Carbohydrates 5 Flashcards

1
Q

compounds that stimulate taste receptors for sweetness but are metabolized for energy inefficiently at best

A

artificial sweeteners

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2
Q

seven artificial sweeteners that are approved for use in US

A

stevia
aspartame
sucralose
neotame
acesulfame potassium
saccharin
advantame

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3
Q

sugar alcohol that is sometimes used as an artificial sweetener

A

sorbitol

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4
Q

most common dissacharides

A

sucrose
lactose
maltose

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5
Q

sucrose is made up of

A

glucose and fructose

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6
Q

lactose is made up of

A

galactose and glucose

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7
Q

maltose is made up of

A

glucose and glucose

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8
Q

all of the common disaccharides contain at least __________

A

one glycosidic bond

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9
Q

How are disaccharides named?

A

which carbons are linked to each other
how anomeric carbon of glycosidic bond is configured

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10
Q

comprised of few sugar residues

A

oligosaccharides

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11
Q

True or False: oligosaccharides often but not always contain modified sugars

A

True

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12
Q

True or False: Oligosaccharides are typically found attached to other cellular structures

A

True

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13
Q

What is made when oligosaccharides is bound to sphingolipids?

A

cerebrosides or gangliosides

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14
Q

What is made when oligosaccharides is bound to proteins?

A

glycoproteins

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15
Q

____________ in membrane protein play important roles in cellular identity/recognition

A

oligosaccharides

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16
Q

The pattern of ______________ displayed on the extracellular face of the plasma membrane act as a sort of _______ that identifies specific cell types.

A

oligosaccharides; barcode

17
Q

True or False: Foreign oligosaccharides structures trigger immune system to attack them thus it can lead to problems such as rejection of donated organs.

A

True

18
Q

_______________ attached to protein may determine their cellular destinations

A

oligosaccharides

19
Q

True or False: Improper glycosylation or errors in subsequent sugar modification patterns can result in the success of proteins to reach the correct cellular compartment

A

False; failure of protein

20
Q

arises from a defective phosphotransferase in the Golgi apparatus

A

inclusion cell disease (I-cell disease)