/ Science and Technology
Theory Examination
June 2014
Science and Technology
Secondary 3 (555-306)
Student Booklet
BIM § GRICS Page 2
/ AST-300.A05 § Student BookletInstructions
1. Write the required information on the title page of the Answer Booklet.
2. This examination consists of three parts. PartA: 12multiple-choice questions, PartB: 9constructed-response questions and PartC: 4 technological analysis questions.
3. Answer all questions in the Answer Booklet, showing all your work and units.
4. You are permitted to use writing instruments and a calculator, with or without a graphic display that is designed mainly to perform mathematical calculations.
Before the exam starts, data and programs stored in the calculator’s memory must be deleted.
Using a calculator containing stored data or programs will be considered as cheating. Students may not share their calculators. Communication between calculators is forbidden.
Other electronic devices having a calculator function are strictly forbidden.
5. You may refer to the information provided in the Appendices of the Student Booklet. The use of any other reference material is strictly forbidden.
6. Hand in the Student Booklet and the Answer Booklet at the end of the examination.
Note: Each question is worth 4 marks.
Figures are not necessarily drawn to scale.
Time: 3hours
BIM § GRICS Page 2
/ ST-300.A05 § Student BookletPartA / Multiple-Choice Questions
Questions1to12
Answer all questions in the Answer Booklet.
Question1
The human body is made up of systems that are responsible for a variety of functions. Some of the systems and functions of the human body are listed at random in the tables below.
Table 1: System / Table 2: FunctionCirculatory / 1. Helps the body absorb oxygen and eliminate carbon dioxide.
Musculoskeletal / 2. Circulates the blood, transports nutrients to cells and eliminates waste.
Nervous / 3. Controls the entire organism, relays information to different parts of
the body.
Respiratory / 4. Provides the body with support, protection and allows movement.
Which of the following combinations correctly matches each system in Table 1 with its function from Table 2?
A) Circulatory – 2, Musculoskeletal – 4, Nervous – 3, Respiratory – 1
B) Circulatory – 2, Musculoskeletal – 3, Nervous – 4, Respiratory – 1
C) Circulatory – 1, Musculoskeletal – 3, Nervous – 4, Respiratory – 2
D) Circulatory – 1, Musculoskeletal – 4, Nervous – 3, Respiratory – 2
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion2
Two types of cell division occur in humans: mitosis and meiosis. One type of cell division is illustrated in the image below.
Cell Division
What type of cell division is illustrated and what are the characteristics of the daughter cells produced?
A) Mitosis: four daughter cells that are genetically different from the mother cell
B) Mitosis: four daughter cells that are genetically identical to the mother cell
C) Meiosis: four daughter cells that are genetically different from the mother cell
D) Meiosis: four daughter cells that are genetically identical to the mother cell
Question3
In the digestive tract, foods are decomposed by mechanical and chemical actions, nutrients are absorbed and wastes are eliminated.
Which statement correctly associates the part of the digestive tract with its function?
A) The esophagus absorbs proteins.
B) The small intestine absorbs amino acids.
C) The stomach breaks down carbohydrates.
D) The large intestine breaks down vitamins.
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion4
The diagram below illustrates the physiology of the circulatory system. Four structures are labelled.
Circulatory System
Which of the following combinations correctly names the vessels of the circulatory system and associates it with carrying oxygenated or deoxygenated blood?
A) / 1 - / Aorta (artery) / Deoxygenated Blood / B) / 1 - / Vena Cava (vein) / Deoxygenated Blood2 - / Pulmonary Vein / Oxygenated Blood / 2 - / Pulmonary Vein / Oxygenated Blood
3 - / Pulmonary Artery / Oxygenated Blood / 3 - / Pulmonary Artery / Deoxygenated Blood
4 - / Vena Cava (vein) / Deoxygenated Blood / 4 - / Aorta (artery) / Oxygenated Blood
C) / 1 - / Vena Cava (vein) / Deoxygenated Blood / D) / 1 - / Aorta (artery) / Deoxygenated Blood
2 - / Pulmonary Artery / Deoxygenated Blood / 2 - / Pulmonary Artery / Oxygenated Blood
3 - / Pulmonary Vein / Oxygenated Blood / 3 - / Pulmonary Vein / Oxygenated Blood
4 - / Aorta (artery) / Oxygenated Blood / 4 - / Vena Cava (vein) / Deoxygenated Blood
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion5
The neuron carries nerve impulses through the nervous system. A diagram of two neurons is illustrated below.
