THE SLIDE SHOW FOR PLANT REPRODUCTION CAN BE DOWNLOADED HERE!
YOU NEED TO KNOW HOW TO:
Define sexual reproduction as the process involving the fusion of haploid nuclei to form a diploid zygote and the production of genetically dissimilar offspring.
Identify and draw, using a hand lens if necessary, the sepals, petals, stamens and carpels of one, locally available, named, insect-pollinated, dicotyledonous flower, and examine the pollen grains under a light microscope.
State the functions of the sepals, petals, anthers and carpels;
Use a hands lens to identify and describe the anthers and stigmas of one, locally available, named, wind-pollinated flower, and examine the pollen grains under a light microscope;
Outline the process of pollination and distinguish between self-pollination and cross-pollination;
Compare, using fresh specimens, an insect-pollinated and a wind-pollinated flower;
Describe the growth of the pollen tube and its entry into the ovule followed by fertilisation (production of endosperm and details of development are not required);
Investigate and describe the structure of a non-endospermic seed in terms of the embryo (radicle, plumule and cotyledons) and testa, protected by the pericarp (fruit wall);
State that seed and fruit dispersal by wind and by animals provides a means of colonising new areas;
Describe the external features of one, locally available, named example of a wind-dispersed fruit or seed and of one named example of an animal-dispersed fruit or seed;
Investigate and state the environmental conditions that affect germination of seeds: suitable temperature, water and oxygen;
Describe the uses of enzymes in the germination of seeds;
THE SLIDE SHOW FOR HUMAN REPRODUCTION CAN BE DOWNLOADED HERE!
YOU NEED TO KNOW HOW TO:
Define mitosis as cell division giving rise to genetically identical cells in which the chromosome number is maintained and state the role of mitosis in growth, repair of damaged tissues, replacement of worn out cells and asexual reproduction;
Define asexual reproduction as the process resulting in the production of genetically identical offspring from one parent and describe one named, commercially important application of asexual reproduction in plants;
Define meiosis as a reduction division in which the chromosome number is halved from diploid to haploid;
State that gametes are the result of meiosis (reduction division);
Define sexual reproduction as the process involving the fusion of haploid nuclei to form a diploid zygote and the production of genetically dissimilar offspring;
Identify on diagrams of the male reproductive system and give the functions of the testes, scrotum, sperm ducts, prostate gland, urethra and penis;
Identify on diagrams of the female reproductive system and give the functions of the ovaries, oviducts, uterus, cervix and vagina;
Compare male and female gametes in terms of size, numbers and mobility;
Describe the menstrual cycle, with reference to the alternation of menstruation and ovulation, the natural variation in its length and the fertile and infertile phases of the cycle;
Explain the role of hormones in controlling the menstrual cycle (including FSH, LH, progesterone and oestrogen);
Describe fertilisation and early development of the zygote simply in terms of the formation of a ball of cells that becomes implanted in the wall of the uterus;
State the function of the amniotic sac and the amniotic fluid;
Describe the function of the placenta and umbilical cord in relation to exchange of dissolved nutrients, gases and excretory products (no structural details are required);
Describe the special dietary needs of pregnant women;
Describe the advantages of breast milk compared with bottle milk;
Describe the following methods of birth control: natural, chemical (spermicides), mechanical, hormonal and surgical;
Explain that syphilis is caused by a bacterium that is transmitted during sexual intercourse;
Describe the symptoms, signs, effects and treatment of syphilis;
Discuss the spread of human immunodeficiency virus (HIV) and methods by which it may be controlled.
