Carbohydrates are chemically composed of _________, ____________ and _____________
-Carbon
-Oxygen
-Hydrogen
When a disaccharide is hydrolyzed in the body, it requires
E) an enzyme and a molecule of water
During the chemical process of condensation,
D) a molecule of water is created and a bond is formed by combining two reactants into a larger product
Of the carbohydrates listed below, only________is not a disaccharide
A) galactose
Of the carbohydrates listed below,__________ is the sweetest
A) fructose
Of the foods listed below,___________provide(s) the richest source of starch
D) grains
The storage form of glucose in animals is ________
-glycogen
The major storage form of glucose in plants is ________
-starch
If glycogen were digested, it would yield
A) glucose only
Which of the following statements about soluble fibre is not true?
A) Common food sources of soluble fibre are wheat bran and brown rice
True/False (support your answer with an explanation)
True
Phytic acid is a non-nutrient component found in cereal grains and seeds that can form complexes with some minerals
Most dietary carbohydrate is digested in the
A) small intestine
Digestion of lactose produces_________and ________
-glucose
-galactose
How does lactose intolerance differ from milk allergy?
Lactose intolerance is caused by a lack of the enzyme lactase, so that lactose-the milk sugar-is left undigested in the gut. Milk allergy is caused by an immune response of the body to milk protein, and is usually seen during infancy. However, both lactose intolerance and milk allergy have similar gastrointestinal symptoms, such as vomitting, abdominal pain, and diarrhea
_________is least likely to be tolerated by a person with lactase deficiency
A) ice cream
The primary function of glucose in the body is to
D) supply energy
Of the effects listed below, only_________is not caused by a low-carbohydrate diet
C) deficiency of ketone bodies
Pentoses are required for the synthesis of
B) nucleic acids
The hormone that lowers blood glucose is
A) glucagon
Glucagon is secreted in response to
A) high blood glucose levels
Gluconeogenesis is defined as the production of
C) glucose from non-carbohydrate sources
Average carbohydrate intake is about__________of total energy
C) 50-55%
Of the trends in carbohydrate consumption listed below,___________has not occured in Canada in recent years
D) a rapid decline in consumption of refined sugar and sugar-containing foods
The recommended intake of carbohydrates is about_________of the total energy consumption
C) 45-65%
The daily carbohydrate requirement for normal body functioning is
D) 50 g
Which of the following is a health benefit of consuming resistant starch?
C) Inhibition of growth of cancer cells in the colon
Health effects of insoluble fibre include the lowering of blood_______and the slowing of_______absorption. Examples of dietary sources are________,__________,__________and_______
-cholesterol
-glucose
-fruits
-oats
-barley
-legumes
Health effects of insoluble fibre include the softening of_________and the_________of the transit time of materials through the colon. Examples of dietary sources are_________,____________, and ___________
