Worksheets1.2 Ransangan dan Gerak balas dalam manusia (HIDUNG)
Total questions: 9
Worksheet time: 7mins
a)__________ ialah organ deria bau. Bau merupakan bahan
kimia yang wujud dalam udara. Lebih kurang 10 juta b)________ terletak di bahagian atas rongga hidung
The a)__________ is the sensory organ of smell. Smells are chemical substances present in the air. About 10 million b)_________ are located at the roof of the nasal cavity
a) hidung / nose
b) sel deria bau / sensory cell of smell
a) hidung / nose
b) sel hidung / nose cell
a) lidah / tongue
b) sel rasa / taste cell
Sel deria bau amat halus dan diselaputi dengan lapisan __________ .
Sensory cells for smell are tiny and covered with a layer of
mukus / mucous
debu / dust
selaput nipis / thin membrane
cecair / liquid
Sel deria bau
Sensory cells for smell
A&C
C&H
D&H
D&A
Saraf ke otak
Nerves to the brain
A
B
C
D
Berapakah jumlah sel deria bau dalam rongga hidung?
How many smell receptors are there in the nasal cavity?
1 juta / Million
10 juta/ Millions
100 Juta/ Millions
10 Billion
Bahan kimia dalam udara akan melarut dalam air liur dan menghasilkan impuls saraf.
Chemical substances in the air will dissolve in saliva and stimulate the sensory cells for smell to produce nerve impulses.
Benar/ True
Palsu/ False
Saraf
Nerves
A
B
C
D
Mengapakah seseorang yang menghidap selesema lazimnya tidak dapat mengesan bau?
Why does a person with the flu usually not be able to detect odors?
Kepekaan hidung dipengaruhi oleh kuantiti mukus di dalam rongga hidung. Sekiranya terlalu banyak mukus dihasilkan,contohnya apabila seseorang menghidap selesema,reseptor bau menjadi kurang peka.Mukus yang tebal menghalang bahan kimia daripada merangsang reseptor bau.
Nasal sensitivity is affected by the quantity of mucus in the nasal cavity. If too much mucus is produced, for example when a person has the flu, the smell receptors become less sensitive. Thick mucus prevents chemicals from stimulating odor receptors.
YES
NO
KELAS/CLASS
