Download ss 1 biology - Danbo International Schools

SS 1 BIOLOGY
WEEK 1
TOPIC 1: CLASSIFICATION OF LIVING THINGS (PLANTS)
STEP 1
Classification of plants simply means the grouping of plants into their kinds.
STEP II
DIVISION OF PLANT KINGDOM
Plant kingdom are usually could plantae. The divisions of plantae includes
a. Thallophyta _ They are the earliest group of plants which are called Algae or
thallopytes. They lack true roots e.g Spirogyra.
b. Bryophyta – They are called Bryophytes. They possess rhizoids or false root
e.g moss plant.
c. Tracheophyta – They are usually called Tracheophytes. They are also known
as vascular plant e.g fern
DIVISION OF TRACHEOPHYTA
The divisions include:
1. Pteridophyta
2. Spermatophyta (seed plant) (the spermatophytes are the gymnospermae and
the Angiospermae.
CLASS GYMNOSPERMAE
They are plants with naked seeds
CLASS ANGIOSPERMAE.
They are the flowering plants
SUB DIVISION OF ANGIOSPERMAE INCLUDES:
1. Monocotyledon: They are plants with one seed leaf
2. Dicotyledon; They are plants with two seed leaves
QUESTION 1
A. Use diagram to sketch the kingdom plantae
B. Mention at least three features of the following
i.
Thallophyta
ii.
Bryophyta
iii.
iv.
v.
Dicotyledon
Monocotyledon
Gymnospermae