Biology Questions and Answers
As the name indicates, the cytoskeleton
is responsiblnormal shape of the cell; it also actse for the support of the (^) as
a facilitator for substance transport
across the cell and for the movement ofcellular organelles. For example, the
sliding between actin-containing
filaments and the protein mycreates pseudopods. In cells of osinthe (^)
phagocytic defense system, like
macrophages, cytoskeleton responsible for the plasma membraneis (^)
projections that engulf the external
material to by the cell.be interiorized and attacked
- What are chloroplasts?
What are the main function of
chloroplasts?
Chloroplasts are organelles pthe cytoplasm of plant and algae cells.resent in (^)
Like mitochontwo boundary membranes and manydria, chloroplasts have (^)
internal membranous sacs. Within the
organelle there are DNA, RNAribosomes and also the pigment and
chlorophyll, responsible for absorption
of photic energy that is usephotosynthesis. d in
The main function photosynthesis: the production oof chloroplastsf highly is (^)
energetic organic molfrom carbon dioxide, water ecules (and light.glucose)
- What is the molecule
responsible for the absorption
of photic energy for
photosynthesis? Where is that
molecule located in
photosynthetic cells?
The chlorophyll molecules are
responsible fenergy for photosynthesis.or the absorption Theseof light
molecules are found in the internal
membranes of chloroplasts. - What are the colors (of the
electromagnetic spectrum)
absorbed by plants? What
would happen to
photosynthesis if the green
light waves that reach a
vegetable were blocked?
Chlorophyll absorthe electromagnetic spectrum bbs all other colors out it f
practicallyThe green color is r does not absorb the green.eflected and such
reflection provides the characteristic
color of plants. Ifreaches a plant is bl the green light thatocked and exposure (^)
of the plant to other colors is
maintainthe photosynthed there would be no harm toesis process. Apparent
paradox: the green light is not
important for photosynthesis.
There is a difference between the
optimum color main types of chlorophyll, thefrequency for the two
chlorophyll A and the chlorophyll B.
Chlorophyll A happroximately 4as an absorption 20 nm wavelengthpeak at
(anil) and chlorophyll B has its major
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