Agricultural Sciences Paper 1 (English)

November 2023 — Grade 12 / Matric — Agricultural Sciences

Past Paper 2023 Grade 12 English Agricultural Sciences Hub →

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🎯 150 marks 📄 16 pages 📝 101 items found 📚 4 topics

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Q1— Section header —

1.1Various options are provided as possible answers to the following questions. Choose the answer and write only the le tter (A D\ next to the question numbers (1.1.1 to 1.1.10\the ANSWER BOOK, e.g. 1.1.11 B.

1.1.1ONE of the following is NOT part of the fore stomach compartments of a ruminant

1.1.2An exampl e of a protein rich concentrate

1.1.3Tubular indentations of the epithelium between the villi th at secrete succus entericus Islet

1.1A nutritive ratio of 1 4 implies that: (i\ (ii\ (iii\ (iv\ The feed has high protein content

1.5A farmer producing crops or livestock to generate profit using highly advanced technologies

1.1.6The following are the requirements for an ideal poul try housing facility: (i\ Lengthwise

1.1.7The microscopic organism that live outside the body of the host which

1.1.8ONE of the following is NOT a sign of poor health in farm animals: Rough and dull coat with hair loss Too soft faeces and discoloured urine Bright eyes with pink membranes High

1.1sign of cow approaching parturition

1.110 factor that results in infertility in cows:

1.2Indicate whether each of the descriptions in COLUMN B appl ies to A ONLY B ONLY BOTH A AND B or

1.2.1A: Bile Breaks down fa ts into fine droplets B: Liver

1.2.2A: Pharynx An organ that helps farm animals to distinguish between different feeds B: Tongue

1.2.3A: Heterothermic The ability of farm animals to maintain a constant body temperature B: Homeothermic 1.

2.4A: Thorn apple Poisonous plants that should be prevented by avoiding storing feeds under wet conditions B: Poison bulb

1.2.5A: Prostaglandin Hormones used in synchronising oestrus in cows B: Progesterone (5 x 2\ (10\

1.3Give ONE word/term for each of the follow ing descriptions. Write only the word/term next to the question numbers (1.3.1 to 1.3.5\in the ANSWER BOOK.

1.3.1The enzyme that breaks down starch molecules especially in pigs

1.3The small area where sheep are kept under intensive conditions and ed for maximum production

1.3.3reproductive technique where semen is collected from a superior bull and deposited into the reproductive tract of a cow in oestrus

1.3.4Cows that need to mate three or more times before conce iving

1.3.5The inability of a bull to service cows that are in oestrus even though it has interest (5 x 2\ (10\ gricultural Sciences/P1 DBE/ November 2023

1.4Chang e the underlined word(s\ in each of the following statements to make them TRUE. Write only the answer next to the question numbers (1.4.1 to 1.4.5\the ANSWER BOOK.

1.4.1Digestible energy refers to the energy left after deducti ng e nergy loss through heat from metabolic energy

1.4.2The i ntroduction of natural enemies to control parasite infestation is a chemical method.

1.4.3The centriole releases an enzyme that ass ist the sperm cell to penetrate the ovum

1.4.4Di oestrus happens when sexually mature female animals show no signs of standing heat.

1.4.5Gestation period refers to the period in cows between two lactations. (5 x 1\ (5\ TOTAL SECTION A: 45 gricultural Sciences/P1

2.1The picture below shows the alimentary canal of a sheep.

2.1.1Identify in the picture above only the LETTER of the PART where EACH of the following occ

2.1.2Name ONE function of the small intestine (1

2.1.3Compare the structure of the oesophagus in sheep with that of fowl (2\

2.2Th e biological value of protein is determined by the amino acid composition and some other factors . Animals need amino acids that their bodies cannot produce, but in ruminant animals the protein quality of feeds is of less

2.2.1Give a colle ctive name for the amino acids that cannot be produced in animal bodies. (1\

2.2Explain why the protein quality of feeds in ruminant

2.3An ox was fed 24 kg dry matter and excreted kg manure with 81% d ry material. Calculate the digestibility coefficient of the feed

2.4The schematic representation below shows the components of a feed. 2. .1 Pro vide the labels for

2.4.2 State TWO functions of water (2\

2.4.3 Write down the letter that represents the component suitable for feed ing young animals

2.5.1 Refer to the Pearson square above to indicate the parts of this ration that r epresent EACH of the following:

2.5Calc ulate the percentage of oatmeal in the given mixture. Show ALL calculations. 3\

2.6The table below shows a fodder flow program me on the provision and feed requirement for beef cattle over a period of one year.

