Create an account
milk that has been treated with a commercially available lactase preparation undergoes with of the following changes
increase in sweetness
which is an example of the difference between the chemical bonds in starch and those in cellulose?
cellulose bonds are not hydrolyzed by human enzymes
which plays a major role in the breakdown of certain types of dietary fiber in the large intestine?
with few exceptions, all of the following characteristics are shared by water-soluble and water-insoluble fiber except:
neither has an appreciable effect on glucose absorption
characteristic of dietary phytic acid include all of the following except:
it is classified as a fiber
after you and your friend Dolores share pretzels and animal crackers, she announces that she wants to start digesting her food by watching TV. You inform Dolores that:
carb digestion beings in the mouth through the action of amylase, so she has already begun digesting the snacks
for most of the worlds population, what is the effect of aging on the activity of lactase?
declines by 90-95%
what is the chief reason that many people with lactose intolerance can consume foods containing some lactose without suffering any symptoms
a change occurs in the GI bacteria
why are hard cheeses lower in lactose than soft cheeses?
more lactose is removed during manufacturing
among the following population groups, which shows the highest prevalence of lactose
Which of the following ingredients listed on food labels would be acceptable to the person who is highly intolerant to lactose in the diet?
what is the minimum daily amount of dietary carbs necessary to spare body protein from excessive breakdown
gluconeogenesis is the term that describes the synthesis of
glucose from a noncarbohydrate substance
you have just finished a light breakfast of toast and jelly, Which of the following series of events proceeds upon digestion/absorption of the meal until it is near time for lunch?
blood glucose rises, the pancreas releases insulin, glucose is taken up by the cells through the action of insulin, blood glucose levels decline
when blood glucose concentration falls, what pancreatic hormone is secreted to stimulate release of stored glucose?
which of the following is a typical response of the body to changes in blood glucose
blood glucose levels that fall too low signal the release of glucagon
when you are under physical stress, what hormone is released quickly to stimulate an increase in blood glucose concentration
in the time between meals, what organ releases glucose to help maintain normal blood glucose levels
a person eating lots of white bread, white rice, and ready to eat cereals would have a diet with a glycemic index that is
which of the following is a feature of the condition hypoglycemia?
it occurs rarely in otherwise healthy people
which of the following is a feature of diabetes
dietary management should focus on total carb intake rather than the type of carb consumed
what term describes how quickly glucose is absorbed from a food after ingestion, how high blood glucose rises as a result, and how quickly blood glucose returns to normal
which of the following are characteristic of the conditions diabetes and hypoglycemia?
both benefit from the inclusion of fiber-rich foods and consumption of smaller, more frequent meals
your nephew Jimmy, who is 10 years old, has been giving himself a shot in the thigh every day for the past year. He confides in you that he craves candy but was told by his parents that he can only eat sugar free snacks. From which of the following conditions does Jimmy most likely suffer
Type 1 diabetes
which of the following statements describes the glycemic index of foods
a way of ranking foods according to their potential to increase blood glucose
in a person with type 2 diabetes, which of the following foods would ordinarily promote the least favorable glycemic effect?
what is the name of the sweetener consisting of a mixture of glucose and fructose formed by chemical hydrolysis of sucrose
which of the following recommendations will help to reduce the incidence of dental caries when the diet contains sugary foods
eat a sugar snack all at one time, rather than in parts through out the day
which of the following describes a relationship between carb intake and dental health?
eating a sugary dessert at the beginning of a meal, rather than the end is less likely to promote dental caries
You have just arrived at a lunch buffet and are faced with many choices. Although each of the following portions provides about 200 kcalories, which is the most nutrient dense?
3 slices of whole wheat bread
based on height, weight, age, and physical activity level, you have calculated that you should be consuming about 2,200 kcaloreis per day. which of the following portions is closest to the discretionary kcalories allowed in the USDA food guide for added sugars in your diet?
10 teaspoons of brown sugar
according to the current dietary recommendations, what is the maximum percentage of total energy intake that added sugar should contribute in the diet?
all of the following are features of artificial sweeteners except:
they provide about 1/2 the energy of carbs plus small amounts of vitamins and minerals
All of the following components are apart of the chemical structure of aspartame except
among the alternative sweeteners available in the US, which has a structure that integrates chlorine atoms?
which of the following is a characteristic of the sugar replacers (sugar alcohols)
they have a low glycemic index
which of the following is not a classification for the food additives mannitol, sorbitol, and xylitol
which of the following is known to correlate most strongly with reduced risk of deaths from heart disease
modifying a diet that by substituting complex carbs for pure sugars results in a diet that is higher in:
NOT a characteristic of a high fiber diet
reduce risk of lung cancer, but increase risk of breast cancer
according to most dietary guidelines, what percent of the days total energy intake should be furnished by carbs
Allan is 20 years old and asks for help in selecting a fiber rich diet, after he ranks the kinds of foods he likes to eat, you provide him with a list of food items consisting of
1 cup bake beans, 1 medium apple, 1 banana, 1 1/2 cups oatmeal, 1 ounce of 100% bran cereal, and 1/2 of chopped carrots
according to the american dietetic association, what is the daily value for fiber when expressed in grams per 1000 kcal
11.5 grams/1000 kcals
which of the following is a typical response in people following a low carb diet?
total weight lose after one year is the same as people on conventional diets
which is not associated with the regular consumption of sugary beverages?
the fructose stimulates excessive release of insulin, which suppresses appetite
a compound composed of carbon, hydrogen, and oxygen with three fatty acids attached to a molecule of glycerol, would be known as:
which of the following structural features of fatty acids determines their susceptibility to spoilage by oxygen?
