Enzymes and catalysts similarities -Biology

Enzymes and catalysts similarities -Biology
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Which is not true about inorganic catalysts and enzymes? (A) They are specific (B) Inorganic catalysts require specific not needed by enzymes (C) They are sensitive to pH (D) They speed up the rate of chemical reaction

Description : Which is not true about inorganic catalysts and enzymes? (A) They are specific (B) Inorganic catalysts require specific not needed by enzymes (C) They are sensitive to pH (D) They speed up the rate of chemical reaction

Last Answer : Answer : B

Enzymes are different from catalysts in (A) Being proteinaceous (B) Not used up in reaction (C) Functional at high temperature (D) Having high rate of diffusion

Description : Enzymes are different from catalysts in (A) Being proteinaceous (B) Not used up in reaction (C) Functional at high temperature (D) Having high rate of diffusion

Last Answer : Answer : A

Proteinous substances which catalyze biochemical reactions are known as (A) Activators (B) Catalysts (C) Enzymes (D) Hormones

Description : Proteinous substances which catalyze biochemical reactions are known as (A) Activators (B) Catalysts (C) Enzymes (D) Hormones

Last Answer : Answer : C

Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Description : Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Last Answer : (2) enzymes Explanation: Fermentation in food processing typically is the conversion of carbohydrates to alcohols and carbon dioxide or organic acids using yeasts, bacteria, or a combination there ... to lactic acid. Alcoholic fermentation follows the same enzymatic pathway for the first 10 steps.

Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in (A) Blood (B) Saliva (C) Intestine (D) Gland

Description : Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in (A) Blood (B) Saliva (C) Intestine (D) Gland

Last Answer : (B) Saliva

Enzymes are organic catalysts used in the __________ reactions. (A) Chemical (B) Biochemical (C) Photochemical (D) Electrochemical

Description : Enzymes are organic catalysts used in the __________ reactions. (A) Chemical (B) Biochemical (C) Photochemical (D) Electrochemical

Last Answer : (B) Biochemical

Pick out the wrong statement. (A) ****, *** & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively (B) Protein catalysts are called enzymes (C) The rate of chemical reaction is independent of the concentration of reactants at high concentration of enzymes (D) Total sugar content in molasses is about 10%

Description : Pick out the wrong statement. (A) Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively (B) Protein catalysts are called enzymes (C) The rate ... concentration of reactants at high concentration of enzymes (D) Total sugar content in molasses is about 10%

Last Answer : (D) Total sugar content in molasses is about 10%

Fermentation is a process of decomposition of an organic compound by : (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Description : Fermentation is a process of decomposition of an organic compound by : (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Last Answer : enzymes

In the 18th century Carl Linnaeus started classifying organisms based a. Similarities in form b. DNA c. RNA d. Enzymes

Description : In the 18th century Carl Linnaeus started classifying organisms based a. Similarities in form b. DNA c. RNA d. Enzymes

Last Answer : a. Similarities in form

What is the relationship between catalysts and the collision theory of reactions?

Description : What is the relationship between catalysts and the collision theory of reactions?

Last Answer : Perhaps you should attend your classes, instead of trying to get us to do your homework? It seems like every single question that you ask is homework based. If you honestly do not understand the material, talk to the teacher. Talk to other people in your class. Read the textbook. STOP asking us.

What organic molecule function as a catalysts for chemical reactions in living organisms?

Description : What organic molecule function as a catalysts for chemical reactions in living organisms?

Last Answer : They are called enzymes, but there a probably billions of different enzymes. They are built from protein molecules decorated with sugars and sometimes include one or more metal atoms at their "active" site.

(4) None of these Explanation: Catalysis is the change in rate of a chemical reaction due to the participation of a substance called a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. A catalyst may participate in multiple chemical transformations. Catalysts that speed the reaction are called positive catalysts.

Description : (4) None of these Explanation: Catalysis is the change in rate of a chemical reaction due to the participation of a substance called a catalyst. Unlike other reagents that ... may participate in multiple chemical transformations. Catalysts that speed the reaction are called positive catalysts.

Last Answer : Table salt gets moist during rainy season because – (1) sodium chloride is hygroscopic (2) sodium chloride is deliquescent (3) sodium chloride contains some quantity of sodium iodide (4) sodium chloride contains hygroscopic impurities like magnesium chloride

Substances that cause a reaction to occur or proceed at a different rate without the reaction itself being affected are called - (1) Catalysts (2) Hydrocarbons (3) Oxidising agents (4) Substitutes

Description : Substances that cause a reaction to occur or proceed at a different rate without the reaction itself being affected are called - (1) Catalysts (2) Hydrocarbons (3) Oxidising agents (4) Substitutes

Last Answer : (1) Catalysts Explanation: Catalysts are substances that cause a reaction to occur or proceed at a different rate without the reaction itself being affected. Eg: hydrogenation of vegetable oils using a nickel catalyst.

Pick out the wrong statement. (A) Alkylation produces a larger iso-paraffin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin (B) Catalytic alkylation processes use HF, AlCl3 & H2SO4 as Catalysts (C) All the alkylation processes use very high temperature (> 1000°C) (D) Gasoline having an octane number of 90 can be produced by alkylation process

Description : Pick out the wrong statement. (A) Alkylation produces a larger iso-paraffin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin (B) Catalytic alkylation processes use HF ... (> 1000°C) (D) Gasoline having an octane number of 90 can be produced by alkylation process

Last Answer : (C) All the alkylation processes use very high temperature (> 1000°C)

Which type of metals act as effective catalysts ?

Description : Which type of metals act as effective catalysts ?

Last Answer : Ans. Transition metals. 

Name three biochemical catalysts found in the human body.

Description : Name three biochemical catalysts found in the human body. 

Last Answer : Solution: Biochemical catalysts found in the human body are: 1. Pepsin 2. Trypsin 3. Lipase.

Pick out the wrong statement. (A) Use of different catalysts in a reversible catalytic chemical reaction does not change the equilibrium composition (B) Alumina is added as a promoter to iron catalyst in ammonia synthesis reaction (C) Activation energy for a reaction is obtained from the intercept of the Arrhenius plot (D) Presence of inerts affects the equilibrium conversion of reactants in a chemical reaction

Description : Pick out the wrong statement. (A) Use of different catalysts in a reversible catalytic chemical reaction does not change the equilibrium composition (B) Alumina is added as a promoter to ... Arrhenius plot (D) Presence of inerts affects the equilibrium conversion of reactants in a chemical reaction

Last Answer : (C) Activation energy for a reaction is obtained from the intercept of the Arrhenius plot

Organic catalysts differ from the inorganic catalyst in the sense that the former is (A) Active at cryogenic temperatures only (B) Prohibitively costly (C) Proteinous in nature (D) Active at very high temperature only

Description : Organic catalysts differ from the inorganic catalyst in the sense that the former is (A) Active at cryogenic temperatures only (B) Prohibitively costly (C) Proteinous in nature (D) Active at very high temperature only

Last Answer : (C) Proteinous in nature

In autocatalytic reactions, (A) One of the reactants acts as a catalyst (B) One of the products acts as a catalyst (C) Catalysts have very high selectivity (D) No catalyst is used

Description : In autocatalytic reactions, (A) One of the reactants acts as a catalyst (B) One of the products acts as a catalyst (C) Catalysts have very high selectivity (D) No catalyst is used

Last Answer : (B) One of the products acts as a catalyst

. Photo-chemical reactions occur in presence of (A) Sunlight (B) Darkness (C) Solid catalysts (D) Monochromatic radiation only

Description : . Photo-chemical reactions occur in presence of (A) Sunlight (B) Darkness (C) Solid catalysts (D) Monochromatic radiation only

Last Answer : (A) Sunlight

Consider the production of ammonia from methene and air as raw materials. The catalysts used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis. (A) (i) - Ni/Al2O3 ; (ii) - Cu - ZnO/Al2O3 (B) (i) - Fe/Al2O3 ; (ii) - Cu - ZnO/Al2O3 (C) (i) - Ni/Al2O3 ; (ii) - Fe/Al2O3 (D) (i) - Fe/Al2O3 ; (ii) - Ni/Al2O3

Description : Consider the production of ammonia from methene and air as raw materials. The catalysts used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis. (A) (i) - Ni/Al2O3 ; (ii) - Cu - ZnO/ ... (i) - Ni/Al2O3 ; (ii) - Fe/Al2O3 (D) (i) - Fe/Al2O3 ; (ii) - Ni/Al2O3

Last Answer : (C) (i) - Ni/Al2O3 ; (ii) - Fe/Al2O3

Stereospecific agents are exemplified by (A) Radiation (B) Supported metal oxide catalysts (C) Ziegler catalysts (D) All (A), (B) & (C)

Description : Stereospecific agents are exemplified by (A) Radiation (B) Supported metal oxide catalysts (C) Ziegler catalysts (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Pick up the correct statement from the following: (A) Catalysts are added to assist and accelerate the hardening of resin (B) The fillers are inert materials and they impart strength and hardness (C) Fibrous fillers increase thermal resistance (D) All the above

Description : Pick up the correct statement from the following: (A) Catalysts are added to assist and accelerate the hardening of resin (B) The fillers are inert materials and they impart strength and hardness (C) Fibrous fillers increase thermal resistance (D) All the above

Last Answer : Answer: Option D

Which of the following is incorrect about heterogeneous catalysis? a. The most effective catalysts are those which have small surface area b. Seperation of catlyst is easy c. Increase in the rate of reaction is due to decrease in the activation energy d. It is based upon the phenomenon of adsorption

Description : Which of the following is incorrect about heterogeneous catalysis? a. The most effective catalysts are those which have small surface area b. