Study sets matching "riboflavin"

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Study sets matching "riboflavin"

Riboflavin
What B vitamin is riboflavin?
What are the components of Riboflavin?
Why is it yellow
Ring structure makes Flavin
B2
Flavin + Ribitol
from the Flavin
sensitive to UV light
What B vitamin is riboflavin?
B2
What are the components of Riboflavin?
Flavin + Ribitol
32 terms
Riboflavin
What type of vitamin is Riboflavin?
What is the vitamin form of riboflavin?
Riboflavin
What is one of the two coenzyme forms…
Water soluble ... B2
Riboflavin... Flavin and ribitol
FMN... Flavin mononucleotide ... Flavin+ ribitol+ 1 phosphate group
What type of vitamin is Riboflavin?
Water soluble ... B2
What is the vitamin form of riboflavin?
Riboflavin... Flavin and ribitol
35 terms
Riboflavin
What are the two components of Ribofla…
Riboflavin!
What is one coenzyme form of riboflavin?
What is one of the two coenzyme forms…
1. Ribitol- CHO chain... 2. Flavin- Yellow rings... why vtms "smell…
what is this molecule?
FMN- flavin mononucleotide is a coenzyme form of the vitamin…
FAD- Flavin Adinine Dinucleotide ... **most common in the body…
What are the two components of Ribofla…
1. Ribitol- CHO chain... 2. Flavin- Yellow rings... why vtms "smell…
Riboflavin!
what is this molecule?
Riboflavin
What type of vitamin is Riboflavin?
What is the vitamin form of riboflavin?
Riboflavin
What is one of the two coenzyme forms…
Water soluble ... B2
Riboflavin... Flavin and ribitol
FMN... Flavin mononucleotide ... Flavin+ ribitol+ 1 phosphate group
What type of vitamin is Riboflavin?
Water soluble ... B2
What is the vitamin form of riboflavin?
Riboflavin... Flavin and ribitol
Riboflavin
Riboflavin
Riboflavin has how many coenzyme deriv…
Sources of riboflavin
Poor sources of riboflavin
Flavin molecule and ribitol side chain
2, FMN and FAD
Milk/dairy, eggs, meat, legumes
Fruits and cereal grains
Riboflavin
Flavin molecule and ribitol side chain
Riboflavin has how many coenzyme deriv…
2, FMN and FAD
21 terms
Riboflavin
riboflavin food sources
Form of riboflavin that is found in mi…
Form of riboflavin that is found in mo…
Form of riboflavin for absorption
Milk/ dairy, meat, eggs, legumes
Free or protein bound
FMN or FAD
Free riboflavin
riboflavin food sources
Milk/ dairy, meat, eggs, legumes
Form of riboflavin that is found in mi…
Free or protein bound
12 terms
Riboflavin
General Facts
Sources of Riboflavin
Free or Protein Bound Riboflavin
Coenzyme Forms
-light sensitive ... -heat stable... -reduced substantially w milli…
-milk & milk products (greatest contributor)... -meat, eggs, leg…
found in:... -milk... -eggs... -enriched breads/cereals
-Flavin Mononucleotide (FMN)... -Flavin Adenine Dinucleotide (FAD)
General Facts
-light sensitive ... -heat stable... -reduced substantially w milli…
Sources of Riboflavin
-milk & milk products (greatest contributor)... -meat, eggs, leg…
17 terms
riboflavin
riboflavin
appetite, growth, feed, lesions, nervo…
chicks
hens
functions as a coenzyme in several enzyme systems. is essenti…
riboflavin deficiency: general signs include loss of __, impa…
riboflavin deficiency: curled toe paralysis. resulting from m…
riboflavin deficiency: decreased egg production and decreased…
riboflavin
functions as a coenzyme in several enzyme systems. is essenti…
appetite, growth, feed, lesions, nervo…
riboflavin deficiency: general signs include loss of __, impa…
7 terms
Riboflavin
B2, FAD, fAD2, FMN, ETC
energy metabolism, redox reactions, co…
enriched and whole grains, milk and da…
ariboflavinosis, preeclampsia, affects…
other names for Riboflavin
function of riboflavin
food sources of riboflavin
deficiency of riboflavin
B2, FAD, fAD2, FMN, ETC
other names for Riboflavin
energy metabolism, redox reactions, co…
function of riboflavin
Riboflavin
Riboflavin
Riboflavin function
Recommended intake of riboflavin
Food sources of riboflavin
vitamin B2; Sensitive to light which is why milk (important s…
Coenzyme in various reactions involving metabolism and energy…
RDA is 1.3 mg for males and 1.1 for females; Increased during…
