Which structure of the amniotic egg of a reptile or bird encloses the embryo in fluid and so protects it against drying out and mechanical shock?
← Matric subjects
Matric Life Sciences
2 papers300 marks5 h
What we predict comes up
From the syllabus weighting and how the papers are usually set. The papers below follow it.
- Evolution17%About 50 marks on Paper 2: natural selection, speciation and human evolution with its South African fossil sites.
- Responding to the environment (humans)15%The largest Paper 1 topic, about 45 marks: the reflex arc, the eye, the ear and investigations of reaction time.
- Endocrine system and homeostasis15%About 40 marks together on Paper 1: glucose, thyroxine, temperature, water and salt balance by negative feedback.
- Genetics and inheritance15%About 45 to 50 marks on Paper 2: monohybrid and dihybrid crosses, blood groups, sex linkage, pedigrees and genetic engineering.
Paper 1
2 h 30 min · 150 marks · Calculator allowed
- Answer ALL the questions.
- Write ALL the answers in the ANSWER BOOK.
- Start the answers to EACH question at the top of a NEW page.
- Number the answers correctly according to the numbering system used in this question paper.
- Present your answers according to the instructions of each question.
- Do ALL drawings in pencil and label them in blue or black ink.
- Draw diagrams, tables or flow charts only when asked to do so.
- Structures that a printed paper would show in a diagram are described in words in this practice paper.
- Write neatly and legibly.
Answer or mark a question and your score adds up here.
Section A50 marks
Question 1.1: various options are provided as possible answers to the following questions. Choose the answer. Questions 1.2 to 1.5: answer each question as instructed.
Which hormone, secreted by the pituitary gland, causes a mature Graafian follicle to release an ovum?
Which ONE of the following shows the correct route taken by sperm from where they are formed until they leave the body?
14 more questions
Every paper, every question, the answers and the mark scheme. Free with a Knomi account.
Not included: Printed biological diagrams (the eye, ear, brain, chromosomes, fossil skulls) are described in words or replaced with tables and graphs, and the practical investigations of school-based assessment are not part of the written papers.