28 Questions
What is the primary symptom associated with acute gastrointestinal upset in cases of copper toxicity?
Vomiting
Which of the following is a potential effect of long-term copper toxicity on the neurological system?
Deterioration of neurological processes
What is a potential effect of copper toxicity on the musculoskeletal system?
Calcified muscle insertions and exotosis
Which of the following is a recognized symptom of Wilson's disease, a condition associated with copper toxicity?
Copper deposits in the cornea
What is a potential effect of severe copper toxicity from contamination?
Severe psychiatric and neurologic disorders
What is the main purpose of enzymes in the body?
To speed up chemical reactions without changing themselves
Which of the following is NOT a characteristic of hormones?
All hormones are protein in nature
What is the role of cofactors in enzyme systems?
They are sometimes called activators or coenzymes
What is the key principle highlighted by the term 'individualization' in diet planning?
Variety of food choices
Which of the following is NOT a characteristic of natural foods?
They contain all the necessary nutrients
What is the relationship between enzymes and metabolic reactions in the body?
Biocatalysts like enzymes are responsible for most chemical reactions in the body
What is a common sign of protein-calorie deficiency?
Muscle wasting and weakness
Which vitamin deficiency is most likely to cause corkscrew hairs and coiled hair?
Biotin
Which nutrient deficiency is associated with easy bruising and purpura?
Vitamin C deficiency
What is a common sign of riboflavin (vitamin B2) deficiency?
Photophobia
Which nutrient deficiency is associated with impaired visual recovery after glare?
Vitamin A deficiency
What is a common sign of zinc deficiency?
Scrotal dermatosis
Which of the following is considered a macronutrient?
Protein
Why is choline considered an essential nutrient?
It cannot be synthesized by the body in adequate amounts
Which statement about conditionally essential nutrients is true?
They are required in the diet only during stress or illness
Which factor does NOT affect the amount of nutrients an individual needs?
Socioeconomic status
What is the criterion for classifying a nutrient as a macronutrient?
Its concentration in the body is above 50 parts per million
Which of the following statements about nutrients is false?
Micronutrients include vitamins and major minerals
Which of the following conditions may lead to nutritional deficiency if nutrient intake is not increased?
All of the above
What does the text suggest about the lifestyle of a heavy smoker?
They need more vitamin C than a non-smoker
Which of the following factors is NOT mentioned in the text as affecting nutrient needs?
Age
Which nutrient needs may be increased for an extremely active athlete?
Both A and B
What is the term used in the text to refer to the study of how genetics affects nutrient needs?
Nutrigenomics
Test your knowledge on nutrients that can be synthesized by the body and those which need to be obtained from the diet. Explore essential nutrients like choline and understand when dietary supplements may be necessary.
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