1. Delhi Public School Jamnagar
Grade 9
BIOLOGY
Topic: Classification of Plants

2. Kingdom Plantae
These are multicellular eukaryotes with cell walls. They are autotrophs and use chlorophyll for photosynthesis. Thus, all plants are included in this group.

3. Criteria of classification in Kingdom Planate
Differentiated body
Presence of Special Tissues
Presence of Seeds

4. Classification of plants on the ability to produce seeds
Cryptogams - do not have well developed reproductive organs
Examples are Thallophyta, Bryophyta and Pteridophyta
Phanerogams - These plants have well developed reproductive organs
Examples are Gymnosperms and Angiosperms

6. Let’s Revise
Q1 State criteria required to classify plants. Q2 Give examples of cryptogams. Q3 What are phanerogams? Q4 Give examples of Pteridophyta and Bryophyta. State one point of difference between them. Q5 What are the two types of angiosperms? Give examples.

7. CHARACTERISTICS OF CRYPTOGAMS:

8. Let’s Revise Q1 Name the components present in Pteridophyta.
Q2 List differentiated parts of a plant.
Q3 Which group is also known as amphibian of plant kingdom.
Q4 Organisms of which group require aquatic environment to grow. Give two examples.
Q5 Name the groups in which vascular tissues are present. Give example.

9. CHARACETRISTICS OF PHANEROGAMS:

10. Let’s Revise Q1 Name the group also known as non flowering plants.
Q2 State the meaning of Angiosperms.
Q3 Give two examples of gymnosperms.
Q4 Where is the seed present in angiosperms?
Q5 Give two examples of angiosperms.

11. ANGIOSPERMS:
The seed leaves in Angiosperms are called Cotyledons. Plant embryos in seeds have structures called cotyledons. Cotyledons are called ‘seed leaves’ because in many instances they emerge and become green when the seed germinates. Thus, cotyledons represent a bit of pre-designed plant in the seed
Angiosperms can be divided into two types on the basis of the presence of cotyledons in them
Monocotyledons or monocots
Dicotyledons or Dicots

14. Let’s Revise Q1 What are the two types of Angiosperms?
Q2 Why cotyledons are called seed leaves?
Q3 Name the type of venation present in
Dicotyledons.
Q4 Describe the types of roots present in
monocotyledons.
Q5 Give two examples of Dicotyledons.

15. Thank you Delhi Public School JamnagarBy
Neera Sharma