question help from I-E

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iron-porphyrin protein structures are components of: a) myoglobin, b) hemoglobin, c) cytochromes, d) B vitamins.
i am confused between options c&d. whats ur opnions. provide some details please. coz both are hemoproteins. Thanks for your time.
 
iron-porphyrin protein structures are components of: a) myoglobin, b) hemoglobin, c) cytochromes, d) B vitamins.
i am confused between options c&d. whats ur opnions. provide some details please. coz both are hemoproteins. Thanks for your time.

well ...Iron porphyrin i.e Fe + porphyrin ring is present in 1st 3 options ...

Vit B contain Corrin ring ( resemble porphyrin but has different no of carbons... if porphyrin is written in any book than its ok but vitamin B has Cobalt in center of the ring not Fe ..thats the major difference so option D does not have Fe- Porphyrin
 
well ...Iron porphyrin i.e Fe + porphyrin ring is present in 1st 3 options ...

Vit B contain Corrin ring ( resemble porphyrin but has different no of carbons... if porphyrin is written in any book than its ok but vitamin B has Cobalt in center of the ring not Fe ..thats the major difference so option D does not have Fe- Porphyrin

I had come across the same kinda question... It had both options cytochrome and hemoglobin... What shud we choose then...😕 and it was not a multiple correct answer question for sure...

Another question I have...
What wud maxillary first n second premolars occlude with? One tooth in the mandibular arch or two? Please help.

Also, why does hypoparathyroidism cause enamel hypo plasia? Decks says hypoparathyroidism causes enamel hypo plasia.....m confused again...
 
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I had come across the same kinda question... It had both options cytochrome and hemoglobin... What shud we choose then...😕 and it was not a multiple correct answer question for sure...

Another question I have...
What wud maxillary first n second premolars occlude with? One tooth in the mandibular arch or two? Please help.

Also, why does hypoparathyroidism cause enamel hypo plasia? Decks says hypoparathyroidism causes enamel hypo plasia.....m confused again...

Whats the exact question actually ?
there might be some glitch about cytochrome or Hb

2. (source ...google )
Environmental type enamel hypoplasia. This is caused by the environmental factors that causes damage to the enamel cells.

a. Nutritional deficiency, includes vitamins A, C, and D.

b. Exanthematous diseases (skin diseases) such as measles, chickenpox, scarlet fever etc.

c. Congenital syphilis.

d. Hypocalcemia. ( Hypoparathyroidism cause hypocalcemia ) ...Thus its a kind an indirect question

e. During birth, such as birth injury, prematurity, Rh hemolytic disease etc.

f. Local infection or trauma.

g. Ingestion of chemicals such as fluoride etc.

3 .mand central incisor and max 3rd molars are the only teeth which occlude with 1 opposing tooth
( its always easy to answer these question with the help of diagrams... learn to make angles class 1 diagram for entire one side of the arch.... u can answer so many question with the help of that
 
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