Widely available in animal and plant foods; Dairy, meat, and…
Riboflavin
vitamin B2; Sensitive to light which is why milk (important s…
Riboflavin function
Coenzyme in various reactions involving metabolism and energy…
Riboflavin
Anchoring Concepts
Anchoring Concepts
Anchoring Concepts
Nomenclature & Chemical Forms
Trivial designation of a specific compound... Riboflavin = vitam…
Functions as coenzyme in oxidation-reduction rxns as a compon…
Deficiencies of riboflavin are manifested chiefly as dermal &…
Flavin linked to a ribitol side chain... ribitol: 5C sugar alco…
Anchoring Concepts
Trivial designation of a specific compound... Riboflavin = vitam…
Anchoring Concepts
Functions as coenzyme in oxidation-reduction rxns as a compon…
43 terms
riboflavin
b2
vitamin G, vitamin H
Gyorgi
alkali and acid
b vitamin number of riboflavin
first names for riboflavin
discovered riboflavin
what riboflavin and its coenzymes are sensitive to in the pre…
b2
b vitamin number of riboflavin
vitamin G, vitamin H
first names for riboflavin
riboflavin
chemical form of riboflavin
function of riboflavin
symptoms/diseases of riboflavin
groups at risk for deficiency of ribof…
FAD
electron carrier
glossitis, cheilosis
alcoholics
chemical form of riboflavin
FAD
function of riboflavin
electron carrier
7 terms
Riboflavin
Functions
History
RDA
Sources
Convert glucose productions ... Aids in nervous system function…
1872 : Observed pigment in milk
0.3-1.6mg
Rice, Tomatoes, Squash... Beef liver, Turkey, Lamb
Functions
Convert glucose productions ... Aids in nervous system function…
History
1872 : Observed pigment in milk
Riboflavin
alternate name
significant food sources
RDA
major functions
vitamin B2
diary products, whole and enriched grains, dark green vegetab…
1.3 mg/ day
coenzyme (FAD) and (FMN) in energy and lipid metabolism
alternate name
vitamin B2
significant food sources
diary products, whole and enriched grains, dark green vegetab…
7 terms
Riboflavin
Food sources
Photosensitive
Functions
Deficiency
Cereals, nuts, milk, eggs, green leafy vegetables, lean meat
destroyed by light
1. metabolism of CHO, proteins, and fats... 2. antioxidant prote…
Ariboflavinosis... uncommon
Food sources
Cereals, nuts, milk, eggs, green leafy vegetables, lean meat
Photosensitive
destroyed by light
Riboflavin
structure
coenzymes
deficiency
ariboflavinosis
- three ringed structure with a monosaccharide like compound…
FAD and FMN: take or give away electrons ... - citric acid cycle…
- occurs when consuming 1/4 the RDA for several months... - Arib…
- glossitis: inflammation of the tongue... - angular cheilosis:…
structure
- three ringed structure with a monosaccharide like compound…
coenzymes
FAD and FMN: take or give away electrons ... - citric acid cycle…
19 terms
Riboflavin
thought he found the vital substance t…
Discovery of riboflavin originally cal…
RDA
vitamin form
Casimir Funk
vitamin G
Males 1.3 mg/day... Females: 1.1 mg/day
Riboflavin
thought he found the vital substance t…
Casimir Funk
Discovery of riboflavin originally cal…
vitamin G
Riboflavin
What was riboflavin originally called…
Where does the Ribo and Flavin come fr…
What are the coenzyme deivatives of Ri…
True or False: Riboflavin is required…
Vitamin G... Vitmain B2
"Ribo"- has a ribose-like side chain... "Flavus"- means yellow i…
-FMN (Flavin mononucleotide)... -FAD (Flavin adenine dinucleotide)
TRUE
What was riboflavin originally called…
Vitamin G... Vitmain B2
Where does the Ribo and Flavin come fr…
"Ribo"- has a ribose-like side chain... "Flavus"- means yellow i…
7 terms
Riboflavin
in the diet
active coenzymes
FAD Function
FAD and FMN Function
milk best source(killed by light opaque milk carton), others…
flavin adenine dinucleotide (FAD) and flavin mononucleotide (…
in the citric acid cycle and important for the breakdown of f…
as electron carriers in the electron transport chain ... theref…
in the diet
milk best source(killed by light opaque milk carton), others…
active coenzymes
flavin adenine dinucleotide (FAD) and flavin mononucleotide (…
7 terms
Riboflavin
Riboflavin
is it a fat-soluble or a water soluble…
What is the main role for the body?
