photosynthesis = fotosintesis
Plants do not move to find food; they make their own through a process called photosynthesis (fotosintesis). This unit covers what it needs, what it produces and why it matters to all living things.
Example: leaves make food in sunlight.
Watch out: photosynthesis happens mainly in the leaves.
Kenali
Keperluan fotosintesis
Fotosintesis memerlukan empat perkara:
cahaya matahari · klorofil
karbon dioksida · air
Contoh: Klorofil ialah bahan hijau di dalam daun yang menyerap cahaya matahari.
what it needs = keperluan
Photosynthesis needs four things: sunlight (cahaya matahari), chlorophyll (klorofil), carbon dioxide (karbon dioksida) and water (air). Chlorophyll is the green substance in leaves that absorbs sunlight.
Example: leaves are green because they contain chlorophyll.
Watch out: oxygen is not a need; it is a product.
Fahami
Hasil fotosintesis
Fotosintesis menghasilkan glukosa dan oksigen. Glukosa yang berlebihan ditukarkan kepada kanji dan disimpan di batang, akar, buah atau biji.
Contoh: karbon dioksida + air → glukosa + oksigen (dengan cahaya matahari dan klorofil)
products = hasil
Photosynthesis produces glucose (glukosa) and oxygen (oksigen). Extra glucose is changed into starch (kanji) and stored in stems, roots, fruits or seeds. Word equation: carbon dioxide + water → glucose + oxygen (with sunlight and chlorophyll).
Example: tapioca and sweet potato roots store a lot of starch.
Watch out: "+" means "and", "→" means "becomes".
Pilih semua
Pilih semua keperluan fotosintesis.
找条件 = cari keperluan
条件是放进去的东西，产物是做出来的东西。氧气和葡萄糖是做出来的。这题有几个答案（叶绿素在叶子里，这里没有列出）。
例子：没有阳光，植物就不能制造食物。
注意：条件和产物最容易混淆。
finding the needs = cari keperluan
Needs go in; products come out. Oxygen and glucose come out. There are several answers (chlorophyll is in the leaf and not listed here).
Example: without sunlight, plants cannot make food.
Watch out: needs and products are easily confused.
Semak kefahaman
Glukosa yang berlebihan disimpan dalam bentuk apa?
储存形式 = bentuk simpanan
植物用不完的葡萄糖会变成另一种物质储存起来，马铃薯和米饭里就有很多。
例子：米和马铃薯富含淀粉。
注意：氧气会排到空气中，不会储存。
stored form = bentuk simpanan
Glucose the plant does not use is changed into another substance and stored; potatoes and rice are full of it.
Example: rice and potatoes are rich in starch.
Watch out: oxygen goes out into the air; it is not stored.
Fahami
Kepentingan fotosintesis
Fotosintesis membekalkan makanan kepada manusia dan haiwan, membekalkan oksigen untuk bernafas, dan mengekalkan keseimbangan udara.
Contoh: Kita makan sayur, buah dan nasi yang dihasilkan oleh tumbuhan melalui fotosintesis.
why it matters = kepentingan
Photosynthesis gives food to people and animals, provides oxygen for breathing and takes in carbon dioxide, keeping the air balanced (keseimbangan udara).
Example: the vegetables, fruits and rice we eat come from photosynthesis.
Watch out: cutting down too many trees increases carbon dioxide in the air.
Fikir
Sebatang pokok diletakkan di dalam kotak gelap selama seminggu. Apakah yang akan berlaku?
暗箱里的植物 = pokok dalam kotak gelap
暗箱里没有哪一样光合作用需要的东西？少了它，植物还能制造食物吗？
例子：放在暗房的植物叶子会变黄。
注意：没有光就谈不上吸收更多光。
a plant in a dark box = pokok dalam kotak gelap
Which need for photosynthesis is missing in a dark box? Without it, can the plant still make food?
Example: a plant kept in a dark room turns yellow.
Watch out: without light it cannot absorb more light.
Ringkasan
Syabas!
Fotosintesis
Tumbuhan membuat makanan sendiri melalui fotosintesis: karbon dioksida + air → glukosa + oksigen, dengan cahaya matahari dan klorofil. Glukosa berlebihan disimpan sebagai kanji.
