# Life Sciences Grade 11 P2 Eastern Cape November 2012 Memo > Grade 11 Life Sciences Paper 2 memorandum from the Eastern Cape November 2012 (English), 7 pages. Read online or download the free PDF. - Page: https://www.hlayiso.com/library/lfsc-p2-n12-memo-eng/3fa7f3eb-343c-4c3b-a19a-8fa85f8b27ea - Updated: 2026-09-27 - Subject: Life Sciences - Grade: Grade 11 - Document type: Memorandum - Year: 2012 - Exam period: Eastern Cape November - Paper: 2 - Curriculum: CAPS - Pages: 7 Breadcrumbs: [Home](https://www.hlayiso.com/) › [Library](https://www.hlayiso.com/library) › [Grade 11](https://www.hlayiso.com/library/grade-11) › [Life Sciences](https://www.hlayiso.com/library/grade-11/life-sciences) › [Life Sciences Grade 11 P2 Eastern Cape November 2012 Memo](https://www.hlayiso.com/library/lfsc-p2-n12-memo-eng/3fa7f3eb-343c-4c3b-a19a-8fa85f8b27ea) ## About this document Life Sciences · Grade 11 · Eastern Cape November · 2012. Memorandum, 7 pages. Read online or download the PDF. 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Layout, diagrams and tables may not survive extraction. ### Page 1 Downloaded from hlayiso.com Province of the EASTERN CAPE EDUCATION NATIONAL SENIOR CERTIFICATE GRADE 11 NOVEMBER 2012 LIFE SCIENCES P2 MEMORANDUM MARKS: 150 This memorandum consists of 7 pages. ### Page 2 Downloaded from hlayiso.com 2 LIFE SCIENCES P2 (Memo) (NOVEMBER 2012) SECTION A QUESTION 1 1.1 1.1.1 A  1.1.2 A  1.1.3 B  1.1.4 C  1.1.5 A  1.1.6 A  1.1.7 C  1.1.8 D  1.1.9 D  1.1.10 B  (10x2) (20) 1.2 1.2.1 Immunity  1.2.2 Thallus  1.2.3 Eukaryotes  1.2.4 Mycelium  1.2.5 Bacteria  1.2.6 Biodiversity  1.2.7 Vector  1.2.8 Plasmodium  1.2.9 Virus  (9x1) (9) 1.3 1.3.1 None  1.3.2 A only  1.3.3 Both A and B  1.3.4 None  1.3.5 B only  1.3.6 B only  1.3.7 None  1.3.8 A only  (8x2) (16) 1.4 1.4.1 2003  (1) 1.4.2 88 559  (1) 1.4.3 The number of TB cases increased from 1997 to 2003  and decrease slightly in 2004.  (2) 1.4.4 Probably due to an increase in the population. /More people living in poor conditions  (Any 1) (1) TOTAL SECTION A: 50 ### Page 3 Downloaded from hlayiso.com (NOVEMBER 2012) LIFE SCIENCES P2 (Memo) 3 SECTION B QUESTION 2 2.1 2.1.1 A Sporangium  B Sporangiophore  C Rhizoid  (3) 2.1.2 Sexually  and Asexually  (2) 2.1.3  They plays a role as decomposers   Serves as food for humans.   Have medical value /used to produce antibiotics  Use in the baking and brewing industries.  (Mark first THREE answers only) (3) 2.1.4  rust/blight   ergot   black rot   scab  (Any 2) (2) 2.2 2.2.1 130  (120 - 140) mg/unit dry mass (2) 2.2.2  Some of these nitrogen-fixing bacteria may live inside the roots of soya beans   They would absorb free-nitrogen  from the air in the soil and convert it into nitrates   The soya bean plant would then use these nitrates to make other nitrogen compounds   Thus increasing the level of nitrogen inside the plant.  (Any 3) (3) 2.2.3 Mutualism  Not commensalism since both organism  benefit whereas in commensalism only one benefits./Plant benefits by getting nitrates from bacteria  whilst bacteria get carbohydrates from the plant  1+(Any 2) (3) 2.2.4  When soya bean plants die   nitrifying bacteria will convert the nitrogen compounds in them to nitrates   Nitrates will be converted to free nitrogen   by denitrifying bacteria in the soil. (Any 3) (3) ### Page 4 Downloaded from hlayiso.com 4 LIFE SCIENCES P2 (Memo) (NOVEMBER 2012) 2.3 2.3.1 It is a chemical substance  that reduces the growth  of bacteria by killing them/preventing them from reproducing (2) 2.3.2 They provide the bacteria with nutrients for growth.  (1) 2.3.3  To make sure that the agar plates are set up in sterile conditions.  To make sure that the agar plates are not contaminated with other bacteria and fungi. (Any 1) (1) 2.3.4  Kept all plates at the same temperature.   Ensured that the plates had the same amount of nutrients  in the same concentration  (Any 2x1) (2) 2.3.5  Antibiotic 3 was the most effective in destroying the bacteria.   Antibiotic 2 was ineffective against the bacteria.   Antibiotic 1 was fairly effective  (3) [30] QUESTION 3 3.1 3.1.1 A Bryophytes  B Pteridophytes  C Gymnosperms  D Angiosperms  (4) 3.1.2 (a) Bryophytes /moss/A and Pteridophytes /ferns/B (2) (b) Gymnosperms/C and Angiosperms /D (2) 3.1.3  No true root, stem or leaves   No conducting tissue   No stomata   Have rhizoids   No cuticle  (Any 3x1) (3) 3.2 3.2.1 Protista  (1) 3.2.2 9 (1) 3.2.3 (a) Porifera  (1) (b) Cnidaria  (1) 3.2.4 (a) Porifera  (1) (b) Platyhelminthes  (1) 3.2.5  Annelida   Arthropoda   Chordata  (3) ### Page 5 Downloaded from hlayiso.com (NOVEMBER 2012) LIFE SCIENCES P2 (Memo) 5 3.3 3.3.1  The issuing of a licence is one way of controlling the number   of fishermen that will be catching fish   in obtaining a licence the fishermen are acknowledging that they are aware of the conditions   relating to size restrictions and catch limits.   This increases the chances of fishermen abiding by the regulations  (Any 2x1) (2) 3.3.2 Not more than four per day  (1) 3.3.3  To ensure that the shad population is not eliminated  ensures that a fair number of shad remain   To reproduce  and increase the population once again.  This would allow for more sustainable use  of the shad as a food source. (Any 3x1) (3) 3.3.4  Confiscation of catch   Payment of a sum of money for each shad over the limit   Cancelling their licence   Imprisonment  (Any 1x1) (1) 3.3.5  Catching small fish would prevent them from reaching a reproductive age   at which they would be able to contribute to a population increase.   Restricting the capture of smaller fish is therefore in the best interests of a sustainable use of this resource.  (3) [30] TOTAL SECTION B: 60 ### Page 6 Downloaded from hlayiso.com 6 LIFE SCIENCES P2 (Memo) (NOVEMBER 2012) SECTION C QUESTION 4 4.1 4.1.1 Limpopo  (1) 4.1.2 North West  (1) 4.1.3  South Africa is rich in species diversity   Higher species diversity in plants than in animals   The highest species diversity of plants is in the Western Cape  The lowest species diversity of plants is in the North West   Bird species are the highest amongst the animal species.  (Any 3x1) (3) 4.1.4 Total number of plant species in provinces 10 000 9 000 8 000 Number of species 7 000 6 000 5 000 4 000 3 000 2 000 1 000 0 EC FS GP KZN LIM MP NC NW WC Provinces Guideline for the assessing of the graph Correct type of graph 1 Title of graph 1 Correct label of x-axes 1 Correct scale of x-axes, same width of bars 1 Correct label of y-axes 1 Correct scale of y-axes 1 Plotting of points 1 : 1 to 3 points plotted correctly 2 : 4 to 6 points plotted correctly 3 : 7 to 9 points plotted correctly NOTE: If the wrong type of graph is drawn, 4 marks will be lost for:  Correct type of graph  Plotting of points’ If labels of the axes are transposed then 4 marks will be lost for:  Correct label and scale for X and Y axes (9) ### Page 7 Downloaded from hlayiso.com (NOVEMBER 2012) LIFE SCIENCES P2 (Memo) 7 4.2 4.2.1  Cycads have tall stems,   palm like leaves,   cones and   separate male and female plants  (Any 2x1) (2) 4.2.2 Police  who enforce conservation laws. OR Police who identify stolen cycads  and trace the owners of these cycads  (2) 4.2.3  Microchips are implanted into the trunk of the cycads   DNA technology is also used  (2) 4.3 The Bat  The forelimbs have become wings   for flying.   