Question

Vitamin D synthesis in the skin is affected by all of the followng EXCEPT Multiple Choice Skipped use of sunscreen. skin color geographic location All of these factors can affect vitamin D synthesis.
Individuals at increased risk of vitamin D deficiency include all of the following EXCEPT 45 Multiple Choice Sklpped elderly adults living in nursing homes dark-skinned children with limited outdoor activity. young adults who eat high amounts of fatty fish and fish olls individuals with diseases of fat-malabsorption.
Excess intake of vitamin D Multiple Choice is readily excreted can cause hypercalcemia. can cause rickets. can cause osteomalacia
Vitamin E is a family of compounds comprised of the 47 Multiple Choice 4 tocopherols 4 tocotrienols. 4 triglycerides 4 tocopherols and 4 tocotr ienols
Vitamin E functions to Multiple Choice protect cell membranes from destruction by various reducing agents. protect phospholipids in cell membranes from damage by free radicals. accept electrons, thus neutralizing the action of free radicals. All of these choices are accurate
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Dear Student ,

Please do mention the particular question number from next time by following the HOMEWORKLIB RULES.

Coming to the answers

44) Yes vitamin D synthesis depends on many factors like skin colour, geographical location, sunscreen use, diet, age, etc

So Ans is ' D'

45)Ans is 'C' because fatty fish and fish oils are rich source of vit D and omega 3 fatty acids.

46)B, Excess intake of vitamin D causes hypercalcemia, which is toxic.

47)D,Vitamin E comprises of 4 tocopherols and 4 tocotrienols.

48)And is B.

Because regarding option A, vitamin E protects cell membrane from oxidizing by acting as antioxidant.

Regarding option C, vitamin E donates electrons and neutralizes free radicals.

Hope you are clear......

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