Biology Questions and Answers
- What are some evolutionary
advantages of animals with
complete digestive tube?
The completanimals to continuously feed themselve digestive tube allows (^) es
without waiting feliminated before beginning theor residuals to b e
digestion of new foods. In this way the
absorption is possible anof larger d therefore bigger andamount of nutrients
more complex species can develop.
Digestive tumake digestion mbes with ore efficient since thtwo openings alsoey (^)
provide different sites with differentphysical and chemical conditions
(mouth, stomach, bowels) for the action
of different complemenzymatic systems. entary digestive
- What is mechanical
digestion? In molluscs,
arthropods, earthworms, birds
and vertebrates, in general,
which organs respectively
participate in this type of
digestion?
Mechanical difragmentation ogestion f food aided byis the (^)
specialized pteeth, previous to extracellullarhysical structures, such as
digestion. The mechanical
fragmentation oenzymatic reactions bef food helps digestivecause it provides (^)
a larger total area for the contact
between enzymes and their substrates.
In some molluscs, the mechanical
fragmentation is doteeth-like structure). Somne by the radula e arthropods,(a (^)
like lobsters and dragonflies, have
mouthparts that make mechanical
digestion of food. In earthworms and
birds, thby an internal muscular ore mechanical digestion is madgan. In e
mandibulate vertebrates there are
mandibles and chewitriturate food previous to the chemicalng muscles to (^)
digestion.
- Concerning extracellular
digestion what is meant by
chemical digestion?
Chemical digestion is the series of
enzymaticmacromolecules into reactions to bsmallerreak ones. - Which type of chemical
reaction is the breaking of
macromolecules into smaller
ones that occurs in digestion?
What are the enzymes that
participate in this process
called?
The reactions odigestion are hydrolysis reactions, i.f the extracellular (^) e.,
breaking of molecules with thwater. The enzymes that participate ine help of (^)
digestion are hydrolytic enzymes.
- Which organs of the body
are part of the human
digestive system?
The digestive system,“systema digestorium”, also known as or
gastrointestinalthe digestive tu system, is compbe organs plus theosed of
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