epimer

/ˈɛpɪmə(ɹ)/

Meanings

noun

Any diastereoisomer that has the opposite configuration at only one of the stereogenic centres.

Examples :

"Glucose and galactose are epimers because they differ in configuration only at carbon number 4. "

chemistry biochemistry

Related Words

opposite noun

/ˈɒpəsɪt/ /ˈɑp(ə)sɪt/

Something opposite or contrary to something else.

"My brother's opinion is the opposite of mine on the best way to study for the exam. "

carbon noun

/ˈkɑɹbən/

The chemical element (symbol C) with an atomic number of 6. It can be found in pure form for example as graphite, a black, shiny and very soft material, or diamond, a colourless, transparent, crystalline solid and the hardest known material.

"The pencil's lead is made of carbon. "

that noun

/ˈðæt/ /ˈd̪æt/ /ˈðɛt/

Something being indicated that is there; one of those.

"My sister brought several books to the library, and that one is about dinosaurs. "

because adverb

/bɪˈkɒz/ /biˈkɔz/

For the reason (that).

"I went to the park because the weather was nice. "

configuration noun

/kənˌfɪɡjəˈreɪʃən/ /kənˌfɪɡjʊˈreɪʃən/

Form, as depending on the relative disposition of the parts of a thing's shape; figure; form factor.

"The office chairs came in a standard configuration, but employees could adjust the back support and armrests to their liking. "

galactose noun

/ɡəˈlæktos/ /ɡəˈlæktouz/

A monosaccharide found, along with lactose, in dairy products, and is synthesized by the body where it is found associated with glycolipids and glycoproteins.

"The milk my daughter drinks contains galactose, a simple sugar found in dairy products. "

epimers noun

/ˈɛpɪmərz/

Any diastereoisomer that has the opposite configuration at only one of the stereogenic centres.

"Glucose and galactose are epimers because they differ only in the configuration around one carbon atom. "

glucose noun

/ˈɡluːkoʊz/ /ˈɡlukoʊs/

A simple monosaccharide (sugar) with a molecular formula of C6H12O6; it is a principle source of energy for cellular metabolism.

"After eating a banana, the body breaks down the carbohydrates into glucose, which provides energy for activities like playing sports or studying. "

diastereoisomer noun

/daɪˌæstəriːoʊˈaɪsəmər/ /daɪˌæstɪəriːoʊˈaɪsəmər/

A stereoisomer having multiple chiral centres; a diastereoisomer cannot normally be superimposed on the mirror image of another.

"Because they differ in their spatial arrangement around multiple chiral centers and are not mirror images, erythrose and threose are diastereoisomers of each other. "

number noun

/ˈnʌmbə/ /ˈnʌmbɚ/ /ˈnʌmə/ /ˈnʌmɚ/

An abstract entity used to describe quantity.

"Zero, one, −1, 2.5, and pi are all numbers."

differ verb

/ˈdɪfə/ /ˈdɪfɚ/

Not to have the same traits or characteristics; to be unalike or distinct.

"These shoes only differ from those ones in having slightly longer laces."

centres noun

/ˈsen.tə(ɹ)s/ /ˈsɛn.tɚs/

The point in the interior of a circle that is equidistant from all points on the circumference.

"In geometry class, we learned that the centres of circles are always the same distance from the edge, no matter where on the edge you measure. "