If you are here to get likely questions and answers that may appear on the KCSE 2024 exams, then you are welcome. While some claim to have leakages, such is not what you may find here. If you have questions, concerning the KCSE exams, please let us know in the comments.

The Kenya National Examinations Council (KNEC) started the KCSE examinations in November and there are many searching for leakages. but we will share some predictions below. Credit to advance-africa.com. Feel free to leave whatever question or answer you may have in the comments and you should get the necessary response you seek or you may even receive PDFs for past papers.

KCSE Agriculture Paper 1 - 2023 K.C.SE Prediction Set 1

Section A (30 MARKS)

Answer ALL questions in this section.

1. Give four methods of applying fertilizers to crops. (2 marks)

2. State four beneficial biotic factors that influence agriculture. (2 marks)

3. Give four branches of Agriculture. (2 marks)

4. State four advantages of co-operative land tenure system. (2 marks)

5. State four benefits of organic mulch in crop production. (2 marks)

6. State four conditions under which shifting cultivation is practiced. (2 marks)

7. Give four effects of mass wasting. (2 marks)

Agriculture Paper 2 - K.C.SE Prediction Set 1

SECTION A (30 MARKS)

2023 Answer all the questions in this section in the spaces provided.

1. Give three factors that affect the quality of honey. (1½ marks)

2. State three conditions that make a cow to withhold milk during milking. (1½ marks)

3. State four signs of furrowing observed in pigs. (2 marks) 4. Give three factors that may make birds to lay eggs on the floor in a deep litter. (1½ marks)

5. Give three characteristics of clean and high quality milk. (1½ marks)

6. Outline four control measures of round worms. (2 marks)

7. State four signs of liver fluke infestation in cattle. (2 marks)

8. Give four reasons of breeding in cattle. (2 marks)

9. List four methods of preserving fish. (2 marks)

10. Name two classes of livestock feedstuffs. (1 mark)

Biology Paper 1 - 2023 K.C.S.E Prediction Set 1

1. Name the reagent used for testing presence of (3 marks)

a. Starch

b. Reducing sugars

c. Vitamin c

2. State the processes which occur in each of the following organelles. (2 marks)

a. Chloroplast

b. Mitochondrion

c. Ribosomes

3. A student observed a specimen through a light microscope. He used the objective lens marked

X40.If he indicated the magnification of the image as x 400, what was the eye - piece magnification? (Show your working). (3 marks) 4. State the function of the following in mammalian trachea. (3 marks)

a. Rings of cartilage

b. Mucus

c. Cilia

5. a. What do you understand by the term biological control? (1 mark)

b. Explain why all the energy produced by producers does not flow to the tertiary consumers. (2marks)

6. Name any three forces that maintain the transpiration stream (3 marks)

7. Give the form in which the following gases are transported in blood. (3 marks)

a. Oxygen

b. Carbon (IV) oxide

c. Carbon (II) oxide

8. a. Name the main group of organisms which comprise the Kingdom Monera. ( 1mark)

b. State any three ways in which the organisms named in 8 (a) above affect human lives. (3marks)

c. State the main characteristics of Monera which distinguish it from all other kingdoms. (1 mark)

9. State ways in which the xylem tissue is adapted to carry out its function. ( 3marks)

10. Why is it necessary for an athlete to breathe heavily after running? ( 2 marks)

Biology Paper 3 - 2023 KCSE Prediction Set 1

1. a. You are provided with a solution L. Using the reagents provided; determine the food compounds in L. Fill in the table below.

 

FOOD COMPOUND	PROCEDURE	OBSERVATION	CONCLUSION
Starch	To 2cm3 of solution L add drops of iodine 1mk	Colour turns brown /yellow 1⁄2 mk	Starch absent 1⁄2 mk
Reducing sugar	To 2cm3 of solution L ,add benedicts solution and boil 1 mark	Colour changes from blue to green to yellow/orange 1⁄2 mk	Reducing sugars present 1⁄2 mk
proteins	To 2cm3 of solution L add 3 drops of NaOH followed by drops of CuSO4 and shake 1mk	solution remains blue 1⁄2 mk	Protein absent 1⁄2 mk
Ascorbic acid (vitamin c)	To 2cm3 of solution DCPIP add solution L dropwise shaking till in excess 1mk	DCPIP decolourised 1⁄2 mk	Vitamin C /Ascorbic acid present 1⁄2 mk

b. Place 10mls of solution L in a visking tubing. Tie both ends and place it in 50mls of distilled water contained in a beaker.leave the set up for 20 minutes and make observations. i. Observations. (1mark)

solution in the visking tubing increases in volume ii. Account for the observation in b (i) above. (2marks)

Water moves by osmosis; in the visking tubing due to the high osmotic pressure of the solution in the visking tubing iii. Give the equivalent of a visking in the bodies of living organisms. (1mark)

Cell membrane/plasma membrane/plasmalema 2. Study the photomicrograph of the longitudinal section of a maize fruit below and answer the questions that follow.

a. i. Name the parts labelled A, B, C and D. (4marks)

 

A – Endosperm

B – Radicle

C - Plumule D – Plumule sheath/coleoptile

ii. Give the role played by A and D. (2 marks)

A - stores food for the embryo; D - protects the delicate plumule from mechanical damage;

b. i. Name the type of germination exhibited by maize grain. ( 1 mark)

hypogeal; < b>ii. Place the organisms from where the photomicrograph was obtained into its Kingdom Division Class (3marks)

