Bio chem C785 Unit 3 Exam
Which property of enzymes is illustrated in the final step of the enzymatic cycle? –
Enzymes are reusable
n the enzyme cycle, which step immediately follows induced fit? –
Formation of the enzyme-product complex
Which type of inhibition occurs when a particular drug binds to the active site of an
enzyme? –
Competitive
Salivary amylase, an enzyme responsible for partial digestion of carbohydrates, has
optimum activity at a pH value of 6.8.
What is the impact on the activity if the pH is decreased to 4.0? –
Significantly decrease
Low levels of glutathione are associated with certain types of ovarian and breast
cancers. In the synthesis of glutathione, glutathione accumulates in the cell, binding to
an enzyme in the pathway and temporarily preventing the synthesis of glutathione.
Which type of inhibition is described by this scenario? –
Feedback
Lipase is an enzyme with an optimum temperature of 98.6°F and an optimum pH of 7.0
in the duodenum in the human body. If a person is experiencing a fever of 99.8°F, what
will increase the activity of the lipase enzyme? –
Decrease in temperature
The enzyme glucokinase only binds its substrate glucose and converts glucose into the
product glucose-6-phosphate. Which property of enzymes is described by this
scenario? –
Specificity
Low levels of glutathione are associated with neurological, immunological, and
cardiovascular impairments. Two enzymatic reactions are involved in the synthesis of
glutathione. In the second enzymatic reaction, glutathione synthetase converts glycine
Which property of enzymes is illustrated in the final step of the enzymatic cycle? –
Enzymes are reusable
n the enzyme cycle, which step immediately follows induced fit? –
Formation of the enzyme-product complex
Which type of inhibition occurs when a particular drug binds to the active site of an
enzyme? –
Competitive
Salivary amylase, an enzyme responsible for partial digestion of carbohydrates, has
optimum activity at a pH value of 6.8.
What is the impact on the activity if the pH is decreased to 4.0? –
Significantly decrease
Low levels of glutathione are associated with certain types of ovarian and breast
cancers. In the synthesis of glutathione, glutathione accumulates in the cell, binding to
an enzyme in the pathway and temporarily preventing the synthesis of glutathione.
Which type of inhibition is described by this scenario? –
Feedback
Lipase is an enzyme with an optimum temperature of 98.6°F and an optimum pH of 7.0
in the duodenum in the human body. If a person is experiencing a fever of 99.8°F, what
will increase the activity of the lipase enzyme? –
Decrease in temperature
The enzyme glucokinase only binds its substrate glucose and converts glucose into the
product glucose-6-phosphate. Which property of enzymes is described by this
scenario? –
Specificity
Low levels of glutathione are associated with neurological, immunological, and
cardiovascular impairments. Two enzymatic reactions are involved in the synthesis of
glutathione. In the second enzymatic reaction, glutathione synthetase converts glycine
