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discussion 4.7 plant reproduction (nilam workbook)

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Published by masitahabdulrahman5184, 2021-07-01 23:14:02

discussion 4.7 plant reproduction (nilam workbook)

discussion 4.7 plant reproduction (nilam workbook)

SAINS TINGKATAN 1

Projek 4.1 Pemeriksaan Kesihatan dan Rawatan Masalah Sistem Pembiakan
Project Medical Check Up and Treatment on Reproductive System's Problems

Arahan Secara berkumpulan, sediakan satu persembahan multimedia dengan memasukkan gambar-gambar
serta penerangan. Persembahan multimedia anda harus merangkumi:

Instruction In group, prepare multimedia presentation by including pictures and descriptions. Your multimedia
presentation should include:

• Kepentingan mengamalkan pemeriksaan kesihatan / The importance of medical check up
• Masalah-masalah berkaitan sistem pembiakan / Problems related to reproductive system
• Cara mengatasi masalah-masalah berkaitan / Ways to solve the related problems

Refleksi Murid Sila tandakan (3) Faham / Understand (  ) Kurang faham / Less understand (  ) Tidak faham / Do not understand (  )
Students' Please tick (3)
Reflection

4.7 Pembiakan Tumbuhan
Plant Reproduction

K.Kejayaan / S.Criteria

4.7.1 Berkomunikasi mengenai struktur dan fungsi setiap bahagian bunga.
Communicate about the structure and function of each part of a flower.

SP 4.7.2 Mewajarkan proses pendebungaan. / Justify the pollination process.
LS
4.7.3 Memerihalkan proses persenyawaan dan menerangkan pembentukan biji benih dan buah pada tumbuhan.
Describe the process of fertilisation and explain the formation of seeds and fruits in plants.

4.7.4 Memerihalkan proses percambahan biji benih. / Describe the germination process of a seed.

Bab 4.7.5 Menyelesaikan masalah apabila percambahan tidak berlaku. / Solve problems if germination does not occur.
Chapter
EMK Sains dan teknologi / Science and technology

4 Nilai Murni Minat dan sifat ingin tahu tentang alam sekitar
Moral Value Interest and curiosity about the environment

Aktiviti 4.1 Struktur dan Fungsi Setiap Bahagian Bunga
Activity The Structure and Function of Each Part of the Flower

TUJUAN Untuk mengkaji dan mengenal pasti struktur bunga
AIM To analyse and identify the structure of a flower

RADAS DAN BAHAN Bunga raya, carta struktur bunga
APPARATUS AND A hibiscus flower, a chart of structures of flowers
MATERIAL

PROSEDUR 1 Perhatikan sekuntum bunga raya. / Observe a hibiscus flower.
PROCEDURE 2 Bandingkan struktur bunga raya dengan carta struktur bunga.
Compare the structure of the hibiscus flower with a chart of structures of flower.
3 Lukiskan bunga raya dan label setiap bahagian bunga tersebut dalam ruang yang diberikan.
Draw the hibiscus flower and label each part of the flower in the space provided.

PEMERHATIAN Filamen Stigma
OBSERVATION Filament Stigma
Anter
Stamen Anther Stil
Stamen Ranggi Style
Ovari
Petal Ovary Pistil
Sepal Ovul Pistil
Sepal Ovule

© Nilam Publication Sdn. Bhd. 86

SAINS TINGKATAN 1

Filamen Anter
Filament Anther

Ranggi Stigma
Petal Stigma

Ovul Ovari Stil
Ovule Ovary Style

PERBINCANGAN (a) Bunga merupakan organ pembiakan tumbuhan.
DISCUSSION
Flower is a reproductive organ of a plant. TP1

(b) Padankan bahagian-bahagian bunga dengan peranan masing-masing.
Match the parts of flower with their respective roles. TP2

Sepal Memegang dan menghubungkan Bab
Sepal stigma ke ovari Chapter
Holds and connects the stigma to ovary
Ranggi 4
Petals Melindungi bunga pada peringkat
kudup
Pistil Stil Protects the flower at budding stage
Pistil Style
Stigma Menerima dan memerangkap
Stigma debunga
Receives and traps the pollen
Ovari Menghasilkan debunga
Ovary Produces pollen

Stamen Ovul Menarik serangga dan haiwan untuk
Stamen Ovule mendebungakan bunga dengan
Filamen warnanya yang terang dan berbau
Filament harum
Anter Attract insects and animals to pollinate
Anther the flower with their bright colours and
aromatic fragrance

Menghasilkan gamet betina
Produces female gametes
Memegang anter
Holds the anther
Menghasilkan dan melindungi ovul
Produces and protects the ovule

87 © Nilam Publication Sdn. Bhd.

