(Complete) All; MLT Clinical Chemistry Exams and All;
MLT Chemistry Exams| Test Bank| Guide with Verified
Answers. Rated A+
Enzymes that can bind only one substrate and catalyze one reaction exhibit which
type of binding specificity? - ANSWERAbsolute binding
The rate of an enzymatic reaction will ___________________ for every 10 degrees C
temperature increase until the enzyme denatures. - ANSWERDouble
All of the following conditions may result in a rise in CKBB levels except.
a. Child birth
b Spinal chord injury
c. Myocardial infarction
d. Brain tumor - ANSWERc. Myocardial infarction
Which two enzymes will show significant elevations with viral hepatitis? -
ANSWERAST & ALT
GGT is an enzyme that can be used to help monitor the treatment of which patient
population? - ANSWERrecovering alcoholics
Digestive enzymes circulate in inactive forms called __________________. -
ANSWERZymogens
A patient comes to the ER with abdominal pain, the physician ordered an amylase,
lipase, and lipid panel. The triglyceride result is significantly elevated, how might this
effect the amylase and lipid levels? (thrown out) - ANSWERUnchanged lipase,
decreased amylase
Which of the following is a function of glucose-6-phosphate dehydrogenase (G6PD)
a. prevents RBC lysis
b. inhibits CK
c. stimulates insulin secretion
d. catalyzes the conversion of glutamate - ANSWERa. prevents RBC lysis
Which type of enzyme kinetics assay is ideal fro the clinical laboratory setting where
the amount of enzyme produced by the patient is unknown? - ANSWERzero order
What condition is characterized by elevated serum amylase levels and decrease
urinary amylase levels due to amylase binding to immunoglobulins? -
ANSWERmacroamylasemia
In the presence of a competitive inhibitor, what would need to be increased to reach
VMax? - ANSWERsubstrate
,A grossly hemolyzed sample is received in the lab, what effect would this have on the
total CK determination? - ANSWERFalsely increased
A patient with osteitis deformans would be expected to have elevations in which
enzyme? - ANSWERALP
Which enzyme may be useful in diagnosing metastatic carcinomas of the prostate? -
ANSWERACP
Which enzyme is most specific for the diagnosis of acute pancreatitis? -
ANSWERLipase
Elevation in this enzyme can be useful in diagnosing patients with hemolytic anemia?
- ANSWERLD
Which of the following is not a reducing substance?
a. lactose
b. glucose
c. sucrose
d. fructose - ANSWERc. sucrose
What process converts non-sugar molecules into glucose to be used for energy? -
ANSWERGluconeogenesis
All of the following are symptoms of hyperglycemia except.
a. excessive thirst
b. dry skin
c. drowsiness
d. decreased urination - ANSWERdecreased urination
Which hormone is referred to as a hypoglycemic and increases glycolysis and
glycogenesis? - ANSWERinsulin
When a patient with diabetes mellitus begins to use lipids for energy, which of the
following analytes will be elevated?
a. HDL
b. lactose
c. ketones
d. growth factor - ANSWERketones
Carbohydrate are composed of carbon, hydrogen, and oxygen, what is the ratio of
hydrogen to carbon? - ANSWER2:1
What is the primary site for glycogenesis? - ANSWERliver
The production of autoantibodies against the insulin producing cells in the pancreas
is seen with what form of diabetes?
, a. Type 1
b. Type 2 - ANSWERa. Type 1
At what age does the ADA recommend beginning screening for diabetes every three
years? - ANSWER45 years old
What disease, where patients cannot convert glycogen to glucose, is caused by a
deficiency in glucose-6-phosphatase? - ANSWERVon Gierke's Disease
Which of the following is a cause of hypoglycemia?
a. increased glucagon production
b. decreased activity level
c. increased food intake
d. decreased insulin production - ANSWERincreased glucagon production
Which pathway allows for pentose sugars, like ribose, to enter the glycolytic
process? - ANSWERHexose monophosphate shunt
High levels of glucose can inhibit this hormone and lead to delayed growth and
development in children. - ANSWERgrowth hormone
Which form of diabetes mellitus is caused by a decreased cellular response to
insulin? - ANSWERType 2
Which of the following is considered diagnostic for diabetes mellitus?
a. random plasma glucose of 100mg/dL
b. 2hr tolerance test of less than 50mg/dL
c. fasting plasma glucose of 100mg/dL
d. hemoglobin SA1C of 8% - ANSWERhemoglobin SA1C of 8%
Which process converts glycogen back into glucose? - ANSWERglycogenesis
Babies born to mothers with uncontrolled gestational diabetes may be at risk for all
of the following except.
