It helps you to know more about the parts of the leaf that are very important for their growth and development.

1. METABOLIC
COMPARTMENTS
IN THE LEAF
Alivie R. Abascar
MAED-TSCI I

2. PRE - ASSESSMENT

3. 1. Which metabolic
compartment is responsible
for the production of ATP
through cellular respiration?
a) Chloroplasts
b) Mitochondria
c) Vacuole
d) Nucleus
b.
Mitochondria

4. 2. Where does
photosynthesis
primarily happen within
the leaf?
a) Vacuole
b) Mitochondria
c) Chloroplasts
d) Golgi apparatus
c)
Chloroplasts

5. 3. Which of the following best
defines a metabolic compartment in
the leaf?
a) A physical division of the leaf into
separate regions based on cell
types.
b) Specialized organelles within leaf
cells where specific metabolic
processes occur.
c) A protective layer surrounding leaf
cells to regulate metabolic activities.
d) A network of vascular tissues
facilitating transport of metabolites
within the leaf.
b.

6. 4. These are organelles
responsible for cellular
respiration.
a. a) Vacuole
b) Mitochondria
c) Chloroplasts
d) Golgi apparatus
b)

7. 5. What happens to metabolic
compartmentation in leaves
under conditions of prolonged
darkness?
a) It remains unchanged.
b) It becomes more pronounced.
c) It decreases as metabolic
pathways become less active.
d) It becomes more dynamic as
cells adapt to energy deprivation
c)

8. Leaves
- are vital organs of plants
responsible for various metabolic
processes essential for plant growth,
development, and survival.
- various metabolic processes occur
within different cellular compartments.

9. METABOLIC
COMPARTMENTS

10. Chloroplasts are the most
prominent metabolic
compartment in leaves and
are responsible for
photosynthesis, the process
by which plants convert
light energy into chemical
energy in the form of
glucose.

11. Mitochondria are
organelles responsible for
cellular respiration, the
process by which cells
convert glucose and
oxygen into ATP
(adenosine triphosphate),
the energy currency of the
cell.

12. Peroxisomes are small
organelles that play a
role in various metabolic
pathways, including the
breakdown of fatty acids
and detoxification of
harmful compounds
such as hydrogen
peroxide.

13. Vacuoles are large
membrane-bound
organelles found in
plant cells. They play a
role in storing various
substances such as
water, ions, sugars, and
pigments.

14. Endoplasmic Reticulum
(ER) is a network of
membrane-bound tubules
and sacs found in
eukaryotic cells. It plays a
role in the synthesis,
folding, and transport of
proteins and lipids.

15. Golgi Apparatus is another
membrane-bound organelle
involved in protein and lipid
processing and sorting. It
receives newly synthesized
proteins and lipids from the
ER, modifies them, and
packages them into vesicles
for transport to their final
destinations within the cell
or for secretion.

16. Cytoplasm is the fluid-
filled region of the cell
that contains various
organelles and is the site
of many metabolic
reactions, including
glycolysis, the initial step
of cellular respiration,
which takes place in the
cytoplasm.

17. METABOLIC
PROCESSESS

18. Photosynthesis: This is
perhaps the most important
metabolic process that occurs
in leaves. Through
photosynthesis, plants convert
carbon dioxide (CO2), water
(H2O), and light energy into
glucose (C6H12O6) and
oxygen (O2) using chlorophyll
and other pigments present in
chloroplasts.

19. Respiration: While
photosynthesis is the primary
metabolic process in leaves,
respiration is also essential.
During respiration, plants
utilize the stored glucose
produced through
photosynthesis to generate
ATP (adenosine triphosphate),
the energy currency of cells.

20. Transpiration:
Transpiration is the
process by which water is
lost from the surface of
leaves through small
pores called stomata.

21. Gas Exchange: Leaves
facilitate the exchange of
gases, including the uptake
of carbon dioxide (CO2)
from the atmosphere for use
in photosynthesis and the
release of oxygen (O2)
produced during
photosynthesis.

22. Nitrogen Metabolism:
Leaves are involved in
various nitrogen
metabolism processes,
including nitrogen
assimilation, nitrate
reduction, and amino acid
synthesis.

23. SUMMARY
•Metabolic compartments in leaves are
specialized regions where different biochemical
processes occur to facilitate photosynthesis,
carbon fixation, and other metabolic activities
crucial for plant growth and development.
•These compartments are highly organized and
compartmentalized within leaf tissues to optimize
resource utilization and metabolic efficiency.

24. •These compartments work together to carry out
the various metabolic processes required for
the growth, development, and survival of leaf
cells and the plant as a whole.
•Each compartment has its specific roles and
functions, contributing to the overall
metabolism of the leaf.

25. THANK YOU!