Form 4 BiologyBiologi Tingkatan 4

Chapter 15: ReproductionBab 15: Pembiakan

Sexual reproduction, development, and growth in humansPembiakan seksual, perkembangan, dan pertumbuhan manusia

🎯 What You'll LearnApa yang Anda Akan Pelajari

Describe male and female reproductive systemsMenerangkan sistem pembiakan lelaki dan perempuan

Explain gamete formation (spermatogenesis & oogenesis)Menerangkan pembentukan gamet (spermatogenesis dan oogenesis)

Describe the menstrual cycle and hormonal controlMenerangkan kitar akid dan kawalan hormon

Explain fertilisation and placenta functionsMenerangkan persenyawaan dan fungsi uri

🧬 Menstrual CycleKitar Akid

PhaseFasaDaysHariEventsPeristiwa
MenstruationAkid1-5Uterus lining shedsLapisan rahim gugur
FollicularFolikular6-13FSH stimulates follicle, oestrogen risesFSH rangsang folikel, estrogen meningkat
OvulationOvulasi14LH surge, egg releasedLonjakan LH, ovum dibebaskan
LutealLuteal15-28Corpus luteum, progesterone risesJasad kuning, progesteron meningkat
💡 Memory Trick:💡 Trik Ingatan: "FSH = Follicle Stimulating" | "LH = Lets Happen (ovulation)" | "14th day = Ovulation""FSH = Folikel Stimulasi" | "LH = Lepas (ovulasi)" | "Hari ke-14 = Ovulasi"

🤰 Placenta FunctionsFungsi Uri

FunctionFungsiDescriptionPenerangan
Nutrient transferPemindahan nutrienGlucose, amino acids to foetusGlukosa, asid amino ke fetus
Gas exchangePertukaran gasO₂ to foetus, CO₂ to motherO₂ ke fetus, CO₂ ke ibu
Waste removalPenyingkiran sisaUrea, CO₂ removedUrea, CO₂ disingkirkan
Antibody transferPemindahan antibodiPassive immunity to babyImuniti pasif kepada bayi
Human Reproduction & Menstrual Cycle Male Reproductive System Testes → Sperm production (spermatogenesis) Epididymis → Sperm storage Prostate gland → Seminal fluid Penis → Delivery Female Reproductive System Ovary → Ovum production (oogenesis) Fallopian tube → Fertilization site Uterus → Implantation & development Vagina → Birth canal Menstrual Cycle (28 days) Day 1-5 Menstruation Day 6-13 Follicle matures (FSH) Day 14 OVULATION (LH) Day 15-22 Corpus luteum (Progest.) Day 23-28 If no fertilization SPM: FSH → estrogen → LH → progesterone — know the hormone cycle!

Quick CheckSemakan Cepat

Where does fertilisation occur?Di manakah persenyawaan berlaku?

AUterusRahim
BFallopian tubeTiub fallopio
COvaryOvari
DCervixServiks

🇲🇾 Malaysian ContextKonteks Malaysia

Teen pregnancy is a rising concern. Government clinics provide free family planning and antenatal care. Ministry of Health promotes breastfeeding for infant health.Kehamilan remaja masalah membimbangkan. Klinik kerajaan menyediakan perancangan keluarga dan penjagaan antenatal percuma. Kementerian Kesihatan menggalakkan penyusuan ibu untuk kesihatan bayi.

📋 SPM Practice📋 Latihan SPM

SPM QuestionSoalan SPM

Explain the roles of hormones in the menstrual cycle. [6 marks]Jelaskan peranan hormon dalam kitar haid. [6 markah]

📌 Exam Tip:📌 Tips Peperiksaan: FSH → follicle development → Oestrogen → repairs uterus lining, inhibits FSH → LH → ovulation → Progesterone → maintains lining, inhibits FSH & LHFSH → perkembangan folikel → Estrogen → membaiki lapisan rahim, perencat FSH → LH → ovulasi → Progesteron → mengekalkan lapisan, perencat FSH & LH

🃏 FlashcardsKad Imbas

FSH function?Fungsi FSH?
Stimulates follicle developmentMerangsang perkembangan folikel
Ovulation day?Hari ovulasi?
Day 14Hari ke-14
Fertilisation site?Tapak persenyawaan?
Fallopian tubeTiub fallopio
Progesterone source?Sumber progesteron?
Corpus luteumJasad kuning
Placenta function?Fungsi uri?
Nutrient & gas exchangePemindahan nutrien & pertukaran gas