Agricultural Sciences Paper 1 (english)

November 2009 — Grade 12 / Matric — Agricultural Sciences

Past Paper 2009 Grade 12 English Agricultural Sciences Hub →

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🎯 150 marks 📄 15 pages 📝 103 items found 📚 4 topics

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Q1— Section header —

1.1

1.1.11The protein used as an indica tor to compare the essential amino

1.1.1egg protein. peanut-oilcake protein. fish protein. lucerne protein.

1.1.2The end products of digestion which are absorbed in the rumen of amino acids.

1.1.3animal which corresponds to the

1.1.4

1.1.8The most important equipment that a beef farmer needs in order to measure the production out put of his/her animals:

1.1.5

1.1.6in the livestock industry. One of the following is NOT a characteristic of pale meat obtained from is more firm. is tough.

1.1.7

1.1.9characteristics is NOT obtained by Greater vitality Better fertility Genetic uniformity

1.1.10

1.2Decide whether the description in COLUMN B relates to A only, B only, both A and B or NONE of the make a cross (X) in the ANSWER SHEET. COLUMN B A: Oatmeal

1.2.1B: Maize meal Protein-rich concentrate A:

1.2.2B: Vaccines Substances that are inserted into animals to increase their growth A: Blood slides

1.2.3B: Body temperature Measurements used to determine the health status of the animal A: Corpus luteum

1.2.4B: Remain(s) until the end of A: Mites

1.2.5B: Blowflies which attack the tail areas (10) Agricultural Sciences/P1 DoE/November 2009

1.3Give ONE term/phrase for each of t he following descriptions. Write only the term/phrase next to the ANSWER SHEET.

1.3.1digestion takes place

1.3.2The structure in the wall of t absorption surface

1.3.3An animal production system t hat is capital and labour intensive

1.3.4cavity

1.3.5(10)10

1.4

1.4.1mineral content of a feed.

1.4.2temperature requirements of animals in a herd and the availabili optimal production.

1.4.3Breeding is crucial in reducing the e ffects of extreme environmental

1.4.4Using measured quantities of f eed which are directly linked to the exact quantity needed by an conventional farming.

1.4.5Castration is the period that starts wit h the fertilisati on of the ovum (5) TOTAL SECTION A:

2.1.1the younger ruminant. Give a reason for your answer by referring to the above diagrams. (2)2

2.1.2A to D in Diagram 1 and structures labelled E to H in Di agram 2 in the digestive systems (4)4

2.1.3Name the structures label led I and J in Diagram 2 above. (2)2

2.1.4the digestion of crude fibre (cellulo se). Explain your answer by referring to the adaptation of this (4) Diagram 1

Q2— Section header —

2.1Identify the digestive system of Tabulate the labels pair them with similar indicated above. From the above diagrams, indicate the part that is most suitable for organ for the digestion of cellulose. NSC

2.2The schematic represent

2.2.1Name the labels represented by A and C in the above schematic representation. (2)2

2.2.2Give THREE reason s why it is important value of a feed. (3)3

2.2.3increases the lipid or fat content of a feed. (2)2

2.2.4Select from ruminant and mono gastric animals a farm animal that answer. (3)3

2.3ed with sheep to determine the digestibility ll as the mass of excretion. The table below shows the data from Moisture

2.3.3classified as protein rich or lucerne hay as a feed. Calculate the co-efficient of digestib

2.3.4Only lucerne hay was used as a feed to supply nutritional requirements for these sheep. Supply TWO reasons why lucerne hay lucerne hay. (2)2

2.3.5the digestibility of lucerne hay. (3) [35] START THIS QUESTION ON A NEW PAGE.35

3.1You investigated the production output combining the dai animal was calculated value, and the cost of their breedi ng and genetic impr were also calculated as such index values.

