3.
What is the name of the part labelled Y?
- (A)
Nucleus
- (B)
Cytoplasm
- (C)
Mitochondrion
- (D)
Chromosome
Free CXC Integrated Science Paper 1 May/June 2016 past paper from 2016. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
Answer keys are free on Caribbean AI. View the answers to every past-paper question at no cost - no payment needed - with step-by-step worked solutions and instant AI marking available on Premium.
CSEC Integrated Science Paper 1 May/June 2016 - Free CXC Past Paper with Answers
Free CXC Integrated Science Paper 1 May/June 2016 past paper from 2016. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
Opening the interactive papers…
Every question from this paper as text. See the answers and worked solutions. Questions are the property of the Caribbean Examinations Council; Caribbean AI is not affiliated with CXC.
Photosynthesis occurs in the
nucleus
cell wall
chloroplast
mitochondrion
The structure responsible for the transfer of characteristics from parents to offspring is found in the
vacuole
cytoplasm
chromosome
cell membrane
Item 3 refers to the following diagram which shows an animal cell.
What is the name of the part labelled Y?
Nucleus
Cytoplasm
Mitochondrion
Chromosome
Which of the following statements about photosynthesis is TRUE?
Oxygen is absorbed by the chlorophyll.
Water is a by-product of the process.
The process results in the release of energy.
Carbon dioxide is used by the chlorophyll.
Which nutrient is important for building strong muscles?
Fat
Sugar
Starch
Protein
Which of the following word equations represents the process of photosynthesis?
Carbon dioxide + Water Sucrose + Oxygen
Carbon dioxide + Water Glucose + Oxygen
Alcohol + Oxygen Carbon dioxide + Water + Energy
Oxygen + Glucose Carbon dioxide + Water + Energy
Which of the following pollutants has a strong affinity for haemoglobin?
Lead dioxide
Methane
Sulphur dioxide
Carbon monoxide
Which of the following are common features of respiratory surfaces? I. Moist II. Small surface area III. Well supplied with blood vessels
I and II only
I and III only
II and III only
I, II and III
Which of the following are significant sources of air pollution? I. Volcanic eruptions II. Extensive use of cars III. Dumping of plastic bottles
I and II only
I and III only
II and III only
I, II and III
Which of the following blood groups has no antigen?
A
B
O
AB
Item 11 refers to the following diagram which represents a component of blood.
What is the function of this blood component?
Fights infection
Transports oxygen
Forms blood clots
Transports dissolved foods
The part of the heart that separates the left side from the right is the
valve
tendon
septum
pacemaker
Which of the following processes are associated with excretion by the kidneys? I. Evaporation II. Filtration III. Reabsorption
I and II only
I and III only
II and III only
I, II and III
regulates the level of blood sugar in humans?
Adrenaline
Insulin
Prolactin
Secretin
is produced in emergency situations?
Adrenaline
Insulin
Prolactin
Secretin
Item 16 refers to the following diagram of the eye.
Which structure transmits impulses to the brain?
(A)
(B)
(C)
(D)
Which two diseases are caused by bacteria?
I and II
I and III
II and IV
III and IV
In which test tube is germination MOST likely to take place?
I
II
III
IV
The testes of the human male correspond to the anthers of flowers because they both
are separate organs
have similar shapes
produce male sex cells
have tubes leading from them
Which of the following completes the following path to fertilization in plants? Pollen → -------- → Ovary
Petal
Stigma
Stamen
Receptacle
Solar energy is transferred through space by
radiation
convection
conduction
evaporation
The method of heat transfer at I is
radiation
convection
conduction
evaporation
The part labelled I is the
bulb
stem
bore
glass
Which of the following farming techniques are recommended to prevent soil erosion? I. Terracing II. Contour farming III. Strip planting
I and II only
I and III only
II and III only
I, II and III
The eye of the hurricane is the
centre of the hurricane
path along which the hurricane is moving
region in which the hurricane is located
front where the winds reach the speed of a standard hurricane
Decayed organic matter in soil is called
sand
humus
sediment
limestone
Items 27-28 refer to the following food web.
Which of the following is a producer?
Mouse
Toad
Grass
Rabbit
Which of the following is NOT a herbivore?
Mouse
Spider
Rabbit
Squirrel
Which of the following fishing methods is the LEAST efficient as it relates to the number of fish caught?
Drift net
Long line
Hand line
Trawl net
Which of the following processes results in water moving from the ocean to the atmosphere?
