1) a wax layer that waterproofs leaf
2) prevents water from evaporating
from the cell walls
4 of 26
Describe the upper epidermis
in the leaf?
1) Cells are thin and transparent to
allow light to pass through
2) does not contain chloroplast
3) Barrier against diseases
5 of 26
Describe the palisade
mesophyll of the leaf?
1) main region where photosynthesis
takes place
2) cells contains a lot of chloroplasts
6 of 26
Describe the Guard Cells
in the leaf?
1) Opens and closes the Stomata
7 of 26
Describe the stomata
in the leaf?
1) got pores in the leaf where gases
and water vapour can enter and
leave the plant.
2) usually in the higher concentration
on the bottom of the leaf
away from the sunshine
8 of 26
Describe the lower
epidermis in the leaf?
1) contains guard cells and stomata
2) Protective layer
3) cells do not contain chloroplasts
on the bottom of the leaf.
9 of 26
Describe the Spongy mesophyll
in the leaf?
1) The cells contains few chloroplasts
2) The region where gas exchange
takes place
3) There are air spaces between the cells
so that diffusion of gases can take
place.
10 of 26
Describe the Vascular Bundle in the
leaf?
1) forms the veins in the leaf
2) contains xylem and phloem
vessels to transport substances
to and from the leaf.
11 of 26
What does the xylem in the leaf do?
Transports water and minerals
from the roots
12 of 26
What does the phloem do in the leaf?
Transports sucrose and amino acids
13 of 26
Explain how the internal structure
of the upper and lower epidermis
of the leaf is adapted for
photosynthesis?
1) The upper and lower epidermis
cells are thin and transparent
which allows as much light as
possible into the leaf.
14 of 26
Explain how the internal structure of
the palisade mesophyll of the leaf is
adapted for photosynthesis?
The cells are filled with chloroplasts for
photosynthesis.
The cells are also rectangular and is
tightly packed to absorb most of
the sunlight.
15 of 26
Explain how the internal air spaces
of the leaf is adapted for
photosynthesis?
the air spaces in the spongy mesophyll
let CO2 diffuse into the cells needed
for photosynthesis and O2 formed
by photosynthesis can be diffused
out of the cells.
16 of 26
In which cells in the leaf does CO2
diffuses in and O2 diffuses out?
spongy mesophyll cells
17 of 26
Where in the spongy mesohyll does
CO2 diffuses into and O2 diffuses
out of the leaf?
in the air spaces
18 of 26
How does the cells in the palisade mesophyll
looks like?
rectangular and tightly packed
19 of 26
Which cells in the leaf are thin and
transparent?
upper and lower epidermis cells
20 of 26
Which cells transport sucrose and amino
acids in the leaf?
Phloem cells
21 of 26
Which cells in the leaf transport
minerals and water from the
roots?
xylem cells
22 of 26
What is the function of Xylem?
the inside of the xylem is wide open
so that water and minerals can
easily flow from the roots up
to the leaves.
the water and minerals are absorbed
by the root hair cells and pulled up
by transpiration.
23 of 26
What is the function of phloem?
phloem is responsible for translocation.
it moves the sucrose and amino acids
to various parts of the plants
24 of 26
Where do you find the phloem
in the vascular bundle?
on the outside
25 of 26
Where do you find the xylem in the
vascular bundle?
in the inside
26 of 26
Other cards in this set
Card 2
Front
The top leaf of a Dicotyledonous plant
consists of?
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