3.1.1(1)1

3.1.3Determine the feedlot which oper way. Explain your answer by referring to the given data. Deduce from the data the most co st-efficient way to improve the output of a feedlot. (3)3

3.1.4(1)1

3.1.5Recommend ONE possible met improve the genetic potential of animals in a feedlot. (1) Agricultural Sciences/P1

Q3— Section header —

3.2Read the following scenario with regard to two dairy farmers: Farmer A: In a rural area of the count enterprise with 30 cows. T hey are milked by hand with milking is done under a tr

3.2.1Explain the meaning of opt imum environmental temperature as (1)1

3.2.2Predict the effect of extreme temperatures (too high temperatures and too low temperatures) on feed intake. (2)2

3.2.3control high temperatures in this dairy production unit. (2) Agricultural Sciences/P1 10 DoE/November 2009 Copyright reserved Please turn over ry a small-scale farmer operates a dairy

3.3Moving animals is a common practice ansport them to markets. Indicate THREE requirements for the (3)3

3.4change from the conventional farming system involves lucerne pastures under the consultant of the internationally recognised organic farmers' association.

3.4.1Indicate the main reason why this farmer is being inspected by the consultant of the organi c farmers' association. (1)1

3.4.2ents or criteria for organic farming (5)5

3.4.3Explain the necessity for organic farmers to register with a marketing of their produce. (2)2

3.4.4(2)2

3.5.1Name the month of the year when the grazing has its lowest for this by referring to climatic conditions. (3) Nutritional value (TDN)

3.5.2Describe TWO observations, wit h regard to the condition of a grazing pasture, that a farmer would make to measure its nutritive value. (2)2

3.5.3The farmer needs to decide when to Indicate the season of the year t hat this farmer would schedule to main reason for your answer. (2)2

3.5.4When will this farmer need to include mineral licks in the pasture fields? (1)1

3.5.5ION 3.5.4 by referring to the given data. (2) [35] Agricultural Sciences/P1 1235

3.5Natural grazing is the cheapest fo animals. The graph below represents the nutritional value of a natural grazing Natural grazing is the cheapest fo animals. The graph below represents the nutritional value of a natural grazing

4.1.1Explain the way ticks transmit diseases to animals. (2)2

4.1.2restrict infectious diseases. (3)3

4.2embryo starts with fertilis ation and ends wit h the birth of the young. The diagrams below indi cate a developed embryo and some of

4.2.1Name the hormone responsible for the release of the ovum and also name this process. (2)2

4.2.2Identify the site where fert ilisation occurs in Diagram 1. (1)1

4.2.3State TWO functions of t embryo. (2)2

4.2.4(2)2

4.2.5about to give birth. (2) 13 DoE/November 2009 Copyright reserved Please turn over ciences/P1

Q4— Section header —

4.3.1NameTHREE harmful effects of the animal pest shown in the above diagram. (3)3

4.3.2Suggest how the animal in the (1)1

4.3.3Identify the TWO hosts which are required by the pest to complete its life cycle. (2)2

4.3.4The pest in the above diagram ha human beings after consumption of animal products are not contaminated by this pest. (1)1

4.3.5your answer. (2)2

4.3.6State the specific name of the pest that is involved in this case. (1) Agricultural Sciences/P1 14 DoE/November 2009 Copyright reserved Please turn over The diagram below illustrates the

4.4The picture below depicts egg pr system.

4.5The following are examples of vitami Vitamin D; Vitamin K; Vitamin A; Vitamin B 12

4.5.1Curled-toe paralysis in chickens (1)1

4.5.2Osteomalacia in adu lt animals (1)1

4.5.3Night-blindness (1)1

4.5.4Prolonged clotting of blood (1)1

4.5.5(1) [35] TOTAL SECTION B: 105 15035

Q1— Section header —

1.3.1_____________

1.3.2_____________

1.3.3_____________

1.3.4_____________

1.1.5_____________

1.1.10(10 x 2) (20)20

Q1— Section header —

Topics Identified

Plant ProductionAnimal ProductionAgricultural ManagementSoil Science

Mark Allocation

Total150 marks

Sections35 + 35 + 35 = 105 marks

Per-question sum185 marks

Paper information

SubjectAgricultural Sciences

Year2009

SessionNovember

TypePast Paper

PaperPaper 1

LanguageEnglish

Pages24

Downloads4

Examination context

Decade2000s

Years ago17y

SeasonSpring (SH)

Start dayThursday

Exam periodNovember 2009

Days since exam6,196

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