Vitamin B

Question 1

Vitamin B is essential for?

Answer 1

Energy production
Maintaining a healthy CNS
Forming of RBC
Support immune system

Question 2

How many types of vitamin B are there

Answer 2

8 types of vitamin B

Question 3

Vitamin B1 aka?

Answer 3

Thiamine

Question 4

Thiamine is important for what metabolism

Answer 4

Glucose metabolism

Question 5

What organs are affected when there is a thiamine deficiency?

Answer 5

Heart and brain

Question 6

Cofactor for several enzymes involved in glucose metabolism

Answer 6

Thiamin diphosphate

Question 7

A vitamin b1 that has a distinct property at the neuronal membrane

Answer 7

Thiamine triphosphate

Question 8

Where is thamine absorbed?

Answer 8

Duodenum and proximal jejunum

Question 9

Metabolic function of thamine

Answer 9

Metabolism of carbohydrates

Question 10

A disease if an individual has a Thiamine defciency

Answer 10

Beriberi

Question 11

Vitamin b2 aka

Answer 11

Riboflavin

Question 12

Coenzyme in riboflavin that is involved in the metabolic pathway of carbohydrates, lipid and protein metabolism

Answer 12

Vitamin b2

Question 13

A vitamin that aids in the transport of electrons in electron transport chain

Answer 13

Flavoproteins

Question 14

Rich sources or riboflavin

Answer 14

Eggs, meat, fish,dairy products

Question 15

Riboflavin is widely used as?

Answer 15

Food color

Question 16

Photolysis of riboflavin leads to the formation of?

Answer 16

Lumiflavin and lumichrome

Question 17

Limuflavin and lumichrome catalyze oxidation of?

Answer 17

Lipids and methionine

Question 18

Responsible of hydrolyzing the coenzymes of riboflavin

Answer 18

Intestinal phosphatases

Question 19

Riboflavin exists in the bloodstream in different forms such as:

Answer 19

50% free riboflavin
44% exists as flavin adenine dinucleotide (FAD)

Question 20

Riboflavin deficiency is aka?

Answer 20

Ariboflavinosis

Question 21

Signs and symptoms of ariboflavinosis

Answer 21

Sikn issue
Inflammation and ores in the mouth
Sore throat
Eye irritation

Question 22

Requirement of riboflavin

Answer 22

1.3mg in males
1.1mg in females

Question 23

Vitamin b3 is aka

Answer 23

Niacin

Question 24

A unique nutrient that can be synthesized in he body from the essential amino acid tryptophan

Answer 24

Niacin (vit b3)

Question 25

Two components of niacin

Answer 25

Nicotinic acid Nicotinamide

Question 26

Main dietary source of niacin

Answer 26

Protein rich food

Question 27

Why does coffee consumption can contribute to the niacin intake

Answer 27

Because coffee beans has trigonelline

Question 28

A disease of tryptophan and niacin defieny

Answer 28

Pellagra

Question 29

Average requirement of niacin is?

Answer 29

1.3mg

Question 30

Vitamin b5 aka

Answer 30

Pantothenic acid

Question 31

This vitamin has a central role in energy-yielding metabolism as the functional moiety of coenzyme A and in the biosynthesis of FA as the prosthetic group of acyl carrier protein

Answer 31

Pantothenic acid (vitamin B5)

Question 32

Vitamin b6 is presented as___ in plant foods

Answer 32

Glucosides

Question 33

Active form of vitamin b6

Answer 33

Pyridoxal phosphate

Question 34

What are the vitamin b6 that are dephosphorylated thru alkaline phosphatase

Answer 34

Pyridoxal Pyridoxamine Pyridoxine

Question 35

Major role of vitamin B6

Answer 35

Amino acid metabolism

Question 36

Viatmin b12 aka

Answer 36

Cobalamins

Question 37

The first form in which vitamin b12 is isolated

Answer 37

Cyanocobalamin

Question 38

Vitamin b12 binds to what protein in the saliva

Answer 38

Cobalophilin

Question 39

What happens to cobalophilin in the duodenum?

Answer 39

It is hydrolyzed and bind to intrinsic factor

Question 40

In the ileum, vitamin b12 is absorbed through?

Answer 40

Intrinsic factor

Question 41

in the plasma, vitamin b12 circulates and bounds to ___ it is required for tissue uptake of the vitamin

Answer 41

Transcobalamin I

Question 42

In the plasma if it binds to this enzyme(?) it is gonna be a stored form of the vitamin

Answer 42

Transcobalamin II

Question 43

Transcobalamin III is rapidly by?

Answer 43

Liver

Question 44

How many ug o vitb12 is secreted in the bile each day

Answer 44

3-8 ug (2.25-6mol)

Question 45

Three vitamin b12 dependent enzymes in human tissue

Answer 45

1. Methylmalonyl-CoA mutase 2. Leucine aminoutase 3. Emthionine synthase

Question 46

Vitamin b12 deficiency

Answer 46

Pernicious anemia

Question 47

Coenzyme for the synthesis of methionine and for making RNA and DNA

Answer 47

Folate

Question 48

Folate deficiency can cause

Answer 48

Megaloblastic anemia

Question 49

Mothers who were folate deficiency during pregnancy has a higher what?

Answer 49

Higher risk of neural tube birth defects

Question 50

Folate deficiency can develop ___ which can lead to physical and mental disabilities

Answer 50

Spina bifida

Question 51

Vitmain H aka

Answer 51

Biotin

Question 52

A protien in egg white: binds biotin extremely tight therefore makes it unavailable

Answer 52

Avidin

Question 53

Coenzyme of glucose metabolism in biotin

Answer 53

Pyruvate carboxylase