1. © ORCA Education Limited 2005
Food and Energy
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SHOW tom, tom.acs, 40, 68
PLAY Acknowledge
PLAY Explain
SAY Hello | Hi | Good Day,
SAY I am Tom. | My name is Tom. | I am the VT character Tom.
SAY ^PAUSE=300^ I will provide some extra guidance and information ^PAUSE=300^ during this {prez entation=presentation.} | I will help with some extra information during this {prez entation=presentation.} ^PAUSE=800^
SAY My colleagues may also give some help. | There are other characters who may also be called on to give some guidance. | Some of my colleagues may also help out. ^PAUSE=1300^
PLAY Explain2
SAY In this {prez entation=presentation} we will look at food and energy. | Today we will look at food and energy.
SAY Our food is essentially our fuel. ^PAUSE=1300^
PLAY Blink
SAY So ^PAUSE=300^ if you going to plan meals you need to understand how we use this fuel ^PAUSE=300^ and how much different people might need.^PAUSE=1300^
PLAY Announce2
SAY For example ^PAUSE=300^ catering for athletes in a training camp ^PAUSE=200^ would be quite ^EMPHASIS^different from deciding on a menu in an office restaurant.^PAUSE=2300^
SAY While we are talking ^PAUSE=300^ you can ^EMPHASIS^Suspend us ^PAUSE=300^ or ask us to ^EMPHASIS^Resume ^PAUSE=300^ by right clicking on us and then choosing ^PAUSE=300^ Suspend ^PAUSE=300^ or Resume ^PAUSE=300^ from the menu.^PAUSE=1300^
PLAY Decline
SAY If you choose ^EMPHASIS^Hide ^PAUSE=300^ we will stop completely! ^PAUSE=1300^
PLAY Sad
SAY ^PAUSE=600^
PLAY Alert
SAY Oh yes! ^PAUSE=300^
SAY There are some terms that may be new to you.
SAY If you want to see them before the {prez entation=presentation} click on the New Words button.
PLAY Point225
SAY ^PAUSE=800^
SAY These keywords in the text are red and underlined, ^PAUSE=300^ if you click on a highlighted word you will see a ^EMPHASIS^short definition
PLAY GestureDown
SAY at the bottom of the page. ^PAUSE=800^
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Revise and Test
© ORCA Education Limited 2005

2. Where does Energy come from?A
Answers
1. Fill in these missing words below:
Energy, /photosynthesis,/ protein
Energy comes from the sun.
(a.) Plants convert solar energy to chemical energy by ...…….
(b.) The chemical energy is used to make carbohydrates, .. ……. and fats.
(c.) Animals oxidise carbohydrates, protein and fats, i.e. use oxygen and glucose, to produce .…….. , carbon dioxide and water. *

3. Why is energy needed? A 2. We need energy to keep us alive.
Answers
2. We need energy to keep us alive.
Give two other uses of energy in the body.
3. Which vitamin and mineral are important for the release of energy? *

