# Life Sciences Grade 11 North West June 2017 Memo > Grade 11 Life Sciences memorandum from the North West June 2017, 10 pages. Read online or get the free PDF download, question paper linked when available. - Page: https://www.hlayiso.com/library/grade-11-life-sciences-2017-north-west-june-memorandum/7639ebed-5c70-486e-a770-d81556d91747 - Updated: 2026-10-29 - Subject: Life Sciences - Grade: Grade 11 - Document type: Memorandum - Year: 2017 - Exam period: North West June - Curriculum: CAPS - Pages: 10 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 North West June 2017 Memo](https://www.hlayiso.com/library/grade-11-life-sciences-2017-north-west-june-memorandum/7639ebed-5c70-486e-a770-d81556d91747) ## About this document Life Sciences · Grade 11 · North West June · 2017. Memorandum, 10 pages. Read online or download the PDF. Read it free online on the page above; download the PDF from there. ## Document text Text extracted from the PDF. Layout, diagrams and tables may not survive extraction. ### Page 1 PROVINCIAL ASSESSMENT MEMO GRADE 11 ENGLISH FIRST ADDITIONAL LANGUAGE LIFE SCIENCES NOVEMBERMarking 2011 Guideline JUNE 2017 MARKS: 150 TIME: 2½ hours This memo consists of 9 pages. ### Page 2 Lifel Sciences/P2 2 NW/November 2016 NSC – Grade 10 QUESTION 1 1.1.1 D 1.1.2 D 1.1.3 A 1.1.4 B 1.1.5 B 1.1.6 B 1.1.7 A 1.1.8 D 1.1.9 A (9x2) (18) 1.2.1 Spermatophytes 1.2.2 Homeostasis 1.2.3 Lacteal 1.2.4 Through gut.  1.2.5 Pathogen 1.2.6 Gametophyte 1.2.7 Fermentation/Anaerobic (7x1) (7) 1.3.1 Both A and B 1.3.2 A only 1.3.3 A only 1.3.4 None 1.3.5 Both A and B (5x2) (10) 1.4.1 Virus.  (1) 1.4.2 A- Protein coat B- Nucleic acid/DNA/RNA (2) 1.4.3 transmitted through close and direct physical contact with infected bodily fluids, the most infectious being blood, faeces, vomit, detected in breast milk, urine and semen Any 2 (2) 1.4.4 Antibiotics are used to kill the bacteria that infect the tissues following weakened immune system by the virus.  (2) (7) ### Page 3 Life Sciences/P1 3 NW/June 2017 NSC – Grade 11 1.5.1 A-Rhizoid B-Capsule.  (2) 1.5.2 Anchorage and absorption of water and minerals.  (2) 1.5.3 Gametophyte (1) 1.5.4 Spores  (1) (6) TOTAL SECTION A: 50 SECTION B QUESTION 2 2.1.1 (a) Light intensity (b) Number of gas bubbles  (2) 2.1.2 According to the number  of gas bubbles released (2) 2.1.3 30 gas bubbles per minute (2) 2.1.4 Carbon dioxide,  Temperature (2) (8) 2.2.1 (a) Sponges/ Porifera (2) (b) Sponges and jellyfish (2) (c) Snails (Mollusca) and Arthropoda (2) (d) Insects, millipedes and crustaceans (3) (e) Fish (1) (f) Birds (1) 2.2.2 Marsupials (1) 2.2.3 Feathers (1) 2.2.4 Reptiles and Mammals (2) ### Page 4 Life Sciences/P1 4 NW/June 2017 NSC – Grade 11 2.2.5 Organs, nervous system, vertebrae, jaws, fingers and toes, hair Any 4 (4) (19) 2.3.1 A-Bronchiole  B- Alveolus  (2) 2.3.2 Large surface area ( due to many alveoli),  transport system (many blood vessels)  Blood vessels are in closed contact with alveoli hence easy gaseous exchange Any two (2) 2.3.3 D has low concentration of oxygen and E has high concentration of oxygen / OR D has high carbon dioxide and E has low carbon dioxide  (2) (6) 2.4.1 A- Arthropoda B – Annelida (2) 2.4.2 C B A (3) 2.4.3 The exoskeleton cannot stretch as the animal grows bigger, Moulting has to occur for growth to take place  (2) (7) TOTAL FOR QUESTION 2: 40 QUESTION 3 ### Page 5 Life Sciences/P1 5 NW/June 2017 NSC – Grade 11 3.1.1 37 800−23 800= 14 000 millions of rands (2) Assessment tool for marking the bar graph Assessment criteria Marks Correct type of graph (bar graph) 1 Title of graph present and correct 1 Correct units and Scale for y axis 1 Appropriate scale for x-axis/correct width of 1 bars 1 mark Plotting the bars 2 marks 1 bar is drawn 2 bars are drawn correctly (6) 3.1.3 (a) Wine.  (1) (b) It provides employment for many people · It provides income for people It allows the development of agri-industry for processing of raw products ### Page 6 Life Sciences/P1 6 NW/June 2017 NSC – Grade 11 It brings in foreign currency into the country/foreign exchange.  ANY (2) 3.1.4 a) sunflower  (1) (b) BEAN SEED Heading  Correct sketch  Any 2 labels  (4) (16) 3.2.1 carbohydrate  (1) 3.2.2 Source of energy/stored energy (1) 3.2.3 For people on a calorie-controlled diet OR who are allergic to a specific food OR who have specific dietary preferences e.g. vegans  ANY 2 (2) (4) Aerobic Anaerobic More energy produced a net of 36 Less energy produced a net of 2 ATP ATP ### Page 7 Life Sciences/P1 7 NW/June 2017 NSC – Grade 11 Oxygen needed Oxygen not needed Glucose incompletely broken Glucose completely broken down down into lactic acid and ethanol into CO2 and H2O and CO2   for the table (7) 3.4.1 Sterile means no micro-organisms are present/ all micro-organisms have been killed (1) 3.4.2 Microbes are found on human hair OR Microbes are not found on human hair. (2) 3.4.3 30°C.  (1) 3.4.4 This is closest to the optimum temperature for growth of bacteria (2) (6) 3.5.1 The flowers with petals attracted more insects for pollination than the flowers without petals.  OR The flowers without petals may not have attracted insects therefore less pollination. (2) 3.5.2 Some of the pollen tubes that developed were from the same flower/self- pollination occurred and only make little growth into the style/not all pollen grains make it to the ovary/does not fertilise the ovule.  (2) 3.5.3 Repeat the investigation and use the average  Increasing the size of the sample Use the same size flowers Use the same colour flowers Use the flowers of the same apple tree Ensure that all the flowers are pollen-free at the beginning of the investigation Use the same number of flowers ### Page 8 Life Sciences/P1 8 NW/June 2017 NSC – Grade 11 The same number of days for pollination/prevention of pollination/for fertilisation to take place ANY 3 (3) (7) TOTAL FOR QUESTION 3: 40 SECTION C QUESTION 4 Mouth  Mechanical digestion of all food groups in the sandwich.   teeth break foods down into small bits that you can safely swallow them  Chewing breaks food into smaller pieces and mixes it with saliva. Saliva softens the food and increases surface area for salivary amylase action on starch.   Before food passes from the mouth and down your oesophagus, salivary amylase, an enzyme in saliva, begins to digest the starch in the bread.   That is the start of chemical digestion.   The mass of chewed sandwich is called a bolus.  ANY 5(5) Stomach  the protein in polony and cheese is broken down into small units called peptides by enzymes - pepsins  Pepsin is the active protein-digesting enzyme of the stomach.   Pepsin acts on protein molecules by breaking the peptide bonds that hold the molecules together.   The stomach releases acids that create acid environment for best action of pepsin.   The stomach releases food into the small intestine in a controlled and regulated manner.  ### Page 9 Life Sciences/P1 9 NW/June 2017 NSC – Grade 11 ANY 5(5) Small intestines  Digestion of protein is completed in the small intestine by the pancreatic enzymes trypsin, chymotrypsin, and carboxypeptidase.   Fats in cheese and polony are mainly digested in the small intestine.   The presence of fat in the small intestine produces hormones that stimulate the release of pancreatic lipase from the pancreas and bile from the liver which helps in the emulsification of fats .   Lipids, or fat, present in polony and cheese go undigested in your digestive tract until they reach your small intestine, where they meet bile.   Bile contains bile salts, which act as an emulsifier of lipids This breaks the large fat droplets into smaller droplets that are then easier for the fat- digesting enzyme pancreatic lipase to digest.  Protein and starch digestion is completed in the small intestines where the end products amino acids and glucose are absorbed.   Lettuce contains fiber, which is good for avoiding constipation , it is not digested and passes through to the colon .  ANY 7 (7) Content: 17 ASSESSING THE PRESENTATION OF THE ESSAY Criterion Elaboration Mark Relevance All information No irrelevant information provided 1 provided is relevant (R) to the question Logical Ideas are arranged The process of digestion in the mouth, 1 sequence in a logical stomach and small intestine is (L) sequence discussed in the proper order Comprehensive Answered all All 3 aspects: digestion of 1 aspects required by carbohydrates, proteins and fats are (C) the essay in discussed. sufficient detail Synthesis: (3) ### Page 10 Life Sciences/P1 10 NW/June 2017 NSC – Grade 11 Section C : (20) GRAND TOTAL: 150 ## Related documents - [LIFE SCIENCES P1 GR11 MEMO NOV2017 Afrikaans](https://www.hlayiso.com/library/life-sciences-p1-gr11-memo-nov2017-afrikaans/7df20d63-e42b-4304-a4c6-711f21b5ecc5) — Life Sciences · Memo · 2017 · Afr - [LIFE SCIENCES P1 GR11 MEMO NOV2017 English](https://www.hlayiso.com/library/life-sciences-p1-gr11-memo-nov2017-english/65c6edb8-e5bf-4f1a-bd90-7583c65f4c8e) — Life Sciences · Memo · 2017 · Eng - [LIFE SCIENCES P2 GR11 MEMO NOV2017 English](https://www.hlayiso.com/library/life-sciences-p2-gr11-memo-nov2017-english/3cbd2eb3-8449-43c4-ad85-8c7853604bb7) — Life Sciences · Memo · 2017 · Eng - [Life Sciences GR 11 MEMO](https://www.hlayiso.com/library/life-sciences-gr-11-memo/33fd3910-b18e-4f7b-a2eb-d09a2f5ad461) — Life Sciences · Memo · 2019 - [Life Sciences GR 11 MEMO](https://www.hlayiso.com/library/life-sciences-gr-11-memo/fe4e7d5c-73ee-4410-bd25-deb9ed807585) — Life Sciences · Memo · 2018 - [LIFE SCIENCES P2 GR11 QP NOV2017 Afrikaans](https://www.hlayiso.com/library/life-sciences-p2-gr11-qp-nov2017-afrikaans/5c136a7a-ccf7-4459-99cd-5fb4f04747c4) — Life Sciences · QP · 2017 · 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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