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FORM TP 2016044
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disqurlifiirtion
TEST CODE
O12O7O1O
MAY/JUNE 20I6
CARIBBEAN EXAMINATIONS COUNCIL CARIBBEAN SECONDARY EDUCATION CERTIFICATE@ EXAMINATION
BIOLOGY
* w
Paper 0l
fr K *i
t
- General
Proficiency
hour 15 minutes
08 JUNE 2016 (p.m.)
READ THE FOLLOWING INSTRUCTIONS CAREFULLY. This test consists of 60 items. You will have t hour and I 5 minutes to answer them. 2
In addition to this test booklet, you should have an answer sheet.
J
Each item in this test has four suggested answers lettered (A), (B), (C), you are about to answer and decide which choice is best.
4
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.
(D). Read each item
Sample Item
Which of the following diseases is due to a dietary deficiency?
(A) (B) (C) (D)
Malaria Diabetes
Samole Answer
@@
@o
Influenza Anaemia
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.
6
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
I I
DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO
--
Copyright @ 201 4 Caribbean Examinations Council All rights reserved.
I I
I
012070t01F 2016
SO.
-2Which of the following features is used to classify a group of organisms as Class
1
3.
Insecta?
(A) (B)
Size
(c)
Colour Number of segments
Shape
(D)
(A)
t3
(B)
52
(c)
208
(D)
832
are
affected by abiotic factors which determine where they become established. Which of the following options describes some of these determining factors?
(A)
Sunlight availabilitY, soil PH,
(B)
Parasitism, commensalism,
(c)
mutualism Sediment size, shaPe and colour
(D)
Deforestation, slash and burn,
minerals
x Eleanor collected 13 snails in a 25 cm 25 cm quadrat. What is the density of the snail population in a I m2 area?
2
Living organisms, such as plants,
shifting cultivation
Item 4 refers to the following diagram of a food web'
L. 7 Large fish
/\
w ruNz Small fish and
4.
Trophic Level
(A) (B)
(c) (D)
f-::;,'",r,:*
-a -
crustaceans I
Y#
E.'
{F.-o
o
t-or*-* rf, t'-Po +
, k1
Phytoplankton
is represented by
zooplankton phytoplankton small fish and crustaceans marine mammals and PeoPle
GO ON TO THE NEXT PACE
-3Items 6-7 refer to the following options.
Item 5 refers to the following diagram of a mushroom.
(A) (B) (C) (D)
Parasitism Commensalism
Mutualism Synergism
For Items 6-7, match each item with one of the options above.
2cm
6.
The relationship between a wild pine and a Flamboyant tree
7
The type ofrelationship between leguminous
plant roots and nitrogen-fixing bacteria
5.
The organism shown above is a
(A) (B)
(c) (D)
producer consumer
detritivore decomposer
Item 8 refers to the following diagram which shows energy flow through an ecosystem. Eeat
Heat
Sun
Producers
Consumers
Inorganic nutrient pool Heat 8.
The energy flow is NOT 100% efficient because energy is
(A) (B)
(c) (D)
recycled from plants to the afinosphere lost through respiration and excretion circular, moving in and out of organisms linear, moving from one organism to the next
GO ON TO THE NEXT PACE
-4Item 14 refers to the following graph of
Which of the following is NOT an example of a renewable energY resource?
9
(A) (B) (C) (D)
f,-oputution growth.
oil Wind Solar Biomass
-------l
0
I I I
1A
4
I
I
6l
b! L
o
Which ofthe following practices doesNOT help to conserve the environment?
10
(A) (B) (C) (D) 1l
13
z
Overgrazing CroP rotation Reafforrestation Using natural fertilizers
14.
Human activities would have the LEAST immediate imPact on
(A) (B) (C) iOl t2
L (u
!
I
Phase 4 of the graph
(A) (B)
(c)
coralbleaching eutroPhication overPoPulation formation of fossil fuels
(D)
15.
high natural birth rate adequate food and sPace competition from invasive species
cell mature animal cell because the plant has
(A) (B) (C) (D)
(c)
(A) (B) (D)
lncreased greenhouse gas
disease resistance
A mature plant cell is different from a
Which of the following effects of climate change poses the GREATEST threat to small islands? Rising sea level Ocean acidification
of population groMh
is MOST likelY due to
mitochondria a cell membrane a large permanent vacuole
a nucleus susPended in
the
cytoPlasm
Increased global temperature
The GREATEST threats to the survival
of
coral reefs are
(A) (B)
(c) (D)
decreased nitrogen levels decreased greenhouse gases i ncreased ocean temPeratures increased dissolved oxygen levels
GO ON TO THE NEXT PAGE
5
Item 16 refers to the following diagrams.
u
I
16.
