Mastering KCSE Biology with Comprehensive Topical Questions and Answers
K.C.S.E Biology Q & A - MODEL 2007PP1QN11
State tow ways in which the blood cells are adapted to their function
ANSWERS
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K.C.S.E Biology Q & A - MODEL 2007PP1QN11
What prevents blood in veins from flowing backwards?
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN10
The diagram below represents a plant tissue
​(a) Name the tissue
(b) Name the cells labeled K and L. K………………………………………………………………………. L………………………………………………………………………. (c) What is the function of the companion cell?
ANSWERS
​(a) Phloem tissues
(b) K- companion cell L – sieve tube (c) Supply nutrients and energy to the sieve tubes
K.C.S.E Biology Q & A - MODEL 2007PP1QN09
State two ways in which the root hairs are adapted to their function
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN08
State two functions of potassium in the human body
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN08
Name a fat soluble vitamin manufactured by the human body
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN07
The diagram below represents a section though a human tooth
​(a) (i) Name the type of tooth shown
(ii) Give a reason for your answer in (a) (i) above (b) State the functions of the structures found in part labeled J
ANSWERS
(a) (i) Pre- molar tooth
(ii) presence of two roots (iii)Presence of cusps of the crown (b) Has nerve cells that increase sensitivity of the tooth to heat and pain Has a blood vessel that provides nourishment to the tooth and remove waste products
K.C.S.E Biology Q & A - MODEL 2007PP1QN06
Describe what happens during the light stage of photosynthesis
ANSWER
K.C.S.E Biology Q & A - MODEL 2007PP1QN04
State three functions of Golgi apparatus
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN03
Plant cells do not burst when immersed in distilled water. Explain
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN02
Give a reason why staining is necessary when preparing specimens for observation under the microscope
ANSWER
What is the formula for calculating linear magnification of a specimen when using a hand lens?21/6/2020
K.C.S.E Biology Q & A - MODEL 2007PP1QN02
What is the formula for calculating linear magnification of a specimen when using a hand lens?
K.C.S.E Biology Q & A - MODEL 2007PP1QN01
Give two reasons why classification is important
ANSWERS
K.C.S.E Biology Q & A - MODEL 2007PP1QN01
What is meant by the term binomial nomenclature
answer
K.C.S.E Biology Q & A - MODEL 2006PP1QN27
Name the end products of the light stage in photosynthesis.
answers
K.C.S.E Biology Q & A - MODEL 2006PP1QN26
The chart below represents a simplified nitrogen cycle.
​What is represented by X,Y, and Z?
answers
X- Denitrifying bacteria/ denitrification
Y- Animals/ Herbivores; accept primary consumers Z- Nitrogen fixing bacteria ( in soil) accept Azotobacter. A dog weighing 15.2kg requires 216kj while a mouse weighing 50g requires 2736kj per day. Explain.19/6/2020
K.C.S.E Biology Q & A - MODEL 2006PP1QN25
A dog weighing 15.2kg requires 216kj while a mouse weighing 50g requires 2736kj per day. Explain.
answer
K.C.S.E Biology Q & A - MODEL 2006PP1QN24
State four ways in which respiratory surfaces are suited to their function.
answers
K.C.S.E Biology Q & A - MODEL 2006PP1QN23
State the function of each of the following parts of human ear.
a) Ear ossicles b) Cochlea c) Semi circular canals d) Eustachian tube.
answers
K.C.S.E Biology Q & A - MODEL 2006PP1QN22
State two functional differences between the rods and cones in the human eye.
answers
Rodes Cones
K.C.S.E Biology Q & A - MODEL 2006PP1QN22
State the function of ciliary muscles in the human eye.
answer
K.C.S.E Biology Q & A - MODEL 2006PP1QN21
The diagram below represents a reflex are in human.
​a) Name the parts labeled X and Y
b) Name the substance that is responsible for the transmission of an impulse across the synapse.
answers
​(a) X- motor neurone- accept of motor neurone rej. Axon alone
Y- Sense organ/ receptor (b) Acetyl; chlorine/ noradrenaline ( Nerepinephrine)
K.C.S.E Biology Q & A - MODEL 2006PP1QN20
State three biological importance of tropisms plants.
answers
K.C.S.E Biology Q & A - MODEL 2006PP1QN20
What name is given to response to contact with surface exhibited by tendrils and climbing stems in plants?
answer
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