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Catalysts and Catalysis

Catalysts are compounds or elements which take part in a reaction without getting used up themselves.

950 Questions

Why are enzyme important?

Enzymes speed up a reaction by lowering the energy of activation. They can be used over and over as they are not altered in the process of helping the reaction.

What things might be considered when deciding between iron and ruthenium as a catalyst?

Factors to consider when deciding between iron and ruthenium as a catalyst include cost, reactivity/selectivity of the catalyst towards the desired reaction, availability, and potential environmental impact. Iron is more abundant and cost-effective but may have lower reactivity compared to ruthenium, which is more efficient but expensive and less earth-abundant. Additionally, the specific reaction conditions and requirements may also influence the choice of catalyst.

How catalysts are used in indystry in agriculture or in the treatment of contaminated soil waste or water?

In agriculture, catalysts can be used to enhance the efficiency of fertilizer production or in the synthesis of pesticides to improve crop yields. In the treatment of contaminated soil, waste, or water, catalysts can help break down pollutants into less harmful substances through processes like oxidation or reduction reactions, making the remediation process more efficient and environmentally friendly.

Is protease an enzyme?

Yes, protease is an enzyme that breaks down proteins into smaller peptides or amino acids. It is involved in various cellular processes, including digestion, protein signaling, and recycling of damaged proteins.

What catalyst used in the Ostwald process?

Platinum is the catalyst typically used in the Ostwald process, which is a method for producing nitric acid through the oxidation of ammonia. The platinum catalyst plays a critical role in promoting the conversion of ammonia to nitric oxide, an important intermediate in the process.

A given enzyme works on?

specific substrates to catalyze a biochemical reaction. Each enzyme has a specific substrate or group of substrates that it acts on, and the enzyme's active site is designed to bind to these substrates. This specificity ensures that the enzyme functions effectively in the body.

The official ending of all enzyme names?

ase.

Synthase, as example

Still, not all enzymes have this ending. In the old days there were no naming rules. Pepsin, a digestive enzyme, is an example of non-naming by the modern rules.

What are catalysts that slow down a reaction?

The catalysts can be used to increase or decrease the speed of a chemical reaction. The catalysts which reduce the speed of a reaction are called negative catalysts. They decrease the speed of the reaction by increasing the activation energy of the reaction.

What are the special properties of enzymes?

Enzymes reduce the activation energy of a reaction. They accomplish this feat by altering the local chemical environment of the substrates while typically bringing the reactants into close proximity and even stabilizing conformers that promote reaction.

What is the reaction of an alkene and water in the presence of an acid catalyst to produce an alcohol called?

The reaction of an alkene and water in the presence of an acid catalyst is called an acid-catalyzed hydration reaction. This reaction forms an alcohol.

Is their a relation between uses of the transition metal as a catalyst and the properties of transition metals?

One property of transition metals is that all elements and compounds in transition metals act as a catalyst ( speeds up chemical reactions. )

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State one way extremely high temperatures can affect biological catalysts found in these organisms?

Extremely high temperatures can denature biological catalysts, such as enzymes, by altering their three-dimensional structure and breaking down their active sites. This can lead to loss of function and ultimately disrupt cellular processes within the organisms.

What is the meaning of the word catalyst?

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It works by providing an alternative pathway with lower activation energy for the reaction to occur.

Are all enzymes primary metabolite?

No, not all enzymes are primary metabolites. Enzymes are proteins that catalyze various chemical reactions in cells. Primary metabolites are molecules involved in essential processes like growth and development, whereas enzymes facilitate these processes by speeding up chemical reactions.

What is enzymes function?

Enzymes work as catalysts in the body. They speed up reactions that our bodies need to function. An enzyme consists of a substrate and a binding site. The substrate fits onto the binding site perfectly. Once united the binding site splits the substrate into more usable parts. This helps our body by breaking down substances speedily for further use.

Is there any Procedure in enzyme and factors that affect enzyme activity?

Enzymes follow a specific procedure called "lock and key" model, where they bind to substrates to catalyze reactions. Factors that affect enzyme activity include temperature, pH, substrate concentration, and the presence of inhibitors or activators. These factors can alter the enzyme's structure, affecting its ability to bind to substrates and catalyze reactions effectively.

Why biological catalysts remarkable compare with industrial catalysts?

Biological catalysts are remarkable because they help the body to perform its daily functions that keep humans and animals alive and working properly. Industrial catalysts are used in the chemical industry to increase outputs and make products run more smoothly.

What are metabolic enzymes?

Metabolic enzymes are acidic proteins that exist in the mitochondria in every cell. Their function is to process ingested proteins and sugars into energy which your body will use to function or replicate cells.

How would the equilibrium concentration of H2O be affected by adding a catalyst to the mixture?

Adding a catalyst to the mixture would not affect the equilibrium concentration of H2O. A catalyst speeds up the rate of the forward and reverse reactions equally, without changing the position of the equilibrium. This means that the equilibrium concentration of H2O would not be affected by the presence of a catalyst.

How is a catalyst represented in a chemical reaction?

A catalyst is represented in a chemical reaction by placing it above the arrow in the reaction equation. This shows that the catalyst is not consumed in the reaction and only speeds up the reaction rate without being permanently changed.

What is the definition of enzyme?

Enzymes are proteins that are able to catalyze (i.e accelerate) biochemical reactions. During the course of a reaction, the enzyme is able to convert a substrate to a product but the enzyme does not get consumed in the reaction.

What elements are used as catalysts in a catalytic converter?

The most common elements used as catalysts in a catalytic converter are platinum, palladium, and rhodium. These metals help to convert harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into less harmful emissions like carbon dioxide, nitrogen, and water vapor.

What is the difference between organic and inorganic catalysts?

It's arbitrary (and some chemicals are classed as both);
but in general organic contains carbon molecules and/or those related to life. It is the chemistry of carbon containing compounds.
Inorganic is everything else and generally do not contain carbon (with some exceptions).

How is the enzyme catalyze influenced by pH?

Enzyme catalysis is influenced by pH because enzymes have an optimal pH at which they function most effectively, often corresponding to the pH of their normal working environment. Changes in pH can disrupt the charge distribution on the enzyme's active site, affecting its ability to bind to the substrate and catalyze the reaction. Extreme pH levels can denature enzymes by altering their structure, leading to loss of function.

What are the properties of cornstarch?

Cornstarch is a fine, white powder made from the endosperm of corn kernels. It is often used as a thickening agent in cooking and baking. Cornstarch has a neutral flavor and is gluten-free, making it suitable for those with dietary restrictions.