enzyme
An enzyme is a biological catalyst, typically a protein, that speeds up specific chemical reactions within a living organism. These molecules are essential for various metabolic processes, such as digestion, where they break down complex nutrients into smaller parts.
例句
3 / 5The enzymes in your saliva start breaking down carbohydrates the moment you begin chewing.
Natural substances in your mouth start processing starchy foods as soon as you eat.
The patient's blood test revealed a significant elevation in liver enzymes, suggesting potential organ stress.
Medical tests showed a high level of specific proteins in the liver, which might indicate health issues.
I've been taking these enzyme pills to help me digest dairy better, and they really work.
I use these supplements to help my stomach process milk, and I've noticed a big difference.
词族
记忆技巧
Think of an enzyme as a pair of 'EN'-ergetic 'Z'ippers: they help zip (build) or unzip (break down) molecules much faster than they would on their own.
快速测验
Lactose intolerance is caused by the body's inability to produce enough of the _____ called lactase.
正确！
正确答案是： enzyme
例句
The enzymes in your saliva start breaking down carbohydrates the moment you begin chewing.
everydayNatural substances in your mouth start processing starchy foods as soon as you eat.
The patient's blood test revealed a significant elevation in liver enzymes, suggesting potential organ stress.
formalMedical tests showed a high level of specific proteins in the liver, which might indicate health issues.
I've been taking these enzyme pills to help me digest dairy better, and they really work.
informalI use these supplements to help my stomach process milk, and I've noticed a big difference.
The study demonstrates how the restriction enzyme cleaves the DNA strand at a specific nucleotide sequence.
academicThe research shows how a particular protein cuts the DNA chain at a precise location.
Our R&D department is looking for more cost-effective enzymes to improve the efficiency of the fermentation process.
businessThe development team is searching for cheaper biological catalysts to speed up production.
词族
常见搭配
常用短语
enzyme-linked
Connected to or detected by using enzymes (common in lab tests like ELISA).
proteolytic enzyme
An enzyme that specifically breaks down proteins.
restriction enzyme
A protein used in genetic engineering to cut DNA.
容易混淆的词
Hormones are chemical messengers that travel through the blood to signal cells, whereas enzymes are catalysts that speed up chemical reactions.
Bacteria are living single-celled organisms, while enzymes are just protein molecules produced by living things.
使用说明
The word 'enzyme' is almost exclusively used in biological, medical, or industrial chemistry contexts. It is a countable noun, meaning you can have one enzyme or many different enzymes.
常见错误
Learners sometimes confuse 'enzyme' with 'yeast' or 'bacteria' because they are all associated with fermentation, but an enzyme is a molecule, not a living organism.
记忆技巧
Think of an enzyme as a pair of 'EN'-ergetic 'Z'ippers: they help zip (build) or unzip (break down) molecules much faster than they would on their own.
词源
Derived from the Greek 'en' (in) and 'zūmē' (leaven or yeast), literally meaning 'in leaven' because enzymes were first studied in the fermentation of yeast.
语法模式
文化背景
In modern wellness culture, 'digestive enzymes' are a popular health supplement, often marketed to improve gut health and reduce bloating.
快速测验
Lactose intolerance is caused by the body's inability to produce enough of the _____ called lactase.
正确！
正确答案是： enzyme
相关词汇
相关词
to
A1Used to indicate the place, person, or thing that someone or something moves toward. It can also mark the recipient of an action or the limit of a range.
and
A1A primary conjunction used to connect words, phrases, or clauses that are grammatically equal. It indicates addition, a sequence of events, or a relationship between two things.
a
A1A word used before a singular noun that is not specific or is being mentioned for the first time. It is used only before words that begin with a consonant sound to indicate one of something.
that
A1This word is a demonstrative pronoun used to indicate a specific person, object, or idea that is further away in space or time from the speaker. It is also used to refer back to something that has already been mentioned or to introduce a clause that identifies something.
I
A1The pronoun 'I' is used by a speaker or writer to refer to themselves as the subject of a verb. It is the first-person singular subject pronoun in English and is always capitalized regardless of its position in a sentence.
for
A1Used to show who is intended to have or use something, or to explain the purpose or reason for an action. It is also frequently used to indicate a specific duration of time.
not
A1A function word used to express negation or denial. It is primarily used to make a sentence or phrase negative, often following an auxiliary verb or the verb 'to be'.
with
A1A preposition used to indicate that people or things are together, in the same place, or performing an action together. It can also describe the instrument used to perform an action or a characteristic that someone or something has.
he
A1A pronoun used to refer to a male person or animal that has already been mentioned or is easily identified. It functions as the subject of a sentence.
you
A1Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.
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