B8 syllabus statements

08/09/13
B8 ReproductionB8 Reproduction
Syllabus statementsSyllabus statements

8.1 Asexual and sexual8.1 Asexual and sexual
reproductionreproduction
1. Define asexual reproduction as the process
resulting in the production of genetically identical
offspring from one parent.
3. Define sexual reproduction as the process
involving the fusion of haploid nuclei to form a
diploid zygote and the production of genetically
dissimilar offspring.

8.1 Asexual and sexual8.1 Asexual and sexual
reproductionreproduction
2. Discuss the advantages and disadvantages to a
species of asexual reproduction.
4. Discuss the advantages and disadvantages to a
species of sexual reproduction.

8.2 Sexual reproduction in plants8.2 Sexual reproduction in plants
1. Identify and draw, using a hand lens if
necessary, the sepals, petals, stamens, anthers,
carpels, ovaries and stigmas of one, locally
available, named, insect-pollinated, dicotyledonous
flower, and examine the pollen grains under a
light microscope or in photomicrographs.
2. Use a hand lens to identify and describe the
anthers and stigmas of one, locally available,
named, wind-pollinated flower.

3. State the functions of the sepals, petals,
anthers, stigmas and ovaries.
4. Candidates should expect to apply their
understanding of the flowers they have studied
to unfamiliar flowers.

5. Define pollination as the transfer of pollen
grains from the male part of the plant (anther of
stamen) to the female part of the plant (stigma).
6. Name the agents of pollination.
7. Compare the different structural adaptations
of insect-pollinated and wind-pollinated flowers.

9. Investigate and describe the structure of a
non-endospermic seed in terms of the embryo
(radicle, plumule and cotyledons) and testa,
protected by the fruit.
10. State that seed and fruit dispersal by wind
and by animals provides a means of colonising new
areas.
11. Describe, using named examples, seed and
fruit dispersal by wind and by animals.

8.3 Sexual reproduction in humans8.3 Sexual reproduction in humans
1. Identify on diagrams of the male reproductive
system, the testes, scrotum, sperm ducts,
prostate gland, urethra and penis, and state the
functions of these parts.
3. Identify on diagrams of the female
reproductive system, the ovaries, oviducts,
uterus, cervix and vagina, and state the functions
of these parts.

4. Describe the menstrual cycle in terms of
changes in the uterus and ovaries.

2. Compare male and female gametes in terms of
size, numbers and mobility
5. Describe fertilisation in terms of the joining of
the nuclei of male gamete (sperm) and the female
gamete (egg).
6. Outline 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.

7. Indicate the functions of the amniotic sac and
amniotic fluid.
8. 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).
9. Describe the advantages and disadvantages of
breast-feeding compared with bottle-feeding
using formula milk.

10 Describe the methods of transmission of
human immunodeficiency virus (HIV), and the
ways in which HIV/AIDS can be prevented from
spreading.
11. Outline how HIV affects the immune system in
a person with HIV/AIDS.

B8 syllabus statements

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B8 syllabus statements