How can we help?

You can also find more resources in our Help Center.

Study sets matching "riboflavin"

Study sets
Classes
Users

Study sets matching "riboflavin"

33 terms
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?
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…
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
19 terms
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
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…
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
9 terms
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…
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…
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
35 terms
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…
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
21 terms
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…
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
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
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
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
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
18 terms
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)
14 terms
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
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)
6 terms
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)
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…
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
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…
32 terms
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
21 terms
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
8 terms
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.
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
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…
21 terms
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
8 terms
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
12 terms
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 and Niacin
What are the two coenzymes of riboflav…
What are two sources of riboflavin?
What destroys riboflavin?
What's the current average intake of r…
FMN and FAD
Milk and grain products
Exposure to UV light
Exceeds RDA recommendations ... No UL
What are the two coenzymes of riboflav…
FMN and FAD
What are two sources of riboflavin?
Milk and grain products
2. 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…
-FMN (Flavin mononucleotide)-1 phosphate group... -FAD (Flavin a…
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
-FMN (Flavin mononucleotide)-1 phosphate group... -FAD (Flavin a…
79 terms
3 Riboflavin
Vitamin B2 contained several factors
Vitamin B2 characteristics
Kaiser WIlhelm Institute (1933)
Isolated the fluorescence factor from…
- Niacin... - Riboflavin... - Others
- Heat soluble vs heat labile... - Water soluble... - Rat growth fa…
- Kuhk, Gyorgy, Wagner-Juregg... - Isolated the fluorescence fac…
- Called it ovoflavin (34,000 egg whites - 1 gram)... - Called l…
Vitamin B2 contained several factors
- Niacin... - Riboflavin... - Others
Vitamin B2 characteristics
- Heat soluble vs heat labile... - Water soluble... - Rat growth fa…
41 terms
niacin and riboflavin
energy releasing B vitamins
hematopoietic B vitamins
other B vitamins functions
niacin structures
-thiamin... -riboflavin... -niacin... -panthothenic acid... -biotin... -B6
-folate... -B12... -B6... -panthothenic acid
-B6... -thiamin... -folate ... - B12... -niacin
-nicotinic acid... -nicotinamide
energy releasing B vitamins
-thiamin... -riboflavin... -niacin... -panthothenic acid... -biotin... -B6
hematopoietic B vitamins
-folate... -B12... -B6... -panthothenic acid
20 terms
thiamin & riboflavin
thiamin food sources
phosphorylated forms
thiamine digestion
free thiamin
meats (especially pork)... legumes and grain products... -plants: e…
-95% of thiamin diphosphate (TDP) or (TPP)... -5% of thiamin mon…
intestinal phosphatases hydrolyze TDP and TTP to free thiamin…
absorbed into enterocytes by two transporters on the apical m…
thiamin food sources
meats (especially pork)... legumes and grain products... -plants: e…
phosphorylated forms
-95% of thiamin diphosphate (TDP) or (TPP)... -5% of thiamin mon…
12 terms
19b. 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
69 terms
Riboflavin and Niacin
Riboflavin
Kuhn
1936
ribitol side chain attached to flavin
vitamin B2
riboflavin synthesized and named in 1935 by
riboflavin designated B2 in ______
structure of riboflavin
Riboflavin
vitamin B2
Kuhn
riboflavin synthesized and named in 1935 by
23 terms
Thiamin, Riboflavin
B1
Urine
Jejunum (passive diffusion)
Carbohydrate metabolism, muscle coordi…
which B complex is thiamin?
how is excess thiamin excreted?
which part of the small intestine is thiamin absorbed in?
what are the functions of thiamin?
B1
which B complex is thiamin?
Urine
how is excess thiamin excreted?
10 terms
Niacin and Riboflavin
NAD+ functions
NADH functions
NADP functions
NADPH functions
oxidative reactions
transfers electrons in ETC
Hexose monophosphate shunt and malate shuttle
reducing agent in biosynthetic pathways... - Fatty acid syn... - ch…
NAD+ functions
oxidative reactions
NADH functions
transfers electrons in ETC
1 of 10