BIOL 373L UNIT 7A AND 7B METABOLISM AND
ENERGY BALANCE QUESTIONS WITH VERIFIED
ACCURATE ANSWERS
Homeostatic eating - Answers - eating when energy fuels are depleted
Non-homeostatic eating - Answers - eating in the complete absence of hunger
Two centres in hypothalamus controlling hunger are: - Answers - 'hunger/feeding' and
'satiety'
Glucostatic theory states that - Answers - intake is regulated by glucose levels
Lipostatic theory states that - Answers - fat stores signal to brain which modulates
eating behaviour
What is the protein hormone synthesized in white adipose tissue? - Answers - Leptin
Increased ghrelin leads to - Answers - increased appetite
Increased stretch of stomach leads to - Answers - increased acid and decreased
appetite
__ CCK in response to fat/protein in small intestine lumen causes __ in appetite -
Answers - increase, decrease
What is the key neurotransmitter in stimulation in appetite? - Answers - Neuropeptide Y
Work can include - Answers - transport across membranes
mechanical or
chemical
Metabolic rate can be determined from - Answers - energy content of ingested food and
heat production
Factors affecting metabolic rate include: - Answers - - age, sex, genetics, hormones, gut
peptides, activity level
- lean muscle mass
- diet
Ingested biomolecules have 3 possible fates: - Answers - - metabolized to provide
energy
, - used to synthesize reactions for growth
- stored as glycogen
2 States of Metabolism are - Answers - Fed/ Absorptive state and Fasted/
Postabsorptive state
Nutrient pools available for immediate use include - Answers - free fatty acid pools,
glucose pools, amino acid pools
In the fed state, - Answers - products of digestion are absorbed, used or stored
In the fasted state, - Answers - the body taps into stores
Metabolism in the fasted state is under influence of - Answers - glucagon
Metabolism in the fed state is under influence of - Answers - insulin
What is the main source of glucose in post-absorptive state? - Answers - Glycogen
Absorbed amino acids travel to the - Answers - liver
If amino acids aren't used for protein synthesis, they can be - Answers - deaminated
Fats exit the intestine via the lymph as - Answers - chylomicrons
Where are chylomicrons formed - Answers - Enterocytes
Chylomicrons are - Answers - particles consisting of a fatty core and an outer coating of
amphipathic and hydrophilic molecule
Action of ___ lipase expressed by endothelial cells lining capillaries harvest fats. -
Answers - lipoprotein
Free fatty acids travel in blood bound to what molecule? - Answers - Serum albumin
Fats taken up by the liver can be: - Answers - harvested for compounds, stored or
exported
Glycogenolysis goes from what to what? - Answers - Glucose 6-phosphate from
glycogen to get ATP production
Proteolysis of muscle proteins only occurs during - Answers - extended fasts
Deaminated amino acids give rise to intermediates like - Answers - ammonia
ENERGY BALANCE QUESTIONS WITH VERIFIED
ACCURATE ANSWERS
Homeostatic eating - Answers - eating when energy fuels are depleted
Non-homeostatic eating - Answers - eating in the complete absence of hunger
Two centres in hypothalamus controlling hunger are: - Answers - 'hunger/feeding' and
'satiety'
Glucostatic theory states that - Answers - intake is regulated by glucose levels
Lipostatic theory states that - Answers - fat stores signal to brain which modulates
eating behaviour
What is the protein hormone synthesized in white adipose tissue? - Answers - Leptin
Increased ghrelin leads to - Answers - increased appetite
Increased stretch of stomach leads to - Answers - increased acid and decreased
appetite
__ CCK in response to fat/protein in small intestine lumen causes __ in appetite -
Answers - increase, decrease
What is the key neurotransmitter in stimulation in appetite? - Answers - Neuropeptide Y
Work can include - Answers - transport across membranes
mechanical or
chemical
Metabolic rate can be determined from - Answers - energy content of ingested food and
heat production
Factors affecting metabolic rate include: - Answers - - age, sex, genetics, hormones, gut
peptides, activity level
- lean muscle mass
- diet
Ingested biomolecules have 3 possible fates: - Answers - - metabolized to provide
energy
, - used to synthesize reactions for growth
- stored as glycogen
2 States of Metabolism are - Answers - Fed/ Absorptive state and Fasted/
Postabsorptive state
Nutrient pools available for immediate use include - Answers - free fatty acid pools,
glucose pools, amino acid pools
In the fed state, - Answers - products of digestion are absorbed, used or stored
In the fasted state, - Answers - the body taps into stores
Metabolism in the fasted state is under influence of - Answers - glucagon
Metabolism in the fed state is under influence of - Answers - insulin
What is the main source of glucose in post-absorptive state? - Answers - Glycogen
Absorbed amino acids travel to the - Answers - liver
If amino acids aren't used for protein synthesis, they can be - Answers - deaminated
Fats exit the intestine via the lymph as - Answers - chylomicrons
Where are chylomicrons formed - Answers - Enterocytes
Chylomicrons are - Answers - particles consisting of a fatty core and an outer coating of
amphipathic and hydrophilic molecule
Action of ___ lipase expressed by endothelial cells lining capillaries harvest fats. -
Answers - lipoprotein
Free fatty acids travel in blood bound to what molecule? - Answers - Serum albumin
Fats taken up by the liver can be: - Answers - harvested for compounds, stored or
exported
Glycogenolysis goes from what to what? - Answers - Glucose 6-phosphate from
glycogen to get ATP production
Proteolysis of muscle proteins only occurs during - Answers - extended fasts
Deaminated amino acids give rise to intermediates like - Answers - ammonia