Name 4-5 food sources
...
water soluble
helps to break down carbohydrates, proteins, and fats. It als…
cheese, almonds, beef/lamb, fish, hard boiled eggs
Riboflavin
...
is it a fat-soluble or a water soluble…
water soluble
Riboflavin
Riboflavin
Structure
Flavin Mononucleotide
Favin Adenine Dinucleotide
Vitamin B2 ... Water soluble
Flavin + Ribitol ... -Flavin ring structures... -Ribitol; lots of a…
Coenzyme Form of Riboflavin ... -Flavin rings + Ribitol has a P…
Coenzyme form ... 2 phosphates attached
Riboflavin
Vitamin B2 ... Water soluble
Structure
Flavin + Ribitol ... -Flavin ring structures... -Ribitol; lots of a…
Riboflavin
Structure
Forms
functions
enzymes that require FMN and FAD
ribitol sugar alcohol moiety attached to isoalloxazine ring
flavin adenine dinucleotide (FAD) ... flavin mononucleotide (FMN)
cofactor in oxidation-reduction reactions... dehydrogenase - pyr…
flavoprotein - oxidizing agents ... FAD becomes FADH2 ... flavoprot…
Structure
ribitol sugar alcohol moiety attached to isoalloxazine ring
Forms
flavin adenine dinucleotide (FAD) ... flavin mononucleotide (FMN)
Riboflavin
Riboflavin
Active Form
Active Forms
Cooking with riboflavin
Tricycle molecule
Phosphorylated to FMN
Adenylated to FAD
-light sensitive... -heat stable... -reduced substantially with mil…
Riboflavin
Tricycle molecule
Active Form
Phosphorylated to FMN
33 terms
Riboflavin
flavin=
2 forms of riboflavin
riboflavin is a component of ___ ____:…
flavin mononucleotide
yellow
reduced... oxidized
2 coenzymes ... FMN ... FAD
FMN
flavin=
yellow
2 forms of riboflavin
reduced... oxidized
34 terms
Riboflavin
riboflavin structure
components of riboflavin
coenzyme form(s)
FMN structure
flavin (rings)- gives the vitamin its yellow fluorescence ... ri…
flavin mononucleotide (FMN)... flavin adenine dinucleotide (FAD)
riboflavin structure
components of riboflavin
flavin (rings)- gives the vitamin its yellow fluorescence ... ri…
13 terms
Riboflavin
Coenzyme forms of riboflavin
Dietary riboflavin (FAD and FMN) must…
Energy metabolism functions of ribofla…
Beta oxidation functions of riboflavin
FMN (Flavin Mono-nucleopeptide)... Riboflavin + Phosphate... ETC... FA…
just know it
PDH complex... Alpha KGDH complex... Succinate dehydrogenase (TCA)…
Fatty acyl CoA dehydrogenase
Coenzyme forms of riboflavin
FMN (Flavin Mono-nucleopeptide)... Riboflavin + Phosphate... ETC... FA…
Dietary riboflavin (FAD and FMN) must…
just know it
8 terms
Riboflavin
Riboflavin serves as a coenzyme in wha…
What are the conenzyme forms of ribofl…
During energy metabolism, FAD does what?
