photosynthesis
1. What is the primary source
of energy for living beings on
earth?
2. How is light from the sun
transformed into chemical
energy to be used by the
living beings on earth?
3. What is the chemical
equation of photosynthesis?
4. Which are the living beings
that carry out photosynthesis?
Which is the cell organelle
responsible for the absorption
of light for the photosynthesis
processin plants and algae?
5. Are there chloroplasts in
cyanobacteria?
6. Which chemical element is
central in the chlorophyll
molecule?
7. How do chloroplasts
multiply?
8. How can the hypothesis
that asserts that chloroplasts
as well as mitochondria were
primitive prokaryotes that
associated in mutualism with
primitive anaerobic eukaryotic
cells be corroborated?
9. What are the main
structures of chloroplasts?
10. In which chloroplast
structure are chlorophyll
molecules found?
11. What do ATP and ADP
mean? What are the roles of
these molecules for the
cellular energetic metabolism?
12. What is ADP
phosphorylation? What
respectively are
photophosphorylation and
oxidative phosphorylation?
13. What are the stages into
which photosynthesisis
divided?
14. What are the processes of
the photochemical stage of
the photosynthesis process?
15. How is the photic energy
absorbed by chlorophyll
transfered to ATP molecules in
photophosphorylation? How
will be the resulting ATP
used?
16. Is it correct to consider
water decomposition by the
action of light the basis of the
photosynthesis process?
17. What are the chemical
substances produced by water
photolysis? What is the
destination of each of those
substances?
18. In sulphur photosynthetic
bacteria what is the molecule
that donates hydrogen for
photosynthesis
19. Why is it said that during
photosynthesis carbon dioxide
is enriched to form glucose?
20. What is the complete
chemical equation of
photosynthesis?
21. What is an example of a
lab experiment that shows the
variation of the
photosynthesis efficiency in
relation to different photic
energy frequencies to which
the reaction is exposed? Was
it expected that green light
frequency favoured the
reaction?
22. What are the divisions of
white light according to the
electromagnetics pectrum?
Which are the two most
efficient colours for
photosynthesis?
23. What is NADP and NADPH?
24. Photosynthesisis the most
important producer of
molecular oxygen (O2) on our
planet. From which molecule
do oxygen atoms liberated by
photosynthesis come? From
which other molecule could
one suspect they have come?
What are the destinations of
those oxygen atoms?
25. Where do the
photochemical and the
chemical stages of
photosynthesis occur?
26. Which are the subproducts
of the photochemical stage
that are essential for the
chemical stage of
photosynthesis?
27. What arethe roles of
NADPH and ATP in the
chemical stage of
photosynthesis?
28. Why ist he nickname “dark
reactions” not entirely correct
for the chemical stage of
photosynthesis?
29. What is the general
chemical equation of
photosynthesis? Why doesn't
that equation clearly show the
real origin of the molecular
oxygen liberated?
30. What arethe three main
limiting factors of
photosynthesis?
31. 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?
32. What is the compensation
point? What is the implication
of the compensation point for
the plant growth?
33. 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?
34. Why do some trees lose
their green colour in the
autumn?