phenylalanine

phenylalanine — 名詞

1. One of the building blocks of protein that the human body cannot produce on its

1.名詞C1
釋義

苯丙胺酸

人體無法自行合成的必需胺基酸

One of the building blocks of protein that the human body cannot produce on its own and must obtain from food. Found in meat, eggs, fish, dairy products, and some artificial sweeteners, it is converted by the liver into another amino acid called tyrosine, which the body uses to make important chemicals for the brain and nervous system.

例句

Babies born with phenylketonuria cannot break down phenylalanine, so they must follow a strict low-protein diet from birth.

患有苯酮尿症的嬰兒無法分解苯丙胺酸，因此從出生起就必須嚴格遵守低蛋白飲食。

passive: cannot break down + low-protein diet for PKU patients

Ayesha checked the label carefully because her son needed to limit his phenylalanine intake.

Ayesha 仔細檢查了標籤，因為她兒子需要限制苯丙胺酸的攝取量。

collocation: phenylalanine intake

常見搭配
  • phenylalanine levels
  • phenylalanine intake
  • phenylalanine hydroxylase
  • phenylalanine metabolism
  • high in phenylalanine
  • low in phenylalanine
  • phenylalanine-free formula
  • phenylalanine concentration

用法筆記

Primarily used in medical and biochemical contexts. Frequently appears alongside phenylketonuria (PKU), a genetic disorder in which the body cannot metabolise this amino acid.

常見錯誤

Phenylalanine is a non-essential amino acid you do not need from food.
Phenylalanine is an essential amino acid that the body cannot make and must come from the diet.
'Essential' in biochemistry means the body cannot produce it; it must be eaten.

同根字

常見搭配

名詞搭配

常用片語

  • high in phenylalanine
  • low in phenylalanine
  • phenylalanine-free
  • phenylalanine-restricted diet

介系詞搭配