Nutrition
The release of food from the stomach into the small intestine is regulated by the
Pyloric Sphincter (valve)
All of the following statements are true about the liver except?
The liver store bile and releases it to the small intestine
which of the following statements is true about the gallbladder
it store bile and releases it into the small intestine
___ acid is an essential fatty acid
linoleic
which of the following statements about lipids is true
lipids dissolve in organic solvents such as alcohol and acetone
a chylomicron is a type of
lipoprotein
what happens when the gallbladder is removed
liver still produces bile but instead of it being stored in the gallbladder, it secretes it to the intestines
Accessory organs in the digestive system
liver, gallbladder and pacreas
which of the following characteristics or conditions is a major risk factor for CVD?
male sex
peristalsis is a form of
mechanical digestion
Which one of the following represents the correct order through which food passes through
mouth, pharynx, esophagus, stomach, small intestine, large intestine
peristalsis and segmentation both occur as a result of __ contractions
muscular
what are the primary functions of bicarbonate ions in the gastrointestinal tract
raise pH and neutralize acids
All single bond carbon atoms are
saturated fats
Which of the following statements describes pancreatic lipase
secreted into the duodenum and is necessary for fat digestion
The release of bicarbonate ions by the pancreas is stimulated by the hormone
secretin
the ileocecal valve connects
small intestine to the large intestine
the body uses cholesterol to make
steroid hormones
lipids do not
stimulate red blood cell production
Cholecystokinin is a hormone that
stimulates the gallbladder to release bile into the small intestine
hunger and satiety are controlled by the nervous system
true
mastication occurs in the mouth
true
the process of hydrogenation makes unsaturated fats more saturated
true
Where are the salivary glands located
underneath and behind the tongue
oleic acid
is a monounsaturated acid
According to the AMDR recommendations, alpha-linoleic acids should provide___ of a persons total daily energy intake
0.6-1.2%
under normal conditions the body absorbs up to __% of nutrients
97%
Which of the following statements would be true if a significant length of the small intestine stopped working or got damaged?
Digestion and absorption will be affected
Lecithin is
a type of phopholipid
to reduce risk of CVD
be more physically active
the liver recycles bile salts to make new __
bile
the liver uses cholesterol to make
bile
all of the following represent secretion of the digestive tract except
bolus
in facilitated diffusion, what helps nutrients cross the membrane wall
carrier proteins
HDL
carries cholesterol away from the tissues
Cholecystokinin
cause the pancreas to release lipids and the gallbladder to contract
which of the following foods naturally contain cholesterol
chicken
When the epiglottis doesn't move correctly, it can lead to
choking
order of nutrient absorption
digestion, absorption, transport, elimination
to make a mixture that doesn't separate into watery components Victor should add
egg yolks
Bile enters the duodenum of the small intestine through the pancreatic duct
false
Chemical digestion does not occur in the stomach only mechanical
false
Peptide YY is a hormone that signals hunger and ghrelin signals fullness
false
The ascending colon is found on the left side of the abdominal cavity
false
The pancreas produces bile, hormones, and digestive enzymes
false
The stomach has a constant fixed capacity-the volume never changes.
false
if the epiglottis is closed, food cant enter the esophagus
false
the anal canal has a voluntary sphincter formed by the smooth muscles only
false
most lipids have __ in their chemical structures
fatty acids
omega-3 fatty acids
fish like salmon are a rich source of omega-3 fatty acids
a polyunsaturated fat
has 2 or more double bonds between carbon molecules
a fatty acid
has a chain of carbons bonded to each other and to hydrogen atoms
If necessary, a 23 year old should
have a lipoprotein profile performed on a sample of his blood
major functions of lipids include
help int he production of steroid hormones cushioning of the body against bumps and blows serves as an energy source
Water-soluble nutrients are carried to the liver from the intestine via which of the following
hepatic portal vein
having a high level of __ may increase a persons risk of CVD
homocystein
Which is true about fatty acids
in nature, fatty acids typically have even numbers of carbon atoms
hypertention
increases the risk for CVD
which of the following characteristics is a major risk factor for cardiovascular disease
increasing age
in the body, lipids
insulation against cold temperatures
