Transcript PASSAGE 4 - Maejo University

PASSAGE 4
THE PARTS OF A FLOWERING
PLANT AND THEIR FUNTION
Have
Not have
Plants possess a green material called chlorophyll,and in
this respect they differ form forms of animal life.
If we dig up a common garden weed such as shepherd’s
purse wa shell be able to study its form and carry out
experments in order to find out how the different parts function.
Shepherd’s purse, which is an annual weed,may be
found in flowers on cultivated ground at all seasons of the year.
The plant consists of a stem with leaves,leafbuds,flowers
and fruits,together with a root system below soid level.
flower
leaves
stem
fruit
root
THE ROOT STRUCTURE
THE LEAVES
 Much of the water taken in through the roots is given out
by the leaves.
THE FLOWER AND ITS FUNTIONS
 in order to exist it is necessary for living things to reproduce
themselves ad flower are the highest development of the
reproductive system in plants
เป็ นสิ่ งจำเป็ นสำหรับกำรดำรงชีวติ ในกำรผสมตัวเองและดอกไม้ ยงั ถือ
เป็ นกำรพัฒนำสู งสุ ดของระบบสื บพันธุ์ในพืช
The floral leaves may be spirally arranged but are often
in circles or whorls around the receptacle.These whorls
may be of four kinds.
FLOWER STRUCTURE