Page 64 - Hybrid PBD 2022 Tg 5 - Biology

Biologi Tingkatan 5 Bab 2

Keputusan / Result:
(a) Kesan keamatan cahaya terhadap kadar fotosintesis
Effect of light intensity on the rate of photosynthesis
Bilangan gelembung udara yang dibebaskan
Jarak (cm) Kadar fotosintesis
-1
Distance (cm) dalam masa 5 minit (min )
Number of air bubbles released in 5 minutes
5
10 (Jawapan murid / Student's answer)
15
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20
(b) Kesan suhu terhadap kadar fotosintesis
Effect of temperature on the rate of photosynthesis

Bilangan gelembung udara yang dibebaskan
Suhu ( C) Kadar fotosintesis
o
Temperature ( C) dalam masa 5 minit (min )
o
-1
Number of air bubbles released in 5 minutes
10
20
30 (Jawapan murid / Student's answer)
35
40
50

(c) Kesan kepekatan karbon dioksida terhadap kadar fotosintesis
Effect of carbon dioxide concentration on the rate of photosynthesis
Kepekatan karbon Bilangan gelembung udara yang dibebaskan
dioksida (%) Kadar fotosintesis
-1
Carbon dioxide dalam masa 5 minit (min )
concentration (%) Number of air bubbles released in 5 minutes
0.00
0.04
0.08 (Jawapan murid / Student's answer)
0.12
0.16
0.20

Perbincangan/ Discussion:
1. Apakah fungsi larutan natrium hidrogen karbonat dalam eksperimen ini?
What is the function of sodium hydrogen carbonate solution in this experiment?
Untuk membekalkan gas karbon dioksida kepada Hydrilla sp. bagi menjalankan proses fotosintesis
To supply carbon dioxide for Hydrilla sp. to carry out photosynthesis.
2. Apakah yang diwakili oleh bilangan gelembung gas yang dibebaskan dalam masa 5 minit?
What is represented by the air bubbles released in 5 minutes?
Gas oksigen yang dibebaskan oleh Hydrilla sp. semasa fotosintesis
Oxygen released by Hydrilla sp. during photosynthesis

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02 HYBRID PBD BIOLOGY TG5.indd 39 18/11/2021 11:05 AM