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WorksheetsFood Science Mid-Term
Total questions: 120
Worksheet time: 3600secs
Hydroponic crops are grown
In sandy soil
Within containers that are suspended
With roots suspended in liquid nutrient solutions
Under artificial lights
National Aeronautics and Space Administration (NASA) program discoveries include
Freezer-to-oven cookware
Vacuum Packaging Techniques
Teflon Coatings
All of the Above
Quick-freezing ice crystals are very large and can lead to poor food taste, appearance, and nutritive value?
True
False
Food Security means keeping foods safe for Americans to consume?
True
False
Who is responsible for the overall security of the nation and the American people?
NASA
FDA
USDA
DHS
Global trading can bring safety risks to a nation's food supply?
True
False
The timeline to turn an idea into a new product can take
1 to 2 years
2 to 3 years
2 to 4 years
3 to 5 years
Who has the burden to increase the food production for the expanding world population?
Sensory Specialist
Reach Chef
Dietetic
Food Scientist
Food substitutes can help people with dietary changes like diabetes and heart disease have more food choices?
True
False
Many food organizations have agenda that are political in nature and may result in biased reporting?
True
False
Biotechnology is the process of altering organisms to create new or improved products?
True
False
The USDA organic seal on a food product means it is certified organic and has ___% or more organic content?
100%
95%
80%
70%
What is the world's largest organization of food and nutrition professionals?
FCCLA
International Food Information Council
USDA
American Dietetic Association
The International Food Information Council is a nonprofit organization?
True
False
Food labeling regulations and compliances are controlled by
IFIC
ADA
FDA
Both FDA and USDA
Manufacturers that do not follow regulations may
be fined
face recalls
forced to close production plants
all of the above
Natural and organic terms are interchangeable and mean the same in the world of food?
True
False
The FDA has a clear and concise definition of the term "natural" when it appears on labeling?
True
False
Producers of organic livestock must
Use 100% organic feed
Provide access to the outdoors
Meet all animal health and welfare sandards
All of the above
Prior to World War I most people could preserve foods only by
dyring
salting
pickling
all of the above
Since a food label reads "organic" you should assume that the product is very nutritious and healthy for you?
True
False
In the 1800's what was the percentage of farmers?
5 out of 10
2 out of 10
9 out of 10
1 out of 10
With technology today two farmers can produce enough food for?
25 people
50 people
75 people
100 people
In the development of food the women and children of early settlers help by
plowing
clearing land and debris
seraching for fruits and nuts
weeding
The canning process was invented in ____?
America
England
Russia
France
In 1812 which city opened the first canning plant in America?
Chicago
Jamestown
New York
Atlanta
What event encouraged development and acceptance of food products?
American Revolution
Civil War
World War I & II
Korean War
With mass food production and canning what became a widespread problem?
Adulteration
Pricing
Delivery of food products
Availability of food
What was established in 1862 to oversee food production and agricultural research?
FDA
USDA
CDC
CEC
Publication that offers safe food handling recommendations to anyone seeking information on the topic?
US and World Report
Everday Food with Racheal Ray
FDA's Food Code
Taste of Home
The psychological factor linked with unpleasant food memories is believed to be protective mechanisms of the
stomach
small intestines
taste buds
brain
Sweet tea is a cultural practice hat would mostly be found in which U.S. region
Southeastern Region
Northeastern Region
Southwestern Region
Northwestern Region
Food Scientist conduct a subjective evaluation that is called ?
Food Safety
Nutrition Value
Sensory Evaluation
Caloric Intake
Food preferences of most children are learned by their immediate surrounds as well as the foods exposed to them
True
False
Brand name foods can cause bias in food products and are difficult for the marketplace to overcome
True
False
Supertasters can have as many as ____ taste buds per square centimeter on the tongue?
500
800
1100
1500
Sensory Evaluation is the human analysis of
Taste
Smell
Sound
All of the above
Nontasters have been found to have as few as ____taste buds per square centimeter on the tongue?
20
30
40
50
Food scientist have many tools that accurately measure whether people will like or dislike a food?
True
False
Fluctuations in female hormone cycle during pregnancy could partially account for changes in food cravings and preferences?
True
False
This texture refers to how well one part of food slides past another without breaking
Firmness
Chewiness
Brittleness
Consistency
This sensory characteristics is what you see
Texture
Flavor
Appearance
The odor of the food is called
Appearance
Taste
Aroma
Texture
This texture refers to the food's resistance to pressure
firmness
chewiness
brittleness
graininess
Sensory Evaluations are very important;however, what the consumer desires is most important?
True
False
This sensory starts in the mouth with the taste buds
Apperance
Aroma
Taste
Texture
A penetrating probe is used to determine the quality of
vegetables
fruits
beef
grains
Odors reach the olfactory bulb through
nose and back of the mouth
nose and eyes
back of the mouth and ears
back of the mouth and eyes
Sour foods are evaluated in terms of their
appearance
astringency
aroma
texture
Color of food can be measured exactly through a
probe
lights
colorimeter
compression machine
Food's taste is related to the shape of the molecules in the food?
True
False
When researchers do not want the color of the food to influence a taste panel they incorporate the following
blindfolds
private taste panels
colored lights
extra large tables
This texture refers to the size of the particles in the food product
chewiness
graininess
firmness
consistency
The texture of a food cannot be evaluated objectively by measuring its resistance to force?
True
False
The nose is capable of identifying
50 to 60 smells
100 to 200 smells
500 to 800 smells
1,000's of smells
Appearance of a food is evaluated on both the exterior and interior parts of the product
True
False
Babies are born preferring
sweet taste
sour taste
bitter taste
salty taste
This texture is the thinness or thickness of a product and can be measured in terms of pourability
graininess
consistency
brittleness
chewiness
Texture of a food can cause a reaction in a person whereas they despise the food based on the texture rather than the taste?