What happens when riboflavin deficienc…
Energy metabolsim
Flavin mononucleotide (FMN)... Flavin adenine dinucleotide (FAD)
Picks up two hydrogen atoms from the TCA cycle and delivers t…
Inflammation of the membranes of the mouth, skin, eyes, and G…
Riboflavin serves as a coenzyme in wha…
Energy metabolsim
What are the conenzyme forms of ribofl…
Flavin mononucleotide (FMN)... Flavin adenine dinucleotide (FAD)
Riboflavin
Riboflavin is a precursor for what 2 e…
enzymes that require FMN or FAD as cof…
food sources
free or protein bound riboflavin are f…
- flavin mononucleotide (FMN)... - flavin adenine dinucleotide (…
flavoproteins
majority of dietary riboflavin comes from milk and cheeses; o…
milk, enriched breads, cereals
Riboflavin is a precursor for what 2 e…
- flavin mononucleotide (FMN)... - flavin adenine dinucleotide (…
enzymes that require FMN or FAD as cof…
flavoproteins
29 terms
RIBOFLAVIN
What are the physiological flavocoenzy…
What enzymes are needed to breakdown r…
Name some uses of FAD or FMN:
What do flavoenzymes participate in?
-Flavin mononucleotide (FMN)... -Flavin adenine dinucleotide (FAD)
Flavokinase
-Fatty acid oxidation ... -Mitochondrial electron transfer for A…
Oxidation/reduction reactions and in energy production
What are the physiological flavocoenzy…
-Flavin mononucleotide (FMN)... -Flavin adenine dinucleotide (FAD)
What enzymes are needed to breakdown r…
Flavokinase
19 terms
Riboflavin
What is the chemical form of riboflavin?
What forms of riboflavin are active?
What does flavokinase do and how is it…
What is FAD synthetase/pyrophosphoryla…
Nitrogenous ringed structure with sugar alcohol side chain.
FAD and FMN.
It phosphorylates riboflavin to FMN to metabolically trap it…
It adenylate FMN to FAD.
What is the chemical form of riboflavin?
Nitrogenous ringed structure with sugar alcohol side chain.
What forms of riboflavin are active?
FAD and FMN.
13 terms
Riboflavin
Ribo part of riboflavin is what?
What are properties of riboflavin?
What is the functions of riboflavin?
What are riboflavin's two coenzyme for…
-Ribose... Structure of riboflavin: 5C aldose, polyhydroxyaldose…
-sensitive to UV light, sunlight, fluorescent lights... -excess…
-coenzyme (2 forms: FMN and FAD) involved in ox-redux reactions
1. flavin mononucleotide (FMN)... 2. flavin adenine dinucleotide…
Ribo part of riboflavin is what?
-Ribose... Structure of riboflavin: 5C aldose, polyhydroxyaldose…
What are properties of riboflavin?
-sensitive to UV light, sunlight, fluorescent lights... -excess…
23 terms
Riboflavin
What is riboflavin also known as?
What is the broad group of foods that…
What food group is the major contribut…
What US food products are enriched wit…
Vitamin B2
Foods of animal origin
milk and milk products
Refined grains
What is riboflavin also known as?
Vitamin B2
What is the broad group of foods that…
Foods of animal origin
Riboflavin
Other name for riboflavin?
RDA
Functions?
Sources?
Vitamin b2
1.3mg for men. 1.1mg for women.
Part of FMN and FAD. Energy metabolism.
Milk products. Grains. Liver.
Other name for riboflavin?
Vitamin b2
RDA
1.3mg for men. 1.1mg for women.
7 terms
Riboflavin
What is another name for riboflavin?
What are the two coenzyme forms of Rib…
What does riboflavin do?
What happens when you are deficient?
