Plant - Growth & Development PPT Biology Class 11

 Page 2


• All cells of a plant develops 
from the zygote. 
• Zygote produces a number 
of cells which organize into 
tissues and organs.  
• Development is the sum of 
two processes: growth and 
differentiation. 
• During the process of 
development, a complex 
body organisation is 
formed that produces 
roots, leaves, branches, 
flowers, fruits, and seeds, 
and eventually they die.
Page 3


• All cells of a plant develops 
from the zygote. 
• Zygote produces a number 
of cells which organize into 
tissues and organs.  
• Development is the sum of 
two processes: growth and 
differentiation. 
• During the process of 
development, a complex 
body organisation is 
formed that produces 
roots, leaves, branches, 
flowers, fruits, and seeds, 
and eventually they die.
• Growth may be defined as an irreversible permanent 
increase in size in size, volume or mass of a cell or 
organ or whole organism.
• Growth is one of the fundamental characteristics of a 
living being. 
• It is accompanied by metabolic processes i.e. anabolic 
and catabolic process, that occur at the expense of 
energy. 
• Example:- expansion of a leaf, elongation of stem etc.
GROWTH
Page 4


• All cells of a plant develops 
from the zygote. 
• Zygote produces a number 
of cells which organize into 
tissues and organs.  
• Development is the sum of 
two processes: growth and 
differentiation. 
• During the process of 
development, a complex 
body organisation is 
formed that produces 
roots, leaves, branches, 
flowers, fruits, and seeds, 
and eventually they die.
• Growth may be defined as an irreversible permanent 
increase in size in size, volume or mass of a cell or 
organ or whole organism.
• Growth is one of the fundamental characteristics of a 
living being. 
• It is accompanied by metabolic processes i.e. anabolic 
and catabolic process, that occur at the expense of 
energy. 
• Example:- expansion of a leaf, elongation of stem etc.
GROWTH
Characteristics of Growth
The main characteristics of growth are :-
1. Cellular growth
2. Cell division
3. Cell expansion
4. Cellular differentiation
Page 5


• All cells of a plant develops 
from the zygote. 
• Zygote produces a number 
of cells which organize into 
tissues and organs.  
• Development is the sum of 
two processes: growth and 
differentiation. 
• During the process of 
development, a complex 
body organisation is 
formed that produces 
roots, leaves, branches, 
flowers, fruits, and seeds, 
and eventually they die.
• Growth may be defined as an irreversible permanent 
increase in size in size, volume or mass of a cell or 
organ or whole organism.
• Growth is one of the fundamental characteristics of a 
living being. 
• It is accompanied by metabolic processes i.e. anabolic 
and catabolic process, that occur at the expense of 
energy. 
• Example:- expansion of a leaf, elongation of stem etc.
GROWTH
Characteristics of Growth
The main characteristics of growth are :-
1. Cellular growth
2. Cell division
3. Cell expansion
4. Cellular differentiation
• Growth rate can be defined as increased growth per unit 
time. 
• The rate of growth can be expressed mathematically.
• Types of Growth Rate
Growth Rates
Growth Rate
Arithmetic 
growth
Geometric 
growth