# Agricultural Sciences Grade 11 P1 2022 QP (Eng) > Grade 11 Agricultural Sciences Paper 1 question paper from the Eastern Cape November 2022 (English), 15 pages. Read online or download the free PDF. - Page: https://www.hlayiso.com/library/agric-sciences-p1-qp-gr11-nov2022-english/2289e8ff-baad-4b38-9efe-30adffadec6e - Updated: 2026-09-27 - Subject: Agricultural Sciences - Grade: Grade 11 - Language: English - Document type: Question paper - Year: 2022 - Exam period: Eastern Cape November - Paper: 1 - Curriculum: CAPS - Pages: 15 Breadcrumbs: [Home](https://www.hlayiso.com/) › [Library](https://www.hlayiso.com/library) › [Grade 11](https://www.hlayiso.com/library/grade-11) › [Agricultural Sciences](https://www.hlayiso.com/library/grade-11/agricultural-sciences) › [Agricultural Sciences Grade 11 P1 2022 QP (Eng)](https://www.hlayiso.com/library/agric-sciences-p1-qp-gr11-nov2022-english/2289e8ff-baad-4b38-9efe-30adffadec6e) ## About this document Agricultural Sciences · Grade 11 · Eastern Cape November · 2022 · English. Question paper, 15 pages. Read online or download the PDF. Read it free online on the page above; download the PDF from there. ## Matching paper and memo - [AGRIC SCIENCES P1 MEMO GR11 NOV 2022 English](https://www.hlayiso.com/library/agric-sciences-p1-memo-gr11-nov-2022-english/6e634fe8-97f5-45d3-94e4-13f1ccd4aaf3) — Memo · 2022 · Eng ## Document text Text extracted from the PDF. Layout, diagrams and tables may not survive extraction. ### Page 1 Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE GRADE 11 NOVEMBER 2022 AGRICULTURAL SCIENCES P1 MARKS: 150 TIME: 2½ hours This question paper consists of 15 pages. ### Page 2 Downloaded from hlayiso.com 2 AGRICULTURAL SCIENCES P1 (EC/NOVEMBER 2022) INSTRUCTIONS AND INFORMATION 1. This question paper consists of TWO sections, namely SECTION A and SECTION B. 2. Answer ALL the questions in the ANSWER BOOK. 3. Start EACH question on a NEW page. 4. Number the answers correctly according to the numbering system used in this question paper. 5. You may use a non-programmable calculator. 6. Show ALL calculations, including formulae, where applicable. 7. Write neatly and legibly. Copyright reserved Please turn over ### Page 3 Downloaded from hlayiso.com (EC/NOVEMBER 2022) AGRICULTURAL SCIENCES P1 3 SECTION A QUESTION 1 1.1 Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A–D) next to the question numbers (1.1.1 to 1.1.10) in the ANSWER BOOK, for example 1.1.11 A. 1.1.1 … is an example of an inorganic compound. . A Glucose B Ammonia C Fats D Alkanes 1.1.2 The type of bond formed when two amino acids are joined resulting in the loss of water. A Covalent B Ionic C Peptide D Hydrogen 1.1.3 The following are properties of acids. (i) They release hydrogen ions into water to form a hydronium. (ii) They corrode active metals. (iii) They are proton acceptors. (iv) They have a high concentration of hydrogen ions. Choose the correct combination: A (i), (iii) and (iv) B (ii), (iii) and (iv) C (i), (ii) and (iv) D (i), (ii) and (iii) 1.1.4 An advantage of a good soil structure for a farmer is ... A improved emergence of seedling due to increased soil crusting. B increased waterlogging for root penetration. C increase soil crusting with improved biological activity. D reduced salt imbalances due to enhanced buffering capacity of soil. Copyright reserved Please turn over ### Page 4 Downloaded from hlayiso.com 4 AGRICULTURAL SCIENCES P1 (EC/NOVEMBER 2022) 1.1.5 The following statement is TRUE about the difference between soil air and atmospheric air. A Soil air contains ten times less carbon dioxide than atmospheric air. B Soil air contains less oxygen and a greater amount of water as compared to atmospheric air. C Atmospheric air is much more concentrated with carbon dioxide and nitrogen than soil air. D Atmospheric air is more concentrated