B2
FMN- flavin mononucleotide... FAD- flavin adenine dinucleotide
It is a coenzyme in many reactions including energy metabolism
no specific disease but there can be inflammation of membrane…
What is another name for riboflavin?
B2
What are the two coenzyme forms of Rib…
FMN- flavin mononucleotide... FAD- flavin adenine dinucleotide
17 terms
Riboflavin
what gives riboflvin (B2) its yellow c…
what can degrade riboflavin, and is it…
the primary cause of bright yellow uri…
what are the inactive forms of ribofla…
its 3 membered ring
yes it is, and it degrades with UV EXPOSE AS WELL ASproducts…
taking largee doses of vitmains
lumiflavin and lumichrome
what gives riboflvin (B2) its yellow c…
its 3 membered ring
what can degrade riboflavin, and is it…
yes it is, and it degrades with UV EXPOSE AS WELL ASproducts…
Riboflavin
What are the two coenzyme forms of rib…
How is riboflavin absorbed in the smal…
What kind of reactions to FAD and FMN…
food sources of riboflavin
flavin adenine dinucleotide (FAD), flavin mononucleotide (FMN)
active transport
oxidation-reduction reactions; specifically, beta-oxidation a…
enriched and fortified foods, green-yellow vegetables, meat,…
What are the two coenzyme forms of rib…
flavin adenine dinucleotide (FAD), flavin mononucleotide (FMN)
How is riboflavin absorbed in the smal…
active transport
20 terms
Riboflavin
Makes your urine...
Riboflavin structure
Flavokinase
FAD synthetase
Fluorescent YELLOW!
Ribose sugar tail... Flavin rings... Add ADP to get FAD
Flavin -> FMN (adding phosphate group)
FMN -> FAD (donate entire AMP group)
Makes your urine...
Fluorescent YELLOW!
Riboflavin structure
Ribose sugar tail... Flavin rings... Add ADP to get FAD
9 terms
Riboflavin
which B vitamin is riboflavin known as?
what are some food sources of riboflav…
how does riboflavin participate in ene…
what are the 2 coenzyme forms of ribof…
vitamin B2
milk and yogurt
oxidation-reduction reactions
FMN and FAD
which B vitamin is riboflavin known as?
vitamin B2
what are some food sources of riboflav…
milk and yogurt
riboflavin
what are riboflavin's coenzymes?
dietary sources of riboflavin
which enzyme converts FAD to FMN?
which enzyme converts FMN to riboflavin?
flavin mononucleotide (FMN), one P added... flavin adenine dinuc…
dairy products (vit form), whole enriched fortified grains, m…
pyrophosphatases
phosphatases
what are riboflavin's coenzymes?
flavin mononucleotide (FMN), one P added... flavin adenine dinuc…
dietary sources of riboflavin
dairy products (vit form), whole enriched fortified grains, m…
24 terms
Riboflavin
dietary sources of riboflavin... found as?
describe absorption of riboflavin
describe conversion of FAD to riboflav…
what decreases riboflavin bioavailabil…
milk... meat ... legumes... FMN/FAD
FAD/FMN are freed from proteins via HCl/intestinal enzymes in…
FAD > FMN via FAD pyrophosphatase... (reversed via FAD synthetas…
fiber, phytates... divalent metals > chelate riboflavin to inhi…
dietary sources of riboflavin... found as?
