every part of human body requires correct answers nutrients from food for energy, maintenance, and growth
food correct answers composed of complex substances that must be broken down to simpler forms for cell use
the cell correct answers ultimate destination for food's nutrients
three i...
Lutz's Nutrition Chapter 9 Digestion,
Absorption, Metabolism, and Excretion
every part of human body requires correct answers nutrients from food for energy,
maintenance, and growth
food correct answers composed of complex substances that must be broken down to
simpler forms for cell use
the cell correct answers ultimate destination for food's nutrients
three interrelated processes that act on food to prepare it for use correct answers
digestion, absorption, and metabolism
alimentary canal correct answers long, muscular tube that extends through body from
mouth to anus
digestion takes place in the correct answers alimentary canal
excretion correct answers elimination of indigestible or unusable substances
during digestion correct answers food is broken down mechanically and chemically in
GI tract into forms small enough for absorption into blood and lymphatic system
after absorption correct answers nutrients usually are transported to liver, where they
may be adjusted to suit body's needs
metabolism correct answers sum of all physical and chemical changes that take place
in body, determines final use of individual nutrients as well as meds
alimentary canal includes correct answers oral cavity, pharynx, esophagus, stomach,
small intestine, large intestine
sphincters correct answers muscle rings that separate segments of alimentary canal;
act as valves to control passage of food
mucosa correct answers lines alimentary canal and secretes mucus; secretes digestive
enzymes of stomach and small intestine
chemical digestion correct answers enzymes break down food into smaller molecules
chemical reaction involved in digestion correct answers hydrolysis of nutrients
hydrolysis correct answers chemical reaction; substance is split into two smaller and
simpler substances by addition or taking up of elements of water
hydrochloric acid correct answers electrolyte that performs many functions necessary
to digestive process
electrolytes correct answers substances that conduct electric current in solution
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