4. How is Energy Measured? A All energy can be measured.
Answers
All energy can be measured.
This includes energy from the sun, the energy we use and the energy contained in food.
Energy is measured either in joules or calories.
Both measures are used in the same way as pints and litres.
One kilocalorie or kcal (sometimes written as Calorie) equals kilojoules or kJ kcal = 4184kJ.
4. Approximately what are the missing values below?
(a.) 1 gram protein = 4kcal or ……kJ. (answer: 17kJ, 30kJ or 170KJ)
(b.) 1 gram fat = ….kcal or 38kJ. (answer: 4kJ, 9kJ or 19kJ)
(c.) 1 gram carbohydrate = 3.75 or …. kJ. (ans: 12kJ, 16kJ or 24kJ)*
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SHOW tom, tom.acs, 42, 68
PLAY Wave
PLAY Announce2
SAY Fat has more than ^EMPHASIS^double the amount of calories per gram than protein ^PAUSE=300^ and carbohydrate. ^PAUSE=1300^
PLAY Explain
SAY Fat is calorie ^EMPHASIS^dense because it is designed for the compact storage of energy. ^PAUSE=1300^
PLAY Explain2
SAY We tend to measure energy in Calories. ^PAUSE=1300^
SAY We also use {jools=joules} which are like the ^EMPHASIS^metric equivalent, ^PAUSE=300^
PLAY Surprised
SAY a bit like pints and litres. ^PAUSE=1300^
PLAY Think
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5. How much energy do we need?A
Answers
5. Name two factors that influence how much energy we need.
6. What is basal metabolic rate?
7. Give and example of a group of people who have a high BMR.
8. The BMR accounts for how much of our energy needs? (a.) one fifth, (b.) one third, (c.) one half (d.) three quarters. *
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SHOW tom, tom.acs, 78, 68
PLAY LookRight
SAY If these people are very active they will be looking for ^EMPHASIS^quality carbohydrates. ^PAUSE=700^
PLAY Explain
SAY These would come from potatoes, ^PAUSE=300^ {paa sta=pasta,} ^PAUSE=300^ rice ^PAUSE=300^ and bread. ^PAUSE=600^ These would give us a^EMPHASIS^sustained supply of energy. ^PAUSE=600^ They are also rich in other minerals, ^PAUSE=300^ vitamins, ^PAUSE=300^ {fiber=fibre} ^PAUSE=300^ and proteins. ^PAUSE=1300^
PLAY GestureRight
SAY This pizza would include plenty of energy from^EMPHASIS^quality carbohydrates. ^PAUSE=300^There is a place for even things like a jam sandwich.^PAUSE=1300^
PLAY Alert
SAY Jam contains sugars which will give more quick release energy. ^PAUSE=1300^
PLAY Explain2
SAY If you ate ^EMPHASIS^only jam your supply of energy would not last long. ^PAUSE=600^
PLAY Explain3
SAY There is a place for ^EMPHASIS^all types of food ^PAUSE=300^ but getting the balance right is ^EMPHASIS^very important. ^PAUSE=1300^
PLAY Acknowledge
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6. Activity Levels and Energy
Answers
The estimated average requirement (EAR) for energy for a year old male is 2755kcal.
9. Is the average requirements for a year old female (a.) less, (b.) the same, or (c.) more, than for a male of the same age?
EAR is based on age, sex and how active we are;
10. Name one group of people who will have extra energy needs? *
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SHOW tom, tom.acs, 42, 68
PLAY Wave
PLAY Announce2
SAY The group of people who have the highest energy requirements ^PAUSE=300^ are the fifteen to eighteen year olds. ^PAUSE=1300^
PLAY Explain
SAY At your age, ^PAUSE=300^ you are still growing which requires energy .^PAUSE=1300^
PLAY Explain2
SAY Also teenagers are more ^EMPHASIS^active than adults^PAUSE=300^ who may have a job sitting behind a desk all day and then just going home to watch TV. ^PAUSE=1300^
PLAY SitRight
SAY We do become less active as we get older ^PAUSE=300^ but today a growing trend is for^EMPHASIS^older people to keep active in retirement.^PAUSE=300^ Although having a nice rest seems a good idea to me! ^PAUSE=1300^
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7. Energy Values in the Diet
Answers
11. What percentage of our food energy requirement should come from starches? (a.) 10% (b.) 33% (c.) 50% (d.) 66%.
12. What food group should represent no more than 35% of our food energy?
13. What other nutrient provides us with energy? *

