Biol 365 Lab Exam - UVIC
What trends were seen in the weight dependent change in urine glucose concentration? - Answers-
Urine glucose concentrations per fish weight (nM/mg) continually decreased over time for control, while
the insulin-exposed fish decreased until 60 minutes, then there was a subsequent rise
What were the graphs we had to make for the glucose metabolism assignment? - Answers-Weight-
dependent change in urine glucose concentration, change in blood glucose concentration, behavior
observations
What is a potential reason for the spike in glucose urine concentration per weight fish (nM/mg) for the
insulin exposed diamond tetra at 60 minutes? - Answers-Saturation of Receptor Tyrosine Kinases all over
the body --> no longer can insulin bind and exert its effect of making body tissues take up and store
glucose --> allows alpha cells of pancreas to produce glucagon and restore glucose through
gluconeogenesis in liver
What transporters are used to bring in and take glucose out of body tissues? - Answers-GLUT
Why did the insulin injection plateau? - Answers-very little was administered, not enough to cause
antagonistic action of glucagon
What were the trends seen in change in blood glucose (mM) concentrations? - Answers-Insulin injection
decreased from initial measurement and plateaued, Blood control was stable over 90 minutes, glucose
administered experienced increasing concentrations until 60 minutes and then decreased
Why did the glucose administration decrease at 60 minutes? - Answers-glucose levels surpassed
homeostatic threshold, which allows beta cells to produce insulin to reduce these hyperglycemic levels
, What were the trends in behavior observations of diamond tetras? Why? - Answers-Control had lower
activity than insulin-exposed because glucose uptake also facilitates ATP synthesis that can be used in
muscle energy expenditure
What happens if blood glucose is too low? - Answers-brain cannot function
What happens if blood glucose is too high? - Answers-osmotic balance of blood disturbed
Blood glucose regulation is ________ feedback loop - Answers-negative
Insulin _______ blood glucose levels - Answers-lowers
Glucagon ______ blood glucose levels - Answers-raises
DNAzyme is made of ________ - Answers-G-rich ssDNA and hemin
DNA forms ________ structure - Answers-G-quadruplex
What are the structures of the frog heart? - Answers-sinus venosus, atria, ventricle, conus arteriosus
Which structure of the heart is cone-shaped and the most muscular in frog? - Answers-ventricle
Which heart structure leaves the right side of the front ventricle and carries blood to pair of large
arteries to distribute to lungs and body? - Answers-conus arteriosus
What do we study in the lab that strongly affects an animal's energy metabolism? - Answers-body mass
What trends were seen in the weight dependent change in urine glucose concentration? - Answers-
Urine glucose concentrations per fish weight (nM/mg) continually decreased over time for control, while
the insulin-exposed fish decreased until 60 minutes, then there was a subsequent rise
What were the graphs we had to make for the glucose metabolism assignment? - Answers-Weight-
dependent change in urine glucose concentration, change in blood glucose concentration, behavior
observations
What is a potential reason for the spike in glucose urine concentration per weight fish (nM/mg) for the
insulin exposed diamond tetra at 60 minutes? - Answers-Saturation of Receptor Tyrosine Kinases all over
the body --> no longer can insulin bind and exert its effect of making body tissues take up and store
glucose --> allows alpha cells of pancreas to produce glucagon and restore glucose through
gluconeogenesis in liver
What transporters are used to bring in and take glucose out of body tissues? - Answers-GLUT
Why did the insulin injection plateau? - Answers-very little was administered, not enough to cause
antagonistic action of glucagon
What were the trends seen in change in blood glucose (mM) concentrations? - Answers-Insulin injection
decreased from initial measurement and plateaued, Blood control was stable over 90 minutes, glucose
administered experienced increasing concentrations until 60 minutes and then decreased
Why did the glucose administration decrease at 60 minutes? - Answers-glucose levels surpassed
homeostatic threshold, which allows beta cells to produce insulin to reduce these hyperglycemic levels
, What were the trends in behavior observations of diamond tetras? Why? - Answers-Control had lower
activity than insulin-exposed because glucose uptake also facilitates ATP synthesis that can be used in
muscle energy expenditure
What happens if blood glucose is too low? - Answers-brain cannot function
What happens if blood glucose is too high? - Answers-osmotic balance of blood disturbed
Blood glucose regulation is ________ feedback loop - Answers-negative
Insulin _______ blood glucose levels - Answers-lowers
Glucagon ______ blood glucose levels - Answers-raises
DNAzyme is made of ________ - Answers-G-rich ssDNA and hemin
DNA forms ________ structure - Answers-G-quadruplex
What are the structures of the frog heart? - Answers-sinus venosus, atria, ventricle, conus arteriosus
Which structure of the heart is cone-shaped and the most muscular in frog? - Answers-ventricle
Which heart structure leaves the right side of the front ventricle and carries blood to pair of large
arteries to distribute to lungs and body? - Answers-conus arteriosus
What do we study in the lab that strongly affects an animal's energy metabolism? - Answers-body mass
