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Gr.11 T2 Revision Booklet Life Sciences 2023
Life Sciences Grade 11 Term 2 revision material 2023
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GRADE 11 LIFE SCIENCES TERM-2 SBA TASK (ASSIGNMENT) ON PHOTOSYNTHESIS AND MEMORANDUM (2023)
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GRADE 11 LIFE SCIENCES TERM-2 SBA TASK (ASSIGNMENT) ON PHOTOSYNTHESIS
PREPARED IN MAY 2023
TASK IS OUT OF 50 MARKS
ADVISED DURATION IS: 50 MINUTES
THERE ARE INVESTIGATION,DRAWING,SHORT ESSAY,TABLE AND EXPERIMENTAL QUESTIONS
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Life Sciences Grade 11 Study Notes for Term 2
Term 2: CAPS Topics Overview
- Week 1: Orientation
- Week 2-3: Photosynthesis (CAPS p. 42)
- Week 4-5: Cellular Respiration (CAPS p. 45)
- Week 6-11: Animal Nutrition (CAPS p. 43)
Core Concepts, Skills, and Values
- Revise basic cell structure from Grade 9 and 10
- Revise basic photosynthesis and respiration from Grade 8
Table of Contents
Term 2 Week 2-3: Photosynthesis Grade 11 Notes
Photosynthesis is a vital biological process that allows plants, algae, and some bacteria to convert light energy into chemical energy, ultimately producing food for themselves and oxygen for other organisms. Let’s break down the process and its significance.
- Intake of raw materials: Photosynthesis requires three primary raw materials: water (H2O), carbon dioxide (CO2), and light energy (usually from the sun). Water is absorbed through the roots and transported to the leaves, while carbon dioxide enters the plant through small pores called stomata.
- Trapping and storing energy: In the chloroplasts of plant cells, light energy is trapped by chlorophyll, a green pigment, and other accessory pigments. This energy is stored in the form of adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate (NADPH), which are energy-rich molecules.
- Formation of food in chloroplasts and storage: The energy stored in ATP and NADPH is used to convert CO2 into glucose through a series of reactions called the Calvin cycle. Glucose can be used as an immediate energy source or transformed into other complex carbohydrates (such as starch and cellulose) for storage.
- Release of oxygen: During the light-dependent phase of photosynthesis, water molecules are split into hydrogen and oxygen atoms. The hydrogen atoms are used to produce ATP and NADPH, while the oxygen atoms combine to form molecular oxygen (O2), which is released as a byproduct.
- Light and dark phase: Photosynthesis consists of two main stages: the light-dependent phase (or light reactions) and the light-independent phase (or dark reactions). The light-dependent phase occurs in the thylakoid membranes of chloroplasts and generates ATP and NADPH. The light-independent phase, also known as the Calvin cycle, occurs in the stroma of chloroplasts and uses ATP and NADPH to synthesize glucose from CO2.
Importance of photosynthesis:
- Release of oxygen: Oxygen produced during photosynthesis is essential for aerobic organisms, including humans, who rely on it for cellular respiration.
- Uptake of carbon dioxide: Photosynthesis helps regulate Earth’s atmosphere by removing CO2, a greenhouse gas, and converting it into glucose.
- Food production (trapping energy): Photosynthesis is the basis of the food chain, providing energy and organic matter for all other organisms, either directly or indirectly.
Effects of variable conditions on photosynthesis:
- Light: Photosynthesis rates increase with light intensity up to a certain point, after which they plateau.
- Carbon dioxide: Higher CO2 concentrations generally lead to increased photosynthesis rates, but only up to a certain threshold.
- Temperature: Photosynthesis rates are affected by temperature, with optimal rates occurring within a specific temperature range.
Greenhouse systems and ATP’s role in the cell: Greenhouse systems are designed to optimize photosynthesis by controlling light, temperature, and CO2 levels. They also maintain proper humidity and provide essential nutrients to maximize plant growth. ATP, generated during photosynthesis, plays a crucial role in cellular processes as it serves as the primary energy currency for cells.
