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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

What type of catalysts effect biochemical reactions?

Enzymes are the most common type of catalyst that affect biochemical reactions. They are proteins that facilitate specific chemical reactions in living organisms, speeding up the reaction without being consumed in the process.

Is oxygen an enzyme?

No, oxygen is not an enzyme. Oxygen is a gas that is essential for life as it is involved in the process of respiration, but it does not function as an enzyme. Enzymes are proteins that act as catalysts for chemical reactions in living organisms.

What does a catalyst do to the rate of a chemical reaction?

A catalyst is a substance that speeds up the rate of a chemical reaction without changing the substance. It does this by reducing the minimal reaction energy. A catalyst is not used up in a reaction therefore they last indefinitely.

What is accelerated but not used up?

Friction is a force that accelerates objects by opposing their motion, but it does not use up the objects themselves.

What are functions of RNA in bacteria?

1) Acts as catalysts for most biochemical reactions

2) Acts as a carrier for amino acids during protein synthesis

3) Acts as a transmitter of genetic information to offspring

4) Acts as a template in protein synthesis.

Enzymes have optimal temperatures.most human enzymes have an optimal temperature of about?

The optimal temperature of enzymes in humans is about 37c, the same as the human body's temperature. However, some enzymes work at higher temperatures than 37 but not very high because higher temperatures denatures (destroy) the enzymes.

What acts as a catalyst in biochemical reactions?

Biochemical reactions are the reactions taking place in the Biological systems. The biological systems contains proteins whose one of the main functions is to catalyse the reactions. The proteins involved in such type of reactions are called as an enzyme. The enzymes catalyse the reactions by lowering the activation energy (energy required to attain the transition state) and helps in the conversion of substrate into the required product.

How can you identify an element from its name and formulae?

To identify an element from its name, you can refer to the periodic table where elements are listed by their names. From its formula, you can identify the element by breaking down the formula to see which elements are present and their proportions. Additionally, you can use reference materials such as chemistry textbooks or online resources to cross-reference the name and formula to determine the element.

What proteins act as biochemical catalysts?

Enzymes are proteins that act as biochemical catalysts in living organisms. They play a crucial role in speeding up chemical reactions by lowering the activation energy required for the reactions to occur.

What is conjugated enzymes?

Conjugated enzymes are proteins that have a non-protein component attached to them, such as a metal ion or a coenzyme. This non-protein component is necessary for the enzyme to function properly and can help in catalyzing chemical reactions. Examples of conjugated enzymes include heme-containing enzymes like cytochrome c and flavoproteins like succinate dehydrogenase.

Does tight binding between enzyme and its substrate imply rapid catalysis?

All catalysts, enzyme work via the lowering of the activation energy for a reaction this causes the rate of the reaction to increase dramatically. Should be noted that most enzyme with tight binding reactions rates are millions of times faster than those of of catalyst similar reactions. causing rapid catalysis

What is a real life example of using a catalyst?

A common real-life example of using a catalyst is in vehicles equipped with catalytic converters. These converters use catalysts to convert harmful pollutants in exhaust gases into less harmful substances before they are released into the environment. This helps reduce air pollution and improves air quality.

What is an anaerobic enzyme?

Anaerobic enzymes are those that function in the absence of oxygen. They help facilitate metabolic processes in environments where oxygen is limited or absent, such as during anaerobic respiration in cells. These enzymes are crucial for generating energy and carrying out essential chemical reactions without relying on oxygen as an electron acceptor.

What is an endogenous enzyme?

An endogenous enzyme is an enzyme that is naturally produced within an organism's cells to carry out specific chemical reactions. These enzymes play key roles in various metabolic processes and are essential for maintaining normal physiological functions in the body.

Where are the enzymes of photosynthesis?

The enzymes involved in photosynthesis are primarily found in the chloroplasts of plant cells. These enzymes are responsible for catalyzing the chemical reactions that convert sunlight, water, and carbon dioxide into energy in the form of sugars.

The primary function of an enzyme or any biological catalyst is to?

The primary function of an enzyme or any biological catalyst is to increase the rate of a chemical reaction by lowering the activation energy barrier, thereby facilitating the conversion of substrate molecules into products. This process allows cells to efficiently carry out metabolic reactions necessary for growth, maintenance, and energy production.

Do the presence of an enzyme catalyst will affect the time taken for a reaction to reach equilibrium?

An enzyme catalyst will lower the amount of energy required to preform a reaction.

This in turn, will make it much easier for the reaction to start.

So yes, it will let a reaction reach equilibrium quicker.

Other factors affecting the time of reaction are:

The concentration of the reactants, (the less volume and more pressure you have will increase the rate of reaction)

The PH level (especially important for biology reactions, protein enzymes are built for specific PH levels and will not work correctly if they are in another PH level, buffers can be used to stabilize pH levels)

The catalyst that triggers means what?

The catalyst that triggers refers to the event or factor that sets off a particular reaction or process. It is the initial stimulus that initiates a chain of events, often leading to a specific outcome or result.

Does a catalyst affect enthalpy of a reaction?

What effect does a catalyst have on the mechanism of a reaction? It usually binds to the reactant(s) and orients the reactants optimally to speed up the reaction. Remeber the lock and key model for enzymes? Or even how Heterogeneous catalysis work by holding onto the reactant to orient it correctly. Stop googling and start thinking.

What are the steps of enzyme catalysis?

well they react by the enzyme starting to dense together. creating a sort of "chemical reaction". example- Justin bieber and Selena Gomez. THEY SUCKK. i mean she is JUST using him. but he's caught in her LOVE gameee. so you are the H 2 my O LOOL getit? LMFAO bye

Restriction enzymes are specific in their identification of what?

Restriction enzymes are specific in their identification of DNA sequences called recognition sites, which are usually palindromic. When they encounter these specific sequences on a DNA molecule, they cleave the DNA at or near those sites. This specificity allows them to target and cut DNA at precise locations for genetic engineering applications.

Is glucose a catalyst?

No, glucose is not a catalyst. Glucose is a simple sugar that serves as a source of energy for living organisms through the process of cellular respiration. Catalysts are substances that speed up chemical reactions without being consumed in the process.

How does Hydrogen peroxide decomposes much faster in the presence of enzyme catalysts?

Enzymes act as catalysts by lowering the activation energy required for a chemical reaction to occur. In the case of hydrogen peroxide decomposition, enzymes such as catalase can significantly speed up the breakdown of hydrogen peroxide into water and oxygen. The enzyme provides an alternative reaction pathway that allows the decomposition to happen more rapidly.

Enzyme that digests starch will not act upon the sugar sucrose this fact is an indication that enzymes are?

highly specific in their substrate recognition and catalytic action. Enzymes usually recognize specific substrates based on their chemical structure, and their activity is tailored to that particular substrate. In this case, the enzyme that digests starch is not designed to interact with sucrose due to differences in their chemical structures.