Nutrient Synthesis and Dietary Requirements Quiz

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What is the primary symptom associated with acute gastrointestinal upset in cases of copper toxicity?

Abdominal pain

Diarrhea

Constipation

Vomiting (correct)

Which of the following is a potential effect of long-term copper toxicity on the neurological system?

Improved cognitive function

Increased motor coordination

Deterioration of neurological processes (correct)

Enhanced sensory perception

What is a potential effect of copper toxicity on the musculoskeletal system?

Decreased bone density

Weakened muscle strength

Increased joint flexibility

Calcified muscle insertions and exotosis (correct)

Which of the following is a recognized symptom of Wilson's disease, a condition associated with copper toxicity?

Copper deposits in the cornea Signup and view all the answers

What is a potential effect of severe copper toxicity from contamination?

Severe psychiatric and neurologic disorders Signup and view all the answers

What is the main purpose of enzymes in the body?

To speed up chemical reactions without changing themselves Signup and view all the answers

Which of the following is NOT a characteristic of hormones?

All hormones are protein in nature Signup and view all the answers

What is the role of cofactors in enzyme systems?

They are sometimes called activators or coenzymes Signup and view all the answers

What is the key principle highlighted by the term 'individualization' in diet planning?

Variety of food choices Signup and view all the answers

Which of the following is NOT a characteristic of natural foods?

They contain all the necessary nutrients Signup and view all the answers

What is the relationship between enzymes and metabolic reactions in the body?

Biocatalysts like enzymes are responsible for most chemical reactions in the body Signup and view all the answers

What is a common sign of protein-calorie deficiency?

Muscle wasting and weakness Signup and view all the answers

Which vitamin deficiency is most likely to cause corkscrew hairs and coiled hair?

Biotin Signup and view all the answers

Which nutrient deficiency is associated with easy bruising and purpura?

Vitamin C deficiency Signup and view all the answers

What is a common sign of riboflavin (vitamin B2) deficiency?

Photophobia Signup and view all the answers

Which nutrient deficiency is associated with impaired visual recovery after glare?

Vitamin A deficiency Signup and view all the answers

What is a common sign of zinc deficiency?

Scrotal dermatosis Signup and view all the answers

Which of the following is considered a macronutrient?

Protein Signup and view all the answers

Why is choline considered an essential nutrient?

It cannot be synthesized by the body in adequate amounts Signup and view all the answers

Which statement about conditionally essential nutrients is true?

They are required in the diet only during stress or illness Signup and view all the answers

Which factor does NOT affect the amount of nutrients an individual needs?

Socioeconomic status Signup and view all the answers

What is the criterion for classifying a nutrient as a macronutrient?

Its concentration in the body is above 50 parts per million Signup and view all the answers

Which of the following statements about nutrients is false?

Micronutrients include vitamins and major minerals Signup and view all the answers

Which of the following conditions may lead to nutritional deficiency if nutrient intake is not increased?

All of the above Signup and view all the answers

What does the text suggest about the lifestyle of a heavy smoker?

They need more vitamin C than a non-smoker Signup and view all the answers

Which of the following factors is NOT mentioned in the text as affecting nutrient needs?

Age Signup and view all the answers

Which nutrient needs may be increased for an extremely active athlete?

Both A and B Signup and view all the answers

What is the term used in the text to refer to the study of how genetics affects nutrient needs?

Nutrigenomics Signup and view all the answers