Investigation: Light is necessary for photosynthesis: Experiments using plants grown in the dark or under different light conditions show that light is essential for photosynthesis. In the absence of light, plants cannot produce ATP and NADPH, which are needed for the Calvin cycle, ultimately leading to a lack of glucose production and limited growth.
- Intake of raw materials
- Trapping and storing energy
- Formation of food in chloroplasts and storage
- Release of oxygen
- Mention only, no biochemical detail required
- Uptake of carbon dioxide
- Food production (trapping energy)
- Light, carbon dioxide, temperature
- Greenhouse systems and ATP’s role in the cell
- Investigation: Light is necessary for photosynthesis
Downloadable PDF download:
Week 4-5: Cellular Respiration Grade 11 Notes
Cellular respiration is a fundamental biological process that allows cells to convert nutrients into energy, which is necessary for all living organisms to survive and thrive. In Grade 11, students delve into the intricacies of cellular respiration, focusing on both aerobic and anaerobic respiration.
Aerobic respiration is a type of cellular respiration that occurs in the presence of oxygen. This process takes place in the cytoplasm and mitochondria of cells, and it involves three main stages: glycolysis, the Krebs cycle, and oxidative phosphorylation.
- Glycolysis: This stage occurs in the cytoplasm and involves the breakdown of glucose, a six-carbon sugar, into two molecules of pyruvate, a three-carbon compound. This process generates a small amount of ATP (adenosine triphosphate), the cell’s primary energy currency, and NADH, an electron carrier.
- Krebs cycle: Also known as the citric acid cycle or TCA cycle, the Krebs cycle occurs in the mitochondria. During this stage, pyruvate is further broken down into CO2, ATP, and high-energy electron carriers like NADH and FADH2.
- Oxidative phosphorylation: This final stage also occurs in the mitochondria and involves the electron transport chain (ETC). The high-energy electrons carried by NADH and FADH2 are transferred along the ETC, ultimately generating a large amount of ATP through a process called chemiosmosis.
Anaerobic respiration, on the other hand, occurs in the absence of oxygen. One common example is lactic acid fermentation, which takes place in our muscles during strenuous exercise. In this process, pyruvate is converted into lactic acid, which helps regenerate NAD+ to keep glycolysis going and produce small amounts of ATP.
Anaerobic respiration also plays a crucial role in various industries. For example, in beer brewing and bread making, yeast cells undergo alcoholic fermentation, a type of anaerobic respiration that produces ethanol and CO2. The CO2 generated in this process is responsible for the rising of bread dough and the carbonation in beer.
When comparing aerobic and anaerobic respiration, the most significant difference is the presence or absence of oxygen. Aerobic respiration is much more efficient, producing a large amount of ATP, while anaerobic respiration generates only a small amount of ATP.
Investigations into cellular respiration often involve studying the consumption of oxygen and production of carbon dioxide. Oxygen is required by living organisms during aerobic respiration, as it acts as the final electron acceptor in the ETC, forming water. Simultaneously, carbon dioxide is produced as a waste product in both aerobic (during the Krebs cycle) and anaerobic respiration, as glucose or other organic molecules are broken down. These processes highlight the critical role of cellular respiration in the energy metabolism of living organisms.
