Chapter 25 Flashcards
Chemical reactions that break down complex organic molecules into simpler ones are called:
a) Metabolism
b) Anabolism
c) Catabolism
d) Metatheses
e) Oxidation reactions
c) Catabolism
Chemical reactions that combine simple molecules and monomers to form complex structures are known as
a) Metabolism
b) Anabolism
c) Catabolism
d) Metatheses
e) None of these choices
b) Anabolism
When the terminal phosphate is cut off of ATP what is formed?
a) Adenosine diphosphate
b) GTP
c) Adenosine monophosphate
d) Metabolic water
e) Glucose
a) Adenosine diphosphate
Oxidation is
a) The removal of protons
b) The removal of electrons
c) The addition of protons
d) The addition of electrons
e) None of these choices
b) The removal of electrons
Reduction is the
a) The removal of protons
b) The removal of electrons
c) The addition of protons
d) The addition of electrons
e) None of these choices
d) The addition of electrons
Which of the following is a derivative of riboflavin?
a) NAD
b) FAD
c) Lactic acid
d) Pyruvic acid
e) ADP
b) FAD
Which of the following is NOT a form of phosphorylation?
a) Reduction phosphorylation
b) Substrate level phosphorylation
c) Oxidative phosphorylation
d) Photophosphorylation
e) None of these choices
a) Reduction phosphorylation
Glycogenesis is NOT
a) performed by the hepatocytes
b) performed by muscle fibers
c) one way to make glycogen
d) one way to make glucose
e) only seen in the liver
d) one way to make glucose
Which process describes the synthesis of triglycerides?
a) Gluconeogensis
b) Lipogenesis
c) Phosphorylation
d) Glycolysis
e) Lipolysis
b) Lipogenesis
Which reaction describes the oxidization of acetyl CoA to produce carbon dioxide, ATP, NADH + H+ and FADH2?
a) Glycolysis
b) Formation of acetyl co-A
c) Krebs cycle
d) Electron transport chain
e) Phosphorylation
c) Krebs cycle
Glycolysis, formation of acetyl CoA, Krebs cycle and the electron transport chain are all involved in:
a) Lipogensis
b) Gluconeogenesis
c) Glucose catabolism
d) Formation of Glycogen
e) Formation of vitamin C
c) Glucose catabolism
Which of the following is the key regulator of the rate of glycolysis?
a) ATP
b) NADH
c) Phosphofructokinase
d) Glyceraldehyde-3-phosphate
e) FAD
c) Phosphofructokinase
Where can pyruvate dehydrogenase be found?
a) Cytosol of the cell
b) Plasma membrane
c) Lysozyme
d) Mitochondria
e) Interstitial fluid
d) Mitochondria
The most abundant product of the reactions of the Krebs cycle is
a) Carbon dioxide
b) GTP
c) Reduced coenzymes
d) pyruvate
e) water
c) Reduced coenzymes
The net result of the complete oxidation of glucose does NOT include:
a) water
b) carbon dioxide
c) ATP
d) oxygen
e) waste heat
d) oxygen
How many reactions take place during the Krebs cycle?
a) 4
b) 6
c) 8
d) 10
e) 12
c) 8
Accumulation of a large amount of H+ between the inner and outer mitochondrial membranes, is described as
a) Proton pump
b) Chemiosmosis
c) Krebs cycle
d) ATP synthesis
e) Glycolysis
b) Chemiosmosis
How many ATPs can come from substrate level phosphorylation during glycolysis?
a) 0
b) 1
c) 2
d) 3
e) 4
c) 2
What hormone stimulates glycogenesis?
a) Insulin
b) Glucase
c) Estrogen
d) Lactic acid
e) Protease
a) Insulin
What hormone stimulates gluconeogenesis?
a) Insulin
b) Human Growth hormone
c) Epinephrine
d) Thyroid hormone
e) Cortisol
e) Cortisol
Glycogenolysis is _____ and stimulated by _____.
a) Anabolic, Insulin
b) Catabolic, Epinephrine
c) Catabolic, Insulin
d) Anabolic, Epinephrine
e) Metathesis, Insulin
b) Catabolic, Epinephrine
Thyroid hormones:
a) Aid in glycogenesis
b) Inhibit gluconeogensis
c) Inhibit lipogenesis
d) Promote glycolysis
e) Promote gluconeogenesis
d) Promote glycolysis
Which of the following transport dietary lipids?
a) Apoproteins
b) Low density lipoproteins
c) Chylomicrons
d) Very low density lipoproteins
e) High density lipoproteins
c) Chylomicrons
Most cholesterol medications are designed to:
a) Inhibit excretion of bile in the feces
b) Promote the absorption of cholesterol
c) Decrease the filtration of cholesterol
d) Inhibit glucose absorption
e) None of these choices
e) None of these choices
Where does glycolysis take place?
a) Cytosol
b) Plasma membrane
c) Nucleus
d) Mitochondria
e) Golgi Apparatus
a) Cytosol
Where does the Krebs cycle take place?
a) Cytosol
b) Plasma membrane
c) Nucleus
d) Mitochondria
e) Golgi Apparatus
d) Mitochondria
Lipogenesis occurs when
a) More calories are consumed than required for ATP need
b) Less calories are consumed than required for ATP need
c) More cholesterol is consumed than required for ATP need
d) Less cholesterol is consumed than required for ATP need
e) Gluconeogenesis fails
a) More calories are consumed than required for ATP need
Excess amino acids in the body are
a) Excreted in urine
b) Excreted in feces
c) Converted into glucose
d) Stored as ATP
e) Converted into proteins
c) Converted into glucose
Liver cells convert:
a) Urea into ammonia
b) Ammonia into lactic acid
c) Lactic acid into urea
d) Pyruvic acid into urea
e) Ammonia into urea
e) Ammonia into urea
Glucose-6-phosphate
a) Can be used to make ribose-5-phosphate
b) Can be dephosphorylated to glucose
c) Can be used to synthesize glycogen
d) Can be converted to pyruvic acid
e) All of these choices
e) All of these choices