Study of plants

223 views 23 slides Jun 23, 2020
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About This Presentation

Learn the different types of plants along with examples
Plant structure and its modification
Shoot and root system


Slide Content

SCIENCE
!
STUDY&OF&PLANTS&
Rajashri Bhairamadgi

Will learn..
-&Types&of&plants&
-&Parts&of&plants&
-&Modifica>on&and&Func>on&of&plant&parts&
-&Pollina>on&and&Fer>liza>on&
&

Types of plants
Herbs Shrubs Trees
Climbers/
Creepers

Types of plants
a)&Herbs&&
-&These&are&small&plants&
-&Stem&is&green&and&thin&
e.g.&Mint,&Parsley,&Coriander&&

b)&Shrubs&
-&These&are&small&plants,&the&stem&is&hard&
-&These&have&mul>ple&branches&
-&Branches&grow&close&to&ground&
e.g.&Rose,&Jasmine,&Basil&etc.&
!

c)&Trees&
-&These&are&large&and&tall&trees,&many&branches&
-&The&stem&is&hard&and&elongated&
-&Stem&is&called&as&trunk&
e.g.&Mango&tree,&Ashoka&tree&

d)&Climbers/&Creepers&
-&Their&stem&is&weak&and&cannot&support&plant&
-&They&climb&on&pole/&tree&trunk&
-&They&forms&tendrils&to&climb&&
e.g.&Money&plant,&Grape&vine&

PARTS OF PLANT

TWO MAIN SECTIONS
a) &SHOOT&SYSTEM&
b) &ROOT&SYSTEM&

a) SHOOT&SYSTEM&

1)&Stem-&Backbone&of&the&plant&
-It&has&two&sec>ons,&nodes&and&internodes&
-It&gives&support&to&plant,&&
leaves&and&(branches),&&
flowers&and&fruits&too&

-&Transport&of&nutrients&and&water&
-&Transport&of&food&material&
-&A&bud&gives&rise&to&new&leaves,&and&branches&
emerges&from&it.&
-&In&some&plants&perform&photosynthesis.&

Stem&Modifica>on&
● Storage&of&food&
● Storing&water&
● Manufacture&of&food&
● Protec>on&
● Support&

2)&Leaf&–&&
-&These&are&usually&green&in&colour.&
-&Func>on&is&to&carry&out&photosynthesis,&&&&&
respira>on&and&transpira>on.&
-&Plants&have&chlorophyll&and&stomata&to&
exchange&gases&and&perform&photosynthesis&

Structure of leaf
!
!
!
!
!!!! !

Types&of&Vena>on&
a) Parallel&&&&& b)&Re>culate&
&

Leaf&Modifica>on&
● Protec>on&
● Support&
● Reproduc>on&
● Preying&on&insects&

3)&Flower&
-&These&are&reproduc>ve&organ&of&the&plant&
-&They&are&colourful,&a\rac>ve&and&sweet&
smelling&

Structure&of&Flower&

Pollination and Fertilisation
- Pollination is the transfer of pollen from the
anther to the stigma of the same or different
flower

- Fertilization occurs once the pollen grain
reaches the stigma, it produces a pollen tube,
which grows down through the style to the ovary&

b)&ROOT&SYSTEM

Root&
-&Root&gives&support&to&plant&by&holding&firmly&
to&the&soil&
-&Absorbs&&the&water&and&minerals.&

Root&Types&!

Root&Modifica>on&
-&Storage&
-&Support&
-&Absorp>on&from&host&
-&Nitrogen&Fixa>on&

!
&