2015 short questions Flashcards
Explain protein deamination.
This is the process by which excess protein is used for energy; occurs when excess amino acids are
broken down by the liver; the amino group (NH2) is converted to ammonia
Enumerate three biological functions of water
. transporting nutrients, oxygen, enzymes and hormones around the body
. removal of waste products from the body, e.g. from the kidneys
. controls body temperature through perspiration
In relation to lipids explain each of the following
smoke point flash point
smoke point-
State the nutritional significance of each of the following parts of the wheat grain. BRAN ENDOSPERM AND GERM.
bran-aids digestion by stimulating peristalsis and provides vitamin B for the release of energy
endo- healthy nervous system, protein (gluten) for growth.
germ- iron to prevent anaemia, Vitamin E antioxidant
to help prevent cancer
Outline three conditions necessary to ensure accurate results when carrying out sensory analysis tests.
Timing- mid-morning, mid-afternoon
No strongly flavoured foods for at least 30 minutes before tests
Testers must not set up the test
Classify sauces and give one example in each class
roux- parsley, sweet- chocolate, egg based- mayonnaise, fruit- apple, cold- mint, other- bread
. Explain how two of the following assist in the control of enzymic food spoilage. blanching, acids and cold temperatures
blanching- Vegetables are put into boiling water to inactivate enzymes, then food is plunged into ice cold water for the same amount of time to prevent further cooking
Acids- The addition of acids e.g. lemon juice deactivates enzymes in food it alters the ph of foods such as apples to prevent them going brown
cold temp- Enzyme action is slowed down; by placing in fridge (4˚C);
State the purpose of family resource management
To use available resources efficiently in order to achieve goals and to improve the quality of family life
List the three components of management.
input, throughput and output
State one advantage and one disadvantage of using credit to pay household utility bills.
advantage- Access to utilities/services even though cash is limited at the time
disadvantage- High interest charged if credit bill is not paid on time
State the function of each of the following parts of the refrigerator: thermostat
thermostat- Controls and maintains the temperature within the cabinet at 5°C or below; disconnects the
motor when the temperature rises
Outline two functions of the Citizens Information Board.
.provides the public with information about rights and entitlements such as Job Seekers
Benefit, Family Income Supplement.
.provides a money advice and budgeting service
State the function of each of the following parts of the refrigerator: refrigerant
this is liquid in the refrigerator that evaporates by drawing heat from within the cabinet, thus cooling the
cabinet