- In cytoplasm and mitochondria
- Glycolysis, Krebs cycle, oxidative phosphorylation (no biochemical detail required)
- Lactic acid production in muscles during exercise
- Role in industries like beer brewing and bread making
- Comparison between aerobic and anaerobic respiration
- O2 is required by respiration
- CO2 is produced by living organisms during respiration
Week 6-11: Animal Nutrition
- Dentition differences for herbivores, carnivores, and omnivores
- Macro-structure of the alimentary canal and associated organs
- Functions of different parts
- Ingestion, digestion, absorption, assimilation, egestion
- Significance of each process
- Types and functions of different teeth
- Processes of chewing and peristalsis
- Enzymes: carbohydrases, proteases, lipases
- Production, substrate, pH, and end-products
- Small intestine adaptations for absorption
- Structure and significance of villi
- Importance of hepatic portal system
- Hormonal control of blood sugar levels (links with Grade 12)
Consolidation and Revision
- Review and consolidate material covered in Term 2
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Life Science Grade 11 Photosynthesis Practicals Memo
On this page, you will find Life Science Grade 11 Photosynthesis Practicals Memo for 2020, 2019, and 2018. Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism’s metabolic activities.
Important Terms to know for Photosynthesis Practicals
- Photosynthesis: A process whereby green plants manufacture their own food using radiant energy
- Chloroplast: Organelle in a plant cell where photosynthesis occur
- Chlorophyll: Green pigment that trap light for photosynthesis
- Light phase: Occurs in the grana of the chloroplast
- Dark phase: Occurs in the stroma of the chloroplast
- ATP: Energy carrier in the living things used for various activities
- Iodine solution: Used to test for the presence of starch
- Autotrophs: Organisms that use light energy to manufacture its own food
- Experiment: A scientific procedure undertaken to make a discovery, test a hypothesis or demonstrate a known fact.
- Glucose: Sugar that is the product of photosynthesis
- Variegated: Leaf that has more than one colour
- Greenhouse: Special building that is used for growing plants in an area where they would not normally grow that well.
- Destarch: Process of eliminating starch reserves in a plant for experiments concerning photosynthesis
- Control: A variable that is not changed throughout an experiment
- Heterotrophs: Organisms that are unable to manufacture their own food (consumers &decomposers)
- Starch: A carbohydrate that store energy in plants
- Limiting factor: Factor that limits the rate at which photosynthesis takes place
List of Life Science Grade 11 Photosynthesis Practicals and Memo
List of Life Science Grade 11 Photosynthesis Practicals and Memo for various years
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Life Sciences Grade 11 2020 Past Exam Papers and Memos
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Life Science Grade 11 Photosynthesis Practical Question Papers
Life Science Grade 11 Photosynthesis Practical Question Papers:
Photosynthesis is a process whereby light is converted into chemical energy. Sunlight is changed into the chemical energy of sugars and other organic compounds.
This process consists of a series of chemical reactions that require carbon dioxide (CO2) and water (H2O) and store chemical energy in the form of sugar. Photosynthesis occurs in the chloroplast. It is an anabolic process and requires enzymes.
Grade 11 Photosynthesisi Revision
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Life Science Grade 11 Photosynthesis Practical Question Papers (South Africa)
Life Science Grade 11 Photosynthesis Practical Question Papers (South Africa):
Photosynthesis is a process whereby light is converted into chemical energy. Sunlight is changed into the chemical energy of sugars and other organic compounds.
This process consists of a series of chemical reactions that require carbon dioxide (CO2) and water (H2O) and store chemical energy in the form of sugar. Photosynthesis occurs in the chloroplast. It is an anabolic process and requires enzymes.
Table of Contents
Grade 11 Photosynthesisi Revision
Hello Grade 11 Learners. Modern Classroom has everything for you needed to pass your exams, tests, assessments, research tasks and assignments under CAPS Curriculum . Feel free to explore all resources for grade 11, such as Study Guides, DBE Past Exam Papers with Memos , and Speech Topics. That’s if you want to know how to pass grade 11 with distinctions in South Africa
Why passing Grade 11 is very important
Grade 11 ultimately prepares you for Grade 12. You regard Grade 11 as your last trial run for your Matric year because most of the work covered in the syllabus will prepare you for Matric anyway. Passing your Grade 11 very well, is usually a sign that you may pass very well in Matric.
What can you do with your Grade 11 marks in South Africa?
