Biology Practical Preparation For NECTA Examination (CSEE)

Welcome to our website darasahuru.co.tz. In this article you will find Biology Practical Preparation For NECTA Examination (CSEE), Guideline For Preparing Biology Practical At Secondary :- BIOLOGY PRACTICAL NECTA FORM FOUR EXAM (CSEE), Prepare yourself for Biology Practical Form Four, Topics is covered:-

1. CLASSIFICATION OF LIVING THINGS

2. NUTRITION

3. GROWTH

4 TRANSPORTATION OF MATERIALS IN LIVING THINGS

5. REPRODUCTION

1.Kingdom Plantae

General features of kingdom Plantae

i. They are multicellular ii.

ii. They are eukaryotic with cellulose cell walls

iii. They are autotrophs

iv. They store foods as starch

v. Some reproduce sexually and others asexually

vi. They show limited movement

Angles of concentration or Possible divisions (CSEE NECTA 2024)

1. Division bryophyta

Plants in this division include mosses and liverwort

Distinctive features of division bryophyta

i. They are generally small in size

ii. They have leaf-like(thallus) and root-like(rhizoids) structures but no true leaves and roots

iii. They lack vascular tissues (xylem and phloem)

iv. They are commonly found in moist areas

v. They reproduce both sexually and asexually

vi. They show alternation of generation Structure of Mosses (moss plant)

This consist of a stem like structure bearing spirally arranged leaf-
like extensions. They are anchored to the substratum by rhizoids.

The capsule is the structure where sporangia are housed.

Advantages of moss plants

i. Mosses help to decompose dead logs.

ii. Mosses serve as pioneer plants on bare ground and help to
create a suitable environment for the growth and development
of other plants.

iii. Mosses retain a lot of water. They therefore help to keep the
soil moist.

iv. When mosses grow on a piece of land, they hold the soil
particles together and help to prevent soil erosion.

v. Mosses also provide shelter for insects and other small animals.

vi. Some birds and mammals use mosses as nesting material.

vii. Mosses are also used as cushioning material in furniture or in shipping, for example when transporting flowers.

viii. Due to their good water-holding capacity, moss plants are
mixed with soil to improve the soil’s moisture content.

ix. Sphagnum moss has antiseptic properties. During World War I, it was widely used as a bandage for wounded soldiers.

Disadvantages of moss plants

i. Mosses occur as weeds in gardens and other places. They are very difficult to get rid of.

ii. Mosses growing around ponds and other small water bodies can grow onto the water and cover it completely, causing the area to become marshy.

3. Division angiospermophyta

It comprises plants known
as flowering plants e.g. Mango tree

Biology Practical Preparation For Necta Examination (CSEE)
















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