Page 56 - APS(2022)_TG4 _Edisi Guru

Sains Tingkatan 4 Bab 3
Tarikh:
Keputusan Kadar denyutan nadi (bpm)
Result Aktiviti Pulse rate (bpm)
fizikal
K3 Physical Ahli A Ahli B Ahli C Ahli D Ahli E Bacaan purata
PI activity Member A Member B Member C Member D Member E Average reading
1 Berehat
2 Rest
3
S Berjalan (Jawapan murid / Student’s answer)
Walking

Berlari
Running 3 3
K3P1 K3P2 K3P3
K1P5
Perbincangan 1. Aktiviti fizikal yang lebih cergas akan meningkatkan kadar denyutan nadi seseorang. BAB BAB
Discussion
A vigorous physical activity will increase the pulse rate of an individual.
K4
PI 2. Terangkan mengapa kadar denyutan nadi seseorang berubah mengikut jenis aktiviti fizikal?
1 Explain why the pulse rate of an individual changes depending on the type of physical activity?
2 TP 4 Menganalisis
3
S Semasa melakukan aktiviti cergas seperti berlari, aktiviti sel menjadi sangat aktif dan oksigen
yang banyak diperlukan oleh sel. Justeru, jantung akan mengepam darah dengan kadar yang
lebih tinggi untuk membekalkan oksigen yang mencukupi ke sel-sel badan.
During vigorous activities such as running, cellular activities become very active and large amounts of oxygen is

needed by cells. Hence, the heart will pump blood at a higher rate to supply adequate oxygen to body cells.

K4P1
3. Tandakan (✓) pada pernyataan yang betul.
Tick (✓) on the correct statements.

(a) Bayi dan kanak-kanak mempunyai kadar denyutan nadi yang lebih rendah
berbanding dewasa.
Babies and children have lower pulse rates compared to adults.

(b) Individu yang tidak sihat mempunyai kadar denyutan nadi yang lebih
rendah atau lebih tinggi berbanding individu yang sihat. ✓
An individual with health problems has a lower or higher pulse rate compared to a healthy
individual.

(c) Atlet mempunyai kadar denyutan nadi yang lebih rendah disebabkan oleh
otot kardiak mereka yang lebih kuat. ✓
Athletes have lower pulse rates because their cardiac muscles are stronger.

Kesimpulan 1. Hipotesis diterima .
Conclusion
The hypothesis is accepted . K4P2

2. Semakin lasak aktiviti senaman yang dilakukan, semakin tinggi kadar denyutan
nadi.
The higher the intensity of the exercise, the higher the pulse rate. K4P3

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