Which of the following options MOST likely identifies the organelles, I and II above?
(A)
Nucleus and chloroplast
(B)
Mitochondrion and nucleus Mitochondrion and chloroplast Nucleus and mitochondrion
(c) (D)
17.
Which of the following organelles
Item 19 refers to the following diagram which represents a metabolic process
is
correctly matched with its function?
carried out in plants.
(c)
Organelle Ribosomes Mitochondrion Nucleus
(D)
Vacuole
(A) (B)
Function Sites of protein synthesis Air space in the cell Controls movement of fats in the cell Site of energy use
Light
Chlorcphyll
Plant 18
In a comparison between osmosis and
q4oa
tn
cell
Oxygen
chloroplasts
diffusion, which ofthe following statements is
NOT true?
(A)
Osmosis occurs only in living
(B)
Both processes require energy to move particles across a
cells.
concentration gradient.
(C) Diffusion sometimes requires a partially permeable (D)
membrane.
With both processes, molecules move from a high concentration
Food
19.
The food produced is
(A) (B)
fat
(c)
protein amino acid
(D)
starch
to an area of lower concentration.
GO ON TO THE NEXT PAGE
-6ttem
Item 20 refers to the following diagram showin
g
the cross section ofa
d
2l
refers to the following diagram'
icotyledonous Rate of Photosynthesis
leaf.
o.o3%
I II
co2
Light intensitY
m2l
Which of the following statements BEST accounts for the shaPe ofthe graPh?
(A)
As photosYnthesis rates increase, there is a decrease in carbon
(B)
As light intensitY increases, the rate of PhotosYnthesis also increases, until a stationarY
dioxide levels.
20
Which of the following statements about
phase exists, when denaturation
the labelled Parts are true?
Region I
Function Allows maximum sunl ight
(c)
penetration throu gh transParent
cells
II
Allows for transPiration via cells
It
Allows for gaseous exchange vla
(A) (B)
I and II onlY I and lll onlY
(c)
II and lll onlY I, ll and III
(D)
cells
(D)
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 a ii*ilu. increase in the rate of photosYnthesis, until a Plateau phase exists where no further
ir"."ut" in carbon
dioxide
results in anY funher increase in photosYnthesis.
rlr) r)N Tr) THF- NF,XT
PAGE
-7
-
ItemZ2 refers to the following diagram of a tooth.
Item24 refers to the following diagram
I
I
II
m
-II
-trI IV Corual
7)
Which option correctly identifies the structures labelled l, II, III and IV?
III
I
II
(A) (B)
Crown Enamel
Enamel
Dentine Pulp
Crown
Root
Nerve
(c)
Enamel
Dentine
Pulp
(D)
Dentine
Enamel
Nerve
Capillaries Capillaries
23
IV
Which of the following conditions are optimum for the action of salivary amylase?
pH
(A) (B)
20-30
Amount of Maltose Produced (pg) t2 1-2
30-40
7-8
73
(c)
3H0
9-10
64
(D)
40-s0
7-8
32
Temperature
('c)
24
Which two food groups should a person suffering from hypertension and diabetes limit?
(c)
I and Il I and IV II and III
(D)
III
(A) (B)
25
-IV
and
IV
Which of the following can be ingested to prevent osteomalacia or rickets?
(A) (B)
(c) (D)
Calcium Vitamin A Vitamin C Magnesium
GO ON TO THE NEXT PAGE
-826.
28.
Which of the following options correctly matches the gaseous exchange structures with the organism? Human
Stems
(A) (B)
Trachea
Mouth
Alveoli
Gill filaments Large leaves
(c)
Alveoli
(D)
Trachea
Gill rakers Cillbars
Amino acids
I.
Plant
Fish
Which ofthefollowing BEST identifl some of the transport substances in animals?
Young leaves Spongy mesophyll
II. III.
Hormones
IV.
Respiratory gases
(A) (B)
I and ll only I and IV only
(c)
II
Sucrose
III onlY I, II and IV only
(D) 21.
and
The role of respiration is BEST described as the
(A)
release of energY
(B)
absorption ofoxYgen breakdown of carbohYdrates liberation of carbon dioxide
(c) (D)
heart' Item 29 refers to the following diagram of a human
I II UI
Iv
29
structures labelted Which of the following options correctly identifies the
I
Pulmonary vein
(A)
Aorta
Pulmonary artery
(B)
Pulmonary artery
Posterior vena cava Aorta
(c)
Aorta Pulmonary vein
Pulmonary
(D)
vgtn_
and IV?
