To study the external features of root, stem, leaf and flower - Lab Experiment, Class 9 Science Video Lecture

to study external features of root stem
leaf and flower of monocot and dicot
plants angiosperm is made from two greek
words and you meaning covered and sperma
meaning seed plant embryos in seeds have
structures called cotyledons which are
also called seed leaves on the basis of
number of cotyledons angiosperms are
divided into two major groups namely
monocots and dicots madan how can we
identify root stem leaf and flower of
monocot and dicot plants in monocots the
seeds of these plants via only one
cottilard on the leaves are simple with
a parallel venation roots are fibrous
and similar in shape closeted Ramires
having three members in each floral wall
vascular bundles are closed
that'ss cambium is absent and scattered
in the parenchyma and hence no secondary
growth is found
whereas in dicots the seeds of these
plants be or two cotyledons when ation
in the leaves is reticulate root system
includes top root with primary and
secondary roots vascular bundles are
arranged in a form of ring and are of
open type that is possess cambium which
is responsible for secondary growth
flaws are pentamerous having five
members in each wool let's do an
experiment to study external features of
root stem leaf and flower of monocot and
dicot plants our aim here is to study
external features of root stem leaf and
flower of monocot and dicot plants the
materials required are plant specimens
monocot example maize rice etc dicot
example Brassica magnifying glass
forceps
needle and microscope procedure select a
dicot and a monocot plant with roots
leaves flowers and fruits observe the
differences and the external features of
different parts of a plant that is stems
leaves roots flowers and seeds wash the
roots carefully to remove the soil and
spread them on a sheet of paper study
the nature of the root system also study
the leaves for the shape and weigh
nation carefully observe the flowers and
identify the different floral paths also
count the number of sepals petals and
stamens in the floors take a transverse
section of the ovaries and observe it
under a microscope remove the seed coat
and count the number of cotyledons
note down all the observations and draw
the diagram of all the paths studied
observations characteristics monocot
dicot plant size leaf venation
parallel or critical 8 leaf shape broad
or narrow stem hollow or solid vascular
bundles scattered or ring root system
tap root or adventitious flower try
Marys or pentamerous number of petals
number of sepals number of carpel number
of stamens seed single cotyledon or two
cotyledons conclusion monocot odd dicot
result the study reveals many
differences between dicot and monocot
plants the distinctive features can be
seen in most of the plants belonging to
these groups
precautions observation should be done
using a hand lens slides in the
microscope
be handled with Gil handle the plant
parts with gear to avoid damage thank
you mom for this knowledgeable
experiment