Mastering KCSE Biology with Comprehensive Topical Questions and Answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN26
Name two sex linked traits in human beings.
answers
0 Comments
K.C.S.E Biology Q & A - MODEL 2013PP1QN26
What is meant by the term sex linked genes?
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN25
State one adaptation of xylem vessels to their function.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN24
Explain three protective functions of mammalian blood.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN23
The diagram below illustrates a defect in the eye.
Explain how the defect illustrated above can be corrected.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN22
The diagram below illustrates a response by a certain plant.
​(a) Name the type of response.
(b) Explain how the response illustrated above occurs.
answers
​(a) Thigmotropism/Haptotropism;
(b) Part of the tendril in contact with support causes migration of auxins to the opposite side; leading to faster cell division/growth on the side not in contact with the support: This causes the tendril to curl around the support;
K.C.S.E Biology Q & A - MODEL 2013PP1QN21
What is meant by the term organic evolution?
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN21
Explain the role of continental drift in evolution.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN20
Explain the theory of evolution by natural selection.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN19
State three factors in seeds that cause dormancy.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN18
How is the human sperm cell structurally specialised?
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN17
Name the flower part that produces gametes.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN16
Name three mechanisms that ensure cross pollination takes place in flowering plants.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN15
State two reasons why accumulation of lactic acid leads to an increase in heart beat.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN14
Name the three end products of anaerobic respiration in plants.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN13
State two characteristics of living organisms that are specific to plants.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN12
​(a) A student collected an organism and observed the following features: simple eyes,four pairs of legs and two body parts.
(i) State the class to which the organism belongs. (ii) Give an example of an organism in this class. (b) Name the kingdom to which plasmodium belongs.
answers
​(a) (i) Arachnida;
(ii) Spider/scorpion/tick/mite; (b) Protoctista/protista;
K.C.S.E Biology Q & A - MODEL 2013PP1QN11
State the advantage of possessing blood group AB.
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN10
How are lenticels adapted for gaseous exchange?
answers
K.C.S.E Biology Q & A - MODEL 2013PP1QN09
State one way in which each of the following is structurally adapted to its function:
(a) neurone; (b) mitochondrion.
answers
a)Presence of myelin sheath for insulationlincreases transmission; Axon for transmission of impulses;
Large cell body controls activites of cell; Nerve endings/dendrites receives impulses from receptors cells; Node of Ranvier speeds up impulse transmission. (b) Inner membrane highly folded/cristae to increase S A for attachment of (respiratory) enzymes.
K.C.S.E Biology Q & A - MODEL 2013PP1QN08
Construct a step in a dichotomous key using two leaves one with a serrated and the other with a smooth margin.
answers
​1(a) - Leaf with serrated margin -- go to 2;
(b) - Leaf with smooth margin -- go to --; K.C.S.E Biology Q & A - MODEL 2013PP1QN07
Explain how the following forces contribute to the movement of water up the xylem vessels:
(a) cohesion; (b) adhesion.
answers
(a) Water molecules cling to each other maintaining a continuous column of water/preventing the break of water column;
(b) Water molecules cling to the sides of the xylem vessel walls;
K.C.S.E Biology Q & A - MODEL 2013PP1QN06
Using a microscope, a student counted 55 cells a cross a field of view whose diameter was 6000pm. Calculate the average length of the cells. Show your working.
answers
​ 6000(um)/55 (cells)=; 109um;
K.C.S.E Biology Q & A - MODEL 2013PP1QN05
Describe how turgor pressure builds up.
answer
K.C.S.E Biology Q & A - MODEL 2013PP1QN04
Explain how age determines a person’s energy requirements.
answers
|
Archives
December 2024
Categories
All
TOPICSFORM 1
Form 2
Form 3
Form 4
|
We Would Love to Have You Visit Soon! |
Hours24 HR Service
|
Telephone0728 450425
|
|
8-4-4 materialsLevels
Subjects
|
cbc materialsE.C.D.E
Lower Primary
Upper Primary
Lower Secondary
Upper Secondary
|
teacher support
Other Blogs
|