Neurons
Which of the following combinations correctly identifies the parts of the neuron that have been labelled on the diagram above?
A) 1- axon 2- dendrites 3- synapse
B) 1- axon 2- synapse 3- dendrites
C) 1- dendrites 2- axon 3- synapse
D) 1- dendrites 2- synapse 3- axon
Question6
Females undergo several changes during puberty. At this time, the menstrual cycle begins.
Which of the following hormones is NOT involved in the menstrual cycle?
A) Testosterone
B) Progesterone
C) Luteinizing hormone (LH)
D) Follicle stimulating hormone (FSH)
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion7
Fossils are useful in dating stratigraphic layers and in learning more about geological time on Earth. The diagram below illustrates several stratigraphic layers.
Stratigraphic Layers
Which one of the following statements about stratigraphic layers is TRUE?
A) All life forms that have existed left fossils in stratigraphic layers.
B) Living organisms were the most diverse when layer 2 formed.
C) The fossils in layer 5 are older than the fossils in layer 6.
D) There was a mass extinction during the formation of layer 4.
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion8
Johnny has to identify an unknown gas. He is given the information in the tables below.
Table 1: Unknown Gas
Property / ObservationColour / Colourless
Odour / Odourless
Mass / 0.0057 g
Volume / 3.16 mL
Reaction to glowing splint / none
Table 2: Properties of Gases
Gas / Reaction toglowing splint / Density (g/mL) / Color
Helium / none / 0.0018 / colourless
Hydrogen / none / 0.0009 / colourless
Nitrogen / none / 0.0125 / colourless
Carbon dioxide / extinguishes / 0.0180 / colourless
Using the information above, identify the unknown gas.
A) Helium gas
B) Hydrogen gas
C) Nitrogen gas
D) Carbon dioxide gas
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion9
Many different types of substances exist in the human body.
Which of the following combinations lists only pure substances?
A) air, calcium, oxygen, urine
B) blood, cells, oxygen, water
C) carbon dioxide, glucose, iron, oxygen
D) blood, carbon dioxide, glucose, urine
Question10
An active person can produce several litres of sweat a day. Pores in our skin allow the sweat toexit.
Which one of the choices below represents the process of sweat evaporating from a person’s skin using the Particle Model?
A) / / B) /C) / / D) /
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion11
Christine and Richard have been discussing options for assisted reproduction (fertility treatment) with their doctor. Christine’s fallopian tubes are blocked due to scarring from a chlamydia infection.
Blocked Fallopian Tubes
Which process would be part of Christine’s fertility treatment?
A) Artificial insemination
B) In vitro fertilization
C) Use of an Intra Uterine Device (IUD)
D) Vaccination against Human Papilloma Virus (HPV)
Question12
The statements below are examples of systems under physical constraints (forces).
Which one of the systems below is an example of tension?
A) Scissors cutting through newspaper.
B) Twisting a balloon into a balloon animal.
C) Crushing a can in a recycling process.
D) Suspending a wrecking ball at the end of a wire.
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletPartB / Constructed-Response Questions
Questions13to21
Answer all questions in the Answer Booklet.
Question13
Mekhi has just recovered from the measles, a viral infection. He would like you to explain to him how his body fought off the infection.
a) Which cell type is responsible for the defense of your body?
b) What is one (1) method that this cell type uses to fight off infections?
c) Why is Mekhi unlikely to suffer from measles in the future?
Question14
The ear performs two main functions; to maintain balance in the body and to convert sound into a nerve impulse.
Below is a diagram of the ear with an internal view of one of the structures.
