multiple choice questions Flashcards
Which statement is incorrect regarding lipids?
a) Unsaturated fats come mostly from plants and are liquid at room temp (oils)
b) trans fats are made industrially from saturated fats
c) lipoproteins are vehicles used to transport lipids in the circulation
d) omega-3 and omega-6 fatty acids are unsaturated
e) cholesterol circulating in blood is mainly made by the liver
b) trans fats are made industrially from saturated fats
Proteins are digested by enzymes produced by…
a) mouth, stomach, intestine
b) stomach, liver, small intestine
c) small intestine, mouth, liver
d) pancreas, stomach, small intestine
e) pancreas, stomach, liver amd large intestine
d) pancreas, stomach, small intestine
A triglyceride consists of …
a) glycerol + 3 fatty acids
b) amino acid, carboxyl group and side chain
c) 1, 2 or more hexoses
d) amino acids linked with peptide bonds
e) glycerol + phospholipid
a) glycerol + 3 fatty acids
Which statement is correct regarding vitamins?
a) cooked fruits and vegetables contain less vitamins than raw ones
b) vitamins are not stored, excess is eliminated via urine
c) all vitamins must be obtained from the diet
d) vitamins A, C, E, K are lipid-soluble
e) vitamins are never toxic of have harmful effects
a) cooked fruits and vegetables contain less vitamins than raw ones
Which statement is correct about fibers?
a) Fibers do not provide energy for the body
b) most fibers are polysaccharides
c) a meal rich in fibers prevents glycemia from increasing rapidly
d) fibers make you feel full for a longer time after a meal
e) all of the above
e) all of the above
Which of the following pathways are catabolic?
a) lipolysis, glycogenolysis and beta-oxidation
b) glycolysis, lipogenesis and gluconeogenesis
c) ketogenesis, lipolysis and glycogenesis
d) lipolysis, glycogenesis and beta-oxidation
e) gluconeogenesis, ketogenesis and lipogenesis
a) lipolysis, glycogenolysis and beta-oxidation
Which pathways are anabolic?
- glycolysis
- ketogenesis
- lipogenesis
- glycogenesis
- gluconeogenesis
- a verifier
Enzymes are organic catalysts that…
a) alter the direction in which a chemical reaction proceeds
b) are destroyed once they catalysed a reaction
c) increase the speed of a chemical reaction (by lowering its activation energy)
d) increase the activation energy of a chemical reaction
e) all of the above
c) increase the speed of a chemical reaction (by lowering its activation energy)
It helps with calcium absorption in the GI tract:
Vitamin D
Its deficiency leads to scurvy:
Vitamin C
True or False?
The following terms all refer to lipids:
- triglycerides
- phospholipids
- steroids
- fatty acids
TRUE
Name the activity of digestion: Segmentation in the small intestine
Mechanical Digestion
Which of the following is not characteristic of the colon?
a)
b)
c) It is the main site for monosaccharides absorption
d)
e)
c) It is the main site for monosaccharides absorption
A deficiency of this vitamin is associated with night blindness;
vitamin A
What is the mineral found in a hemoglobin protein?
Iron (Fe)
True or False?
An individual’s basal metabolic rate corresponds to the energy needed to maintain his essential body functions working.
TRUE
True of False?
Macronutrients provide 9kcal of energy per gram to the body while micronutrients provide 4 kcal of energy per gram
FALSE
fat = 9kcal
protein and carbs = 4kcal
It is needed to have normal blood clotting
Vitamin K
True of False?
Body mass idex (BMI) uses an individual’s weight and height to determine his/her weight status (normal, overweight, etc.)
TRUE
True of False?
The esophagus is an intermediate organ between the pharynx and the stomach in which food travels downward forced by gravity
FALSE food travels down by perilstaltic waves
True of False?
There are 3 main enzymes that digest lipids:
- lingual lipase
- gastric lipase
- pancreatic lipase
TRUE
Name the activity of digestion: A fatty acid travels from the intestinal lumen to a lacteal
Absorption
Name the activity of digestion: swallowing a bolus
Propulsion
Obstruction of the common bile duct impairs digestion by reducing the availability of…
a) bile and HCl
b) pepsin and intestinal juice
c) pancreatic juice and intestinal juice
d) pancreatic juice and bile
e) gastric juice and bile
d) pancreatic juice and bile
One of the building blocks of healthy bones and teeth is:
Calcium
True or False?
All types of diabetes mellitus (I, II, III) are caused by pancreatic cells that cannot produce insulin.
FALSE
only type 1 is caused by lack of insulin
type 2 = environmental factors (obesity)
type 3= pregnant women
True or False?
Antioxidand vitamins neutralize free radicals and/or peroxides and prevent cellular damages
TRUE
Name the activity of digestion:
Starch breakdown by salivary amylase
Chemical Digestion
