| A.S. |
Obj. |
9.1 Production of Gametes (3h) |
| 9.1.1 |
1 |
- Draw the structure of testis tissue as seen using
a light microscope.
- Light microscopes show the
presence of seminiferous tubules with blood
capillaries and interstitial cells. Draw one
seminiferous tubule in transverse section (TS)
with adjacent intersitial cells. The sectioned
tubules have an outer germ cell layer with
basement membrane, developing spermatozoa and the
Sertoli cells that provide nourishment.
|
| 9.1.2 |
2 |
- Outline the processes involved in spermatogenesis
including mitosis, cell growth, the two divisions
of meiosis and cell differentiation.
- Cross reference with 1.5 and 8.1.
The names of the intermediate stages are not
required.
|
| 9.1.3 |
2 |
- Outline the origin and the role of the hormones
FSH, testosterone and LH in spermatogenesis.
- The name ICSH will not be used.
|
| 9.1.4 |
1 |
- Draw the structure of the ovary as seen using a
light microscope.
- Developing oocytes can be seen.
The stages of developing Graafian follicles are
visible. The primary oocytes are surrounded by
the zona pellucida.
|
| 9.1.5 |
2 |
- Outline the processes involved in
oogenesis including mitosis, cell growth, the two
divisions of meiosis, the unequal division of
cytoplasm and the degeneration of polar bodies.
- Cross reference with 1.5 and 8.1.
Names of the stages are not required.
|
| 9.1.6 |
1 |
Draw the structure of a mature sperm
and egg. |
| 9.1.7 |
2 |
Outline the role of the epididymis, seminal vesicle
and prostate gland in the production of semen. |
| 9.1.8 |
2 |
Outline the processes of
spermatogenesis and oogenesis including the number of
gametes and the timing of the formation and release of
gametes. |
| |
|
9.2 Fertilization and
Pregnancy (2h) |
| 9.2.1 |
2 |
Describe the process of fertilization
including the acrosome reaction, penetration of the egg
membrane by a sperm and the cortical reaction. |
| 9.2.2 |
2 |
Outline the role of human chorionic
gonadotrophin (HCG) in early pregnancy. |
| 9.2.3 |
2 |
- Describe the structure and functions of the
placenta including its hormonal role in the
maintenance of pregnancy (secretion of estrogen
and progesterone.)
- Details of the embryological
development of humans, formation and evolutionary
origins of the extra-embryonic membranes and
hormonal control of lactation are not required.
Prolactin in connection with 5.7/9 and 5.7.10
might also be discussed here.
|