number of double bonds
which of the following is a characteristic of lipids?
corn oil and sunflower oil are more prone to spoilage than palm kernel oil
when stored at room temp in loosely capped containers, which of the following dietary lipids would turn rancid in the shortest time?
which would be least effective at preventing oxidation of the polyunsaturated fatty acids in processed foods?
addition of phosphorus
methods used by food processors to stabilize the lipids in the food products include all except:
addition of oxidizing chemicals
characteristics of hydrogenated oils include all except
products containing them become rancid sooner, contributing to a shorter shelf life
which of the characteristics is shared by olive oil and canola oil?
both contain high levels of monounsaturated fatty acids
the food industry often carries out the process of the hydrogenation on which of the following lipids
conjugated linoleic acid
a fatty acid with the chemical make-up of linoleic acid but with a different configuration
oil that is partially hydrogenated sometimes changes one or more of its double bond configurations from
cis to trans
which of the following is descriptive of fatty acid configuration?
naturally occurring trans-fatty acids are found in dairy products
describes a feature of cis-fatty acids and trans fatty acids
in the body, trans-fatty acids are metabolized more like saturated fats than like unsaturated fats
which of the characteristics are shared by cholesterol and lecithin?
both are synthesized in the body
features of cholesterol
synthesized by the body, about 10% of the body's total cholesterol is extracellular, its daily value is 300 mg, precursor for bile and vitamin D synthesis
characteristic of the lipase enzyme
salivary gland lipase (lingual lipase) plays an active role in fat digestion in infants
how is soluble fiber in the diet thought to help lower blood cholesterol level?
it enhances excretion of bile leading to increased cholesterol turnover
after a meal, most of the fat that eventually empties into the blood is in the form of particles known as
your aunt gladys
oatmeal is high in soluble fibers that trap bile, causing the body to use more cholesterol for bile replacement
what lipoprotein is responsible for transporting cholesterol back to the liver from the periphery
high density lipoproteins
aspirin works to reduce symptoms of infection or pain by retarding the synthesis of
feature of adipose cells lipoprotein lipase
the enzyme works to promote uptake of circulating triglycerides into storage triglycerides
feature of fat metabolism
triglycerides in the blood must first be broken down to monoglycerides, fatty acids and glycerol primer to uptake by the adipose cells
function of adipose cell hormone-sensitive lipase
hydrolyzes triglycerides to provide fatty acids for other cells
following dietary fatty acids the have been found the raise blood cholesterol level by the least amount
results of blood tests that reveal a persons total cholesterol and triglycerides are called a
important factors in the selection of margarine product include all of the following except
it should contain primarily omega-3 fatty acids
following sources of lipids should be substituted for saturated fats to help lower blood cholesterol levels
a feature of fat intake and health
intake of saturated fat raises blood cholesterol more than the intake of cholesterol
characteristic of the blood cholesterol level
it can be lowered more effectively by reducing dietary intake of saturated fat than of cholesterol
characteristic of eggs in nutrition
consumption of one egg per day by most people is not considered detrimental
regularly consuming fish like shark, king mackerel, and sword fish is risk for ingesting potentially toxic amounts of
high intakes of omega 3 polyunsaturated fatty acids are known to increase the risk for all except:
inflammation of the pancreas
dietary balance of omega 3 and omega 6 fatty acids recommended intake of omega 3 fats for a person who consumes 30 grams of omega 6 fats
no specific recommendation based on omega 6 intake
likely explanation of imbalance between omega 6 and omega 3 lipids in the US diet
high intakes of meat and low intakes of fish
recognized relationship between dietary fat and cancer
fat from milk does not increase risk of cancer
according to DRI, the upper limit of fat that may be consumed by a healthy person requiring 3000 calories per day
according to dietary guidelines what should be the maximum total fat intake as a percentage of energy intake
Jenny: chooses fat free dessert, analysis of her decision
fat free products have so much added sugar that the calorie count can be as high than the regular fat product
according to dietary guidelines, the max daily intake of cholesterol on a 2500 calorie diet should be
how many grams of fat would be contained in 800 k calorie meal that provide 50% of energy from carbs, 20% from protein and the remainder from fat
27 grams of fat
1200 calorie meal contains 10 grams of saturated fats, 14 grams of monounsaturated fats and 20 grams of polyunsaturated fats, what % of energy is supplied by the lipids
features of dairy products consumption except
fat free milk is lower in calories but also lower in protein and calcium than whole milk
characteristic of the lipid content of livestock
(free-range) animals contain more omega 3 fats in the meet than grain feed animals
appropriate dietary advice for reducing fat intake
limit intake of all fried foods because they contain abundant fat
John friend college graduation select certain foods, fat replacers olestra
contains a fat like substance that the body's enzymes cannot break down and therefore cannot be absorbed
food labels about fat content per serving include all except
the % of total kcalories contributed by fat
groups with highest and lowest rates of heart disease both consumed at least 40% of calories from fat but the healthy group was found to ingest more
most nuts, the distribution of saturated and unsaturated fats in order of highest to lowest amounts
monounsaturated, polyunsaturated, saturated
feature of nut consumption and improve cardiovascular health
benefit may be related in part to the high content of monounsaturated fats and low content of saturated fats
of the total fat content of most commonly eaten nuts in the US, what is the approximate percentage of monounsaturated fat
1% increase in dietary saturated fatty acids will raise the risk of heart disease by what percentage
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together