19 Questions
What is the main function of enzyme regulators?
Alter the amount of enzyme
Which term refers to the small molecules that bind to the allosteric site of enzymes?
Covalent modification
What is the main function of non-protein parts known as 'coenzymes'?
Contain pantothenic acid and act as hydrogen carriers
What happens to enzyme activity if the concentration of inhibitors increases?
It becomes inversely proportional
At what temperature does most enzymes exhibit their optimum activity?
45ºC
What is the effect of increasing or decreasing the pH on enzyme activity?
Most enzymes have an optimum pH, and deviation affects their activity
What is the role of coenzyme A in enzymatic reactions?
Activate fatty acids
'Holoenzymes' consist of:
'Apoenzymes' and 'coenzymes'
'Allosteric regulation' involves:
'Small molecules binding to allosteric sites'
Which vitamin deficiency is characterized by easily bruised skin, capillary fragility, muscle fatigue, and decreased wound healing?
Vitamin C
What is the function of Vitamin B (Cobalamins)?
Acts as a coenzyme in protein metabolism
What is the main function of Vitamin E?
Prevents peroxidation of polyunsaturated membrane fatty acids
Which vitamin deficiency leads to defective blood clotting and hemorrhage?
Vitamin K
What is the function of Vitamin B1 (Thiamine)?
Acts as a coenzyme in protein metabolism
Which vitamin is a component of the visual pigments of the eye and is involved in the formation of healthy connective tissues, bones, and teeth?
Vitamin A
What are the clinical manifestations of a deficiency of Vitamin A?
Night blindness and hyperkeratinization of the cornea
Which vitamin functions primarily to regulate calcium and phosphorous homeostasis?
Vitamin D
What is the main function of most vitamins mentioned in the passage?
Serve as cofactors for enzymatic reactions
Which vitamin has anti-oxidant activity, reducing the risk of cancers?
Vitamin E
Test your knowledge of enzyme regulators, allosteric regulation, conjuagted enzymes, inhibitors, covalent modification, and other important concepts related to enzyme function and regulation.
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