Page 146 - KOMPILASI ARAHAN TUGASAN PEKA SPM KINTA UTARA 2022
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Discussion
1. K4P1
Bacterial Growth Against Tempareture
Number of bacterial
25
20
15
10
PANITIA SAINS DAERAH KINTA UTARA
5
0
5 37 70 Tempareture, C
o
2. K4P2a Because temperature 37 C is the optimum temperature for bacterial growth
o
o
o
while temperature 5 C and 70 C are not suitable for the growth of bacteria
3. K4P2b High temperature causes the bacterial enzyme to denaturise and very low
temperature causes the bacteria to become inactive.
4. K4P2c The operational definition for bacterial growth is a process that causes
bacterial colonies to grow.
5. K4P3 The growth of microorganism is the highest at 37 C.
o
6. K5P1 Yes, because a low temperature bacterial activity is at its lowest.
7. K5P2 Make sure hands are washed before experiment is conducted.
o
8. K5P3 Yes, the growth of microorganism is the highest at 37 C.
o
9. K5P4 Yes, the growth of microorganism is the highest at 37 C which is human body
temperature making human vulnerable to pathogenic diseases. Low
temperature is used to control bacterial growth in food substances while high
temperature is used as a sterilisation method.
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