Page 30 - Amali Proses Sains T3 (EG)

Sains Tingkatan 3 PBD Bab 1

Perbincangan 1. Kenal pasti kawasan yang peka terhadap rasa tertentu. SP 1.2.3 TP 1
Discussion Identify areas that are sensitive to a particular taste.

Bahagian
pada lidah
Area of
tongue

Larutan Larutan gula Larutan garam Air limau nipis Air kopi Larutan MSG
Solution Sugar solution Salt solution Lime juice Coffee MSG solution

Rasa Manis Masin Masam Pahit Umami
Taste Sweet Salty Sour Bitter Umami

2. Bahagian lidah manakah yang paling tidak sensitif terhadap rasa? SP 1.2.3 TP 2
Penerbitan Pelangi Sdn. Bhd.
Which part of the tongue is least sensitive to taste?
Belakang lidah / Back of the tongue

3. Adakah pedas dianggap sebagai rasa? Kenapa? SP 1.2.3 TP 3 KBAT Mengaplikasi
Is spicy considered a taste? Why?
Pedas bukan rasa, kerana ia tidak dikesan oleh tunas rasa.
Spicy is not a taste, because it is not detected by the taste buds. SP 1.2.3 TP 3 KBAT Mengaplikasi

Pentaksiran Bilik Darjah What is the role of saliva when we taste food? dalam makanan melarut supaya

4. Apakah peranan air liur semasa kita merasa makanan?

Air liur membolehkan
bahan kimia
tunas rasa dapat mengesan rasa makanan itu.
Saliva enables

the taste. chemicals in food to dissolve so that the taste buds can detect

5. Lengkapkan peta alir untuk menunjukkan bagaimana lidah mengesan rasa. SP 1.2.3 TP 2
Complete the flow map to show how the tongue detects taste.
i-THINK Peta Alir

Reseptor rasa Air liur Saraf Tunas rasa
Taste receptor Saliva Nerve Taste bud

Carta Mengajar
Lidah - Deria Rasa
Tongue - The Sense of Taste
Bahan kimia dalam (a) Air liur (b) Tunas rasa
makanan Saliva Taste bud
Chemicals in food

(c) Reseptor rasa (d) Saraf Otak
Taste receptor Nerve Brain

Kesimpulan Lidah ialah organ deria rasa.
Conclusion
The tongue is the sensory organ of taste.

© Penerbitan Pelangi Sdn. Bhd. 42