
48. A vector is defined as an organism that 50
bites humanscauses diseases
lives on other organismstransmits disease organisms
Which of the following organisms transmits
the yellow fever virus?
Which of the following are used in the
management of diabetes?
(A)(B)(c)(D)
I.IIIII
DietExerciseMeditation
49
(A) I and Il onlY(B) I and III onlY(C) Il and III onlY(D) I,ll and III
(A) Culex(B) Tsetse
(C) Anopheles(D) Aedes aegtPti
51 Which of the following options correctly describes DNA, chromosome, gene and allele?
DNA Chromosome Gene Allele
(A) Deoxyribonucelic acid DNA + histamine Unit that codes for a
specific protein
An alternate form of agene
(B) Unit that codes for a
specific protein
An alternate form ofa gene
DNA + protein Histone
(c) Nucleic acid that has allgenetic information
DNA + histone The smallest unit ofinheritance
An altemate form of agene
(D) Nucleic acid that has all
genetic information
The smallest unit ofinheritance
Unit that codes for a
specific prglgrn_DNA + protein
As a result of mitosis each daughter cell
has
Tarzan and Jane, both of whom are
heterozygous for Blood Groups A and B
respectivety can have offspring that are
likely to be
(A) 100% AB(B) 50Yo A: 50Yo AB(C) 25%o AB: 50Yo B:25Yo O(D) 25o/o A:25YoB:25%o AB:25o/oO
5352.
(A)(B)
a variable number of chromosomes
twice the number of chromosomes
as the Parentthe same number of chromosomes
as the Parenthalf the number of chromosomes
as the parent
(c)
(D)
GO ON TO THE NEXT PAGE
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54.
56.
Zane, the son of Tarzan and Jane, mayhave inherited the red-green colour-blindness gene from his parents. NeitherTarzan nor Jane is colour-blind. If Nrepresents the allele for normal vision, andn represents the allele for colour-blindness,the genotypes of the parents would MOSTlikely be
Tazan Jane(A) XNY XNxn
(B) X,Y xNxo(c) x.Y XnXn
(D) XNY XnXn
55. Variation in populations is due to
I. mutationll. crossing overlll. asexualreproductionIV. random segregation
Which ofthe following is true about naturaland artifi cial selection?
Which of the following is an ecologicalimpl ication of genetic engineering?
(A) Loss of biodiversity(B) Humans'playingCod'(C) Higher prices for organic foods(D) Reduced incidence of allergic
reactions
Which of the following describes theprocess of genetic engineering?
(A) Tissue sample is treated to promotegrowth of cells.
(B) Stem cells are grown and used totreat medical problems.
(C) Chromosomes from an egg cell arereplaced by the nucleus from asomatic cell.
(D) A gene is inserted into a vectorwhich is then used to transfer thegene to a host cell.
58.
59
60
(A)(B)(c)(D)
(A)(B)(c)(D)
Variation is important to populationsbecause it ensures
I, II and III onlyI, II and IV onlyII, III and IV onlyI, II, III and IV
diversityconformityadaptabilityabnormality
57. Speciation may be due to
I. geographical isolationII. behaviouraldifferencesincourtshipIII. mutation
(A) I only(B) I and Il only(C) Il and III only(D) I, II and III
END OF TEST
IF YOU FINISH BEFORE TIME IS CALLED, CHECK YOUR WORK ON THIS TEST.
Natural Selection Artificial Selection
(A) Occurs indomestic populations.
Occurs in naturalpopulations.
(B) Involves genetic modi-fication.
Largely controlled bythe environment.
(c) Environment acts onthe population whichadapts.
Selective breeding fora particular trait.
(D) Faster process. Slower process.
012070t0tF 2016