Asked by Rachele Fleming on Jul 29, 2024
Verified
Which of the following is true of free radicals?
A) They are produced during metabolism by oxidation.
B) They elongate telomeres.
C) They loosen body proteins and tissues.
D) They accelerate the secretion of enzymes by the endocrine system.
Free Radicals
Unstable molecules that can damage cells, contributing to aging and diseases, like cancer. They are produced through normal metabolic processes or from external sources such as pollution.
Metabolism
The complex set of life-sustaining chemical reactions in organisms required for the maintenance of life, involving the conversion of food to energy, and the synthesis and breakdown of body chemicals.
- Absorb the principles of cellular and molecular theories related to the aging process, particularly emphasizing the roles played by free radicals, telomeres, and apoptosis.
Verified Answer
CG
Cristina GarciaJul 30, 2024
Final Answer :
A
Explanation :
Free radicals are produced during metabolism through oxidation processes. They are highly reactive molecules with unpaired electrons, which can cause damage to cells, proteins, and DNA, contributing to aging and various diseases. Choices B, C, and D do not accurately describe the effects or functions of free radicals.
Learning Objectives
- Absorb the principles of cellular and molecular theories related to the aging process, particularly emphasizing the roles played by free radicals, telomeres, and apoptosis.