Agricultural Science Question Paper Grade 11 For March 2014

Agricultural Science Question Paper Grade 11 For March 2014 Agricultural Science Question Paper Grade 11 March 2014 Instructions This question paper consists of four sections A B C and D Answer all questions in each section Write your answers in the spaces provided on the question paper Use black or blue ink only Show all your working in calculations The marks allocated to each question are indicated in brackets Total Marks 100 Time Allowed 3 hours Section A Multiple Choice 20 marks Instructions Choose the best answer from the options provided and write the letter of your choice in the space provided Each question carries 1 mark 1 Which of the following is a characteristic of a dicotyledonous plant a Tap root system b Parallel venation c Floral parts in multiples of three d Single cotyledon in the seed 2 The process of converting atmospheric nitrogen into a usable form by microorganisms is called a Nitrogen fixation b Nitrification c Denitrification d Ammonification 3 Which of the following is a soil conservation technique a Deforestation b Overgrazing 2 c Contour farming d Monoculture 4 The main function of the root system of a plant is a Photosynthesis b Absorption of water and nutrients c Reproduction d Support 5 Which of the following is an example of a pest that damages crops a Earthworm b Ladybird beetle c Aphids d Fungi 6 The scientific name for the common bean is a Phaseolus vulgaris b Zea mays c Oryza sativa d Triticum aestivum 7 Which of the following is a symptom of a plant disease a Wilting b Galls c Leaf spots d All of the above 8 The main component of organic matter in soil is a Sand b Silt c Clay d Humus 9 Which of the following is a benefit of crop rotation a Increased soil fertility b Control of pests and diseases c Improved soil structure d All of the above 10 The process by which water moves from the soil into the roots of a plant is called 3 a Transpiration b Absorption c Diffusion d Osmosis 11 Which of the following is a common type of fertilizer a Urea b Superphosphate c Potassium chloride d All of the above 12 The process of applying pesticides to crops is called a Fumigation b Spraying c Dusting d All of the above 13 Which of the following is a type of livestock a Chicken b Cow c Pig d All of the above 14 The main purpose of a milking machine is to a Extract milk from the udder b Pasteurize milk c Store milk d Transport milk 15 Which of the following is a type of poultry disease a Newcastle disease b Avian influenza c Salmonella d All of the above 16 The process of removing unwanted plants from a field is called a Weeding b Harvesting c Sowing d Ploughing 4 17 Which of the following is a type of farm machinery used for planting crops a Tractor b Plough c Harvester d Planter 18 The process of converting raw milk into cheese is called a Pasteurization b Homogenization c Fermentation d All of the above 19 Which of the following is a type of agricultural product a Cotton b Wheat c Coffee d All of the above 20 The main function of a farm manager is to a Oversee all farm operations b Grow crops c Raise livestock d Market agricultural products Section B Short Answer Questions 30 marks Instructions Answer the following questions in the space provided Each question carries 2 marks unless otherwise stated 1 Explain the difference between a monocot and a dicot plant 2 List three benefits of using organic fertilizers 3 Describe two methods of controlling weeds in a field 4 Explain the importance of soil aeration 5 What is the difference between a pest and a disease 6 Give two examples of common agricultural pests 7 Explain the difference between a fungicide and an insecticide 8 List three important factors to consider when selecting a crop variety 5 9 Describe two methods of preserving agricultural products 10 What is the role of a veterinary officer on a farm 11 Explain the difference between a dairy cow and a beef cow 12 What is the purpose of crop rotation 13 Describe two benefits of using farm machinery 14 What is the role of a farm cooperative 15 Explain the importance of good recordkeeping in agriculture Section C Long Answer Questions 30 marks Instructions Answer the following questions in the space provided Each question carries 5 marks 1 Discuss the importance of soil fertility for crop production Explain how soil fertility can be maintained and improved 2 Describe the life cycle of a typical insect pest Explain how knowledge of the insect life cycle can be used to control pest populations 3 Outline the steps involved in the production of a dairy product such as milk or cheese 4 Discuss the challenges faced by farmers in developing countries Suggest ways to address these challenges 5 Explain the concept of sustainable agriculture Discuss how sustainable agricultural practices can benefit both farmers and the environment Section D Practical Application 20 marks Instructions Answer the following questions based on the provided scenario Scenario You are a young farmer who is planning to start a smallscale poultry farm 1 Choose a suitable breed of chicken for your farm considering factors such as egg production meat yield and adaptability to your local climate Justify your choice 2 Describe the housing requirements for your poultry farm including the type of housing ventilation lighting and space allocation per bird 3 Outline a feeding program for your chickens taking into account their age and stage of production Explain the importance of providing a balanced diet 6 4 Discuss the biosecurity measures you would implement to prevent disease outbreaks on your poultry farm 5 Explain how you would market and sell your poultry products to ensure profitability End of Question Paper