Try it free — the AI marks 3 answers a day.
A free account marks 30 a day.Sign up free →
Satu kelas biologi mengkaji bagaimana hidupan mengesan dan bertindak balas terhadap rangsangan. Mereka mula-mula meneliti bagaimana isyarat saraf melintas dari satu neuron ke neuron seterusnya pada satu simpang, kemudian menyiasat bagaimana anak benih bijirin muda tumbuh sebagai gerak balas terhadap cahaya dan graviti.
Dua kumpulan dadah bertindak ke atas sinaps secara berlawanan. Kumpulan P (contohnya heroin dan alkohol) ialah dadah penenang (depresan). Kumpulan S (contohnya amfetamina dan kafeina) ialah dadah perangsang (stimulan). Huraikan perbezaan bagaimana kedua-dua kumpulan dadah ini mempengaruhi penghantaran impuls saraf merentasi sinaps.
A biology class studies how living things detect and respond to stimuli. They first examine how a nerve signal passes from one neurone to the next at a junction, then investigate how young cereal seedlings grow in response to light and gravity.
Two groups of drugs act on the synapse in opposite ways. Group P (for example heroin and alcohol) are depressant drugs. Group S (for example amphetamine and caffeine) are stimulant drugs. Describe the differences in how these two groups of drugs affect the transmission of nerve impulses across the synapse.
Bahasa Melayu
Satu kelas biologi mengkaji bagaimana hidupan mengesan dan bertindak balas terhadap rangsangan. Mereka mula-mula meneliti bagaimana isyarat saraf melintas dari satu neuron ke neuron seterusnya pada satu simpang, kemudian menyiasat bagaimana anak benih bijirin muda tumbuh sebagai gerak balas terhadap cahaya dan graviti.
Dua kumpulan dadah bertindak ke atas sinaps secara berlawanan. Kumpulan P (contohnya heroin dan alkohol) ialah dadah penenang (depresan). Kumpulan S (contohnya amfetamina dan kafeina) ialah dadah perangsang (stimulan). Huraikan perbezaan bagaimana kedua-dua kumpulan dadah ini mempengaruhi penghantaran impuls saraf merentasi sinaps.
English
A biology class studies how living things detect and respond to stimuli. They first examine how a nerve signal passes from one neurone to the next at a junction, then investigate how young cereal seedlings grow in response to light and gravity.
Two groups of drugs act on the synapse in opposite ways. Group P (for example heroin and alcohol) are depressant drugs. Group S (for example amphetamine and caffeine) are stimulant drugs. Describe the differences in how these two groups of drugs affect the transmission of nerve impulses across the synapse.
[6 marks]
🧭Modelled on Trial paper · Kertas 2 · Q9(b)
Guided Hint
— no answers, just a nudge
Thinking...
Worked solution
That's the full method. Now try one like it yourself.