CSEC Integrated Science Paper 1 May/June 2001 - Free CXC Past Paper with Answers

Which of the following areas are MOST likely to be affected if human populations of countries are NOT controlled? I. Recreational activities II. Land availability III. Food production IV. Environmental conditions

In which parts of the flower are male and female sex cells produced?

A pap smear is a method of checking whether

cow's milk contains tuberculosis bacteria

a woman has developed cancer of the cervix

a particular type of porridge is nutritious

a woman's ovary contains eggs

Which of the following is the correct order, from front to back, of teeth in the mouth of the human being? I. Canines II. Incisors III. Molars IV. Premolars

Which of the following are storage organs? I. Onions II. Potatoes III. Carrots IV. Rice

A few drops of sodium hydroxide and copper sulphate solutions were added to crushed peanuts mixed with water. The resulting deep purple colour indicated the presence of

The list below shows the energy value of four food substances in kJ/g. I. 420.0 II. 46.6 III. 42.0 IV. 4.2 Which TWO foods are LIKELY to be similar in type?

Which of the following is a function of the white blood cells?

Transporting of oxygen

Transporting of carbon dioxide

Production of antibodies

Which of the following is responsible for fatigue in the muscle cells?

Which of the following blood groups has no antigen and, as a result, can be used in transfusion to any person?

The gas which is produced by fish and used by aquatic plants is

Which of the following processes is associated with the removal of undigested food from the body?

Many thermostats rely on the principle that, on heating,

all metals conduct heat equally

some metals curve more than others

all metals expand equally

some metals expand more than others

Which of the following common animals are homoiothermic?

I. Fish II. Lizard III. Dog IV. Bird

Which of the following serves as a protection for the heart?

Alcohol is placed in the capillary tube in minimum thermometers because it

has a low freezing point

has a low boiling point

Which of the following result from poor ventilation?

I. Lack of oxygen II. Cool surroundings III. Rapid growth of bacteria IV. Unpleasant odours

Which of the following is NOT true about recycling?

Decreases waste in the environ- ment

Saves on raw materials that have to be used

Requires collection and sorting of waste

Can be done only with non- biodegradable materials

Which of the following would NOT contribute to the 'wear and tear' of a machine?

In which of the following situations could a pulley be used?

I. Operating a wooden crate II. Removing an engine from an automobile III. Driving a tractor into a trailer truck IV. Unloading cargo on the docks

Which of the following is NOT necessary to start a fire?

Which of the following is the MINIMUM recommended time lapse between the eating of a full meal and the undertaking of vigorous activity?

Blood boosting increases the number of red cells in the blood. An athlete whose blood has been boosted can perform better in a race because he

can absorb more oxygen

is more immune to disease

Which of the following is NOT a water safety device?

Along which part of the track will the athletes move MOST slowly?

The San Francisco earthquake of 1991 measured 7.2 on the Richter scale. This figure is a measure of the

total energy release

amount of damage done

length of time it lasted

Which energy conversion sequence BEST summarises how electrical energy is generated by a diesel-powered genera- tor?

Heat → chemical → mechanical → electrical

Chemical → heat → mechanical → electrical

Chemical → mechanical → heat → electrical

Heat → mechanical → chemical → electrical

The centre of gravity of an object is the

point at which gravity acts on the object

centre of the object

point at which the object can be balanced

point at which the mass of the object is heaviest

The following conditions exist in space. I. Reduced gravity II. No atmosphere III. Radiation IV. Extremes of temperature Which of these conditions are overcome by an astronaut's spacesuit?

The force of gravity experienced by astronauts in a space ship in circular orbit around the Earth

is greater than on the Earth

is less than on the Earth

is the same as on the Earth

In which of the following are sense receptors NOT found?

A very high blood sugar level may result from

malfunctioning of the pancreas

eating a meal containing a large amount of sugar

defect of the gonads

too much protein in the diet

If a tin or sardines has been left open for several hours on a table, it is BEST to

heat the sardines before use

add vinegar to the sardines before use

cool the sardines in a refrigerator before use

discard the tin of sardines

By which process does water pass from the ocean to the atmosphere?

Which of the following injuries would require the use of cold water and light bandages?

Which of the following substances is the BEST conductor of electricity?

The gas from a chemical fire extinguisher is effective in putting out a fire MAINLY by

combining with oxygen

excluding oxygen from the fire

reducing the temperature of the fire

removing the combustible material

In the Caribbean, the energy used in the production of electricity is derived mainly from

Energy is released when green plants use glucose during respiration. The combustion of petroleum also releases energy. Where does the energy from these two processes originate?

Which of the following processes can transfer heat in a vacuum?

Which of the following is different from the others in its reaction to cold water?

The FULL range of sound frequencies (in kHz) that can be picked up by the human ear is approximately

Which example of domestic waste does NOT easily undergo weathering or break-down by bacteria?

Which of the following household chemicals can be used to clear clogged kitchen sinks?

Which chemical is BEST for removing nail polish?

What is the pH of gastric juice produced in the stomach?

The jawbone is one example of a type of lever found in the human skeleton. This type of lever, when used together with the incisors in cutting, is an example of a

combination of first, second and third class levers

In order to determine which type of soil, (A), (B), (C), or (D), retained the most water, Kim carried out an experiment using apparatus shown below.

There is a leak in the roof above an operating electric machine. Which of the following are valid reasons for fixing the leak? I. Water in the electrical conduit can cause a fire. II. Water in the operating machine can cause a fire. III. A person touching a wet operating machine can be shocked.

The majority of fish propel themselves forward through water by

forcing water through their gills

moving their side fins

regulating their swim-bladders

Which of the following types of pests is/are MOST likely to damage oranges? I. Carnivores II. Decomposers III. Scavengers

The handle of a cricket bat is usually elastic. This is property

enables the batsman to apply large forces

makes the bat sturdy

absorbs more shock if the batsman gets hit on his fingers

reduces the shock to the batsman's hands

Parallel rays of light emerge as parallel rays after hitting a

Which of the following helps our sense of balance?

Semi-circular canals

Which of the following types of tides occurs when the high tide is highest.

Which of the following is NOT characteristic of a cold front?

Slow fall in pressure

Decrease in temperature

Which of the following formulae is used to calculate the mechanical advantage of a machine?

Mechanical Advantage = $\frac{Load}{Effort}$

Mechanical Advantage = $\frac{Effort}{Load}$

Mechanical Advantage = Effort - Load

Mechanical Advantage = Effort x Load

During an earthquake, the sea withdrew for several kilometres along the coast and returned as immense waves. What kind of waves are these?

A raw material used to produce electrical energy in a nuclear reactor is

In which of the following are curved reflectors NOT used?

CSEC Integrated Science Paper 1 May/June 2001 - Free CXC Past Paper with Answers

CSEC Integrated Science Paper 1 May/June 2001 Questions