0
What else can I help you with?
Which term refers to a macromolecule that attaches to an enzyme and plays a helper role in catalysis?
A cofactor refers to a macromolecule that attaches to an enzyme to assist in catalysis. This can be a metal ion or a coenzyme.
Poison that is an enzyme inhibitor but not a heavy metal?
One example of a poison that is an enzyme inhibitor but not a heavy metal is cyanide. Cyanide binds to cytochrome c oxidase, an enzyme involved in cellular respiration, disrupting the production of ATP and leading to cellular death. It is a potent poison that interferes with the body's ability to use oxygen.
Is edta an enzyme?
No, EDTA (ethylenediaminetetraacetic acid) is a chelating agent, not an enzyme. EDTA binds metal ions and is commonly used in laboratories to prevent metal ion contamination in reactions or to chelate metal ions in solutions.
EDTA can inhibit the amylase reaction by?
EDTA can inhibit the amylase reaction by chelating divalent metal ions, such as calcium and magnesium, that are essential for the enzyme's activity. These metal ions are often crucial for the structural stability of amylase or its active site, and their removal disrupts the enzyme's function. Consequently, the binding and catalytic processes involved in starch hydrolysis are impaired, leading to reduced enzymatic activity.
Why histidine is often found at the active-site of enzyme?
Histidine can act as a versatile amino acid in enzyme active sites because of its ability to donate and accept protons over a wide pH range. This allows histidine to participate in various catalytic mechanisms, making it a common residue in enzyme active sites. Additionally, the imidazole side chain of histidine can form hydrogen bonds and coordinate with metal ions, further enhancing its role in enzyme catalysis.
What is an enzyme inhibitor that isn't a heavy metal?
Ricin
Difference between activator and prosthetic groups?
Prosthetic groups can be as simple as a single metal ion bound into the enzyme's structure, or may be a more complicated organic molecule (which might also contain a metal ion). it is permanently bonded to enzyme. Activator is only metal ion that is detachable. source:chemguide.co.uk Stuffidious.com
Which term refers to a macromolecule that attaches to an enzyme and plays a helper role in catalysis?
A cofactor refers to a macromolecule that attaches to an enzyme to assist in catalysis. This can be a metal ion or a coenzyme.
Poison that is an enzyme inhibitor but not a heavy metal?
One example of a poison that is an enzyme inhibitor but not a heavy metal is cyanide. Cyanide binds to cytochrome c oxidase, an enzyme involved in cellular respiration, disrupting the production of ATP and leading to cellular death. It is a potent poison that interferes with the body's ability to use oxygen.
What is a non protein helper of an enzyme molecule called?
A non-protein helper of an enzyme molecule is called a cofactor or a coenzyme. These molecules assist in the enzyme's activity by aiding in the catalytic process. Examples include metal ions like zinc or magnesium, and organic molecules like NAD+ or coenzyme A.
What is role of metal ion in enzyme catalysis?
On each surface of enzyme there are detachable cofactor (non-protein portin of enzyme) called activators. Activators are metal ions.Enzymes are proteins and literally fold into a specific 3d structure, to make space for an active site (also called activators). Active site has a shape that fits with specific substrate molecules.The enzyme and substrate form a temporary enzyme-substrate complex.Enzymes are flexible structures.When enzyme and substrate bind together, the shape of enzyme molecule undergoes slight change.This produces strain in chemical bond in the substrate molecules and as a result these bonds break and bonds are formed. These stresses encourage a link between two substrstes leading to the formation of a different molecule.As the result of the chemicl interactions within the active sites a new chemical compound is formed. The new chemical compound is called product.This product is released from the active site, the enzyme assumes its orignal shape and is free to work again.
Is edta an enzyme?
No, EDTA (ethylenediaminetetraacetic acid) is a chelating agent, not an enzyme. EDTA binds metal ions and is commonly used in laboratories to prevent metal ion contamination in reactions or to chelate metal ions in solutions.
What small organic molecule is required for the functioning of an enzyme?
coenzyme
Can the reaction of an enzyme still take place if it's shape is changed by a heavy metal or the change in it's pH level?
If an enzyme is put under certain conditions, including proximity to heavy metals, pH extremes, and temperature extremes, the enzyme will break apart. This means that the enzyme has been denatured, and will no longer work. It depends on how much the enzyme's shape has changed. This is dependent on what enzyme is in question and what conditions it was put under.
EDTA can inhibit the amylase reaction by?
EDTA can inhibit the amylase reaction by chelating divalent metal ions, such as calcium and magnesium, that are essential for the enzyme's activity. These metal ions are often crucial for the structural stability of amylase or its active site, and their removal disrupts the enzyme's function. Consequently, the binding and catalytic processes involved in starch hydrolysis are impaired, leading to reduced enzymatic activity.
What are some differences and or similarities in the type of inhibition caused by heat acid or base and heavy metal ions on enzyme activity?
Heat, acid, and base can denature enzymes by disrupting their structure, leading to reversible inhibition. Heavy metal ions can bind to specific amino acid residues on enzyme active sites, causing irreversible inhibition. Both types of inhibition can decrease enzyme activity, although heavy metal ions typically have longer-lasting effects due to the irreversible nature of their inhibition.
The binding together of an enzyme and a substrate forms a what?
enzyme-substrate complex