SAINS TINGKATAN 1

Proses Pendebungaan Rujuk buku teks muka surat 121
Process of Pollination Refer textbook page 121

1 Terdapat 2 jenis bunga / There are 2 types of flowers : Bunga biseks / Bisexual flower
Stigma
Bunga unisex / Unisexual flower
Stigma
Stamen / Stamen Stigma / Stigma

Stamen
Stamen

Bunga jantan / Male flower Bunga betina / Female flower

Bahagian pembiakan jantan dan betina pada bunga Bahagian pembiakan jantan dan betina pada bunga

yang berlainan . / Male and female yang sama . / Male and female

reproductive part on the different flower. reproductive part on the same flower.

Contoh / Example : Contoh / Example :
Bunga betik / Papaya flower Bunga raya / Hibiscus flower

Bab 2 Pendebungaan ialah pemindahan debunga matang dari anter ke stigma.
Chapter
4 Pollination is the transfer of matured pollen grains from anther to stigma.

3 Terdapat 2 jenis pendebungaan / There are 2 types of pollination :

Pendebungaan kacuk Pendebungaan sendiri
Cross pollination Self pollination

Debunga Debunga Debunga
Pollen grain Pollen Pollen
grain grain

Debunga dipindahkan dari anter sebatang pokok Debunga dipindahkan dari anter ke stigma (dari
ke stigma satu pokok yang berlainan yang
bunga yang sama atau bunga yang lain) pada pokok

sama spesies. yang sama . / Pollen is transferred from

Pollen is transferred from anther to stigma of the anther to stigma (from the same flower or other

different trees of the same species. flower) on the same tree.

Stamen dan stigma matang pada masa yang Stamen dan stigma matang pada masa yang
sama jika satu bunga terlibat.
sama atau berlainan .
Stamen and stigma mature at the same
Stamen and stigma mature at the same or
time if one flower is involved.
different times.

© Nilam Publication Sdn. Bhd. 88

SAINS TINGKATAN 1

4 Debunga boleh dipindahkan dari anter ke stigma melalui agen pendebungaan. Namakan agen pendebungaan
tersebut. / Pollen can be transferred from anther to stigma by pollinating agents. Name the pollinating agents.

Serangga Haiwan Angin Air
Insect Animal Wind Water

5 Nyatakan ciri-ciri dan contoh bunga yang didebungakan oleh haiwan, serangga dan angin.
State the characteristics and examples of flower pollinated by animals, insects and wind.

• Haiwan / Animals Agen pendebungaan • Angin / Wind Bab
• Serangga / Insects Pollinating agent Pucat Chapter
Warna ranggi Pale
Terang dan berwarna-warni Petal colours 4
Bright and colourful Kecil / Small
Besar / Big Saiz bunga / Flower size Tiada bau / No scent
Wangi / Fragrant Bau / Scent
Ada / Present Tiada / Absent
Pendek / Short Nektar / Nectar Panjang / Long
Pendek / Short Filamen / Filament Panjang / Long
Besar dan berbulu / Big and hairy
Leper dan melekit / Flat and sticky Stil / Style
Kecil / Small Stigma / Stigma Besar / Big
Anter / Anther
Sedikit / Less Kuantiti debunga Banyak / Many
Quantity of pollen Kecil, ringan dan permukaan licin
Kasar dan permukaan berduri Ciri-ciri debunga
Rough and spiky surface Characteristics of pollen Small, light and smooth surface
Contoh tumbuhan • Jagung / Corn
• Durian / Durian Examples of plants • Rumput / Grass
• Bunga matahari / Sunflower

89 © Nilam Publication Sdn. Bhd.

SAINS TINGKATAN 1

6 Antara berikut, yang manakah adalah betul tentang kelebihan pendebungaan kacuk? Nyatakan Benar atau Palsu.
Which of the following are correct concerning the advantages of cross-pollination? State True or False. TP5

Kelebihan pendebungaan kacuk Benar / Palsu
Advantages of cross-pollination True / False

Pendebungaan kacuk menghasilkan zuriat yang pelbagai. Benar / True
Cross-pollination produces varieties of offsprings.

Bunga yang dihasilkan dalam pendebungaan kacuk adalah sama dengan tumbuhan Palsu / False
induk. / Flowers produced in cross-pollination are similar with the parent. Benar / True
Zuriat yang dihasilkan dalam pendebungaan kacuk mempunyai rintangan yang Benar / True
lebih tinggi terhadap penyakit.
Offspring produced in cross-pollination has higher resistance to diseases.
Zuriat yang dihasilkan dalam pendebungaan kacuk mempunyai kualiti buah dan
benih yang lebih baik.
Offspring produced in cross-pollination has better quality of fruit and seed.

Pendebungaan kacuk mempercepatkan proses persenyawaan. Palsu / False
Cross-pollination fastens the process of fertilisation.

Bab
Chapter
Aplikasi pendebungaan kacuk dalam bidang pertanian.