8. The Energy Balance A 14. Where is energy stored in the body?
Answers
14. Where is energy stored in the body?
15. What will happen if our diet provides more energy than we need?
16. What does ‘energy balance’ mean? *
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SHOW tom, tom.acs, 78, 68
PLAY LookRight
SAY Well of course we should not just let children eat what they want. ^PAUSE=1300^
PLAY Explain
SAY Their appetite ^EMPHASIS^may tell them ^EMPHASIS^when they need to eat ^PAUSE=300^ but not necessarily ^EMPHASIS^what they should eat. ^PAUSE=1300^
PLAY Point315
SAY There is nothing wrong with what this boy is eating as a mixed source of energy. ^PAUSE=1300^
PLAY Explain2
SAY The problem would be if this were ^EMPHASIS^all he ate. ^PAUSE=1300^
PLAY Explain3
SAY What macro and micro nutrients would he be missing out on? ^PAUSE=1300^
PLAY Acknowledge
SAY You know proteins^PAUSE=300^ plus things like minerals and {vit amins=vitamins.} ^PAUSE=1300^
PLAY Think
PLAY Wave
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9. Obesity A 17. What is the definition of obesity?
Answers
17. What is the definition of obesity?
18. Name two health problems that are linked to obesity.
In 2000/01 25% of males were obese and 41% were overweight.
19. What were the percentages for females? (a.) 20% obese and 33% overweight, (b.) 25% obese and 41% overweight, (c.) 35% obese and 46% overweight. *
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SHOW tom, tom.acs, 42, 68
PLAY Wave
PLAY Surprised
SAY Well in fact of course women work harder and use up more energy! ^PAUSE=1300^
PLAY Sad
SAY The other problem is that men, ^PAUSE=300^ on average, ^PAUSE=300^ drink more alcohol than women. ^PAUSE=1300^
PLAY Think
SAY You know alcoholic drinks contain ^EMPHASIS^lots of calories!
PLAY Explain
SAY It is a fact ^PAUSE=200^ that half a pint of lager has around one hundred calories in it? ^PAUSE=1300^
PLAY Explain2
SAY Two or three pints would equal the energy equivalent of a ^EMPHASIS^full meal! ^PAUSE=1300^
SAY Perhaps there should be more information given about this! ^PAUSE=1300^
PLAY Alert
SAY Then of course there are lots of men ^PAUSE=300^ who once they leave school stop doing sport and sit behind a desk or the wheel of a lorry all day.^PAUSE=1300^
SAY So why is it different for women? ^PAUSE=300^ Even fewer women do sport^PAUSE=300^ but they tend to be ^EMPHASIS^much more active at home.^PAUSE=1300^
SAY Unfortunately things have not changed that much and women still tend to do more of the housework and gardening than men.^PAUSE=1300^
SAY I am ^EMPHASIS^deeply ashamed.
PLAY GestureRight
SAY and eight percent more likely to be overweight as a result of my laziness. ^PAUSE=1300^
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10. Exercise A
Answers
During your teenage years you are building the body for the rest of your life.
Not taking exercise may well condemn you to a shorter unhealthier life.
20. What is the recommended amount of exercise for a teenager?
21. Which of these are a benefit of taking exercise. (Strengthens the body, / helps digestion,/ helps mental health, / improves concentration, / improves appetite, / helps keep desired weight.) *

11. Suggested Answers 1a. Photosynthesis, 1b. protein, 1c. Energy.
Return
1a. Photosynthesis, 1b. protein, 1c. Energy.
2. For warmth, for bodily functions e.g. heart and lungs, for growth and repair, for activity.
3. The B group of vitamins and the mineral iron.
4. (a.) 17KJ, (b.) 9Kcal, (c.) 16KJ.
5. Age, sex, level of activity, BMR.
6. The rate at which a person uses energy to maintain the basic functions of the body.
7. Babies and infants due to rapid growth.
8. (d.) Three quarters.
9. (a.) An average female requires less at 2110 Kcal.
10. Pregnant and breastfeeding women, sportspeople or people convalescing.
11. (c.) 50%.
12. Fats.
13. Protein. *

12. Suggested Answers continued
Return
14. As fat.
15. We store fat and gain weight.
16. Balancing the energy we take in as food, to the energy we use to maintain a desired weight.
17. Very fat or 20% above the desired weight range depending on height and age.
18. Coronary heart disease, type 2 diabetes, gallstones, arthritis, high blood pressure, some forms of cancer.
19. (a.) 20% and 33%.
minutes a day where the pulse is 120 beats per minute or more.
21. All of them are benefits of taking exercise! *

13. End End Show Acknowledgements
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