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Biochemistry Lecture > Carbohydrates > Flashcards

Carbohydrates Flashcards

1
Q

major source of energy from diet

A

Carbohydrates

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2
Q

composed of
Carbon, Hydrogen, Oxygen

A

Carbohydrates

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3
Q

saccharides

A

sugars

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4
Q

produced by photosynthesis in plonts

A

Carbohydrates

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5
Q

Glucose synthesize in plants from C02, H2O, energy from the sun

A

Carbohydrates

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6
Q

oxidized in living cells (respiration) to produce Co2, H2O and energy

A

Carbohydrates

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7
Q

hydrate of carbon

A

Carbohydrates

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8
Q

Cn(H2O)m

A

Carbohydrates

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9
Q

C5H12O6 or C5(H2O)6

A

Glucose

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10
Q

polyhydroxy aldehydes, polyhydroxy Ketones or compounds that yield after hydrolysis

A

Carbohydrates

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11
Q

Breakdown of glucose

A

Hydrolysis

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12
Q

provides energy

A

Function of Carbohydrates

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13
Q

Glycogen - provides short term energy reserve

A

Function

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14
Q

supply carbon for synthesis of ofher blochemical substances

A

Function

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15
Q

part of structure DNA

A

Function

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16
Q

regulation of blood sugar

A

Function

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17
Q

source of dietary fibers

A

Function

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18
Q

Left-handed
Right - handed

A

Handedness

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19
Q

most abundant class of bioorganic molecules on planet Earth

A

Carbohydrates

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20
Q

produce carbohydrate via photosynthesis

A

Green (chlorophyll-containing) plants

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21
Q

Carbohydrates serve as structural elements

A

Cellulose

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22
Q

Provide energy reserves for the plants

A

Strach

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23
Q

carbohydrate storage, in the form of glycogen, provides a short -term energy reserve

A

Function

24
Q

supply carbon atoms for the syntheis of other biochemical substances ( proteins, lipids, and nucleic acids)

A

Function

25
Q

carbongarate oxidaton povides unergy.

A

Function

26
Q

form part of the structural framework of DNA and RNA molecules.

A

Function

27
Q

Carbohydrates linked to lipide are structural components of cell membranes

A

Function

28
Q

Carbohydrates linked to proteins function in a variety of cell-cell and cell-molcule recognition processes.

A

Function

29
Q

Carbohydrate glucose

A

polyhychoxy aldehyde

30
Q

Carbohydrate fructose

A

polyhydroxy ketones

31
Q

classified on the basis of molecular size as monosaccharides, disaccharides, oligosaccharide, and polysaccharides

A

Classification of carbohydrates

32
Q

carbohydrate that contains a single polyhydroxy aldehyde or polyhydroxy ketone unit.

A

Monosaccharide

33
Q

Carbohydrate that contains two monosaccharide units covalently bonded to each other

A

Disaccharide

34
Q

carbohydrate that contains three to ten monosaccharide units covalently bonded to each other.

A

Oligosacharride

35
Q

polymetric carbohydrate,that contains many monosaccharides units covalently bonded to each other

A

Polysaccharides

36
Q

the reflection of an object in a mirror.

A

Mirror image

37
Q

images that coincide at all points coincide when the image are laid upon each otner.

A

Superimposable mirror image

38
Q

handedness - generating carbon

A

chiral center

39
Q

atom in a molecule that has four diff. groups bonded to it in a terrahedral orientation .

A

Chiral center

40
Q

Molecule whose mirror image are not super imposable

A

Chiral molecule

41
Q

Molecule whose mirror image are super imposable

A

Achiral molcule

42
Q

isomers that have the same moleular and structural formula but differ in the orientation of atoms in space.

A

stereoisomers

43
Q

molecules are nonsuperimposable mirror images

A

Enantiomers

44
Q

not mirror images of each other.

A

Diastereomers

45
Q

Structural isomers and stereoisomers

A

Isomers

46
Q

Optical activity is the capacity of a substance to rotate the plane polarized light posing throughit.

A

Optical Isomerism

47
Q

Dextrorotatory (d) or (t)

A

Clockwise direction

48
Q

Levorotatory (l) or (-)

A

counter clockwise direction

49
Q

Levorotatory (l) or (-)

A

counter clockwise direction

50
Q

rotate polarized ligut clock-wise or counter clockwise through certain angle

A

Chiral compounds

51
Q

it two monosaccharides differ from elo in their configuration around a single

spentic cartoon (other than anomers) atom

A

Epimerism

52
Q

Isomers obtained from the change of position of hydroxyl group attacted to the anomeric carbon eg. a & B glucose and Z anomers

A

Anomerism

53
Q

a & B fructose and Z anomers

A

Anomerism

54
Q

a & B fructose and Z anomers

A

Anomerism

55
Q

the charge in the specific optical rotation by the inter conversion of to a A & B forms

of D glucose to an equilibrium mixture

A

Mutarotation

Biochemistry Lecture (3 decks)

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