- You can apply at a South African University using your Grade 11 marks
- You can already apply for university bursaries using your Grade 11 marks
Other Grade 11 Subjects
- Accounting Grade 11
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- IsiXhosa Home Language Grade 11
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- Setswana Home Language Grade 11
- Seswati Home Language Grade 11
- Afrikaans Home Language Grade 11
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- Xitsonga Home Language Grade 11
- Tourism and Hospitality Studies Grade 11
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Life Sciences Grade 11 Term 2 revision material 2023. ... Download. Type: pdf . Size: 1.43MB . Share this content. Life Sciences Grade 11 Term 2 revision material 2023. Language: English. Curriculum Alignment: CAPS aligned. Publication Date: ...
TERM 2 GRADE 11 LIFE SCIENCES 2020 . 2 Content Page No. 1. Cover Page 1 2 Table of Content 2 3. Photosynthesis 3 A Topic Plan 3 B Terminology 4 C Teaching Tools 5 D Classwork/ Homework 7 4. Animal Nutrition 20 A Topic Plan 20 B Terminology 21 ...
20 x 2 = (40) Question 2 Give one word for each of the following: 2.1 Organisms who manufacture their own organic food. 2.2 The process during which green plants convert the energy of the sun into useful energy. 2.3 What does ATP stand for? 2.4 The wax layer on a leaf that limits water loss. 2.5 A group of stacked thylakoids.
These are Life Sciences Grade 11 Chapter 4 Photosynthesis lecture notes. chapter photosynthesis photosynthesis introduction greenhouses the definition of. ... Life Sciences Grade 11 Chapter 2 Biodiversity of plants; Related Studylists Gr 11 notes Life Sciences Bio. ... The term photosynthesis means light is used (photo) to manufacture ...
Revision exercises based on GDE Remote learning booklet Grade 11 - 2021 Term 2 SUPPORT QUESTION 2 Give the correct biological term for each of the following descriptions. Write only the term next to the question number (2.1 to 2.3) in your ANSWER BOOK. 2.1 2.2 2.3 The green, light-trapping pigment in photosynthesis found in plant
Grade 11 photosynthesis into detail :Light phase ,dark phase, definitions and ect photosynthesis support document plus solutions term grade 11 life sciences ... LIFE Assignment 1; KZN Physical Science Grade 12 June 2023 P1 and Memo; 2021 Life Sciences Gr 11 ATP; ... TERM 2. GRADE 11. LIFE SCIENCES. APRIL 2020. Content Page No. B. TERMINOLOGY ...
TERM 2 GRADE 11 LIFE SCIENCES APRIL 2020 . Content Page No. 1. Cover Page 1 2 Table of Content 2 3. Photosynthesis 3 A Topic Plan 3 ... Importance of photosynthesis Activity 4.2 Activity 8.1 6 Greenhouse system & food production The role of ATP Activity 6 Activity 9 Activity 3 7 Topic test
GRADE 11 LIFE SCIENCES TERM-2 SBA TASK (ASSIGNMENT) ON PHOTOSYNTHESIS PREPARED IN MAY 2023 TASK IS OUT OF 50 MARKS ADVISED DURATION IS: 50 MINUTES THERE ARE INVESTIGATION,DRAWING,SHORT ESSAY,TABLE AND EXPERIMENTAL QUESTIONS GOOD LUCK!
Life Sciences Grade 11 Term 2 Test 11.2.1 Photosynthesis and respiration MEMORANDUM Question 1 1.1 C 1.2 B 1.3 D 1.4 A 1.5 B 1.6 D 1.7 D 1.8 A 1.9 B 1.10 C 1.11 D ... Photosynthesis is the primary source of energy for life on earth (1) Photosynthesis produces oxygen (1)
June Question Paper and Memo Download. September P3 Question Paper and Memo Download. Life Science September Question Paper and Memo Download. November Paper 1 Question Paper and Memo Download. November Paper 2 Question Paper and Memos Download. Hello Grade 11 Learners. Modern Classroom has everything for you needed to pass your exams, tests ...
