assignment life science grade 12

Life Sciences Grade 12 Latest Assignment and Memos CAPS

Life Sciences Grade 12 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 Curriculum Statement for Grades R – 12.  CAPS gives detailed guidance for teachers on what they should teach and how to assess.

On this page you will find Life Sciences Grade 12 Assignment and Memos for Term 1, Term 2, Term 3, and Term 4.

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Available Assignment and Memos Life Sciences Grade 12

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Life Sciences Grade 12 for 2022, 2021, 2020 Exemplars, Past Exam Papers and Study Guides

[vc_row][vc_column][vc_column_text]Life Sciences Grade 12 Subject Exemplars, Past Exam Papers and Study Guides 2022, 2021, 2020: Learning Resources, Revision Notes, Revision Videos, Past Papers and Memos Pdf for download, Free Study Guides, and Text books.

Past Exam Papers for Life Sciences   Grade 12   include February/March, June, September, and November the following years: 2022, 2021, 2020, 2019, 2018, 2017, and 2016. Papers in English and Afrikaans languages for Paper 1, and Paper 2.

How Past Exam Papers Can help you pass Grade 12 in 2022?

Passing Matric with great marks requires an incredible great effort combined with different strategies available for learners today. One of the best strategies is to use past exam paper exemplars which are available on Modern Classroom website.  Previous exam papers for grade 12 assist you to:

• Get used to the way exam papers are structured, as well as the language used to assess learners .
• Learn how to manage your time in the exam room.
• Helps identify key subject areas to focus on in revision.
• Understand the way in which marks are allocated for different types of questions and section from the provided syllabus
• Practice writing skills

On this page, you will find previous exemplars preparatory exam papers for: Gauteng, Limpopo , Western Cape , Eastern Cape , Northern Cape , Kwazulu Natal , Mpumalanga , Free State , and North West Province for CAPS curriculum.

Some of the useful resources on this page include: Exercises, Class Assessments Plans, Assignments and Answers, Research Tasks, Essays Topics and more. Resources are for all terms: Term 1, Term 2, Term 3, and Term 4.

Modern Classroom is here for you Modern Classroom has plenty of examination preparation free resources for   Grade 12   Learners, as well as info about primary and secondary schools available in South Africa.

Have you explored what Modern Classroom can offer you?

Hello Learners? Don’t leave your studies until the last minute. While some students do seem to thrive on last-minute cramming, it’s generally accepted that this is not the best way to approach your exams and tests. To help sort out your study time management, set up a proper timetable for your study. Write down how many tests, assignments, and exams you have and the days on which you have to sit them. Then organise your studies accordingly. You may want to give some exams more study time than others, so find a balance that you feel comfortable with.

Modern Classroom has plenty of free exam preparation resources for all   Grade 12 subjects. We also have other free resources for learners in other grades as well, including Grade 11 , Grade 10 , and other grades.

List of Life Sciences Grade 12 Subject Exemplars, Past Exam Papers, and Study Guides 2022, 2021, 2020

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Latest Life Sciences Grade 12 Past Papers, Memos, and Study Guides for 2021, 2020, 2019 and more

[vc_row][vc_column][vc_column_text]Latest Life Sciences Grade 12 Past Papers , Memos, and Study Guides for 2021, 2020, 2019 and more: On this page, you will find learning materials ( Previous Papers, Notes, Lessons Practicals, Assessments – SBA,  Assignment questions and answer memos , Tests and Research Task s)  for CAPS and  IEB ( The Independent Examinations Board, or IEB, is a South African independent assessment agency which offers examinations for various client schools , mostly private schools. It is most prominent in setting examinations for the school-leaving National Senior Certificate, or NSC for its client schools ). The IEB offers support in terms of the CAPS curriculum examinations and sets tests and exams according to the CAPS guidelines, as well as memorandums and assessments, moderations and marking groups. It is therefore, a private examination setting and support agency.

On this page, you will also find exemplars preparatory previous exam papers and memos for: Gauteng , Limpopo , Western Cape , Eastern Cape , Northern Cape , Kwazulu Natal , Mpumalanga , Free State , and North West Province. Learning material are in Both English and Afrikans where possible (Term 1, Term 2, Term 3, and Term 4).

Requirements to pass Grade 12 | Matric in 2021

Hey, Grade 12 Learner! Do you know what it takes to obtain your Grade 12 Certificate?  All matric students in South Africa are required to register to write at least 7 subjects and they may not fail more than one subject. Failing more than one subject means you have failed matric. Thus, in order to pass you need to meet the following requirements:

• Obtain at least 40% for your Home Language
• Pass two other subjects with 40%, an
• Get 30% for three other subjects

Useful Tip: Manage your time properly. Don’t waste time on questions you are unsure of. Move on and come back if time allows.

