Lernkartei Chemistry Final Part 2

Karten	72
Sprache	English
Kategorie	Chemie
Stufe	Universität
Erstellt / Aktualisiert	11.05.2017 / 16.01.2024
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Sign the correct answer:

Collagens are structural fibrous proteins, the most abundant in Vertebrates.

Collagen is an important constituent of dentine

Collagen fibers do not hold the animal tissue together

The most prominent amino acids of collagen are: Gly 33%, Pro-Hyp 22%, and Ala 11%

Collagen contains hydroxylysine, which rarely, if ever, occurs in proteins

Define the prosthetic group in the listed conjugated proteins:

(a)Lipoproteins

(b)Glycoproteins

(c)Nucleoproteins

(d)Heme proteins

(e)Metalloproteins

(a)Lipids

(b)Carbohydrates

(c)Nucleic acid

(d)Heme group

(e)Iron, calcium

Fill up the empty spaces in the following sentences:

(a)Denaturation does not effect the structer of proteins
(b)Dialysis is routinely used in the lab to remove excess of after resuspension
(c)High-molecular weight proteins constituents of plasma exert ”colloid osmotic pressure” called also pressure

(a)primary

(b)ions

(c)oncotic

Select the true sentences for glycosides:

They are complex carbohydrates, in which the –OH group linked to the a….

They do not undergo a mutarotation

They are widely distributed in plants, but they can also be present in animal tissues as glucuronides

Glycosides are formed by chain forms of sacchaides

Some of plant glycosides have a pharmacologic effect and were used in medicine

Some of the main properties of sialic acid (SA) are:

Acidic character, negative charge

Basic character, positive charge

Carboxylic group can form hydrogen bonds & Participation in sucrose hydrolusis

Protection the protein part against proteolysis and denaturation

Participation in the formation of Sialyl-Lewis structures of glycoproteins

List the vitamins soluble in lipids:

A,D,K,E

Are omega 3 and 6 saturated or unsaturated fatty acids:

Unsaturated

Are they essential or non-essential

Essential