unit 1 review exam
Which of the following hormones is not involved in regulating glucose metabolism?
/
Oxidation of a 24-carbon fatty acid would require _____ rounds of beta-oxidation and ______ rounds of the krebs cycle.
11; 12
Which of the following activities/exercises would be fueled primarily by oxidative phosphorylation?
30 second sprint
How many ATP are produced through the complete oxidation of 1 molecule of glucose?
30-32
How many ATP are produced through the complete oxidation of 2 molecules of glucose?
34-38
Which of the following would NOT be considered anaerobic exercise?
40 yard dash
The complete oxidation of a 12 carbon fatty acid requires _____ rounds of Beta Oxidation and ________ round of the Krebs Cycle.
5,6
Energy to run a maximal 40-yd dash (3-5 seconds) in an elite sprinter comes from:
A combination of aerobic/anaerobic metabolism, with most of the ATP coming from anaerobic glycolysis
Which of the following hormones is released by the pituitary gland?
ACTH
Aerobic examples
Cycling, running, swimming, aerobic dancing, rowing, cross country skiing
Which of the following is NOT a possible explanation for EPOC?
Decrease in Catecholamines
Excess oxygen consumed immediately after the end of an exercise session is called:
EPOC
Which of the following statements about fat metabolism is false?
Fat metabolism requires less oxygen than carbohydrate metabolism
what hormones stimulate the breakdown of triglycerides from adipose tissue?
Growth Hormone Catecholamines
Which of the following is NOT a characteristic of aerobic exercise?
High-intensity, Short Duration
What is the rate-limiting enzyme for the Krebs Cycle (TCA Cycle)?
Isocitrate Dehydrogenase
Which of the following statements about indirect calorimetry is true?
It requires the measurement of gases produced by the body, including carbon dioxide and nitric oxide
Which of the following statements about direct calorimetry is true?
It utilizes the measurement of heat production to calculate energy expenditure during exercise
the point at which the rate of lactate productions begins to exceed the rate of clearance is commonly called:
Lactate Threshold
Which of the following would be the most accurate measure of metabolic production of ATP?
Metabolic heat production
Which hormone is associated with the Sympathetic Nervous System?
Norepinephrine
The lag in oxygen consumption at the beginning of exercise is called:
Oxygen Deficit
Which of the following statements about Aldosterone is incorrect?
Released by the kidneys in response to a drop in blood pressure
As discussed in class ,what does RER stand for?
Respiratory Exchange Ratio
RER stands for _________ and is used to determine ____________.
Respiratory Exchange Ratio; Substrate utilization during exercise
Stacie is running her first marathon. By the time she reaches mile 22 (of 26), she has depleted her glycogen stores. Which of the following statements is true?
She will increase her pace and begin relying on fat and protein metabolism to push her through the final miles as quickly as possible
Which of the following is a characteristic of non-steroid hormones?
Signals through a second messenger
Which of the following represents the correct order of events during the first minute of moderate intensity exercise?
The ATP-PC system fuels the first few seconds, followed by anaerobic glycolysis
An RER of >1.00 indicates
The contribute of anaerobic energy production
Which of the following statements is correct?
The electron transport chain is located within the cristae of the mitochondria
Which of the following statements concerning the electron transport chain (ETC) is/are true?
The electrons passed down the chain will eventually be used to help form water.
You are investigating the hormonal response to exercise in two different people. One person is a highly trained athlete; the other is untrained. Which person would likely have the greater hormonal response (i.e. higher blood concentration of relevant hormones) to a high-intensity (80% of max), short duration exercise session?
The highly trained athlete
The principle function of the TCA cycle is to:
To the complete the oxidation of carbohydrates and fats (i.e. Form NADH and FADH2)
Which of the following would likely occur in response to long-duration (>60min), low-intensity exercise (~35% of max effort)?
Triglyceride lipolysis and subsequent metabolism through beta-oxidation
Which of the following most correctly describes the structure of ADP?
Two phospoate groups attached to an adenosine backbone
An RER of 0.95 indicates
a high rate of carbohydrate metabolism
An RER of 0.75 indicates:
a high rate of fat metabolism
An RER of 0.85 indicates:
an equal rate of fat metabolism and carbohydrate metabolism
Where is the cell does Glycolysis take place?
cytosol
During high-intensity, short duration exercise, which of the following hormones has the greatest effect on blood glucose regulation?
glucagon
Anarobic examples
heavy lifting jumping biking
A hormone that exerts its action on another endocrine organ to stimulate the release of a hormone from that organ would be considered a ________________ hormone.
inhibiting
Which hormone is secreted by the beta cells of the pancreas?
insulin
Which of the following hormones is not involved in the maintenance of blood fatty acids?
none of the above
What is the rate-limiting enzyme for Glycolysis?
phosphofructokinase
Which of the following would NOT be considered aerobic exercise?
powerlifting
aerobic respiration
requires oxygen
anarobic respiration
respiration without oxygen
Which of the following activities/exercises would be fueled primarily by the ATP-PC system?
shot pun
Which of the following can we measure using only gas exchange?
some of these
Which of the following would be considered aerobic exercise?
swimming
The catecholamines (epinephrine and norepinephrine) are produced by the which endocrine organ?
the adrenal gland
Beta oxidation occurs in the mitochondria
true
Glycolysis takes place in the cytoplasm
true
The Krebs Cycle takes place in the mitochondrial matrix
true