IV
ru
u
I' II' III
Pulmonary
Pulmonary artery_ Anterior vena cava
Bicuspid or Mitral valve Bicuspid or Mitral valve Semi-lunar valve id valve
GO ON TO THE NEXT PAGE
-930.
An Amoeba obtains all the oxygen it needs
34.
by diffusion via its cell membrane, while a human needs to have special respiratory surfaces for this purpose. The BEST reason for this difference is that
(A)
the Amoeba does not require much
oxygen
(B)
oxygen cannot pass through the skin of a human
(c)
a human requires a larger volume
(D)
a human's surface area to volume
ofoxygen
nutrients?
Roots
Fruits
Liver
(A)
Starch
Sucrose
Glycogen
(B)
Starch
Fructose
Glucose
(c)
Proteins
Glucose
Fats
(D)
Fats
Glucose
Glycogen
35.
(A) (B) (C) (D)
be effective
The essential vitamin and mineral salt required for blood clotting in humans are
(A) (B) (C) (D) 32
(A) (B) (C) (D) 33
(D)
of
I
of
II
Sunny and low wind speed Sunny and high wind speed Cloudy and low wind speed
UI
Cloudy and high wind speed
Translocation of sucrose in plants occurs via specialized vessels which
(A) (B) (C)
produce urine produce faeces get rid of toxic waste get rid of excess water
Item 36 refers to the following diagram a mammalian kidney nephron.
A and Mg2* C and K* B and Na" K and Ca2*
Under which conditions will the rate transpiration in plants be HIGHEST?
The BEST description of the role of excretion in living organisms is to
ratio is too small for diffusion to
31
Which of the following options correctly matches the storage organs to their stored
36
Which option correctly identifies the functions of the parts labelled I, II and III?
II
UI
Water
Selective
conservation
reabsorption
Selective reabsorption
Under the influence of
I
are dead, narrow cells are abundant in mitochondria
(A)
contain sieve pores in their end walls are thin, hollow tubes of lignin
(B)
(c)
Ultrafiltration Ultrafiltration
Water
conservation
Under the influence
ADH Urine production
ofADH (D)
Selective reabsorption
Ultrafiltration Under the influence
ADH
GO ON TO THE NEXT PAGE
of
-1037.
Item 40 refers to the following diagram
Which of the following organs does the mammalian skeleton Protect?
(A) (B) (C) (D) 38
U
I Stomach Pancreas
Bladder Duodenum
g
III
Which ofthe following correctly describes movement in plants?
(A)
Irreversible, whole or part
(B) (C)
Reversible, whole or partmovement
(D)
40.
movement
III
above?
Irreversible, growth or part movement
Reversible, growth or part movement
I (A) (B)
(c) 39
Which of the following options correctly identifies the structures labelled I, ll and
Which of the following options BEST describes the terms 'stimulus' and
II
trI
Receptor
Relay nerve
Effector
Skin
Intermediate nerve
Muscle
Sensory
Spinal nerve
Effector
Spinal nerve
Effector
nerve
(D)
Receptor
'response'?
Stimulus (A )
(B)
(c) (D)
Response
A deliberate provocation of an organism An organism's exposure to sunlight
The movement of an organism
A wave of excitement in an organism A detectable change in an organism's environment
Locomotion of the organism
Item 41 refers to the following diagram the skin.
of
The growth of the organism away from
I
light
II
III
An organism's reaction to a stimulus
IV 41.
The region which acts in a similar manner to SPF (Sun Protection Factor) creams is
(A) (B)
(c) (D)
I
II
III IV
(.}r) r)N TO THtr- NEXT PAGE
42.
ll-
The function of the choroid layer in the eye
45.
is to
(A) (B)
(c) (D)
focus most light rays prevent internal refl ection maintain the shape of the eyeball control the amount of light entering
Contraception is used PRIMARILY to
(A) (B) (C)
cause
(D)
increase the world's population
limit the size of families infertility in humans prevent the spread of sexually transm itted infections
the eye
Item 43 refers to the following diagram which illustrates a measurement of growth in living organisms.
46.
Where does fertilization of the egg cell or ovum occur in flowering plants?
