CHAPTER 14 & 15

Descrição

Biochemestry test
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Resumo de Recurso

Questão 1

Questão
Which is the only carbohydrate that we can not synthesize?
Responda
  • Starch
  • Vitamine C
  • Chitin
  • Sugar
  • Glucose

Questão 2

Questão
Which of these carbohydrates have in general a crystalline structure and a sweet flavor?
Responda
  • Monosaccharides
  • Homopolysaccharides
  • Heteropolysaccharides
  • Polyhydroxyaldehides
  • Polyhydroxyketones

Questão 3

Questão
Which of these is the precursor of the synthesis of some aromatic rings?
Responda
  • D-Glyceraldehide
  • D-Erythrose
  • D-Ribose
  • D-Galactose
  • D-Ribulose

Questão 4

Questão
Select the one/s which is/are present in glycolysis
Responda
  • D-Glyceraldehyde
  • D-Galactose
  • D-Glyceraldehide and D-Galactose
  • D-Glyceraldehide and dihydroxyacetone
  • Dihydroxyacetone and D-Galactose

Questão 5

Questão
Glucose can cycle leading to the formation of a new asymmetric carbon atom. How many carbon atoms have the beta-D-glucopyranose and where is pointing its hydroxyl group?
Responda
  • 6 Carbon atoms and it is pointing up
  • 6 Carbon atoms and it is pointing down
  • 5 Carbon atoms and it is pointing up
  • 5 Carbon atoms and it is pointing down
  • Any of these

Questão 6

Questão
Sorbitol is a sugar which is inside the group of...
Responda
  • Deoxysugars
  • Amino sugars
  • Acid sugars
  • Ester sugars
  • Any of these

Questão 7

Questão
Which of this is not true?
Responda
  • Sucrose does not have a reducing power and it is a oligosaccharide.
  • Polysaccharides are chains of 10 or more monosaccharides.
  • Starch and chitin are constituted only by alfa-Glucose that is linked by alfa (1-4) bonds.
  • Starch have a lot of non-reducing ends it its ramifications and only one reducing end.
  • Starch is only present in vegetables and if amylose and amylopectin is present they associate together forming helicoidal structures.

Questão 8

Questão
Which of these carbohydrates has more ramifications and how many?
Responda
  • Starch and has a ramification per 8-12 residues.
  • Glycogen and has a ramification per 8-12 residues.
  • Glycogen and has a ramification per 24-30 residues.
  • Starch and has a ramification per 24-30 residues.
  • Any of these

Questão 9

Questão
Which of these is responsible of fever?
Responda
  • Heterosides
  • Peptidoglycans
  • Proteoglycans
  • Glycoproteins
  • Lipopolysaccharides

Questão 10

Questão
Which of these is not true?
Responda
  • Glut 1 is important because it is the transporter that is present in red blood cells and in the brain
  • Glut 2 is present in the liver
  • Glut 3 is present in the brain
  • Glut 4 is the glucose transporter that is present in muscle and adipose tissue and it is sensible to insulin
  • In the intestine the amylase of the pancreatic fluid will break beta (1-4) bonds of carbohydrates

Semelhante

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LESSON 17: PYRUVATE AND CAC
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LESSON 21 & 22
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LESSON 23, 24 & 25
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BLOCK F: LESSONS 29, 30 & 31
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Lesson 32 & 33
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Lesson 34 & 35
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