with moisture than soil air. 1.1.6 The mottled appearance in soil is an indication of the following: (i) The reduction of red ferric ion to bluish-grey ferrous ion. (ii) Many flecks in the subsoil. (iii) Patches of rust, yellow and grey colours. (iv) Waterlogging for part of the day. Choose the correct combination: A (i), (iii), and (iv) B (ii), (iii) and (iv) C (i), (ii) and (iv) D (i), (ii) and (iii) 1.1.7 The bulk density of soil is influenced by the following factors except … A heat capacity of soil. B mineral composition C degree of compaction. D size of soil particles. 1.1.8 The exposed cross-section, from top to bottom, of all the layers making up a particular soil is known as ... A soil form. B soil family. C soil horizon. D soil profile. 1.1.9 The … is the point at which plants wither and die. A permanent wilting B temporal wilting C field capacity D water saturation 1.1.10 The following is the physical influence of organic matter on soil. A Increased CAC value B Improved aeration C Increased microbe activity D Increased availability of nutrients (10 x 2) (20) Copyright reserved Please turn over ### Page 5 Downloaded from hlayiso.com (EC/NOVEMBER 2022) AGRICULTURAL SCIENCES P1 5 1.2 Indicate whether each of the descriptions in COLUMN B applies to A ONLY, B ONLY, BOTH A AND B or NONE of the items in COLUMN A. Write A only, B only, both A and B or none, next to the question numbers (1.2.1 to 1.2.5) in the ANSWER BOOK, for example 1.2.6 B only. COLUMN A COLUMN B A: Period Elements with the same number of 1.2.1 B: Group electrons in their outer orbital A: Ionic bonds The bonding in which the atoms that are 1.2.2 B: Electrovalent bonds bonded share electrons A: Prismatic The structural units are vertically longer 1.2.3 B: Columnar than they are broad, with an either rounded or flat top A: Sodium carbonate Organic matter is dispersed and deposited 1.2.4 B: Calcium carbonate on the upper layers of soil A: Assimilation The process whereby a substance is 1.2.5 B: Ammonification made soluble (5 x 2) (10) 1.3 Give ONE word/term for each of the following descriptions. Write only the word/term next to the question numbers (1.3.1 to 1.3.5) in the ANSWER BOOK. 1.3.1 The disaccharide formed when a glucose molecule bonds with fructose 1.3.2 A characteristic of a carbon atom that enables it to bond with itself to form a long chain 1.3.3 The gas that reduces the oxidation process caused by oxygen 1.3.4 The horizon characterised by anaerobic soil conditions 1.3.5 Conversion of ammonium compounds to nitrites and nitrates (5 x 2) (10) Copyright reserved Please turn over ### Page 6 Downloaded from hlayiso.com 6 AGRICULTURAL SCIENCES P1 (EC/NOVEMBER 2022) 1.4 Change the UNDERLINED WORD(S) in EACH of the following statements to make it TRUE. Write only the answer next to the question numbers (1.4.1 to 1.4.5) in the ANSWER BOOK. 1.4.1 Propanol is the product of fermentation of sugar in alcoholic drinks. 1.4.2 Soil compaction is the arrangement of soil particles into units to give a distinctive characteristic pattern. 1.4.3 Cation exchange is the collection of the substance on the surface of the colloid. 1.4.4 The moisture that is held tightly by the soil particles and cannot be used by plants is capillary. 1.4.5 Nitrogen assimilation is the process in which nitrates are converted into gaseous forms under low oxygen conditions. (5 x 1) (5) TOTAL SECTION A: 45 Copyright reserved Please turn over ### Page 7 Downloaded from hlayiso.com (EC/NOVEMBER 2022) AGRICULTURAL SCIENCES P1 7 SECTION B QUESTION 2: BASIC AGRICULTURAL CHEMISTRY Start this question on a NEW page. 2.1 The table below shows substances used in agriculture. SUBSTANCE A SUBSTANCE B SUBSTANCE C Water and NaCl Sand and Salt NH3 2.1.1 Identify the SUBSTANCE A, B and C from the table above that suit each of the descriptions below: (a) Components can be separated by physical means (b) Used as a household cleaning product (c) Can form a homogenous mixture (3) 2.1.2 Indicate the role of water in SUBSTANCE A. (1) 2.1.3 Write the structural formula of SUBSTANCE C. (2) 2.1.4 Components in SUBSTANCE A are regarded as compounds. Justify this statement. (2) 2.2 The structure below shows a carbohydrate. 