4 The uses of cross-pollination in agriculture.

Meningkatkan Untuk mendapatkan
hasil tanaman tanaman yang lebih

Increase berkualiti
To obtain better
yields of crops
quality
Untuk mendapatkan Aplikasi crops
tanaman yang tahan terhadap pendebungaan
Mendapatkan
haiwan perosak dan kacuk tanaman yang lebih
penyakit Uses of cross-
pollination cepat matang
To obtain crops that are To obtain crops that
90
resistant to pests mature earlier

and diseases

© Nilam Publication Sdn. Bhd.

Proses Persenyawaan SAINS TINGKATAN 1
Fertilisation Process Rujuk buku teks muka surat 126

1 Isi tempat kosong bagi proses yang terlibat dalam persenyawaan. Refer textbook page 126
Fill in the blanks for processes involved in fertilisation.
Tiub debunga
1 Pendebungaan Debunga 2 Tiub debunga Pollen tube
berlaku. Pollen grain yang mengandungi
Pollination gamet jantan Gamet jantan
tumbuh ke arah Male gamete
occurs. ovary.
Pollen tube

carrying male
gamete grows
towards the ovary.

Ovari Ovul Bab
Ovary Ovule Chapter

Persenyawaan Tumbuhan Gamet 4
Fertilisation in Plants betina
Female 3 Tiub debunga 4 Persenyawaan
https://goo.gl/U7ELHc gamete menembusi ovul. berlaku dan zigot
Pollen tube terbentuk.
penetrates the Fertilisation occurs
ovule.
and zygote forms.

2 Selepas pendebungaan, persenyawaan berlaku. / After pollination, fertilisation occurs.
ovul .
3 Gamet jantan dalam tiub debunga bercantum dengan gamet betina dalam
.
Male gamete in the pollen fuses with the female gamete in the ovule

4 Berikut merupakan bahagian-bahagian pada sekuntum bunga. Padankan dengan perkembangan selepas
persenyawaan berlaku. / The following are parts of a flower. Match with their development after fertilisation occurs.

Ovum / Ovum Zigot / Zygote

Ovul / Ovule Buah / Fruit

Ovari / Ovary Gugur / Drop

Stil dan stigma / Style and stigma Biji benih / Seed

Filamen dan anter / Filament and anther Gugur / Drop

91 © Nilam Publication Sdn. Bhd.

SAINS TINGKATAN 1 Rujuk buku teks muka surat 127
Refer textbook page 127
Struktur dan Fungsi Biji Benih
Structure and Functions of a Seed
1 Biji benih boleh dibahagikan kepada dua jenis:
Seeds can be divided into two types:

Biji benih dikotiledon Biji benih monokotiledon
Dicotyledons seed
2 Label struktur-struktur biji benih berikut. Monocotyledon seed
Label the structures of the following seeds.

Bab Hilum Testa
Chapter Hilum Testa

4 Plumul
Plumule
Testa Kotiledon
Testa Cotyledon Radikel
Radicle
Mikropil
Micropyle

Pandangan hadapan (biji benih dikotiledon) Keratan memanjang (biji benih dikotiledon)
Front view (dicotyledon seed) Longitudinal section (dicotyledon seed)

Testa Testa / Testa
Testa Endosperma / Endosperm
Plumul / Plumule
Radikel Kotiledon / Cotyledon
Radicle Radikel / Radicle
Pandangan hadapan (biji benih monokotiledon)
Front view (monocotyledon seed) Keratan memanjang (biji benih monokotiledon)
Longitudinal section (monocotyledon seed)

© Nilam Publication Sdn. Bhd. 92

SAINS TINGKATAN 1

3 Padankan struktur pada bahagian bijih benih berikut dengan peranan masing-masing.
Match the following structure on parts of seed with their respective role.

Bahagian kulit biji Peranan
Seed skin part Role

Testa Tempat kemasukan air dan udara
Testa Entry point of water and air
Hilum Parut pelekatan pada dinding buah
Hilum Scar of attachment to the fruit wall
Mikropil Melindungi biji benih
Micropyle Protects the seed

Bahagian embrio Peranan Bab
Embryo part Role Chapter

Plumul Berkembang menjadi pucuk 4
Plumule Grows into a shoot

Radikel Membekalkan makanan untuk embrio yang
Radicle sedang tumbuh sebelum fotosintesis
Supply food for the growing embryo before it
Kotiledon starts photosynthesis
Cotyledons
Berkembang menjadi akar
Grows into a root

Percambahan Biji Benih Rujuk buku teks muka surat 128
Germination of Seeds Refer textbook page 128
1 Terdapat 2 jenis percambahan biji benih. / There are 2 types of seed germination.
Kotiledon
Kotiledon Cotyledon
Cotyledon

Percambahan epigeal. Percambahan hipogeal .
Epigeal germination Hypogeal germination

Kotiledon dibawa keluar dari tanah semasa Kotiledon tinggal dalam tanah semasa

percambahan. / Cotyledon is carried outside of percambahan. / Cotyledon remains inside the

the soil during germination. soil during germination

93 © Nilam Publication Sdn. Bhd.


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