Catalysts and Catalysis

Enzymes are located inside cells, primarily in the cytoplasm and organelles like the mitochondria and the endoplasmic reticulum. They can also be found on the cell membrane or in the extracellular space for certain metabolic processes.

The substance that acts as a catalyst during photosynthesis is an enzyme called Rubisco. Rubisco plays a key role in the carbon fixation process, where it catalyzes the reaction that combines carbon dioxide and ribulose-1,5-bisphosphate to form 3-phosphoglycerate in the Calvin cycle.

the maximum catalytic rate (Vmax). At this point, all enzyme active sites are saturated with substrate and increasing the substrate concentration will not further increase the rate of catalysis.

The presence of a catalyst affects the activation energy of a reaction by lowering the activation energy, helping the reaction go faster and making it so the reaction does not have to use as much energy to fulfill the products.

adsorbent is a substance that is usually porous in nature with high surface area that can adsorb substances onto its surface with the help of intermolecular forces while the adsorbate is a substance that is adsorb on a surface of another substance.

An example of a catalyst is platinum, which is used in catalytic converters to facilitate the conversion of harmful gases into less harmful emissions in vehicles. Catalysis allows chemical reactions to occur more quickly and efficiently, without being consumed in the process.

A catalyst is a substance that can speed up a reaction without being involved in the reaction. A catalyst is therefore often used to speed up a reaction.

These are often used in the production of chemicals since very few are needed for a long time to keep a reaction going fast (they do not change during the reaction, and therefore can be reused).

An inhibitor does the opposite - it slows down the reaction and is not involved in the reaction.

These are often used in foods and anti rust products to slow foods from rotting and the process of oxidation (rusting), respectively.

Examples of intracellular enzymes include catalase, an enzyme that breaks down hydrogen peroxide in cells, and DNA polymerase, an enzyme involved in DNA replication. Additionally, enzymes like lipase and protease function intracellularly in breaking down lipid and protein molecules, respectively.

A catalyst is something which speeds up

a chemical reaction without itself being

one of the reactants or products (in other words,

without being consumed).

Magnesium sulfate is probably a good catalyst for

some reactions, not for others. What reaction are

you interested in?

Best, Prof. Topper

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A catalyst is a substance that accelerates a chemical reaction without

being changed by the reaction. Different substances catalyze different

reactions. For example, platinum catalyzes the burning of hydrogen in air,

acid catalyzes the decomposition of starch into glucose, and iron catalyzes

the decomposition of hydrogen peroxide into water and oxygen.

I do not know of any reaction that is catalyzed by magnesium sulfate, so I

don't know why it might be a good catalyst.

by Robert john at the aveland high school 11ad head of science teacher s.dancey

26th September 2008

I am looking at a bottle of 3% Hydrogen Peroxide USP. Mfd. by Rougier Pharma. On the back it says Non-medicinal ingredients: Sodium Stannate (stabililzer) and Purified Water.

A catalyst is a substance that accelerates or increases the rate of a chemical reaction. In principle a catalyst should remain unaffected during the process. However normally it loses some activity during it resuses.

No they do not.

A catalyst is a thing (atom, molecule, element, etc.) that speeds up a chem. rxn by lowering the activation energy without being altered itself. So it only cause the reaction to occur faster, but will not have any affect on the equilibrium. Also, since the catalyst is not altered, it should 'come out' exactly as it 'went in.'

Some common projects for a Class 11 chemistry student may include investigating the effects of different concentrations of acids or bases on reaction rates, studying the properties of different types of solutions, or researching the environmental impact of specific chemical reactions. Students could also explore topics such as electrolysis, chemical kinetics, or the application of chemistry in everyday life for their projects.

A catalyst lowers the activation energy required for a chemical reaction to occur. This allows the reaction to proceed more quickly and with less energy input.

PEG 6000 distearate can act as a thickening agent in cosmetic formulations due to its ability to increase viscosity. It is not typically used with a specific catalyst as its thickening properties are primarily based on its molecular structure and concentration in the formulation. Adjustments in pH, temperature, or the addition of other ingredients may be needed to optimize its thickening effect.

Catalysts work by providing an alternative pathway with lower activation energy for a reaction to occur, thus speeding up the rate of the reaction. They do not get consumed in the reaction and can be used repeatedly. This process lowers the overall energy required for the reaction to proceed.

To get a job in a chemical plant, you typically need a degree in chemical engineering or a related field. Gain relevant experience through internships or co-op programs, and consider obtaining certifications in areas like process safety management. Network with professionals in the industry and apply for entry-level positions at chemical plants to start your career.

Some factors that can speed up biochemical reactions include higher temperature, increased concentration of reactants, the presence of catalysts, and enzymes. These factors can increase the likelihood of successful collisions between reactants and subsequently accelerate the reaction rate.

Nanoparticles have a high surface area-to-volume ratio, which makes them highly active in catalytic reactions. Their small size allows for better dispersion and accessibility of active sites. Additionally, their unique properties can enhance catalytic activity and selectivity, making them efficient for industrial processes.

Yes, bacterial enzymes are different from human enzymes in terms of structure, function, and specificity. Bacterial enzymes may have evolved to function optimally in the bacterial cell environment and may catalyze reactions specific to bacterial metabolism. This is why bacterial enzymes are often used in industrial applications where their unique properties can be harnessed for various processes.

Catalysts are used in various industries like petrochemicals, pharmaceuticals, and environmental protection to increase the rate of chemical reactions without being consumed in the process. They are also used in automobile catalytic converters to help reduce emissions of harmful gases like carbon monoxide and nitrogen oxides.

The different ingredients have effects. The Ethanol/SD Alchohol is used as a sanitizer, Ispropyl Alchohol removes the odor, and the other ingredients are there as disinfectants (like 2-phenyphenol) and stuff like that. I hope this helps but someone else might know more. Try the official lysol website, it might give more info on the subject. :)

A biological catalyst increases the rate of biological processes/biological reactions.

A biological catalyst (enzymes) act to lower the activation energy of a chemical reaction.

Enzymes are bilogical catalysts that bind or separate substrates (chemicals the catalysts act on). the 'lock and key' model suggests that the enzyme doesn't change its form and only similarly shaped substrates can fit into the lock or cleft. it is similar to the toy children play with where you must fit the circular block into the circular hole and so on. The 'induced fit' model says thatthe enzyme molds itself around the substrate and separates or binds it from there. hope i helped!

No, freezing does not denature enzymes, however; it does slow the rate at which they are able to catalyse reactions. Denaturation is a permanent change in the conformation of an enzyme that renders it useless while freezing an enzyme only results in a temporary change.

1. Iron catalysts are used in the Haber process for ammonia synthesis.
2. Platinum catalysts are used in catalytic converters to convert harmful gases into less harmful ones.
3. Vanadium pentoxide is a catalyst used in the production of sulfuric acid.
4. Nickel catalysts are used in the hydrogenation of vegetable oils to produce margarine.