25 Questions
Which process involves breaking down complex molecules like carbohydrates, fats, and proteins into simpler compounds to release energy for cellular activities?
Catabolism
Which process synthesizes complex molecules from simpler compounds requiring energy input?
Anabolism
What is the main objective of the body's metabolism?
To maintain homeostasis
What factors regulate metabolism?
Various factors including hormones, enzymes, and genetic factors
What can variations in metabolic rates affect?
Weight management and energy levels
What are the two main processes of metabolism?
Catabolism and Synthesis
What is the role of anabolism in metabolism?
To synthesize complex molecules for growth and repair
Why is weight loss challenging according to the text?
Due to starvation survival mechanisms built into DNA
Which hormone is responsible for increasing hunger and cravings triggered by survival mechanisms?
Ghrelin
What happens to willpower and impulsivity when hunger increases?
They decrease
Which hormone is associated with reward-seeking behavior due to heightened dopamine sensitivity?
Dopamine
According to the experiment comparing anorexic women to healthy women, what did higher ghrelin levels correlate with?
Immediate rewards
What happens to previously obese people in terms of calorie burning and fat accumulation?
They burn fewer calories and accumulate more fat
What happens to fat cells during weight loss?
They shrink but remain primed to store more fat
What hormone stimulates the replication of fat cell precursors that eventually become fat cells?
Neuropeptide Y
What is the consequence of losing lean muscle tissue during weight loss?
Feeling physically weak
Which macronutrient is considered the most important for dieting and muscle building?
Protein
Which of the following is NOT mentioned as a self-defense mechanism that can hinder long-term weight loss?
Natural metabolism
Why do our brains find salt, sugar, and fat delicious?
They were scarce in prehistoric times
What did a study with rats suggest about the addictive nature of sweet taste?
Rats preferred sweeteners over cocaine
What can high fructose corn syrup do to satiety and lead to?
Reduce satiety and cause overeating
What happens to leptin levels when you lose fat?
Leptin levels decrease
What happens to testosterone levels during extreme dieting phases?
Testosterone levels drop by 70-to-80%
What happens to basal metabolic rate when thyroid activity lowers?
Basal metabolic rate plummets
What effect does metabolic adaptation have on non-exercise activity thermogenesis (NEAT)?
NEAT slows down
Test your knowledge of metabolism and its processes with this quiz! Explore catabolism, an essential part of metabolism that breaks down complex molecules, as well as other biochemical reactions that contribute to maintaining life. Challenge yourself to understand the intricacies of energy production and molecule synthesis within living organisms.
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