2.6.1Calculate the quantity of feed required (in kg\ during t he first six months of the year . Show ALL calculations. (3\

2.6.2Give TWO reasons why fodder flow planning is important (2\

2.6Use th e data in the table above to draw a line graph on quantities of feed required by beef cattle and the production of lucerne

Q3— Section header —

3.1The pictures below refer to a production system in pigs. PICTURE A PICTURE B

3.1.1ndicate (a\ The production system used by the

3.1.2Identify t he animal handling facility in picture (1

3.1.3Give ONE reason for housing pigs in the facility in picture

3.1.4Deduce TWO factors from picture that contribute to increase production. (2\

3.2Choose an explanation from the list below that matches the animal behaviour in QUESTIONS

3.2.1to

3.2.5. Write only the letter (A E\ next to the question nu mber

3.2.1Female animals in the herd mount other females and allow other animals to mount them (1\

3.2.2A flock of farm animals looks healthy and graze calmly on natural pasture (1\

3.2.3Animals head butting each other (1\

3.2.4Animals do not want to enter a gate leading to a passage area (1\

3.2.5Animal become aggressive after giving birth (1\ gricultural Sciences/P1 11 DBE/

3.3The facilities below are u sed for handling farm animals.

3.3.1Identify facilit ies and above. (2

3.3.2Indicate the purpose of using facility (1\

3.3.3Give TWO reasons for handling farm animals using the facilities bov e. (2

3.4State TWO basic requirements for transporting farm animals. (2\ 3. A mosquito borne viral disease that

3.5.1 Name the disease described in the scenario above. (1\

3.5.2 Identify an example of EACH of the following in the scenario above: (a\ Vector (b\

3.5.3 The disease in the scenario above is deemed otifiable . Justify this statement

3.5.4 Give a term for the description which indicates that the disease can infect people if the y handle infected blood, tissues and other body

5.5Suggest TWO economic implications of animal diseases to farmer (2\ gricultural Sciences/P1

3.6.1 Classify the parasite above according to the life cycle. (1\

3.6.2 Give a reason for the answer to

Q3— Section header —

3.6.3 Identify THREE stages in the life cycle of the parasite above. (3\ 3. Below is a list of internal parasites that affect farm animals. Choose the parasite above that matches

Q4— Section header —

4.1The diagrams below show male and female reprodu ctive organs DIAGRAM 1 DIAGRAM 2

4.1.1Label and in the diagrams above

4.1.2Identify the LETTER of the part in DIAGRAM 1 and DIAGRAM 2

4.2.1 Identify the reproductive process represented in the icture above. (1\

4.2.2 Indicate the actual stage of the process

Q4— Section header —

4.2.3 State TWO sexual behaviour al signs that are display ed by bulls

Q4— Section header —

4.2.4 tate TWO factors that regulate the action in bulls during the process identified in

Q4— Section header —

4.3The schematic representation below illustrates the processes o reproductive technique in farm animals.

4.3.1 Identify the type of reproductive technique illustrated in and above

4.3.2 Indicate the purpose of EACH type of reproductive technique in

Q4— Section header —

4.3.3 State TWO disadvantages o f the reproductive technique illustrated in the representation above.

4.4.1 Identify the processes represented in DIAGRAM and DIAGRAM above.

4.4.2 Label and (3

4.4.3 Name the type of cell division that resulted in (1\

4.5It is important fo r the farmer to observe the cow prio r, during and after parturition because this process can be negatively affected by many factors.

4.5.1Give the term that refers to birth difficulty in cows (1\

4.5.2State TWO problems associated with the foe tus that may interfere with the normal parturition process. (2

4.5.3State TWO factors that may cause retention of the placenta. (2\ gricultural Sciences/P1 16 DBE/ November 2023 NSC Copyright reserved

4.6.1 Ident ify part and (2\

4.6.2 Indicate the LETTER that represent the part where milk is produced. (1\

4.6.3 Name the hormone responsible for EACH of the following function (a\ Synthesis of

Topics Identified

Plant ProductionAnimal ProductionAgricultural ManagementSoil Science

Mark Allocation

Total150 marks

Sections35 + 35 + 35 = 105 marks

Paper information

SubjectAgricultural Sciences

Year2023

SessionNovember

TypePast Paper

PaperPaper 1

LanguageEnglish

Pages16

Downloads9

Examination context

Decade2020s

Years ago3y

SeasonSpring (SH)

Start daySunday

Exam periodNovember 2023

Days since exam1,084

About Agricultural Sciences examination preparation

Grade 12 Agricultural Sciences combines scientific knowledge with the application and interpretation of agricultural concepts.

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Corresponding marking memorandum

Marking memorandum available

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Agricultural Sciences Memo 1 (English) →

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