KNEC KCSE BIOLOGY TOPICAL QUESTIONS AND ANSWERS - ATIKA SCHOOL

K.C.S.E Biology Q & A - MODEL 1996PP1QN10

1/6/2020

kcse biology 1996 PAPER 1 questions and answers

A student set up an experiment as shown in the diagrams below;

A student set up an experiment as shown in the diagrams below

The set up was at room temperature for a week

(a) What was the aim of the experiment? ( 1 mk)
(b) What would be the expected results at the end of the experiment ( 2 mks)

ANSWERS

(a) O2 is necessary for germination
(b) Germination in B; no fermentation

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K.C.S.E Biology Q & A - MODEL 1996PP1QN09

1/6/2020

kcse biology 1996 PAPER 1 questions and answers

State three characteristics that ensure cross – pollination takes place in flowering plants.

ANSWER

Store chemical salts/sugar/blood/; maintain shape of cell. Osmotic gradient the bring about movement of water

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K.C.S.E Biology Q & A - MODEL 1996PP1QN08

1/6/2020

kcse biology 1996 PAPER 1 questions and answers

State two functions of cell sap.

ANSWER

Presence of special structure that attract agent of pollination protandry; protogency; monoecism; self – sterility.

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K.C.S.E Biology Q & A - MODEL 1996PP1QN07

31/5/2020

K.C.S.E Biology Q & A

(a) State the role of light in the process of photosynthesis.

(b) Name one end product of dark reaction in photosynthesis.

ANSWERS

(a) To split water/ Photosynthesis/hydrous

(b) Glucose/carbohydrate/ starch/ sugar.

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K.C.S.E Biology Q & A - MODEL 1996PP1QN06

31/5/2020

K.C.S.E Biology Q & A

What are two organisms considered to belong to the same species?

ANSWERS

if they are capable of interbreeding; to produce viable offspring

FURTHER READING
courses.lumenlearning.com/boundless-biology/chapter/formation-of-new-species/

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K.C.S.E Biology Q & A - MODEL 1996PP1QN05

31/5/2020

K.C.S.E Biology Q & A

An organism is with an exoskeleton, segmented body, two pairs of legs per segment, a pair of eyes and a pair short antennae belonging to the phylum.
What is the name of the organism?

answer

Arthropoda

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K.C.S.E Biology Q & A - MODEL 1996PP1QN04

31/5/2020

K.C.S.E Biology Q & A

Name the disease in humans that is caused by lack of vitamin C

ANSWER

Scurvy

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K.C.S.E Biology Q & A - MODEL 1996PP1QN03

27/5/2020

K.C.S.E Biology Q & A

When is glycogen which is stored in the liver converted into glucose and released into the blood.

KNEC ANSWER

After vigorous activity when blood fall below normal

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K.C.S.E Biology Q & A - MODEL 1996PP1QN02

27/5/2020

K.C.S.E Biology Q & A

State two ways by which acquired Immune deficiency syndrome (A.I.D.S) Virus is transmitted.

KNEC ANSWER

- Sexually transmitted
- Blood transfusion
- Sharing needle/syringes/ razors

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K.C.S.E Biology Q & A - MODEL 1996PP1QN01

27/5/2020

K.C.S.E Biology Q & A - MODEL 1996PP1QN01

State the function of Deoxyribonucleic acid (DNA) molecule.

KNEC ANSWER

Controls/regulates/enzymes/ synthesis is the material for inheritance

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Name the organelle that performs each of the following functions in a cell

20/9/2019

Name the organelle that performs each of the following functions in a cell

Proteins synthesis

Ribosomes

Transport of cell secretions

Endoplasmic reticulum

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Motor vehicles move, use energy and produce carbon dioxide and water. Similar characteristics occur in living organisms yet motor vehicles are not classified as living. WHY?

20/9/2019

Motor vehicles move, use energy and produce carbon dioxide and water. Similar characteristics occur in living organisms yet motor vehicles are not classified as living. WHY?( 3 mks)

Motor vehicles don't

produce;
grow;
Respond to stimuli/ irritability;

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