CSEC Integrated Science Paper 1 May/June 2014 - Free CXC Past Paper with Answers

Photosynthesis occurs in the

The structure responsible for the transfer of characteristics from parents to offspring is found in the

Items 3-4 refer to the following diagram of the human digestive tract. I IV- II III

The organ labelled IV is the

Hydrochloric acid is produced in

Which of the following pollutant gases combines with the haemoglobin in red blood cells?

Which of the following word equations represents the process of photosynthesis?

Carbon dioxide + Water Energy Sucrose + Oxygen

Carbon dioxide + Water Energy Glucose + Oxygen

Alcohol + Oxygen Carbon dioxide + Water + Energy

Oxygen + Glucose Carbon dioxide + Water + Energy

Which of the following describes the shape of the molar tooth?

Which of the following statements about respiration is true?

Aerobic respiration requires oxygen while anaerobic respiration does not require oxygen.

Anaerobic respiration requires oxygen while aerobic respiration does not require oxygen.

Anaerobic respiration produces more energy than aerobic respiration.

Aerobic respiration produces oxygen while anaerobic respiration produces carbon dioxide.

The component of blood which protects the body by engulfing bacteria is the

Which of the following blood groups has no antigen?

By which of the following processes does water move from the soil into the root hairs of a plant?

The testes of the human male correspond to the anthers of flowers because they both

produce male sex cells

have tubes leading from them

Which of the following processes are associated with excretion by the kidneys? I. Evaporation II. Filtration III. Reabsorption

Which of the following blood components is responsible for blood clotting?

Items 15-16 refer to the following hormones. (A) Adrenaline (B) Insulin (C) Prolactin (D) Secretin

Which of the above hormones regulates the level of blood sugar in humans?

Which of the above hormones is produced in emergency situations?

By which of the labelled structures in the following diagram of the eye are impulses carried to the brain?

Which two diseases are caused by bacteria?

Sperm is produced in the

Which of the following BEST completes the path to fertilization in plants? Pollen → -------- → Ovary

Solar energy is transferred through space by

Liquids and gases normally expand when heated and contract when cooled. This principle explains the functioning of a

Which of the following conclusions is MOST likely to be true?

Item 24 refers to the following simple food chain.

Plant → Animal I → Animal II → Animal III

The herbivore in this food chain is

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

The action of the bone and the biceps muscle in the human forearm is an example of a

The force which acts on bodies in water causing them to appear to have less weight is called

Which of the following processes results in water moving from the ocean to the atmosphere?

Which of the following fishing methods is LEAST efficient?

Which of the following are DISADVANTAGES of using plastic bags? I. They are usually non-biodegradable. II. They may form toxic gases when burnt. III. They may collect water and breed mosquitoes when discarded. IV. They may suffocate young children.

Which of the following methods of birth control is MOST likely to prevent the spread of sexually transmitted diseases?

Sea water can be made fit for drinking by the process of

The MOST effective method used in controlling pests is the

use of another organism

use of screens on windows

eradication of their breeding places

welding a broken iron gate?

mixing dangerous chemicals in the laboratory?

Items 35-36 refer to the following safety equipment. (A) A pair of goggles (B) A pair of gloves (C) Helmet (D) Chest mask Which safety equipment is BEST suited when

Which chemical(s) must be handled with EXTREME care?

Which of the following is NOT a conductor of electricity?

The rusting of iron is an example of

Which of the following is an alloy?

A substance X has a pH of 2. This means that X is

Which of the following is a base?

Which of the following forms a suspension in water?

The increased pressure encountered by divers at great depths below sea level can affect the

Which solvent would be BEST suited to remove nail polish from fingernails?

The unit used to measure electric current is the

Which of the following groups is comprised ONLY of the primary colours of light?

White light is separated into its component colours by a process of dispersion using a

A refrigerator has a rating of 0.45 kW. The electricity used, in kWh, by this refrigerator for one day is equal to

Which of the following is NOT associated with the use of fossil fuels?

The type of energy found in petrol is

Which of the following is NOT an alternative source of energy?

The diagram below shows a pair of tongs with parts labelled (A), (B), (C) and (D). In which of the labelled parts is the effort usually applied?

Which of the following energy changes takes place in a power station that uses natural gas?

Chemical to electrical

Items 55-56 refer 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?

Which of the following terms BEST describes R?

Which of the following energy conversions takes place during the process of photosynthesis?

Item 58 refers to the following diagram which represents the passage of air through the engine of a jet plane.

X Air in Engine Air out Y P Q

The direction in which the plane is moving is

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

MA = $\frac{\text{Load}}{\text{Effort}}$

MA = $\frac{\text{Effort}}{\text{Load}}$

MA = Effort $\times$ Load

An electrician may use rubber gloves to hold a live electrical wire because the gloves act as

an insulator and will absorb 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

CSEC Integrated Science Paper 1 May/June 2014 - Free CXC Past Paper with Answers

CSEC Integrated Science Paper 1 May/June 2014 Questions