Chapter 4 Flashcards
Cereals story energy in their seeds as starch
True
The original breakfast cereals were developed by the Kelloggs in 1900
True
The difference between a cereal crop and a grain crop is that grain crops include nongrasses
True
Most pulses can be eaten raw
False
Silage is harvested at 20 percent moisture
False
The diet of a ruminant consists of mostly fruit.
False
Flax is an example of a fiber crop
True
Cotton fiber consists mostly of cellulose.
True
An example of a cover crop is corn
False
Bioenergy crops are a renewable energy source
True
Grain sorghum stems are pressed to extract sugars to produce syrup.
False
Common names for plants vary over geographical regions or countries
True
Another name for alfalfa is lucerne
True
Carolus Linnaeus first developed the binomial nomenclature system of plant identification
True
Plant orders are grouped together into families based on floral, fruit, or genetic characteristics.
False
Dicots have two cotyledons within their seeds
True
Grasses that produce edible grains are called
Cereal crops
Which of the following is NOT a cereal crop? A. corn B. wheat C. soybean D. rice
C. soybean
Which of the following animals is a ruminant?
A. pig
B. horse
C. chicken
D. cow
D. cow
Which of the following is NOT a small grain crop?
A. wheat
B. corn
C. barley
D. oats
B. corn
Ruminants, unlike most nonruminants, are able to digest:
cellulose
Which is NOT an example of a root or tuber crop?
A. Irish potato
B. sweet potato
C. cassava
D. peanut
D. peanut
Recreational turf crops include:
Kentucky bluegrass and perennial ryegrass
An example of a sugar crop is
corn
Opium poppy is an example of what type of crop?
a medicinal and psychoactive crop
What percentage of the medicines used today were originally discovered in plants?
50%
Scientific names use what type of nomenclature system?
the binomial system
A scientific name is composed of:
genus and species
Monocots have how many cotyledons?
one
Which of the following plant families are most important agronomically?
A. Rosaceae and Poaceae
B. Magnoliaceae and Rosaceae
C. Magnoliaceae and Poaceae
D. Fabaceae and Poaceae
D. Fabaceae and Poaceae
____________ is defined as the production of crops while sustaining the soil and environment.
Agronomy
Legumes that are grown for their edible, high-protein seeds are known as _________.
Pulses
The most widely grown pulse crop is ___________
Soybean
A crop whose vegetative parts - including stems, leaves, and sometimes seed or grain - are used for livestock feed is called a _________ crop.
Forage
Forages can be stored as _____ or _________.
Hay or silage
__________ is an example of a perennial fiber crop.
Ramie
A crop that protects the soil when summer annuals such as corn and soybean are not present is called a _______ crop.
Cover
A ______________ crop is seeded with another crop to provide erosion control, weed control, and insurance agianst loss of the other crop.
Companion
A crop planted for the purpose of adding nutrients to the soil is called a _____________________ crop.
Green manure
______________ describes the production of energy from biologicial systems.
Bioenergy
____________________ is a compound found in moldy sweet clover hay that has hemorrhagic properties.
Dicoumarol
________________ is a system of organizing all life based on similar genetic or morphological characteristics.
Taxonomy
Plant families end in the suffix _________.
aceae
Potato, jimsonweed, mandrake, and tobacco are members of the ___________________ family.
Solanaceae
Cotton is most commonly used for
Fiber
Wheat is most commonly used for
Cereal
Kentucky bluegrass is most commonly used for
Turfgrass
Soybean is most commonly used for
Pulse
Sugar cane is most commonly used for
Sugar
Switchgrass is most commonly used for
Biofuel
Alfalfa is most commonly used for
Forage
Potato is most commonly used for
Tuber
Coffee (psychoactive crop) has an active ingredient of
Caffeine
Salvia (psychoactive crop) has an active ingredient of
Salvinorin A
Tobacco (psychoactive crop) has an active ingredient of
Nicotine
Peyote (psychoactive crop) has an active ingredient of
Mescaline
Marijuana (psychoactive crop) has an active ingredient of
Tetrahydrocannabinol
Coca (psychoactive crop) has an active ingredient of
Cocaine