Mastering KCSE Biology with Comprehensive Topical Questions and Answers
​K.C.S.E Biology Q & A - MODEL 2005PP1QN07
State the importance of osmosis in plants.
answers
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Name the substance which accumulates in muscles when respiration occurs with insufficient oxygen.18/6/2020
K.C.S.E Biology Q & A - MODEL 2005PP1QN06
Name the substance which accumulates in muscles when respiration occurs with insufficient oxygen.
answer
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
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.
K.C.S.E Biology Q & A - MODEL 2005PP1QN03
What is the role of the vascular bundles in plant nutrition?
ANSWERS
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.
K.C.S.E Biology Q & A - MODEL 2005PP1QN01
Apart from hearing, state another function of the human ear.
ANSWER
​K.C.S.E Biology Q & A - MODEL 2004PP1QN11
Fruit formation without fertilization is called
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K.C.S.E Biology Q & A - MODEL 2004PP1QN10
How are the xylem vessels adapted for support?
answer
K.C.S.E Biology Q & A - MODEL 2004PP1QN09
Name two mineral elements that are necessary in the synthesis of chlorophyll.
answers
K.C.S.E Biology Q & A - MODEL 2004PP1QN07
State the function of the organelles:
a) Lysosomes b) Golgi apparatus
answers
​a) Stores hydrolytic enzymes for destruction of worn out organelles / cells/ tissues / digestion of bacteria. / pathogens;
Acc. Digestion of food / accept autolysis. b) processing / packaging synthesized and transporting of packaged cell materials;. Production of lysosomes/ secretions of packaged material; K.C.S.E Biology Q & A - MODEL 2004PP1QN06
The diagram below shows the position of an image formed in a defective eye.
​a) Name the defect:
b) Explain how the defect named in (a) above can be corrected
answers
a) Myopia/ shortsightedness / short sight
b) Concave lens / divergent lends; to diverge the rays so that the image is focused on the retina Acc. Concave.
K.C.S.E Biology Q & A - MODEL 2004PP1QN05
During which phase of meiosis does crossing over occur.
answer
K.C.S.E Biology Q & A - MODEL 2004PP1QN04
Other than carbon dioxide, name other products of anaerobic respiration
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K.C.S.E Biology Q & A - MODEL 2004PP1QN03
How is aerechyma tissue adapted to its function
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K.C.S.E Biology Q & A - MODEL 2004PP1QN02
Distinguish between natural and acquired immunity
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K.C.S.E Biology Q & A - MODEL 2004PP1QN01
State the function of the cartilage named in (a) above
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K.C.S.E Biology Q & A - MODEL 2004PP1QN01
Name the cartilage found between the bones of the vertebral column
answer
K.C.S.E Biology Q & A - MODEL 2003PP1QN10
How are leaves of submerged adapted plants for photosynthesis?
answers
K.C.S.E Biology Q & A - MODEL 2003PP1QN11.
Name the causative agent of typhoid.
answer
K.C.S.E Biology Q & A - MODEL 2003PP1QN09
Name the:
a) Material that strengthens xylem tissue. b) Tissue that is removed when the bark of a dicotyledonous plant is ringed.
answers
a) lignin
b) Phloem
K.C.S.E Biology Q & A - MODEL 2003PP1QN08
State a function of the large intestine in humans
answers
K.C.S.E Biology Q & A - MODEL 2003PP1QN07
The diagram below represents regions of a root tip.
a) Name the tow regions above X in ascending order
b) State the function of the part labeled X
answers
a) Zone of cell division Acc cell multiplication
Zone of cell elongation / enlargement; Acc expansion for elongation b) To protect root tip
K.C.S.E Biology Q & A - MODEL 2003PP1QN06.
Distinguish between analogous and homologous structures.
answers
​Analogous structures – structures which (appear similar and ) perform similar functions but have different origins.
Homologous structures – structures which have a common origin but (have evolved to ) perform different functions. K.C.S.E Biology Q & A - MODEL 2003PP1QN05
A bone obtained from a mammal is represented by the diagram below.
​a) Name the bone.
b) Which bones articulate with the bone shown in the diagram at the notch?
answers
a) Ulna
b) radius; Humerus; |
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