Page 26 - PWR UP TG2 SAINS

Sains Tingkatan 2 Bab 2

3. Rajah di bawah menunjukkan organisma yang terdapat di kawasan sawah padi.
The diagram below shows the organisms found in a paddy field. SP 2.1.2 TP4 KBAT Menganalisis Modul HEBAT 1
Helang/Eagle
Helang/Eagle
Pokok padi/Paddy plant
Burung pipit/Sparrow

Ular/Snake Belalang/Grasshopper
Tikus/Rat
Cendawan/Mushroom
(a) Bina satu siratan makanan berdasarkan rajah di atas.
Construct a food web based on the diagram above.

Tikus Ular
Rat Snake
Padi Helang
Paddy Eagle

Belalang Burung pipit
Grasshopper Sparrow
(b) Berdasarkan siratan makanan di 3(a), tandakan (✓) pada karnivor primer dalam siratan makanan tersebut.
Based on the food web in 3(a), tick (✓) the primary carnivores in the food web.

Helang Ular ✓ Belalang
Eagle Snake Grasshopper

Tikus Burung pipit ✓ Pokok padi
Rat Sparrow Paddy plant

4. Wei Ting membina satu siratan makanan di ladang jagung seperti yang ditunjukkan di bawah. SP 2.1.2
Wei Ting constructs a food web in a maize plantation as shown below.
Pokok jagung Ulat beluncas Ayam Buaya
Maize plant Caterpillar Chicken Crocodile

Belalang Burung pipit Helang
Grasshopper Sparrow Eagle

Guru sainsnya memberitahu bahawa satu haiwan telah tersilap diletakkan dalam siratan makanan.
Her science teacher told her that one animal was incorrectly put in the food web. TP4 KBAT Menganalisis
(a) Apakah haiwan yang telah tersilap diletakkan dalam siratan makanan tersebut?
What is the animal that was incorrectly put in the food web?

Buaya / Crocodile
(b) Berikan satu sebab bagi menjelaskan jawapan anda di 4(a).
Give one reason to explain your answer in 4(a).
Kawasan ladang jagung bukan habitat bagi buaya habitat bagi buaya ialah di kawasan sungai.

The maize plantation is not a habitat for crocodiles. The habitat for crocodiles is in the river area.

5. Rajah di bawah menunjukan aliran tenaga daripada pengeluar kepada pengguna. SP 2.1.2 Modul HEBAT 1
The diagram below shows the energy flow from the producer to the consumers.

500 kJ Pengguna 50 kJ Pengguna X kJ Pengguna
Pengeluar primer sekunder tertier
Producer Primary Secondary Tertiary Aliran Tenaga dalam
consumer consumer consumer Rantaian Makanan
Flow of Energy in a Food
90% 90% 90% 90%
VIDEO Chain.
Tenaga hilang sebagai tenaga
Energy lost as heat

© Penerbitan Pelangi Sdn. Bhd. 14

02 Bab 2.indd 14 9/24/20 4:09 PM