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Biology 20 Final Exam Practice Questions with 100- correct answers
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Biology 20 Final Exam Practice Questions with 100- correct answers
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Biology 20 Final ExamPractice Questions
with 100% correct
answers
What is the function of carbohydrates? - answer Provides a fast source of
energy
What is the monomer of carbohydrates? - answer Monosaccharides
What is the function of lipids? - answer Provides a long term source of
energy
What is the monomer of lipids? - answer Fatty acids and glycerol
What is the function of proteins? - answer Transport substances, speed
reactions, provide structural support, enzymes, blood clotting, muscle
contraction
What is the monomer of proteins? - answer Amino acids
What is the function of nucleic acids? - answer Store and transmit
hereditary or genetic information
What is the monomer of nucleic acids? - answer Nucleotides
, What are the three types of muscle and what are the functions? - answer
Skeletal - attached to bones via tendons and allows movement; fixator
muscles
Smooth - allows organs and blood vessels to move/contract; involuntary
muscles
Cardiac - allows heart to relax and contract through involuntary
movement; involuntary muscles
What is the sliding filament theory? - answer The theory that actin
filaments slide toward each other during muscle contraction, while the
myosin filaments are still
What is the function of fast twitch muscle fibers? - answer To react
instantly, work fast, run out fast. Anaerobic. (sprinter, white meat)
What is the function of slow twitch muscle fibers? - answer To react
slowly, work slow, lots of endurance. Aerobic. (marathoner, dark meat)
What is the purpose of the respiratory system? - answer Gas exchange.
Involves the transfer of oxygen and carbon dioxide between the
atmosphere and blood. Oxygen is provided to the tissues, Carbon Dioxide
is removed.
What is the purpose of the circulatory system? - answer Transport O2 and
nutrients to tissues.
Removal of wastes (CO2) from tissues.
Regulation of body temperature.
What is the purpose of the digestive system? - answer To fuel the body
with energy from nutrients
What is the purpose of the excretory system? - answer Elimination of
wastes produced by homeostasis
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