Adaptations of Plants in Different Habitat

ADAPTATIONS
OF PLANTS

IN DIFFERENT TYPES OF HABITATS

MADE BY : NURZAHIRA BINTI MOHD ZAIDEL G0PAL
NURUL AZIZAH BINTI TONI

NURHASYA QISTINA BINTI ZULKARNAIN
DANIAL FARHAN BIN ITHNEN

Questions of the day : Adaptations are special features that
allow a plant or animal to live in a
WHAT ARE THE MEANING OF particular place or habitat. These
ADAPTATIONS OF PLANTS? adaptations might make it very

difficult for the plant to survive in a
different place. This explains why

certain plants are found in one area,
but not in another.

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Classifications of Plants based of
Habitats

A. halophytes B.hydrophytes C.mesophytes D. xerophytes

HALOPHYTES

Halophytes are plants that lives in swampy habitats at the river mouth,
the meeting point of fresh water and seawater. This swampy area is
rich in salt content

Hydrophytes

Plants that live in aquatic habitats,
either on the water surface or submerged in the water

LOTUS WATER PYGMY VICTORIA
LETTUCE WATER-LILY AMAZONICA

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mesophytes

PLANTS THAT LIVE IN A HABITAT THAT IS NOT
TOO DRY NOR TOO WET WITH AN ADEQUATE
SUPPLY OF WATER. MOST PLANTS ARE MESOPHYTES

golden rods oxeye daisy hibiscus

xelophytes

PLANTS THAT LIVE IN A HABITAT THAT
IS HOT
AND DRY WITH A MINIMUM
PRESENCE OF
WATER, THAT IS, A PLACE WITH VERY
HIGH TEMPERATURES SUCH AS
DESERT

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Adaptive HALOPHYTES,
features of HYDROPHYTES,
MESOPHYTES,
XEROPHYTES

01 02 03 04

HALOPHYTES HYDROPHYTES MESOPHYTES XYROPHYTES

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ADAPTIVE FEATURE OF HALOPHYTES

Mangrove trees are an example of halophytes
Have specific adaptive features to adapt to the
environmental conditions, also esposed to high intensity of light

LEAVES ROOT SYSYTEM THAT BRANCHES WIDELY
AND EXISTS IN VARIOUS SHAPE AND SIZE
with thick cuticle and sunken
stomata can reduce the rate of provide support for the plant to continue living in
transpiration the soft and muddy soils
succulent leaves can store water prevent plants from being uprooted due to strong
leaves with a special structure wind
known as hydatode eliminate excess
salt
old leaves can store salt and fall off
when the concentration of salt
stored id too high

ROOTS

also produces hundreds of breathing roots that grow vertically
upwards above the surface of the soil, called pneumatophores
many pores on this roots which called lenticels to enable the exchange
of gases with the atmoshsphere
the cell sap has a higher salt content than sea water .
the cell sap of the roots does not lose water by osmosis instead,
receive water and mineral salts from seawater entering their roots

ADAPTIVE FEATURE OF HYDROPHYTES

GASEOUS EXCHANGE

the stem of these plants
consists of light tissues with
plenty of air spaces between
the cells. These tissues known

as aerenchyma tissues.

SUPPORT

floating plants such as the
lotus are plants that grow by
floating on the water surface
with roots not anchored to the

bottom of the lake

UPTAKE OF WATER AND MINERAL PHOTOSYNTHESIS
SALTS
the leaves which are broad, thin
submerged plants such as Elodea and flat help these plants absorb
sp., are plants that grow completely maximum sunlight
inside the water. These plants have the stem of these plants consists
leaves that are thin and small to of light tissues with plenty of air
increase the epidermis. The spaces between the cells
submerges plants do not have these tissues are known as
stomata and waxy cuticle on the aerenchyma tissues
leaves. Their stems which are small
and holloe help these plant float
upright in the water and help to
reduce water flow resistance

Adaptive features of gaseous exchange
xerophytes
the stomata in the cactus are
live in desert, an area that receives very little rainfall embedded to reduce water
evaporation from the leaves
xeerophytes can overcome this problem of extreme dryness. This

adaptive ability is what will determine the survival of xerophytes

uptake of water and slat minerals photosynthesis support

the roots of xerophytes grow widely and can the cactus has small leaves and the thorns can also
penetrate deep into the soil to absorb water and thick waxy cuticles on its stem and prevent the plant from
mineral salts. The absorb water is stored in the roots, leaves being eaten by
stems and leaves. The presence of thorns can also there are also leaves modified into animals
help the cactus to get water supply by collecting thorns
dew. The dew will drop on the ground and is this feature reduces the total
absorbed by the roots. surface are exposed to the sun thus
reducing water loss

thank you

BIOLOGY FORM 5 CHAPTER 7