biyokimya 170-207

Arda Emre HAN · 76問 · 2年前

通報

問題一覧

Show incorrect statement for G-protein.

It binds with protein kinase

Proopiomelanocortin is not a precursor of hormone:

TTH

Which hormones increase the amount of glucose in blood? 1) Calcitriol 2) Glucagon 3) Thyroxine 4) Glucocorticoids 5) Insulin

2,3,4

. Deficiency of antidiuretic hormone causes:

diabetes insipidus

What is the cause of gigantism?

increased secretion of somatotropic hormone in children

What is the cause of acromegaly?

increased secretion of somatotropin in adults

What is the cause of dwarfism?

decreased secretion of somatotropin in children

What is the cause of myxedema?

decreased secretion of thyroxine in adult

What is the cause of cretinism?

decrease in the amount of thyroxine in childhood

Which statements are incorrect? 1) Insulin activates glycogen synthase 2) Insulin decreases the activity of glycogen synthase 3) Insulin increases the amount of sugar in blood 4) Insulin stimulates lipogenesis

2,3

Another name for phosphatidylcholine is:

lecithins

Cholesterol is precursor of:

bile acids, vitamin D, sex hormones

Which of the following are fatty acids?

palmitic and oleic acids

Glycolipids are divided into:

cerebrosides and gangliosides

Phospholipids are divided into:

glycerophospholipids and sphingophospholipids

Choose saturated fatty acids.

butyric acid and palmitic acid

Components of lecithin are:

glycerol, fatty acids, H3PO4 and choline

Show the components of the sphingomyelins.

sphingosine + fatty cid +H3PO4 + choline

Show the products obtained by hydrolysis of cephalin.

phosphatidic acid + ethanolamine

Show the products obtained by hydrolysis of cerebroside.

sphingosine + fatty acid + galactose

. Which substances are not part of cell membranes? 1) Glycerol 2) Cholesterol 3) TAG 4) Proteins 5) Phosphatidylcholine

1,3

Linoleic acid and linolenic acid are:

unsaturated fatty acids

Arachidonic acid is precursor:

prostaglandins

Show homopolysaccharides.

starch, inulin, chitin

Which carbohydrates have fructose in structure?

sucrose, inulin

Which oligosaccharide does not have reducing properties?

sucrose

Which oligosaccharide is composed of glucose and galactose molecules?

lactose

Which statement is not typical for cellulose?

it is energy source

Phlorizin poisoning leads to:

hypoglycemia, glycosuria

Sorbitol, mannitol, dulcitol are the products of reduction of the following hexoses, respectively:

glucose, mannose, galactose

Моnomers of starch and inulin are:

α-glucose, β-fructose

Determine oligosaccharide (I) called malt sugar, its monomers (II) and the type of bond (III) between them: I II III

maltose α-D-glucose - α-D-glucose 1→4

Which polysaccharides monomer is glucose?

starch, glycogen, cellulose

Which reaction is related to monosaccharides?

Trommer’s

What is antibacterial component of saliva and its chemical nature?

lysozyme - glucoproteid

Show monosaccharides formed in hydrolysis of sucrose.

α-D-glucose and β-D-fructose

Show couples of anomers.

α-D-glucose and β-D-glucose

Final product of hydrolysis of proteins is :

amino acids

Which is complex protein ?

vitin

Which of the following bonds are formed in a primary structure of protein?

peptide bonds

Carnosine and anserine are composed of

β-alanine and histidine

Interferon is :

glycoprotein

Which proteins contain copper?

cytochrome oxidase, ceruroplasmin

Which product is obtained on the complete hydrolysis of nucleic acids?

guanine

How can enzymes be categorized into classes?

based on the type of reactions catalyzed by an enzyme

Which enzymes include FAD?

xanthin oxidase, succinate dehydrogenase

Function of vitamin B6 :

it participates in the metabolism of amino acids

Show the biological role of thyrotropine .

It provides synthesis of tri- and tetraiodothyronine

Steroid nature hormones are :

estrogens, androgens, progestins

Components of gangliosides are:

sphingosine, fatty acids, oligosaccharides

Heparin is

heteropolysaccharides

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