Studied by 16 people
A liquid in which substances can be dissolved is a
solvent
Regularly drinking excessive amounts of water can lead to water
intoxication
Body fluids that contain water are saliva + blood+ digestive juices + urine + perspiration and
lymph
Water helps remove body wastes through exhaled water vapour + urine + faeces and
sweat
Water outside the cells is
extra cellular
tissue is about 75 percent water
muscle
tissue is about 20 to 35 percent water
fat
contains water to help lubricate food as you swallow it
saliva
are a lubricant for your eyes
tears
Water serves as a medium for
chemical reactions
Body fluids that regulate body temperature are perspiration and
blood
A substance that reduces friction between surfaces is a
lubricant
Water is a __ product of nutrient metabolism
by
Kidneys form _________________ when they draw water and wastes from the blood
urine
A person who has an abnormal loss of body fluids is said to be
dehydrated
Most people need 2 to 3 ______ of water each day to replace body fluids
litres
A substance that increases urine production is a
diuretic
Water inside the cells is called ___________________ cellular. (prefix)
intra
Water determines the shape + size and firmness of
cells
The human body stores excess protein for future need
FALSE
The amount of protein a person needs is related to his or her activity level
FALSE
Most people in Canada eat more protein than they need
TRUE
Children need proportionately more protein than adults
TRUE
Extra protein is needed to support the growth of unborn babies in pregnant women and the production of milk in breast-feeding mother's
TRUE
In general females require more protein than men of the same age and size
FALSE
A large tall person require more protein than a small short person
TRUE
Sick people require extra protein to build antibodies
TRUE
The RDAs for protein include a margin of safety
TRUE
To meet the RDA approximately 40 percent of daily calories should come from protein
FALSE
The Nutrition Facts panel on food products can help people estimate how much protein they consume each day
TRUE
People who exercise occasionally need extra protein to build muscle and supply energy
FALSE
Athletes should consume more calories from protein than from carbohydrates
FALSE
People can avoid health risks by choosing protein sources that are high in saturated fats
FALSE
Protein differs from carbohydrates and fats because of the __________ it contains
nitrogen
Protein makes up about ____________ percent of your body
18 to 20
When proteins change shape and take on new characteristics_____ has occurred
denaturation
To say the body can synthesize a compound means that it can________________ it
make
There are _________ essential amino acids
9
Proteins that defend the body against infection and disease are
antibodies
The liver converts nitrogen waste from proteins into
urea
Plants that can capture nitrogen from the air and transfer it to their protein-rich seed are
legumes
Complete proteins come from ____________ sources
only animal
Two proteins that together provide all essential amino acids are said to be
complementary
Lipids can be grouped into three main classes
triglycerides and phospholipids and sterols
Triglycerides are the major type of fat found in foods and in the body. Triglycerides consist of
three fatty acids attached to a glycerol molecule
Fatty Acids can be saturated or unsaturated
true
Note 
Flashcard (46)