NBME biochemistry Exam Questions And Correctly
Verified Answers Already PASSED!!!
BMR= 24 kcal per Kg of body weight.
BMR calculation?
30% Of their BMR
amount of energy a sedentary person exerts through physical activity per day?
BMI= Kg/m^2
BMI calculation?
Underweight= <18.5
Normal weight= 18.5- 24.99
Overweight= 25- 29.99
Class 1 obese= 30-34.99
Class 2 obese= 35-39.99
Class 3 obese (morbidly obese)= >40
BMI:
Underweight= ?
Normal= ?
Overweight= ?
Class 1 obesity= ?
Class 2 obesity= ?
Class 3 obesity (morbid obesity)= ?
0.8 g/kg body weight
recommended protein intake (in g/kg body weight per day)?
Phenylalanine
Valine
,Threonine
Tryptophan
Isoleucine
Methionine
Histidine
Arginine
Leucine
Lysine
Essential amino acids?
(PVT TIM HALL)
Urea
**urea is excreted by the kidneys.
As proteins are broken down and oxidized for energy, the nitrogen groups are converted
into?
A negative nitrogen balance
Inadequate amount of dietary proteins, or absence of essential amino acids in the diet
results in a ____________ nitrogen balance?
Mouth= Salivary alpha-amylase
Intestine= Pancreatic alpha-amylase
Brush border= Maltase and Isomaltase
Enzymes that convert starch to glucose:
-in mouth?
-in intestine?
-in brush border intestine epithelial cells (2)?
Sucrase
,Lactase
**Monosaccharides are absorbed by intestinal epithelial cells and pass into
blood.
Enzyme that converts sucrose to fructose and glucose?
Enzyme that converts lactose to glucose and galactose?
In the stomach by pepsin
Where in the digestive tract are proteins first digested?
What enzyme digests proteins here?
Trypsin
Chymotrypsin
Elastase
Carboxypeptidase
What are the 4 enzymes produced by the pancreas that act to degrade proteins in the
intestine?
Glycogenolysis= 2-3 hours after a meal
Gluconeogenesis= 4-6 hours after a meal
Carbon sources= Lactate (from RBCs or exercising muscle)
-Glycerol (from TAG breakdown in adipose tissue)
-AAs, particularly alanine (from muscle)
-Propionate (from oxidation of odd chain fatty acids; minor source)
Glycogenolysis takes place _______ hours after a meal?
Gluconeogenesis occurs _______ hours after a meal?
Carbon sources for gluconeogenesis?
Ketone bodies.
, After 3-4 days of fasting, what does the brain begin using for fuel?
Protein degradation decreases
Urea production decreases
Blood [ketone bodies] increases (due to muscles decreasing use of ketone
bodies for energy)
Brain utilization of ketone bodies increases
In the starved state:
Protein degradation to generate free AAs: ?
Urea production: ?
Blood [Ketone body]: ?
Brain utilization of ketone bodies?
Kwashiorkor
Remember FLAME
Fatty Liver
Anemia
Malabsorption
Edema
(also red hair)
Malnutrition disease that arises from a diet adequate in protein but low in calories?
Marasmus
Malnutrition disease that arises from a diet low in calories and proteins?
In oxidation reactions, electrons are lost
In reduction reactions, electrons are gained
Verified Answers Already PASSED!!!
BMR= 24 kcal per Kg of body weight.
BMR calculation?
30% Of their BMR
amount of energy a sedentary person exerts through physical activity per day?
BMI= Kg/m^2
BMI calculation?
Underweight= <18.5
Normal weight= 18.5- 24.99
Overweight= 25- 29.99
Class 1 obese= 30-34.99
Class 2 obese= 35-39.99
Class 3 obese (morbidly obese)= >40
BMI:
Underweight= ?
Normal= ?
Overweight= ?
Class 1 obesity= ?
Class 2 obesity= ?
Class 3 obesity (morbid obesity)= ?
0.8 g/kg body weight
recommended protein intake (in g/kg body weight per day)?
Phenylalanine
Valine
,Threonine
Tryptophan
Isoleucine
Methionine
Histidine
Arginine
Leucine
Lysine
Essential amino acids?
(PVT TIM HALL)
Urea
**urea is excreted by the kidneys.
As proteins are broken down and oxidized for energy, the nitrogen groups are converted
into?
A negative nitrogen balance
Inadequate amount of dietary proteins, or absence of essential amino acids in the diet
results in a ____________ nitrogen balance?
Mouth= Salivary alpha-amylase
Intestine= Pancreatic alpha-amylase
Brush border= Maltase and Isomaltase
Enzymes that convert starch to glucose:
-in mouth?
-in intestine?
-in brush border intestine epithelial cells (2)?
Sucrase
,Lactase
**Monosaccharides are absorbed by intestinal epithelial cells and pass into
blood.
Enzyme that converts sucrose to fructose and glucose?
Enzyme that converts lactose to glucose and galactose?
In the stomach by pepsin
Where in the digestive tract are proteins first digested?
What enzyme digests proteins here?
Trypsin
Chymotrypsin
Elastase
Carboxypeptidase
What are the 4 enzymes produced by the pancreas that act to degrade proteins in the
intestine?
Glycogenolysis= 2-3 hours after a meal
Gluconeogenesis= 4-6 hours after a meal
Carbon sources= Lactate (from RBCs or exercising muscle)
-Glycerol (from TAG breakdown in adipose tissue)
-AAs, particularly alanine (from muscle)
-Propionate (from oxidation of odd chain fatty acids; minor source)
Glycogenolysis takes place _______ hours after a meal?
Gluconeogenesis occurs _______ hours after a meal?
Carbon sources for gluconeogenesis?
Ketone bodies.
, After 3-4 days of fasting, what does the brain begin using for fuel?
Protein degradation decreases
Urea production decreases
Blood [ketone bodies] increases (due to muscles decreasing use of ketone
bodies for energy)
Brain utilization of ketone bodies increases
In the starved state:
Protein degradation to generate free AAs: ?
Urea production: ?
Blood [Ketone body]: ?
Brain utilization of ketone bodies?
Kwashiorkor
Remember FLAME
Fatty Liver
Anemia
Malabsorption
Edema
(also red hair)
Malnutrition disease that arises from a diet adequate in protein but low in calories?
Marasmus
Malnutrition disease that arises from a diet low in calories and proteins?
In oxidation reactions, electrons are lost
In reduction reactions, electrons are gained