Kingdom – Plantae; Rej plant

Division – spermatophyte

Class –Monocotyledonae; rej monocot/monocotyledon

iii. State three characteristics of members of the class identified in b (ii) above (3marks

 

• Fibrousroots

   

• Parallel venation;

   

• Floral parts occur in three /multiples of three;

   

• Sheath like petiole; Mark first three

  c. Give one reason why the maize grain is classified as a fruit. (1mark)

  Has two scars; 3. Study the organisms drawn below and answer the questions that follow.

  a. Use the dichotomous key below to identify the class the organisms belong to. (12 marks)

  a. a. Phylum Chordata ............................................................... go to 2

  b. Phylum arthropoda ............................................................. go to 3

  b.

  a. Has scales on the body ......................................................... go to 4

  b. Has no scales on the body ..................................................... Mammalia c. a. Has cephalothorax .............................................................. Arachnida b. Has no cephalothorax .......................................................... go to 5 d.

  a. Has fins ........................................................................... Pisces

  b. Has no fins ........................................................................ go to 7

  e. a. Has three pairs of legs .......................................................... Insecta b. Has more than three pairs of legs ............................................. go to 6 f. a. Two pairs of legs per segment ................................................ Diplopoda b. One pairs of legs per segment ................................................. Chilopoda g.

  a. Has feathers ...................................................................... Aves b. Has no feathers .................................................................. go to 8 h.

  a. Has a tail .......................................................................... Reptilia

  b. Has no tail ....................................................................... Amphibia

  Specimen Step followed Identity

  A

  B

  C

  D

  E

  F

   

  Specimen	Steps	Identity
  A	1b,3a;	Arachnida
  B	1a,2a,4a;	Pisces
  C	1b,2b,5b,6b;	Chilopoda
  D	1a,2a,4b,7b,8a	Reptilia
  E	1a,2a,4b,7a;	Aves
  F	1b,3b,5a;	Insecta

  b. If the actual length from the tip of the mouth to the tip of the tail of the specimen B is 100mm, calculate the magnification. (2marks)

  b. Magnification = Diagram length/ Actual length = 50mm/100mm;

  = ×1⁄2 or ×0.5;

• Prediction Set 1

  1.Physical resources

   

• Buildings
• Motor vehicles
• Machines
• Furnitures
• Equipment

  2.Importance of entrepreneurship in a country

   

• Creates employment
• Promotes innovation and creativity
• Enhance utilisation of available resources
• Generates personal/national income
• Creation of a varirty of goods
• promote new technology
• Enhances development of enterprising culture in the country
• Enables formation of capital/wealth

  3.Personal attributes of a secretary

   

• Good personal grooming
• High standards of health
• Should manintain an upright and energetic posture proper walking styles/sitting styles
• Should be orderly in the he/she performs and organises his or her work

  4.Circumstances under which a credit note is issued

   

• When invoice is overcharged
• When goods are returned due to damage
• When goods not supplied are charged for
• Where goods not ordered for are returned
• Where the buyer returns empty packing containers for which he had charged
• Where a deserving discount is not allowed in the invoice

  5.Challenges facing cooperative societies

   

• Withdrawal of members causing financial strains to the society
• Smiall contribution by members leading to financial difficulties
• Does not attract high quality staff because of low pay
• Members are not well informed hence do not take part in the affairs of the society
• Manangement committee ar en ot qualified
• Suffer from unnecessary polituical interfererence
• Slow decision making procvess
• They are flexible
• May suffer from mismanagement/embezzlement of funds

  6.Benefits of containeristaion

   

• Carry large quantities
• Minimal damage to goods
• Goods are safe from theft and pilferage
• Low insurance premiums
• Ease of loading and offloading due to use of handling equipment
• Minimal handling cost due use of modern technology
• Containers are fitted with appropriate handling services
• Possible to transport speciliased goods using specially designed containers

  7.Advantages of E-mail

   

• Relatively cheap
• Relatively fast
• It is confidential
• Instant feedback
• User can access other information such as advertising
• It is relatively easy to retrieve information
• It is universal
• Detailed information can be sent
• The information can be used for futur reference

  8.Factors that may limit the effectiveness of a warehouse

   

• Inadequate premises to accommodate goods
• Poor/ionadequate handling equipment/machines
• Incovenient location to users
• Lack of special facilities to cater for special goods
• Unqualified and incompetent staff
• Poor security
• Non competitive with legal requiremnt
• Poor inventory control

  9.Movement along a supply curve and shift of supply curve

   

  Movement	Shift
  Only one supply curve involved	Involves two supply curves
  Caused by change in the price of a commodty	Caused by other factors besides the prices
  Is the quantity supplies that changes	It is the supply that changes
  A different quantity is supplied only at a different price	A differnt quantity is supplied at the same price as before
  Can be traced up and dpwn the smae curve	Cause the entire supply curve to move either to the left or to the right

  10.Effects of production activities on the envrionment

   

• Depletion of productive resources
• Degradation of the environment
• Pollution of air/water
• Rise in crime and anti-social activities
• Diverse effects on the ozone layer
• Disease and poor health caused by hadnling of chemicals
• Psychological diseases e.g. stress
• Noise poluution causing hearing problems