Question

Part E- LO5, List and Describe Several Biological Influences on Body Weight Biological influences on body weight include genetics (such as the FTO-associated gene), metabolic factors (such as low levels of thyroid hormone), and physiologic factors (such as abnormal levels of vanious appetite-regulating hormones) From the list below, choose all the correct statements about biological influences on body weight. Select all that apply. Obesity is associated with lower amounts of UCP1 The set-point theory suggests that the body responds to both energy restriction and overeating with physiological changes to maintain its weight within a narrow range People who have the fat mass and obesity (FTO)-associated gene are generally heavier than those without the gene Genetic factors account for 20 to 50% of a person's BMI U The thrifty gene theory suggests that people with this gene universally expend more energy compared to those without the gene. Submit Request Answer

Answer 1

the correct statements are -

• Obesity is linked to a lower amount of UCP-1 as in the case of brown adipose tissue, UCP-1 is present and is anti-obesity whereas, in white adipose tissue, No UCP-1 is present but is linked to obesity.
• The set-point theory suggests that the body responds to both energy restriction and overeating with physiological changes to maintain its weight within a narrow range.

wrong statements are -

• Genetic factors account for 20 to 50% of a person’s BMI. The correct answer is genetic factors account for 55-80% of a person's BMI.
• People who have the fat mass and obesity (FTO)-associated genes are generally heavier than those without the gene. Two copies of the genes must be present otherwise the statement is wrong.
• The thrifty gene theory suggests that people with this gene universally expend more energy compared to those without the gene. expend less energy.