单词
alkaloid
读音
ˈælkəlɔɪd
美式
英式
词根
无
释义
n. [有化] 生物碱；植物碱基
例句
The Saussurea involucrata chemical composition was: alkaloid, flavanone, sterol, volatile oil, 16 kind of amino acids, Saussurea involucrata lactone and so on.
雪莲化学成分为：生物碱、黄酮、甾醇、挥发油、16种氨基酸、雪莲内酯等。
Nicotine is a colorless, poisonous alkaloid.
尼古丁是无色有毒生物碱。
It is a curare alkaloid derived from the South American plant.
它是箭毒碱，提取自一种南美产的植物。
The Saussurea involucrata chemical composition was: alkaloid, flavanone, sterol, volatile oil, 16 kind of amino acids, Saussurea involucrata lactone and so on.
雪莲化学成分为：生物碱、黄酮、甾醇、挥发油、16种氨基酸、雪莲内酯等。
Nicotine is a colorless, poisonous alkaloid.
尼古丁是无色有毒生物碱。
It is a curare alkaloid derived from the South American plant.
它是箭毒碱，提取自一种南美产的植物。
强化记忆
无
看视频学发音
Think of the molecular target of a neurotoxic alkaloid as a lock,and the alkaloid itself as the key.When the toxic key slides into the lock,
So what prevents poison frogs from poisoning themselves?Think of the molecular target of a neurotoxic alkaloid as a lock,and the alkaloid itself as the key.
For poison dart frogs and many other animals with neurotoxic defenses,a few genetic changes alter the structure of the alkaloid-binding sitejust enough to keep the neurotoxin from exerting its adverse effects.
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