Fechar
What is a balanced diet?
What should a balance diet provide?
What are macronutrients? How much do you need a day?
What are micronutrients? How much do you need a day?
What do we need carbohydrates for?
What do we need protein for?
What do we need lipids for?
What types of vitamins do we need?
What is dietary fibre? What do we need it for?
What do we need water for?
What is the formula for BMI?
What percentage over the recommended BMI are you classed as clinically obese?
What type of carbohydrate is preferable? Why?
What are the typical requirements of carbohydrates for...
a) 18 year old male
b) 18 year old female
How much percentage of our energy comes from carbohydrates?
What type of lipids are essential?
What are the typical requirements of lipids for...
a) a 18 year old male
b) a 18 year old female
How much percentage of our energy comes from lipids?
What makes proteins different to other macronutrients?
What are proteins key components of?
What do we get from proteins that are important for us to function?
What are the typical requirements of protein that are needed for...
a) an 18 year old male
b) an 18 year old female
What percentage of our energy comes from proteins?
What is the typical requirement of water for a person aged 18? Why does this amount differ among people?
There is evidence to suggest that dietary fibre...
What are the typical requirements of dietary fibre for...
a) an 18 year old male
b) an 18 year old female
What does DRV stand for?
What is EAR?
What does EAR depend upon?
What does malnutrition mean? What are the two types of malnutrition?
What commonly causes famine?
What commonly causes obesity?
What type of malnutrition was commonly found in the UK in the 19th and early 20th century? What did this lead to?
What type of malnutrition was most commonly found in the late 20th century? What did this lead to?
What are the figures that suggest that cases of obesity are on the increase?
What does obesity increase the risk of?
What is type two diabetes?
What are the epidemic dietary causes of obesity?
What are the epidemic lifestyle causes of obesity?
Could obesity be caused by genetics?
What factors can contribute to CHD (Coronary Heart Disease)?
What is coronary heart disease?
How is CHD developed?
Step 1
How is CHD developed?
Step 2
How is CHD developed?
Step 3
How is CHD developed?
Step 4
Where has there been an increased incidence of CHD?
Where specifically in the artery wall is cholesterol deposited?
What happens to the artery wall as more cholesterol becomes deposited?
If atheroma continues to get larger what could happen?
What are the two ways that an artery can be blocked?
What are the three types of CHD?
What is angina?
What is myocardial infarction (heart attack)?
What is heart failure?
How does salt affect CHD?
How does cholesterol affect CHD?
What type of foods have high cholesterol?
How much blood cholesterol should we be aiming for?
Why should we still keep cholesterol in our diets?
Why is blood cholesterol unavoidable?
Our blood cholesterol levels should be...
Lipids are essential in a diet..
What are the two types of lipids and where do you find them?
What type of lipid is beneficial in our diets?
What type of lipid isn't beneficial in our diet?
How does dietary fibre said to reduce the risk of CHD?
Can too much dietary fibre be too bad for us?
Does alcohol increase the risk of CHD?
How can alcohol decrease the risk of CHD?
How can alcohol increase the risk of CHD?
What is a lipoprotein?
Why do we need them?
What are the two types of lipoprotein?
What are HDLs composed of?
Good or bad?
What are LDLs composed of?
Good or bad?
What are HDLs said to do in relation to CHD?
What do HDLs do?
What do LDLs do?
Where does all the food we eat come from originally?
Why?
What does the general diet have more of?
What is diet like in developed countries?
Why is there more demand for food production?
How could we improve food productions? (4)
What was the desirable characteristics of a plant that early farmers chose to breed?
(4)
What was the desirable characteristics of an animal chosen by early farmers to breed? (4)
What did the artificial selection of plants/animals by early farmers result in?
What is selective breeding?
Who provides the selection pressure for selective breeding?
What does the speed of characteristics changing depend on?
Which is slower and why?
What is increasing due to the demand of increasing food production? (2)
What are the concerns of increasing mechanisation and use of agrichemicals? (2)
What did the concerns of increased mechanisation and use of agrichemicals lead to? (4)
How do we maintain soil fertility and crop production? (2)
The Irish became dependant on one breed of potato (Lumper) which was high yielding but non-resistant to blight and so when infected the Irish Potato Famine occurred...
What did they have to do to resolve this?
In many cases nitrogen is a limiting factor which doesn't allow and increase of plant production, what can be done to fix this? (3)
What are the traditionally organic fertilisers and ploughed in legumes that have been used? (3)
What is a fertiliser?
What is eutrophication?
What can cause eutrophication?
What else other than eutrophication does overuse of fertilisers cause?
How?
What are pesticides?
Define a "crop pest"...
What can pests reduce? (3)
What type of organisms are included under "pests"?
What does an insect pest do?
How is a weed a pest?
What are the five different pesticides?
What are the two types of insecticides?
What are the properties of organochorines? (3)
What are the properties of organophosphates? (2)
What are the four major issues surrounding pesticides?
Why is toxicity a major issue around pesticides?
Why is persistence a major issue around pesticides?
Why is specificity a major issue around pesticides?
Why is bioaccumulation a major issue around pesticides?
What could we use instead of pesticides?
What is this?
The Cane Toad was an example of Biological Pest Control...
Why was this unsuccessful?
What can we use as a Biological Pest Control? (3)
What are the advantage of using Biological Pest Control? (4)
What are the disadvantages of using Biological Pest Control?
What are the two types of herbicides?
What does a contact herbicide do?
What does a systemic herbicide do?
What types of animals are reared intensively?
What has selective breeding inadvertently caused?
What can antibiotics be used for in reference to animals with similar disease susceptibilities? (4)
What are the concerns around use of antibiotics in animals? (3)
What do hormones affect in animals?
