Which is the only carbohydrate that we can not synthesize?
Starch
Vitamine C
Chitin
Sugar
Glucose
Which of these carbohydrates have in general a crystalline structure and a sweet flavor?
Monosaccharides
Homopolysaccharides
Heteropolysaccharides
Polyhydroxyaldehides
Polyhydroxyketones
Which of these is the precursor of the synthesis of some aromatic rings?
D-Glyceraldehide
D-Erythrose
D-Ribose
D-Galactose
D-Ribulose
Select the one/s which is/are present in glycolysis
D-Glyceraldehyde
D-Glyceraldehide and D-Galactose
D-Glyceraldehide and dihydroxyacetone
Dihydroxyacetone and D-Galactose
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?
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
Sorbitol is a sugar which is inside the group of...
Deoxysugars
Amino sugars
Acid sugars
Ester sugars
Which of this is not true?
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.
Which of these carbohydrates has more ramifications and how many?
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.
Which of these is responsible of fever?
Heterosides
Peptidoglycans
Proteoglycans
Glycoproteins
Lipopolysaccharides
Which of these is not true?
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
