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