2.2.1 Classify the carbohydrate illustrated by the structure above. (1) 2.2.2 Write the chemical formula of a carbohydrate in the structure above. (2) 2.2.3 Name TWO important functions of the carbohydrate illustrated in the above structure. (2) Copyright reserved Please turn over ### Page 8 Downloaded from hlayiso.com 8 AGRICULTURAL SCIENCES P1 (EC/NOVEMBER 2022) 2.3 Below are food types containing different fats. FOOD TYPE A FOOD TYPE B MEAT 2.3.1 Classify the fat in the food types above as saturated and unsaturated. (2) 2.3.2 Identify the fat from the food types above that is recommended to be included in a diet. (1) 2.3.3 Give TWO reasons for the answer in QUESTION 2.3.2. (2) 2.3.4 Distinguish between the fat found in food type A and in food type B with regard to the following: (a) Reaction at room temperature (2) (b) Bond between the carbon atoms (2) 2.4 Proteins are complex organic compounds and have different functions depending on their shape. 2.4.1 Name the building block of a protein molecule. (1) 2.4.2 What is the difference between simple and complex proteins? (2) 2.4.3 Indicate the reason for giving animals protein in each of the following situations: (a) Injured animal (1) (b) Newly born animal (1) Copyright reserved Please turn over ### Page 9 Downloaded from hlayiso.com (EC/NOVEMBER 2022) AGRICULTURAL SCIENCES P1 9 2.5 The table below shows basic groups of organic compounds, structural formula as well as molecular formula. NAME OF A FUNCTIONAL STRUCTURAL MOLECULAR COMPOUND GROUP FORMULA FORMULA H H H A Hydrocarbon H C C C H B (1) H H H (1) Ethanol C D C2H5OH (1) (2) H O E Carboxyl H C C OH CH3 COOH (1) H 2.5.1 Complete the table by providing labels A to E. (6) 2.5.2 Identify the compound that can be used in alcoholic beverages. (1) 2.5.3 Indicate ONE importance of the compound labelled A for rural communities. (1) [35] Copyright reserved Please turn over ### Page 10 Downloaded from hlayiso.com 10 AGRICULTURAL SCIENCES P1 (EC/NOVEMBER 2022) QUESTION 3: SOIL SCIENCE Start this question on a NEW page. 3.1 The texture diagram below is used by soil analysts to classify the soil into different texture classes, based on the relative proportion of particles. 3.1.1 Use the texture diagram above to determine the texture class of the following samples: (a) 60% clay, 20% sand and 20% silt (1) (b) 30% clay, 40% sand and 30% silt (1) 3.1.2 Compare the texture class mentioned in QUESTION 3.1.1(a) with a texture class on the texture diagram above containing 90% sand particles with regard to the following: (a) Tillability of soil (2) (b) Degree of plasticity (2) 3.1.3 Give TWO reasons why it is important for the farmer to know the texture class of the soil on the farm. (2) Copyright reserved Please turn over ### Page 11 Downloaded from hlayiso.com (EC/NOVEMBER 2022) AGRICULTURAL SCIENCES P1 11 3.2 An experiment was conducted to determine the movement of water in the soil. Three soil samples containing sand, silt and clay were set up and placed in a pan with water. The following observations were made: SAMPLE A SAMPLE B SAMPLE C Water took 5 hours to Water took 30 minutes to Water took an hour to rise and reached the rise and reached the lowest reach half the level of highest level of the level of the container the container container 3.2.1 Indicate the water movement that was demonstrated in the experiment. (1) 3.2.2 Give a reason for the answer in QUESTION 3.2.1. (1) 3.2.3 Based on the observation, identify soil SAMPLES A and C. (2) 3.2.4 Name the way in which the water can be lost in SAMPLE B. (1) 3.2.5 Advise the farmer on a method to put in place to reduce the water loss stated in QUESTION 3.2.4. (1) 3.3 A soil scientist conducted an experiment to test the influence of soil gas on seed germination and growth. Same seeds were planted in two containers labelled A and B. In container A seeds were planted in a well aerated soil rich in fresh organic matter and given water when required. In container B seeds were planted in waterlogged soil conditions. 