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PPCHEM Q4 M10 FINALS

Authored by Zyra Macatuno

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Professional Development

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PPCHEM Q4 M10 FINALS
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The vitamin originally termed a “vital amine” but later found not to contain nitrogen includes which of the following?

Thiamine

Riboflavin

Cholecalciferol

Pyridoxine

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fat-soluble vitamins are stored predominantly in which body compartments, contributing to their potential toxicity upon excessive intake?

Blood plasma and cerebrospinal fluid

Lysosomes within cells

Adipose tissue and liver fat stores

Extracellular matrices

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which vitamin is synthesized endogenously in human skin under UV radiation and exists as ergocalciferol in plants and cholecalciferol in animals?

Vitamin A

Vitamin C

Vitamin D

Vitamin E

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pellagra, characterized by dermatitis, diarrhea, and dementia, results primarily from the deficiency of which vitamin?

Niacin

Riboflavin

Thiamine

Pyridoxine

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The absorption of vitamin B12 requires intrinsic factor secreted by which organ?

Liver

Pancreas

Stomach

Small intestine

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chronic high-dose intake of which vitamin has been clinically linked to irreversible sensory neuropathy?

Pyridoxine

Biotin

Thiamine

Folic acid

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Thiamine pyrophosphate , the active coenzyme form of vitamin B1, primarily functions in which key metabolic process?

Fatty acid β-oxidation

Glycolysis and the citric acid cycle as a coenzyme for oxidative decarboxylation

DNA replication

Electron transport chain

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