January 12, 2024 by My Courses Editor. Life Sciences Grade 11 Latest Assignment and Memos for CAPS Curriculum (Syllabus) South Africa: A National Curriculum and Assessment Policy Statement (CAPS) is a single, comprehensive, and concise policy document introduced by the Department of Basic Education for all the subjects listed in the National ...
January 10, 2024 by My Courses Editor. Life Sciences Grade 11 Study Notes for Term 2. Term 2: CAPS Topics Overview. Week 1: Orientation. Week 2-3: Photosynthesis (CAPS p. 42) Week 4-5: Cellular Respiration (CAPS p. 45)
2023 WORKBOOK | Grade 11 LIFE SCIENCES 3 • Photosynthesis is the process by which chlorophyll in the chloroplasts of green plants absorbs radiant energy from the sun, carbon dioxide from the atmosphere and water from the soil to produce carbohydrates (e.g., glucose) which is stored in the plant. • Oxygen is released into the atmosphere during the process.
Termplan: Life Sciences (Grade 11) - Term 2 Term 2 Theme Time (fill in the date) Content/Investigations Material Photosynthesis 3 weeks Theory Slides: Photosynthesis • S11.2.1_E Worksheet: Photosynthesis • WS11.2.1_E& memo Practical: Practical: Investigate photosynthesis by showing that starch is produced during
On this page, you will find Life Science Grade 11 Photosynthesis Practicals Memo for 2020, 2019, and 2018. Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities. Important Terms to know for Photosynthesis Practicals Photosynthesis: A ...
January 25, 2024 by @Career Times Manager. Life Science Grade 11 Photosynthesis Practical Question Papers: Photosynthesis is a process whereby light is converted into chemical energy. Sunlight is changed into the chemical energy of sugars and other organic compounds. This process consists of a series of chemical reactions that require carbon ...
LIFE SCIENCES GRADE 11 DATE 07 April 2020 TOPIC Photosynthesis TERM 1 REVISION TERM 2 ... eating to the energy captured by photosynthesis. (4,5) 11 An animal that eats plants. (9) 12 A process that occurs in green plants whereby they trap sunlight energy and use it to make food and
Photosynthesis is a process whereby light is converted into chemical energy. Sunlight is changed into the chemical energy of sugars and other organic compounds. This process consists of a series of chemical reactions that require carbon dioxide (CO2) and water (H2O) and store chemical energy in the form of sugar. Photosynthesis occurs in the ...
Watch on. In this live Grade 11 Life Sciences show we take a close look at Photosynthesis. In this lesson we review the structures of the leaf, study the process of photosynthesis as well as look at the importance of photosynthesis. We look at the effects of varying amounts of light, carbon dioxide & temperatures on the rate of photosynthesis.
Micro organisation life sciences grade 11 remote learning workbook term basic cell structure (focus on chloroplast and leave structure) notes exam tips ... L 64067 LIFE Skills Assignment 3; LIFE Sciences Grade 12 Trial 2021 P2 and Memo; ... 2ª coleccion Micro I 19-20 (10) NSG 307 Exam 2 Blueprint; Life Science Grade 11 November 2022 QP and ...
Exam papers and Study notes for Life Science . Grade 11. Download free question papers and memos. Study notes are available as well. Skip to content ... Life Science(Grade 11) Share. STUDY NOTES KZN March 2024 QP and Memo below . KZN Scope 2024. Past Year Exam Papers (updated 2024/03/25) advertisement.
Life Sciences Grade 11 Assignment May 2022 NATIONAL SENIOR CERTIFICATE GRADE 11 LIFE SCIENCES ASSIGNMENT - ... Name TWO other factors that are required for photosynthesis. (2) (b) from 40 °C to 50 °C. (1) ... View Grade 10 Assignments term 2 . 2022.pdf from BIOLOGY BOTANY at University of South... Quiz 6.docx.