a. low birth rate
b. hypocalcemia
c. hyperbiliruinemia
d. respiratory distress - ANSWERlow birth rate
Which hormone works to increase blood sugar levels by increasing glycogenolysis
and the amount of monosaccharides in circulation? - ANSWERglucagon
In a patient with bacterial meningitis, the glucose levels would be
________________________.
a. normal
b. increased
c. decreased - ANSWERdecreased
MLT Chemistry Exams| Test Bank| Guide with Verified
Answers. Rated A+
Enzymes that can bind only one substrate and catalyze one reaction exhibit which
type of binding specificity? - ANSWERAbsolute binding
The rate of an enzymatic reaction will ___________________ for every 10 degrees C
temperature increase until the enzyme denatures. - ANSWERDouble
All of the following conditions may result in a rise in CKBB levels except.
a. Child birth
b Spinal chord injury
c. Myocardial infarction
d. Brain tumor - ANSWERc. Myocardial infarction
Which two enzymes will show significant elevations with viral hepatitis? -
ANSWERAST & ALT
GGT is an enzyme that can be used to help monitor the treatment of which patient
population? - ANSWERrecovering alcoholics
Digestive enzymes circulate in inactive forms called __________________. -
ANSWERZymogens
A patient comes to the ER with abdominal pain, the physician ordered an amylase,
lipase, and lipid panel. The triglyceride result is significantly elevated, how might this
effect the amylase and lipid levels? (thrown out) - ANSWERUnchanged lipase,
decreased amylase
Which of the following is a function of glucose-6-phosphate dehydrogenase (G6PD)
a. prevents RBC lysis
b. inhibits CK
c. stimulates insulin secretion
d. catalyzes the conversion of glutamate - ANSWERa. prevents RBC lysis
Which type of enzyme kinetics assay is ideal fro the clinical laboratory setting where
the amount of enzyme produced by the patient is unknown? - ANSWERzero order
What condition is characterized by elevated serum amylase levels and decrease
urinary amylase levels due to amylase binding to immunoglobulins? -
ANSWERmacroamylasemia
In the presence of a competitive inhibitor, what would need to be increased to reach
VMax? - ANSWERsubstrate
,A grossly hemolyzed sample is received in the lab, what effect would this have on the
total CK determination? - ANSWERFalsely increased
A patient with osteitis deformans would be expected to have elevations in which
enzyme? - ANSWERALP
Which enzyme may be useful in diagnosing metastatic carcinomas of the prostate? -
ANSWERACP
Which enzyme is most specific for the diagnosis of acute pancreatitis? -
ANSWERLipase
Elevation in this enzyme can be useful in diagnosing patients with hemolytic anemia?
- ANSWERLD
Which of the following is not a reducing substance?
a. lactose
b. glucose
c. sucrose
d. fructose - ANSWERc. sucrose
What process converts non-sugar molecules into glucose to be used for energy? -
ANSWERGluconeogenesis
All of the following are symptoms of hyperglycemia except.
a. excessive thirst
b. dry skin
c. drowsiness
d. decreased urination - ANSWERdecreased urination
Which hormone is referred to as a hypoglycemic and increases glycolysis and
glycogenesis? - ANSWERinsulin
When a patient with diabetes mellitus begins to use lipids for energy, which of the
following analytes will be elevated?
a. HDL
b. lactose
c. ketones
d. growth factor - ANSWERketones
Carbohydrate are composed of carbon, hydrogen, and oxygen, what is the ratio of
hydrogen to carbon? - ANSWER2:1
What is the primary site for glycogenesis? - ANSWERliver
The production of autoantibodies against the insulin producing cells in the pancreas
is seen with what form of diabetes?
, a. Type 1
b. Type 2 - ANSWERa. Type 1
At what age does the ADA recommend beginning screening for diabetes every three
years? - ANSWER45 years old
What disease, where patients cannot convert glycogen to glucose, is caused by a
deficiency in glucose-6-phosphatase? - ANSWERVon Gierke's Disease
Which of the following is a cause of hypoglycemia?
a. increased glucagon production
b. decreased activity level
c. increased food intake
d. decreased insulin production - ANSWERincreased glucagon production
Which pathway allows for pentose sugars, like ribose, to enter the glycolytic
process? - ANSWERHexose monophosphate shunt
High levels of glucose can inhibit this hormone and lead to delayed growth and
development in children. - ANSWERgrowth hormone
Which form of diabetes mellitus is caused by a decreased cellular response to
insulin? - ANSWERType 2
Which of the following is considered diagnostic for diabetes mellitus?
a. random plasma glucose of 100mg/dL
b. 2hr tolerance test of less than 50mg/dL
c. fasting plasma glucose of 100mg/dL
d. hemoglobin SA1C of 8% - ANSWERhemoglobin SA1C of 8%
Which process converts glycogen back into glucose? - ANSWERglycogenesis
Babies born to mothers with uncontrolled gestational diabetes may be at risk for all
of the following except.
a. low birth rate
b. hypocalcemia
c. hyperbiliruinemia
d. respiratory distress - ANSWERlow birth rate
Which hormone works to increase blood sugar levels by increasing glycogenolysis
and the amount of monosaccharides in circulation? - ANSWERglucagon
In a patient with bacterial meningitis, the glucose levels would be
________________________.
a. normal
b. increased
c. decreased - ANSWERdecreased
