Biology Questions and Answers
absorption in 450 nm wavelength
(blue).
- What is the path followed
by the energy absorbed by
plants to be used in
photosynthesis?
The energy source of photosynthesis is
the sun, the unique and central starour planetary system. In photosynthesis of (^)
the solar energy is transformed into
chemical energy, the energy of thechemical bonds of the produced glucose (^)
molecules (and of the released
molecular oxyglucose is then stored gen). The energy ofas starch (a (^)
glucose polymer) or it is used in the
cellular transferred to ATP moleculrespiration process andes. ATP is (^)
consumed in metabolic processes that
spend energy (for example, in activetransport across membranes).
- Of what substance is the
plant cell wall made? Of which
monomer is it made?
The plant cCellulose is a polymer whose moell wall is made of cellulose.nomer (^)
is glucose. Tglucose, like here are other polymers oglycogen and starch. f
- What is the function of the
plant cell wall?
The plant cprotective fell wall has structuralunctions. It plays an and
important role in the constraint of the
cell size, preventing the cell to break
when it absorbs a lot of water.- What are plant cell
vacuoles? What are their
functions? What is the
covering membrane of the
vacuoles called?
Plant cell vacuoldelimited by membranes withies are cell structuresn which (^)
there is an aqueous solutiovarious substances like carbohydratesn made of (^)
and proteins. In young plant cells many
small vacuoles can cells the most part obe seen; withif the internal arn adultea
of the cell is occupied by a central
vacuole.
The main function osmotic balance of the intracellularof the vacuoles is the
space. They act as “an external space”
inside the cell. Vacuolrelease water in response to the cellulares absorb or (^)
metabolic necessities by increasing or
lowering the conceparticles dissolved in ntration ofthe cytosol. osmotic
Vacuoles also serve as a storage place
for some substances.
The membrane that delimits the
vacuoles is called tonafter the osmotic function ofoplast, named the
structure.
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