Hey,  Grade 12  Learner! Do you know what it takes to obtain your Grade 12 Certificate?  All matric students in South Africa are required to register to write at least 7 subjects and they may not fail more than one subject. Failing more than one subject means you have failed matric. Thus, in order to pass you need to meet the following requirements:

• Pass two other subjects with 40%, and

Useful Tip:  Manage your time properly. Don’t waste time on questions you are unsure of. Move on and come back if time allows List of Life Sciences Grade 12 Past Papers, Memos, and Study Guides for 2021, 2020, 2019 and more

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• Life Sciences Grade 12 All Previous Exam Papers and Memos for All Years All Terms
• Grade 12 Exam Papers and Memos
• 9 September 2022
• 4,050 Views

Find all Life Sciences Grade 12 previous exam question papers and memorandums (memos) for all the years (2022, 2020, 2021, 2020 – 2015) in pdf downloadable format. At My Courses, we have collected almost every paper ever written for Life Sciences Grade 12  per school terms: Term 1 Papers, Term 2, Papers, Term 3 Papers, and Term 4 Papers. The Life Sciences Grade 12 examination papers collection is for NSC and Common Test Papers from National, Western Cape (WC), Kwa-Zulu Natal (KZN), Gauteng (GP), Eastern Cape (EC), Mpumalanga (MP), North West (NW), Limpopo (LP), and Free State (FS).

Previous examination papers help students to practice for the exam using real questions. there is no better way to do a proper revision than using previous question papers. Using Life Sciences Grade 12 previous exam papers on this page, will enable learner to:

• Practice time management skills for the exams
• Discover the syllabus sections which still need more focus and attention
• Discover the most common exam questions for Life Sciences Grade 12 subject (which are usually repeated
• Discover different ways of answering various exam questions

Previous exam papers listed below can also aid Life Sciences Grade 12 teachers to pull out random questions for class tests and assignments. This is a perfect question bank for Life Sciences Grade 12.

2022 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2022 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

Term 1: Feb/March:

Term 2: May/June:

Term 3: August/ September

Term 4: November

2021 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2021 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

2020 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2020 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

2019 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2019 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

2018 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2018 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

2017 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2017 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

2016 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2016 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

2015 Life Sciences Grade 12 Exam Papers and Memos

Below are the 2015 Life Sciences Grade 12 Exam Papers and Memos in pdf format:

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Life Sciences Memorandum - Grade 12 June 2021 Exemplars

PRINCIPLES RELATED TO MARKING LIFE SCIENCES

• If more information than marks allocated is given. Stop marking when maximum mark is reached and put a wavy line and ‘max’ in the right-hand margin.
• If, for example, three reasons are required and five are given. Mark the first three irrespective of whether all or some are correct/ incorrect.
• If whole process is given when only a part of it is required. Read all and credit the relevant part.
• If comparisons are asked for, and descriptions are given. Accept if the differences/similarities are clear.
• If tabulation is required but paragraphs are given. Candidates will lose marks for not tabulating.
• If diagrams are given with annotations when descriptions are required. Candidates will lose marks.
• If flow charts are given instead of descriptions. Candidates will lose marks.
• If sequence is muddled and links do not make sense. Where sequence and links are correct, credit. Where sequence and links are incorrect, do not credit. If sequence and links become correct again, resume credit.
• Non-recognised abbreviations. Accept if first defined in answer. If not defined, do not credit the unrecognised abbreviation, but credit the rest of the answer if correct.
• Wrong numbering. If answer fits into the correct sequence of questions, but the wrong number is given, it is acceptable.
• If language used changes the intended meaning. Do not accept.
• Spelling errors. If recognisable, accept the answer, provided it does not mean something else in Life Sciences or if it is out of context.
• If common names are given in terminology. Accept, provided it was accepted at the national memo discussion meeting.
• If only the letter is asked for, but only the name is given (and vice versa). Do not credit.
• If units are not given in measurements. Candidates will lose marks. Marking guideline will allocate marks for units separately.
• Be sensitive to the sense of an answer, which may be stated in a different way.
• Caption All illustrations (diagrams, graphs, tables, etc.) must have a caption.
• Code-switching of official languages (terms and concepts) A single word or two that appear(s) in any official language other than the learners' assessment language used to the greatest extent in his/her answers should be credited, if it is correct. A marker that is proficient in the relevant official language should be consulted. This is applicable to all official languages.

SECTION A QUESTION 1 1.1 1.1.1 A √√ 1.1.2 D √√ 1.1.3 A √√ 1.1.4 B √√ 1.1.5 C √√ 1.1.6 B √√ 1.1.7 C √√ 1.1.8 C √√ 1.1.9 D √√ (9 x 2) (18) 1.2 1.2.1 Blastocyst √ 1.2.2 Internal √fertilisation 1.2.3 Peptide √bonds 1.2.4 Umbilical vein √ 1.2.5 Gene √ 1.2.6 Grommets √ 1.2.7 Chromatin network √ (7 x 1) (7) 1.3 1.3.1 B only √√ 1.3.2 B only √√ 1.3.3 Both A and B √√ (3 x 2) (6) 1.4 1.4.1

• PpLI √√ (2)
• Ppll √√ (1)

