Unit 304 Flashcards
What is the role of fibre ?
To bulk food
What is the role of carbohydrates?
Main source of energy
What is the role of water ?
To hydrate the body
What is the role of minerals and vitamins ?
To keep us healthy
What is the role of lipids ?
For energy and insulation
What is the role of protein ?
For growth and repair
Ingestion and digestion of food provides the elements for …
Growth
Repair
Energy
Reproduction
Different species of animals have different requirements for nutrients depending on ?
Individual variations
Weight
Sex
Environmental temperature
Physiological state is
Physical activity
Life stage
Reproductive state
The overall energy requirements of an animal are referred to as ?
Metabolism rate
What is basal metabolic rate (BMR) ?
When an animal is at rest and not digesting food , energy required for maintenance of life to sustain vital body functions Heart beat Breathing Transmission of nerves impulse Maintenance of blood
Describe and explain Ectothermic
Cold blooded
Lower metabolic rate
Describe and explain Endothermic
Warm blooded
Higher metabolic rate
If iodine turns blue or black when added to the food what is present ?
Starch
If iodine stays orange when added to food what is not present?
Starch
When Benedict’s reagent is added to smushed food and placed in a water bath for 20 mins if it turns blue …
No sugar is present
When Benedict’s reagent is added to smushed food and placed in a water bath for 20 mins if it turns orange …
Some sugar is present
When Benedict’s reagent is added to smushed food and placed in a water bath for 20 mins if it turns red …
A lot of sugar is present
What is cholesterol ?
Fatty substance
Where is cholesterol made ?
Liver
Why is cholesterol important in the body ?
Hormones
Bile
Cell membrane
What are the two types of cholesterol ?
HDL and LDL
Why is too much cholesterol bad ?
LDL causes artery blockage as plaque builds up and narrows arteries
What does the amount of cholesterol depend on ?
Age
Sex
Weight
Which cholesterol is good ?
HDL
Which cholesterol is bad ?
LDL
Which type of fat increase cholesterol?
Saturated fats
How can we reduce cholesterol?
Eat less saturated fats