milk... meat ... legumes... FMN/FAD
describe absorption of riboflavin
FAD/FMN are freed from proteins via HCl/intestinal enzymes in…
11 terms
Riboflavin
Structural characteristics of Riboflavin
Coenzyme form of Riboflavin
Flavin dependent enzymes
Metabolic Role of FMD and FAD
Water soluble; easily excreted and lost in urine creating a y…
FMD (nucleotide) and FAD (dinucleotide); Prosthetic group
Flavoproteins; e.g., amino acid oxides, xanthine oxidase, glu…
Accepts and donates hydrogens (1-2) crucial in conversion of…
Structural characteristics of Riboflavin
Water soluble; easily excreted and lost in urine creating a y…
Coenzyme form of Riboflavin
FMD (nucleotide) and FAD (dinucleotide); Prosthetic group
16 terms
Riboflavin
riboflavin in general
functions of riboflavin
central nervous system
migraines
-B2... -central component of cofactors FAD and FMN... -composed of…
-FAD and FMN are electron carriers involved energy production…
-brain and spinal cord... -complex of nerve tissues that control…
low levels of riboflavin is thought to cause migraines
riboflavin in general
-B2... -central component of cofactors FAD and FMN... -composed of…
functions of riboflavin
-FAD and FMN are electron carriers involved energy production…
30 terms
Riboflavin
Casimir Fink
Vitamin G
Riboflavin RDA
Riboflavin Foods
thought he found preventative vitamine of beriberi in 1912... di…
first name of riboflavin in 1917
1.3 mg for male... 1.1 mg for female
animal products... Found in the liver... Light sensitive
Casimir Fink
thought he found preventative vitamine of beriberi in 1912... di…
Vitamin G
first name of riboflavin in 1917
12 terms
Riboflavin
Compounds that make up riboflavin
Sources
Major forms
Enzyme catalyzing riboflavin to FMN
Flavin, ribitol
Dairy, eggs, meat, legumes, greens
FMN, FAD
Flavokinase
Compounds that make up riboflavin
Flavin, ribitol
Sources
Dairy, eggs, meat, legumes, greens
35 terms
Riboflavin
1912-Casimir Funk
1917
Riboflavin deficiency
Ribo
discovered thiamine, riboflavin, niacin and vitamin d
discovery of riboflavin originally called vitamin g
not associated with any disease
ribose like side chain
1912-Casimir Funk
discovered thiamine, riboflavin, niacin and vitamin d
1917
discovery of riboflavin originally called vitamin g
Riboflavin
whats its main function
what are its two forms
what are daily recommendations based on
whats the main source of riboflavn
serves as coenzyme in energy metabolism
flavin mononucleotide (FMN)... flavin adenine dinucleotide (FAD)
energy metabolism
milk and dairy products
whats its main function
serves as coenzyme in energy metabolism
what are its two forms
flavin mononucleotide (FMN)... flavin adenine dinucleotide (FAD)
riboflavin
component of what coenzymes?
structure
function of isoalloxazine ring
flavokinase
FAD and FMN --> involved in energy prod, cell growth and deve…
ribitol (sugar alcohol) and flavin molecule (isoalloxazine ri…
-makes it the most chemically versatile redox cofactor... -gets…
riboflavin --> FMN... ATP --> ADP w/ Mg
component of what coenzymes?
FAD and FMN --> involved in energy prod, cell growth and deve…
structure
ribitol (sugar alcohol) and flavin molecule (isoalloxazine ri…
11 terms
Riboflavin
Eigenschaften
Hauptquelle LM
Andere Namen
Struktur und chemische Bezeichnung
Hitzestabil in neutralen und sauren Lösungen ... Unbeständigkeit…
Beide Geschlechter: Milch, Käse und dann Alkoholfreie Getränk…
Vitamin B2... Lactoflavin
Isoalloxazinderivat + Ribitol (Alkoholderivat der Ribose) = R…
Eigenschaften
Hitzestabil in neutralen und sauren Lösungen ... Unbeständigkeit…
Hauptquelle LM
Beide Geschlechter: Milch, Käse und dann Alkoholfreie Getränk…
Riboflavin
Was ist Riboflavin?
Ist Riboflavin lichtempfindlich?
Welche Eigenschaften besitzt Riboflavin?
Welche Formen des Robiflavins kommen a…
Ribofalvin = Vitamin B2
Ja... Inaktivierung zu Lumiflavin und Lumichrom
- Hitzestabil in neutralen und sauren Lösungen... - Unbeständigk…
Flavinmononukleotid (FMN)... und... Flavin-adenin-dinukleotid (FAD)…
Was ist Riboflavin?
Ribofalvin = Vitamin B2
Ist Riboflavin lichtempfindlich?
Ja... Inaktivierung zu Lumiflavin und Lumichrom
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