The first digit is hook-like to hang from trees ,  while the last four digits have become elongated to make up the wing  max 3 The monkey  The forelimbs are very long   to allow it to grasp trees while it is climbing   and swinging  max 2 The mole  Has a pair of short, spade-like forelimbs   that are modified for digging  max 2 The seal  The forelimbs have become flippers   for steering  and  maintaining equilibrium during swimming.  max 3 The horse  The forelimbs are adapted for support  and  running   with the third digit being very elongated ending in a hoof  max 3 Charles Darwin’s explanation:  Forelimbs of mammals arose from a common ancestor  in which the forelimb had the same pattern.   The forelimbs of the five mammals show variations  because of having been modified  to perform different functions  max 4 (17) Marks Descriptions 3 Well structured – demonstrates insight and understanding of question 2 Minor gaps in the answer 1 Attempted but with significant gaps in the answer 0 Not attempted/nothing written other than question number Synthesis (3) TOTAL SECTION C: 40 GRAND TOTAL: 150 ## Related documents - [LFSC P2 N12 MEMO Afr](https://www.hlayiso.com/library/lfsc-p2-n12-memo-afr/6cdd78bc-2138-4296-8258-4e4784d697b7) — Life Sciences · Memo · 2012 · Afr - [LFSC P2 N12 QP Eng](https://www.hlayiso.com/library/lfsc-p2-n12-qp-eng/bb2dbc6b-791e-4bee-8ed1-a469fb93256f) — Life Sciences · QP · 2012 · Eng - [LIFE SCIENCES P2 GR11 MEMO NOV2022 Afrikaans](https://www.hlayiso.com/library/life-sciences-p2-gr11-memo-nov2022-afrikaans/56b8976d-2a83-4671-af07-a62c8516e9ab) — Life Sciences · Memo · 2022 · Afr - [LIFE SCIENCES P2 GR11 MEMO NOV2022 English](https://www.hlayiso.com/library/life-sciences-p2-gr11-memo-nov2022-english/5e4f2d46-8ff1-4960-8554-4261f7558dec) — Life Sciences · Memo · 2022 · Eng - [LIFE SCIENCES P2 QP MEMO GR11 NOV2020ENG D](https://www.hlayiso.com/library/life-sciences-p2-qp-memo-gr11-nov2020eng-d/b7bbcfe8-9385-4ec1-9522-81e69ccee458) — Life Sciences · Memo · 2020 - [LIFE SCIENCES P2 MEMO GR11 NOV2020 AFR D](https://www.hlayiso.com/library/life-sciences-p2-memo-gr11-nov2020-afr-d/7f5cb60e-cb8a-4743-8ce5-10187763b753) — Life Sciences · Memo · 2020 · Afr ## More from Grade 11 Life Sciences - [Gr 11 Life Sci ATP 2023-24](https://www.hlayiso.com/library/gr-11-life-sci-atp-2023-24/4ab88214-8173-4f6e-98ea-ab509ada756b) — ATP - [LEWENSWETENSKAPPE V1 GR11 QP NOV2025 Afrikaans 2 watermark](https://www.hlayiso.com/library/lewenswetenskappe-v1-gr11-qp-nov2025-afrikaans-2-watermark/06b74e7f-2b60-466c-b6f3-5daac44e39cb) — QP · 2025 · Afr - [LIFE SCIENCES P2 QP GR11 NOV 2025 ENG watermark](https://www.hlayiso.com/library/life-sciences-p2-qp-gr11-nov-2025-eng-watermark/0249505b-9116-4f42-870c-e7cabeed0f37) — QP · 2025 · Eng - [KZN Life Sciences Grade 11 June 2025 QP and Memo](https://www.hlayiso.com/library/kzn-life-sciences-grade-11-june-2025-qp-and-memo/31a59d87-a46a-4536-91d0-2fe1264e946a) — QP + Memo · 2025 - [EC Life Sciences Grade 11 June 2024 QP and Memo](https://www.hlayiso.com/library/ec-life-sciences-grade-11-june-2024-qp-and-memo/68ed48c4-d02f-4f7f-97fb-736190106d11) — QP + Memo · 2024 - [LIFE SCIENCES P2 GR11 QP NOV2024 ENG D](https://www.hlayiso.com/library/grade-11-life-sciences-2024-eastern-cape-november-exam-question-paper-paper-2-english/4eed64dd-0499-4ee7-97e7-817805e1413f) — QP · 2024 · 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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