C3 and C4 plants differ primarily in their photosynthesis processes; C3 plants produce 3-phosphoglycerate and are more common, accounting for about 85% of plants, thriving in cool, wet climates. In contrast, C4 plants form a 4-carbon sugar and are more efficient in hot, dry environments, comprising around 5% of plant species. Notably, C3 plants utilize the Calvin cycle, while C4 plants employ the Hatch-Slack cycle and have specialized structures that enhance their efficiency.

1. C3 AndC4
PLANTS

2. Contents:
1. Photosynthesis Cycle
2. Habitat
3.Example
4.Advantage
C3 AndC4
PLANTS

3. • C3 plants are plants in
which the initial product
of the assimilation of
Carbon dioxide through
photosynthesis is 3-
pohospgoglycerate,
which contain 3 carbon
atoms.
C3 PLANTS

4. • This carbon dioxide enters
through the stomata.
• Carbon dioxide binds with
a sugar molecule by the
help of enzyme
“RuBisCo”.
• This combination of sugar
and carbon consist of three
carbons that’s why called
“C3 plants”.
Photosynthesis of
C3 Plants Calvin
Cycle

5. This reaction takes place in
the stroma of Chloroplast.
These plants proceed dark
reaction.
They are less efficient of
photosynthesis.
C3 PLANTS
Calvin Cycle

6. • About 85% of plants are
C3 type on earth.
Examples:
Sugar beat , Barely,
Rice, Cotton are
common examples.
Habitat:
They are most efficient at
cool and wet climates.
Examples and
habitat

7. Plants that form 4
carbon sugar during the
Calvin Cycle knows as
C4 Plants.
C4 PLANTS

8.  Carbon dioxide enters in the
Mesophyll cells and form a
4- Carbon organic acid
(Oxaloacetate).
 This process is carried out by a
Non RuBisCo enzyme PEP
(Carboxylase). It has not the
tendency to bind with oxygen.
 Oxaloacetate then converted into
the Malate. Malate then
transpoted to the Bundle-Sheath
cells.
 Breakdown of Malate release
the carbon dioxide
molecule that is fixed by the
RuBisCo enzyme.
Photosynthesis
of C4 Plants
Cycle

9. C4 PLANTS

10. Examples and
Habitat
Examples:
Maize
Pigweed
Sugar cane
Habitat:
They are most efficient
at hot and dry places.
C4 plants are about
5%of earth .

11. C3 plants bundle sheath
do not contains
Chloroplast while C4
plants contain.
C4 plants carry Hatch
Slack cycle while C3
plants Carry Calvin
Cycle.
Difference
between C3 and
C4 plants