(A) (B) (C) (D)
Stigma Endosperm Pollen grain
Embryo sac
Item 47 refers to the following diagram
of
a flower.
I 43
Which of the following is an INCORRECT label for the y-axis?
II (A)
Length
(B)
Mass
(c)
Number of leaves Units of time
(D)
ilI IV
Item 44 refers to the following activities involved in the menstrual cycle. I.
Repair of the uterus lining
II.
Ovulation Shedding of the uterus lining
III.
IV 44.
Development of the Graafian follicle
Which of the following is the correct sequence of activities?
(A) (B) (C) (D)
47
Which of the labelled parts is responsible for the production of male gametes?
(A) (B)
(c) (D)
I
II III IV
l, II, IIl, IV II, I, III, tV IV, I, II, III rY III, Il, I
GO ON TO THE NEXT PAGE
-12-
48.
A vector is defined as an organism
(A)
bites humans
(B)
causes diseases
(c)
lives on other organisms transmits disease organisms
(D)
49
II III
(A) I and Il onlY (B) I and III onlY (C) Il and III onlY (D) I,ll and III
Tsetse
Anopheles Aedes aegtPti
gene and allele? Which of the following options correctly describes DNA, chromosome,
(A)
Deoxyribonucelic acid
(B)
Unit that codes for a
An alternate form of
specific protein
a gene
52.
Nucleic acid that has all DNA + histone genetic information Nucleic acid that has all The smallest unit inheritance genetic information
of
has
(c) (D)
variable number of chromosomes twice the number of chromosomes as the Parent the same number of chromosomes as the Parent half the number of chromosomes as the parent a
Unit that codes for a
An alternate form of a
specific protein DNA + protein
gene
Histone
The smallest unit inheritance
As a result of mitosis each daughter cell
(A) (B)
Allele
Gene
Chromosome DNA + histamine
(D)
Diet Exercise Meditation
I.
Culex
DNA
(c)
Which of the following are used in the management of diabetes?
50
Which of the following organisms transmits the yellow fever virus?
(A) (B) (C) (D)
51
that
An altemate form of a
of
gene
DNA + protein
Unit that codes for a specific
53
prglgrn_
Tarzan and Jane, both of whom are heterozygous for Blood Groups A and B respectivety can have offspring that are likely to be
(A) (B) (C) (D)
100% AB
AB
50Yo
A:
25%o
AB: 50Yo B:25Yo O A:25YoB:25%o AB:25o/oO
25o/o
50Yo
GO ON TO THE NEXT PAGE
Zane, the son of Tarzan and Jane, may
54.
13 -
58.
have inherited the red-green colourblindness gene from his parents. Neither Tarzan nor Jane is colour-blind. If N represents the allele for normal vision, and n represents the allele for colour-blindness, the genotypes of the parents would MOST
likely be
Tazan
55.
(A) (B)
X,Y
Jane XNxn xNxo
(c)
x.Y
XnXn
(D)
XNY
XnXn
XNY
Natural Selection
Artificial Selection
(A)
Occurs in domestic populations.
Occurs in natural populations.
(B)
Involves genetic modification.
the environment.
(c)
59
mutation crossing over
(A) (B)
I, II and III only I, II and IV only II, III and IV only I, II, III and IV
(c) (D)
asexualreproduction random segregation
(c) (D)
57.
Selective breeding for a particular trait.
Faster process.
Slower process.
Which of the following is an ecological impl ication of genetic engineering? Loss of biodiversity
Humans'playingCod' Higher prices for organic foods Reduced incidence of allergic reactions
60
Which of the following describes the process of genetic engineering?
because it ensures
(A) (B)
Environment acts on the population which
(A) (B) (C) (D)
Variation is important to populations
56.
Largely controlled by
adapts.
(D)
Variation in populations is due to
I. ll. lll. IV.
Which ofthe following is true about natural and artifi cial selection?
(A) (B)
diversity conformity adaptability abnormality
(C) (D)
Speciation may be due to
I. II. III.
geographical isolation behaviouraldifferencesincourtship mutation
(A) (B) (C) (D)
I only I and Il only Il and III only
Tissue sample is treated to promote
growth of cells. Stem cells are grown and used to treat medical problems. Chromosomes from an egg cell are replaced by the nucleus from a somatic cell. A gene is inserted into a vector which is then used to transfer the gene to a host cell.
I, II and III END OF TEST
IF YOU FINISH BEFORE TIME IS CALLED, CHECK YOUR WORK ON THIS TEST. 012070t0tF 2016