1.4.2 25% √√ (2) 1.5 1.5.1

• A √ – Dendrite √(2)
• D √ – Synapse √ (2)
• E √ – Interneuron √/Connector neuron (2)
• Prostate gland √ (1)
• Epididymis √ (1)
• G √ – urethra √ (2)
• E √ – testis √ (2)

TOTAL SECTION A: 50

SECTION B QUESTION 2 2.1 2.1.1

• Nuclear membrane √/(nucleus) (1)
• Carries the coded message from DNA √ in the nucleus to the ribosomes for protein synthesis (1)

2.1.3 Translation √*

• The anticodon on the tRNA/molecule Z matches the codon on the mRNA √
• tRNA brings the required amino acid √
• to the ribosome √/structure F
• Amino acids are joined by peptide bonds √
• to form the required protein √ (*1 compulsory + 5) (6)
• Adenine √ (1)
• UUU-CAU-GAC-GCG √√ (correct sequence) (2)

2.2.1 Prophase I √ (1) 2.2.2

• Crossing over √*
• Chromosomes pair up √/ homologous chromosomes / bivalents form
• Chromosomes overlap √/cross over
• at points called chiasmata √
• Exchange of genetic material occurs between chromatids √ /adjacent chromosome pairs (*1 compulsory + 4)  (5)
• Brings about variation √ in the gametes
• by ensuring that no two gametes are the same √(2)

2.3 2.3.1 Pedigree diagram √/ Genetic lineage (1) 2.3.2

• X H X h √ (1)
• X h Y √ (1)
• The ciliary muscles relax √
• Suspensory ligaments become taut √/ stretched
• and the lens becomes less convex √/ flatter
• decreasing the refractive power of the lens √
• maintaining a clear image  (4) 
• Corpus luteum √ (1)
• Ovulation √ (1)

2.5.2 Oestrogen √(1) 2.5.3

• FSH will not be released √therefore
• no follicles will develop √in the ovaries
• LH will not be released √therefore
• no ovulation √will occur
• The female will be infertile √/ cannot have babies (Any 4) (4)
• It continues secreting progesterone √
• To further increase the thickness of the endometrium√
• For possible implantation √ (3)

QUESTION 3 3.1 3.1.1

• 2 – Semi-circular canals √
• 3 – Auditory nerve √ (2)
• 5 – Equalises pressure on either side of the tympanic membrane √
• 6 – Transmits vibrations (sound waves) to the ossicles (middle ear) √ (2)
• A change in the position of the head
• stimulates the maculae √
• in the utriculus and sacculus √
• to convert the stimulus into an impulse √
• The impulse is sent to the cerebellum √
• through the auditory nerve √
• The cerebellum sends impulses to the skeletal muscles √
• to restore balance √ (Any 5) (5)
• Vibrations are not transmitted to the inner ear √
• Pressure waves not generated in cochlea √
• Organ of Corti is not stimulated √
• No impulse is transmitted to cerebrum √
• resulting in impaired hearing √ (Any 3) (3)
• Its larvae eat the contents of maize stems √
• this weakens the stems causing the plants to collapse √ (2)
• The spray may not reach all the larvae √ as
• they develop inside the stem √ and therefore
• are shielded from the spray √ (3)
• Type of treatment √/ protection (1)
• Number of maize plants collapsed √ (1)
• As a control √
• for comparison of results √ with and without treatment (2)

3.2.5 Average number of plants collapsed

• Plot B = 0+0+22+0+1+11+2+0+1+6+13+17 √                                      12 = 6,08 √/ 6,1/ 6 Plot C = 1+0+21+0+0+12+1+1+0+0+1+0 √                                12 = 3,08 √/3,1/3

(4) 3.2.6 Using genetically modified Bt corn is more effective √ in protecting the maize against the corn borer moth than spraying the corn with Bt toxin √ (2) 3.2.7

• Long period of investigation √/ 12 weeks
• Large sample used √/ Several hundreds of seedlings used (2)

3.2.8 Different scientists used for counting √/ each scientist may have counted differently from the other (1) 3.3 3.3.1

• For the body to be able to react to stimuli √
• To co-ordinate the various activities of the body √ (2)
• E √ – corpus callosum √ (2)
• C √ – spinal cord √ (2)
• The medulla oblongata regulates vital life processes √ like breathing rate √/heart rate (2)
• The right cerebral cortex controls the left-hand side of the body √  A blood clot in the right cerebral cortex will inhibit voluntary action on the left-hand side of the body √  (2)
• Placenta √(1)
• Umbilical cord √ (1)
• It provides the fluid medium for free movement of fetus √
• It acts as a shock absorber
• It protects the fetus against dehydration √
• It protects the fetus against temperature changes√ Promotes lung development √
• Holds waste √ (Mark first ONE only) (Any 1) (1)

3.4.3 Respiratory √/Gaseous exchange system Digestive √system Excretory √ system (Mark first TWO only) (Any 2) (2) 3.4.4 

(Mark first ONE only) 1 for table + Any (1 x 2 ) (3) 3.4.5

• High levels of progesterone √
• inhibit the secretion of FSH√  (2)

TOTAL SECTION B: 100 GRAND TOTAL: 150

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