True
False
If the olfactory bulb is stimulated more the intensity of the favor experience will intensity?
True
False
Taste and aromas can linger so it's important to perform which aster each taste sample?
sip cold water
eat chocolate
eat a small cookie
sip warm water
An untrained taste test panel is best for which scenario?
A food scientist developing a new product
A state employee grading cheese
A manufacture determining if a product will sell
A coffee industry recruiting supertasters
The number of samples that a taste tester can evaluate at one time?
2 to 3
4 to 5
7 to 9
12 to 15
The maximum sweetness score for table sugar is recorded at what room temperature
55 degree
63 degree
41 degree
77 degree
Which factors could sway a tester
The environment of the tasting room
Any psychological biases
Influences from other tasters
All of the above
Group of people who evaluate the flavor, texture, appearance, and aroma of food products
Food Scientist
Nutritionist
Taste Test Panel
Dietitian
Taste test panel only use professional trained testers to determine sensory ratings?
True
False
During a taste test panel a tester should refrain from
Making nonverbal signs to other testers
Commenting on the taste of the food
Using body language to express feelings about food tested
All of the above
During a taste test it is an acceptable practice to allow other aromas in the room?
True
False
Food manufacturers may want to know why a panel member gives a product a low rating to improve the sample
True
False
All sources of energy in your diet are organic compounds?
True
False
Scientists have discovered that all living substances contain carbon?
True
False
Carbohydrates, fats, and proteins are examples of inorganic compounds
True
False
Organic compound examples are table salt, water, and minerals
True
False
Mixtures can be categorized as
Homogeneous
Heterogeneous
Both Homogeneous and Heterogeneous
Chemical changes occur whenever new substances with different chemical and physical properties are formed
True
False
Physical changes involve changing shape, physical state, size or temperature without changing the chemical identity
True
False
Mixtures are substances that are put together but not chemically combined
True
False
An example of homogeneous mixture is
Vegetable soup
Chili
Mayonnaise
An example of heterogeneous mixture is
Mayonnaise
Soft drink
Vegetable Soup
A _____ bond is the force that holds two atoms together?
Covalent Bond
Ionic Bond
Chemical Bond
_____ bonds are formed when atoms share one or more pairs of electrons
Covalent Bond
Ionic Bond
Chemical Bond
Substances with this type of bond will tend to dissolve in water
Covalent Bond
Ionic Bond
Chemical Bond
When two or more elements have chemically combined they are called
Covalent Bond
Ionic Bond
Chemical Bond
Compounds
What does the symbol NaCl represent
Table salt
Baking soda
Water
Corn Starch
Full shells are extremely stable and less likely to form a chemical bond?
True
False
Outer shells that lack one electron will try to gain an electron
True
False
_____bonds have electrons that transfer from one atom to another
Covalent bond
Ionic Bond
Chemical Bond
What does the symbol H20 represent
Table Salt
BAking Soda
Water
Corn Starch
Atoms are more stable when the outer shell of electrons are full
True
False
There are ____naturally occurring elements known on earth
30
60
90
120
The smallest unit of any elemental substance that maintains the characteristics of that substance
Proton
Neutron
Atom
Element
A subatomic particle that has a positive electrical charge?
Neutron
Proton
Element
Orbital
The symbol for many elements
The last letter of the name of the element
The first letter of the name of the element
The first and last letter of the name of the element
A subatomic particle that has an electrically neutral charge?
Neutron
Proton
Element
Orbital
Electrons prefer to move
singularly
in pairs
groups of three
The space occupied by a pair of electrons in an atom is called
Nucleus
Element
Protons
Orbital
The number of protons in the nucleus is called
Atomic mass
Atomic number
nucleus
orbital
Some elements symbol come from other languages for example K=
Iron
Carbon
Potassium
How does energy from the sun reach the earth?
Conduction
Convection
Radiation
All of the above
A second letter from the name of the element is added to identify repeating letters? Ex: Calcium = Ca
True
False
Metal is a
Microwave
convection
conductor
insulator
Wood is a
microwave
convection
conductor
insulator
Heat always moves from
A warmer place to a cooler place
A cooler place to a warmer place
When you heat a metal strip at one end, the heat will not travel to the other end?
True
False
When metal is heated the electrons gain _____energy?
Potential energy
external energy
Internal energy
Kinetic energy
Which type of current sets up in a frig?
convection current
conduction energy
Radiant energy
kinetic energy
In which of the following are particles closest together?
Solids
Liquids
Gases
Fluids
Which is the best surface for reflecting heat radiation
Shiny White
Dull White
Shiny black
dull Black
Which is the best surface for absorbing heat radiation
Shiny white
dull white
shiny black
dull black
The transfer of heat by the motion of fluids such as air or water
convection
conduction
radiation
The transfer of heat when molecules collide with one another
Convection
Conduction
Radiation
Suspend a food in boiling water for a short time to kill the enzymes in the food.
Baking
pasteurization
blanching
The technique of prolonged cooking of food by dry heat acting by convection, and not by radiation, normally in an oven
Radiation
Blanching
Baking
Pasteurization
Refrigeration is a type of cold processing when the temperature is 40 or below therefore slowing the growth of bacteria
True
False
Applying a low heat to destroy pathogenic microorganisms and stop enzyme activity
Baking
blancing
pasteurization
Placing to many pans in an oven can block hot air circulation?
True
False
Freezing may change texture of foods due to large formation of ice crystals.
True
False
Freezer burn is when foods lose moisture becoming tough and dry?
True
False
Frozen foods can be kept for many years in a frozen state?
True
False
