Biology Questions and Answers
- Photosynthesis rate varies
according to the photic energy
intensity. Does the same occur
in aerobic respiration? What
happens to the glucose
balance as a result of these
variations?
In a photosynthetic being the aerobic
respiration rate or equal to the photosynthesiscan be superior, in rate.ferior
Respiration rate depends on the
energetic needs of the plant while thephotosynthesis rate varies, as other
conditions are maintained, with the
variation of light energy.
In a situation in which the respiration
rate is greater tharate glucose consumn the photosynthesisption is higher than (^)
glucose production. In a situation in
which the photosynthrespiration rate is lowesis rate there is er than
accumulation of glucose (positive
balance). Irates are equal all molecular on a situation in which thxygene (^)
produced by the photosynthesisis used in respiration and all carb processon
dioxide liberated by respiration is
consumethere is no positive balad in photosynthesisnce of glucose and so (^)
nor depletion of carbohydrate stores.
- What is the compensation
point? What is the implication
of the compensation point for
the plant growth?
The (photic) compephotic energy intensity under whichnsation point is the
aerobic rphotosynthespiration ratesis rate. In this situation alle equals (^)
produced glucose is consumed and
there is no incorporation of material into
the plant and thus tdiscontinues. he plant growth
- Why is the carbon dioxide
concentration a limiting factor
of the photosynthesis
process? When the carbon
dioxide concentration is
increased indefinitely is
photosynthesis also increased
indefinitely?
The availabilitylimiting factor for the photosynthesis of carbon dioxide is a
process because this gas is a reagent of
the reaction.
Since enzymes catalyze thorganic molecules with care building ofbon atoms
from carbon dioxide photosynthesis
stops as soosaturated, i.e., n as thwhen all these enzymes becomeeir activation
centers are bound to their substrates. In
that situation adioxide concentration willn increase not increaseof the carbon
the photosynthesis rate. - Why do some trees lose
their green color in the
autumn?
In autumn nights longer thus tdays become shortehere is a reductionr and (^)
of the photosynthesis rate and some
plants prepare themselves fowinter making nutrient stores. Ir then this (^)
process, nutritowards storage ents frsites: limbs, trom the leaves travunk andel
roots. With less chlorophyll produced in
leaves the plant fades.typical green color of the
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