Exercise 4. Read this summary of the conversation between Frank and Ann and choose the correct words.

Frank is in favour of genetically modified food because he believes it can help to _________1 food for poor countries. He also thinks it should be used to make more vitamin-enhanced _________2 and to change the habitats of species that are in danger of losing their habitats and becoming_________3.  Ann disagrees. She thinks GM foods are _________4 and potentially _________5.  She is worried about rich countries dominating poor countries when they control the food supplies. She doesn't like the fact that companies are using her for their GM _________6. Ann thinks that GM food is responsible for the _________7 in the numbers of some birds. Frank says there is _________8 evidence to prove this.

Exercise 5.   Who agrees with the following statements ?

1. There are tighter controls for GM food.

2. We haven’t done enough research, and playing around with crops is playing havoc with the wildlife.

3. They’ve developed a way to produce bananas with the Hepatitis B vaccine.

4. If they pass through all of those controls before they reach the shops, they must be ok.

5 And another thing that worries me is the power that a few food companies will have if we start to rely on GM food.

6. When a species dies out or mutates, it has a knock on effect on the whole ecosystem.

7.Global warming is threatening to destroy the habitat of polar bears.

8. We could use GM food to change the polar bears’ habitat now .

9. I don’t like being a guinea pig and we are all being guinea pigs for the experiments they’re doing on GM foods.

Discussion

1.What are the laws in your country regarding GM food?

2.Is GM food a threat to the future or is it rather a source of hope, in your opinion?

Food Sciences Vocabulary

Exercise 1. Choose the word which best fits all three sentences.

Before you start the exercise, check any items you don't know in a dictionary, then try the exercise without referring to the dictionary again.

Fats energy intake protein alcohol vitamins enzyme

Начало формы

A: At one time all _________ were considered 'bad' and should therefore be reduced in the diet, whereas now we are told that many are in fact necessary for good health.

B: _________ , or lipids as they are called in the nutrition jargon, are defined as those substances that are soluble in organic solvents, such as ether, hexae and chloroform, whilst being insoluble in water.

C: Junk food is food with minimal nutritional value, characterised by high levels of saturated _________ and refined sugar.

Exercise 2. Choose the word which best fits all three sentences.

Before you start the exercise, check any items you don't know in a dictionary, then try the exercise without referring to the dictionary again.

Fats energy intake protein alcohol vitamins enzyme

Начало формы

A: In real terms, foods with added _________ and minerals are likely to be beneficial only when incorporated into an already healthy and balanced diet.

B: This group of substances includes triacylglycerols, diacylglycerols, monoacylglycerols, free fatty acids, phospholipids, sterols, carotenoids and _________ A and D.

C: Daily intakes have a skewed distribution to the right which means a large proportion of students took more than enough _________ a day.

Конец формы

Exercise 3.  Choose the word which best fits all three sentences.

Before you start the exercise, check any items you don't know in a dictionary, then try the exercise without referring to the dictionary again.

Fats energy intake protein alcohol vitamins enzyme

Начало формы

A: If the basal metabolism increases, more energy is used up, leading to greater energy expenditure than energy _________, ultimately resulting in weight loss.

B: This history of alcohol abuse and recent need to cut down his alcohol _________ will be impacting on him socially, psychologically and physically.

C: In addition she has poor appetite and as a consequence her nutritional _________ is poor.

Exercise 4.  Choose the word which best fits all three sentences.

Before you start the exercise, check any items you don't know in a dictionary, then try the exercise without referring to the dictionary again.

Fats energy intake protein alcohol vitamins enzyme

Начало формы

A: This _________ catalyses the following reaction from the citric acid cycle.

B: Two molecules of ATP are used to convert glucose to fructose 1,6 bisphosphate, which is more reactive and can therefore be split by _________ action.

C: This _________ cleaves the bond between the C-1 carbon atom and the glycosidic oxygen atom of the substrate.

Exercise 5.  Choose the word which best fits all three sentences.

Before you start the exercise, check any items you don't know in a dictionary, then try the exercise without referring to the dictionary again.

Fats energy intake protein alcohol vitamins enzyme

Начало формы

A: Excessive _________ consumption may be detrimental to the attitudes of students towards academic work.

B: They may turn to _________ as a further means of coping.

C: _________'s mood-altering properties (e.g. its analgesic effects) may offer an attractive antidote for dysphoria.

Exercise 6.  Choose the word which best fits all three sentences.

Before you start the exercise, check any items you don't know in a dictionary, then try the exercise without referring to the dictionary again.

Fats energy intake protein alcohol vitamins enzyme

Начало формы

A: Mitochondrion creates _________ for cellular activity via aerobic respiration, from glucose. B: The change is normally in the ability to use a compound as an _________ source or resistance to an antibacterial agent.

 C: Weight gain increases leptin levels and induces a different response, leading to a state of negative _________ balance.

Exercise 7.  Choose the word which best fits all three sentences.

Before you start the exercise, check any items you don't know in a dictionary, then try the exercise without referring to the dictionary again.