Respiration
Precipitation
Evaporation
Condensation
Which of the following processes used in the treatment of water will eliminate harmful bacteria?
Aeration
Filtration
Sedimentation
Chlorination
Items 32-33 refer to the following methods of water purification. (A) Distillation (B) Filtration (C) Chlorination (D) Sedimentation In answering Items 32-33 each option may be used once, more than once or not at all. Which method involves the
settling of heavy materials?
Distillation
Filtration
Chlorination
Sedimentation
boiling and re-condensing of water?
Distillation
Filtration
Chlorination
Sedimentation
The MOST effective method used in controlling pests is the
use of traps
use of another organism
use of screens on windows
eradication of their breeding places
Which method of waste disposal is LEAST harmful to the environment?
Burning
Burying
Recycling
Landfilling
Item 36 refers to the following safety equipment. I. Helmet II. Gloves III. Boots
Which of the following are essential for a welder?
I and II only
I and III only
II and III only
I, II and III
Which of the following is MOST needed by a student pouring corrosive chemicals in the laboratory?
Helmet
Gloves
Hard hat
Safety vest
Which of the following is NOT a conductor of electricity?
Iron
Carbon
Copper
Plastic
The rusting of iron is an example of
reduction
oxidation
precipitation
neutralization
Brass is a mixture of
copper and tin
copper and zinc
zinc and tin
silver and copper
Steel is widely used in the construction of buildings because it
is inexpensive
is easy to recycle
has high tensile strength
has a high melting point
Which of the following chemicals removes nail polish?
Borax
Acetone
Washing soda
Methylated spirit
Item 43 refers to the following dat obtained in an experiment to investigat crop growth and optimum pH growth.
| Crop | Optimum pH Value of Soil |
|---|---|
| (A) | 4.0-6.0 |
| (B) | 6.0-8.0 |
| (C) | 8.0-10.0 |
| (D) | 10.0-12.0 |
Which crop grows BEST in neutral soil?
4.0-6.0
6.0-8.0
8.0-10.0
10.0-12.0
Which of the following forms a suspensior in water?
Salt
Oxygen
Sugar
Clay
Hard water is water that
contains alcohol
contains a lot of chemicals
forms a lot of lather with soap
does not form lather with soap easily
Item 46 refers to the following diagram which represents an analogue meter used to measure the amount of electricity used.
Diagram of an analogue meter with dials showing readings for 10000, 1000, 100, 10, and 1/10 KWh.
What is the reading on the meter?
15 487.0 kWh
16 597.0 kWh
25 487.0 kWh
26 597.0 kWh
Which of the following groups is comprised ONLY of the primary colours of light?
Red, blue, cyan
Red, green, blue
Red, green, purple
Red, blue, orange
Which electrical component is designed to melt and break the circuit if too much current passes through it?
Fuse
Flex
Plug
Switch
A refrigerator has a rating of 0.45 kW. The electricity used, in kWh, by this refrigerator for one day is equal to
0.45
In the Caribbean, the energy used in the production of electricity is derived mainly from
waterfalls
fossil fuels
solar panels
wind turbines
The type of energy contained in fossil fuels is
solar
kinetic
electrical
chemical
Which of the following is NOT an alternative source of energy?
Solar
Wind
Candle
Wave
Which of the following formulae is used to calculate the mechanical advantage (MA) of a machine?
MA =
MA =
MA = Effort - Load
MA = Effort × Load
The spanner is an example of
a lever
a pulley
an inclined plane
a hydraulic press
Item 55 refers to the following diagram which illustrates a body, P. that revolves around the sun and another body, R, that revolves around P
Which of the following terms BEST describes P?
Planet
Galaxy
Asteroid
Satellite
What type of energy is the athlete using to jump over the hurdle?
Heat
Sound
Kinetic
Potential
Which of the following energy change takes place in a power station that use natural gas?
Kinetic to heat
Electrical to heat
Kinetic to chemical
Chemical to electrical
The direction in which the plane is moving is
X to Y
Y to X
P to Q
Q to P
Which of the following types of equilibrium is shown in the diagram?
Stable
Neutral
Unstable
Chemical
An electrician may use rubber gloves to hold a live electrical wire because the gloves act as
an insulator and will conduct the current
a conductor and will not allow the current to pass through
a conductor and conducts the current away from the gloves
an insulator and does not allow current to pass through