KNEC KCSE BIOLOGY TOPICAL QUESTIONS AND ANSWERS

To which class does an animal with two body parts and four Pairs of legs belong?

18/6/2020

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K.C.S.E Biology Q & A - MODEL 2005PP1QN05

To which class does an animal with two body parts and four Pairs of legs belong?

ANSWERS

Arachnida

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K.C.S.E Biology Q & A - MODEL 2005PP1QN04

18/6/2020

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K.C.S.E Biology Q & A - MODEL 2005PP1QN04

What is meant by
a) Organic evolution
b) Continental drift?

ABSWERS

a)It is the process through which ancient simpler forms of life under went gradual series of small changes for many million years, to give rise to the modern species of life // accepts as a theory formed one large single land mass, which later broke up into parts which drifted from one another forming the present day continents.

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What is the role of the vascular bundles in plant nutrition?

18/6/2020

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K.C.S.E Biology Q & A - MODEL 2005PP1QN03

What is the role of the vascular bundles in plant nutrition?

ANSWERS

Xylem vessels transport water and mineral salts from the roots to the leaves. Phloem tissues transport manufactured food/soluble
Organic products of photosynthesis within the plant.

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K.C.S.E Biology Q & A - MODEL 2005PP1QN02

18/6/2020

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K.C.S.E Biology Q & A - MODEL 2005PP1QN02

The diagram below represents a cell.

(a) Name the parts labeled X and Y
X ……………………………………..
Y ……………………………………..
(b) Suggest why the structures labelled X would be more on one side than the other.

ANSWERS

a) X – Chloroplast
Y – Cell vacuole / sap vacuoles
b) To receive maximum amount of light.

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