Macronutrients

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