3.3.1 Predict the results of the experiment in container A and B. (2) 3.3.2 Explain a reason for the answer in QUESTION 3.3.1 for container B by referring to the gas. (2) 3.3.3 Activities in container A can result in the accumulation of a gas. Give the name of this gas. (1) 3.3.4 Give TWO reasons for the high amount of gas mentioned in QUESTION 3.3.3. (2) 3.4 The data below shows the soil temperature readings from 06:00 until 18:00. TEMPERATURE TEMPERATURE READING TIME READING 5 cm DEEP (°C) 30 cm DEEP (°C) 06:00 08 04 08:00 10 04 10:00 14 05 12:00 21 12 14:00 27 16 16:00 24 18 18:00 19 16 3.4.1 Deduce the factor influencing soil temperature from the table above. (1) Copyright reserved Please turn over ### Page 12 Downloaded from hlayiso.com 12 AGRICULTURAL SCIENCES P1 (EC/NOVEMBER 2022) 3.4.2 Draw a bar graph showing soil temperature readings at different depths during different times of the day. (6) 3.4.3 Explain the trend of temperature in the soil at 5 cm deep. (2) 3.5 An 80 cm3 soil sample was collected and dried after which a mass of 680 g was recorded. 3.5.1 Calculate the bulk density of the sample above. (3) 3.5.2 Comment with a reason on the suitability of the soil for deep rooted crops based on its bulk density (2) [35] Copyright reserved Please turn over ### Page 13 Downloaded from hlayiso.com (EC/NOVEMBER 2022) AGRICULTURAL SCIENCES P1 13 QUESTION 4: SOIL SCIENCE Start this question on a NEW page. 4.1 The table below shows soil profiles with different combinations of soil horizons: SOIL PROFILE SOIL PROFILE SOIL PROFILE SOIL PROFILE A B C D A A A B C E G C B C 4.1.1 Identify the soil profile (A, B, C or D) that best suits each of the descriptions below: (a) Needs to be drained before cultivation of crops (1) (b) Shows sign of erosion (1) (c) Indicates the degree of leaching (1) 4.1.2 Name the horizon that is associated with each of the following statements: (a) Receives eluviated material (1) (b) Mixture of inorganic matter and fully decomposed organic matter (1) (c) Soil is directly formed through physical weathering (1) 4.1.3 Indicate TWO possible diagnostic horizons that may occur in soil profile C. (2) 4.2 Soil classification is a systematic way of grouping soil into classes according to certain characteristics. Procedure is followed when classification is done. 4.2.1 Re-arrange the steps below in the correct sequence which are followed when classifying soil: • Establish soil form • Determine soil series • Series characteristics are identified • Identify diagnostic horizons • Demarcate master horizons (5) 4.2.2 State TWO levels of classes used in South Africa to classify the soil. (2) Copyright reserved Please turn over ### Page 14 Downloaded from hlayiso.com 14 AGRICULTURAL SCIENCES P1 (EC/NOVEMBER 2022) 4.3 The schematic representation below illustrates the cation adsorption on the surface of the colloids. 4.3.1 Identify the type of colloid represented in the schematic representation above. (1) 4.3.2 Differentiate between the colloid mentioned in QUESTION 4.3.1 and the other colloid with regard to the shape. (2) 4.3.3 Indicate the condition of the colloid labelled A and B based on the cation adsorbed. (2) 4.3.4 Name TWO factors that may be the cause of the colloidal condition mentioned in QUESTION 4.3.3 for the colloid labelled A. (2) 4.3.5 State the detrimental effect of the cation that is dominant on the colloid labelled C on the soil structure. (1) 4.3.6 Suggest TWO ways to correct the colloidal condition labelled C physically. (2) Copyright reserved Please turn over ### Page 15 Downloaded from hlayiso.com (EC/NOVEMBER 2022) AGRICULTURAL SCIENCES P1 15 4.4 The picture below shows nutrient cycling. 