Ear
a) Name the part of the ear that converts sound into a nerve impulse.
b) Explain the sequence of events that take place from the time sound enters the ear to when the nerve impulse forms in the auditory nerve.
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion15
Mayumi and her basketball team went out for supper at a buffet restaurant after their game. Their coach told them to choose foods that will help build and repair muscle tissue as they had just played a strenuous game.
The coach suffers from hypoglycemia (low blood sugar). She needs to consume foods that supply energy quickly.
The available foods are listed in the table below.
Foods AvailablePasta in tomato sauce
Fried vegetarian eggrolls
Chickpeas
Butter
Rice
Whole wheat bread / Lamb
Broccoli
Coleslaw
Brownies
Chicken
Bananas
a) Suggest two (2) foods that Mayumi and her teammates should choose if they want to build and repair muscle tissue.
b) Suggest two (2) foods that the coach could consume to supply energy quickly.
Question16
Many people from around the world have signed up to take part in a new reality TV show about travelling to Mars and setting up a human colony.
As living conditions on Mars are very different from Earth, you were told that once you arrive on the red planet, you will need to create conditions that are conducive to the maintenance of human life.
List three (3) conditions that are conducive to the maintenance of human life.
Explain why each condition is necessary for the maintenance of human life.
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion17
Sarah purchased a sports drink that had a concentration of 31 grams of fruit concentrate per litre (31 g/L).
The following weekend she made three (3) sports drinks of different concentrations for her soccer tournament.
The concentrations of the drinks she made are listed in the table below.
Concentration of Sports Drinks
Sports Drink / ConcentrationA / 0.05 g/mL
B / 15% (m/V)
C / 2.8 g/100mL
Which of the sports drinks listed in the table above had a concentration that was closest to her purchased sports drink?
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion18
Seamus is doing a laboratory exam and has been asked to identify a liquid and a solid by finding their densities. He performs the following procedures and records his observations in the tables below.
Procedure 1 for Unknown liquidHe measures the mass of an empty cylinder. Then, he adds 40.0 mL of the unknown liquid. Finally, he measures the mass of the cylinder with the liquid.
Table 1: Observation for Unknown Liquid
Mass of empty cylinder / 32.5 g
Mass of cylinder with 40.0 mL of liquid / 82.9 g
Procedure 2 for Unknown Solid
He measures the mass and dimensions of the object.
Solid Object
Table 2: Observation for Unknown Solid
Mass of object / 13.5 g
Length / 2.5 cm
Width / 1.0 cm
Height / 2.0 cm
a) Calculate the density of the liquid.
b) Calculate the density of the solid.
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion19
A laboratory technician would like to dilute a 3.0% (m/V) solution of sodium chloride, NaCl. She takes 250 mL of concentrated sodium chloride and adds water to prepare 1.5 L of the diluted solution.
What is the concentration of the new solution in % (m/V)?
Question20
Rosa is working part time as a pool cleaner. She observes the following two phenomena while cleaning the pool.
1) She can see an image of a tree on the surface of the water.
2) She notices that the pole appears to be bent once it has entered thewater.
What is the name of each phenomenon she has observed?
Explain each phenomenon.
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletQuestion21
The solubility graph below illustrates the effect of temperature on the solubility of a variety of substances.
Solubility Graph
a) Which substance shows the least change in solubility between 0oC and 100oC?
b) How many grams of potassium nitrate, KNO3, will dissolve in 100g of water at a temperature of 50oC?
c) At 80oC, 50g of KCl is dissolved in 100 g of water. Describe what will occur if the solution is cooled to 10oC?
BIM § GRICS Page 20
/ ST-300.A05 § Student BookletPartC / Technological Analysis Questions
Questions22to25
Answer all questions in the Answer Booklet.
Doctors are setting up clinics in various villages in Africa. They require the use of a centrifuge to help test blood and diagnose patients. The villages have limited resources so it is practical to have a portable, hand-crank centrifuge. A model of the centrifuge is illustrated in the diagram below.