18 Questions
What is a major hallmark of the aging process?
Decreased regulatory capacity in the face of external stressors
What is the effect of vitamin E on life span?
It increases mean life span
What is the result of biochemical components of cells becoming altered with time?
Their molecular function is compromised
What is the primary outcome of the aging process?
Death
What is the effect of dietary restriction on maximal life span in animal studies?
It increases maximal life span
What is the name of the theory that explains the aging process at the molecular level?
The free radical theory of aging
What is the main function of vitamin E?
To break the chain of free radical reactions
What is a common food source of the flavonoid quercetin?
Onions
What is the primary action of flavonoids?
To act as antioxidants
What is a benefit of vitamin C?
To support immune system function
What is the function of vitamin A?
To support vision and immune system function
What is curcumin?
A yellow curry spice
What is the primary driving force behind molecular alterations in cells?
Free radicals in the form of highly reactive oxygen and nitrogen compounds
What is the correlation between species longevity and repair mechanisms?
Species longevity is directly related to the efficiency of its repair mechanisms
What is the expected outcome of increasing protection against free radicals or repairing free radical damage?
Positive effects on functionality and longevity
Which of the following vitamins is not considered an antioxidant vitamin?
Vitamin D
What is the primary goal of feeding vitamins with antioxidant properties?
To increase protection against free radicals
Which of the following is a consequence of altered tissue function?
Aging and death of the whole organism
Learn about the biological changes during aging, the benefits of natural food components, and nutritional interventions based on the free radical theory of aging.
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