4.4.1 Identify the letter that shows the processes in which a carbon compound is incorporated into living organisms. (1) 4.4.2 Name TWO processes visible in the diagram showing the return of carbon dioxide into the atmosphere. (2) 4.4.3 Decomposition process in the pictures above is done by micro- organisms which need certain conditions to survive. Justify this statement by mentioning THREE of these conditions. (3) 4.5 A symbiotic relationship occurs between certain plants and micro-organism for the benefit of both. 4.5.1 Give the name of a micro-organism involved in the following relationships: (a) Fix nitrogen for the legume crops (1) (b) Assist plant roots to absorb phosphorus from the soil (1) 4.5.2 Explain the symbiotic relationship between legume crops and the micro- organism mentioned in QUESTION 4.5.1(a). (2) [35] TOTAL SECTION B: 105 GRAND TOTAL: 150 Copyright reserved Please turn over ## Related documents - [AGRIC SCIENCES P2 GR11 QP NOV2022 English](https://www.hlayiso.com/library/agric-sciences-p2-gr11-qp-nov2022-english/d1fde2f8-de36-45f8-b078-44db36531c0a) — Agricultural Sciences · QP · 2022 · Eng - [AGRIC SC P1 QP GR11 NOV 2018 English](https://www.hlayiso.com/library/agric-sc-p1-qp-gr11-nov-2018-english/b3647a2d-3de3-492b-a4b1-197c7e771644) — Agricultural Sciences · QP · 2018 · Eng - [AGR SCIENCES P1 QP NOV2017 English](https://www.hlayiso.com/library/agr-sciences-p1-qp-nov2017-english/86c9404f-9361-4cc7-b174-1cdada40645f) — Agricultural Sciences · QP · 2017 · Eng - [AGRIC SCIENCES P2 GR11 MEMO NOV2022 English](https://www.hlayiso.com/library/agric-sciences-p2-gr11-memo-nov2022-english/94869f28-a123-4b24-80d4-38cca1989ca4) — Agricultural Sciences · Memo · 2022 · Eng - [AGRIC SC P2 QP GR11 NOV 2020 English](https://www.hlayiso.com/library/agric-sc-p2-qp-gr11-nov-2020-english/982a8aaf-898a-40cf-a2ae-5c5aac575c46) — Agricultural Sciences · QP · 2020 · Eng - [AGR SCIENCES P2 GR11 QP NOV2018 English](https://www.hlayiso.com/library/agr-sciences-p2-gr11-qp-nov2018-english/966639d2-f595-4c40-b4c7-fc406d97de45) — Agricultural Sciences · QP · 2018 · Eng ## More from Grade 11 Agricultural Sciences - [Gr 11 Agric Sci ATP 2023-24](https://www.hlayiso.com/library/gr-11-agric-sci-atp-2023-24/06bad6ac-81c6-4c4f-95ed-6a17594131f0) — ATP - [AGRIC SCIENCES P1 MEMO GR11 NOV 2024 AFR watermark](https://www.hlayiso.com/library/agric-sciences-p1-memo-gr11-nov-2024-afr-watermark/379d01ed-6e35-4c93-bbcc-3379030ea999) — Memo · 2024 · Afr - [AGRIC SCIENCES P1 MEMO GR11 NOV 2023 English watermark](https://www.hlayiso.com/library/agric-sciences-p1-memo-gr11-nov-2023-english-watermark/c86b6ee9-2023-4831-ab3f-f3d486e16fa3) — Memo · 2023 · Eng - [AGRIC SCIENCES P1 MEMO GR11 NOV 2023 English](https://www.hlayiso.com/library/agric-sciences-p1-memo-gr11-nov-2023-english/f9be8154-ad0b-404d-b98b-fefa2a93599f) — Memo · 2023 · Eng - [AGRIC SCIENCES P2 GR11 MEMO NOV2023 English](https://www.hlayiso.com/library/agric-sciences-p2-gr11-memo-nov2023-english/12eea2a3-0788-4dc2-8256-4149992c75ca) — Memo · 2023 · Eng - [AGRIC SCIENCES P2 GR11 MEMO NOV2023 English watermark](https://www.hlayiso.com/library/agric-sciences-p2-gr11-memo-nov2023-english-watermark/ec0c6d72-9681-46b4-bd8e-d0fe7a26c928) — Memo · 2023 · Eng ## Collection - [Grade 11 past papers](https://www.hlayiso.com/grade-11/past-papers) --- Hlayiso: free CAPS and IEB past papers, memos, notes and study guides for South African learners. 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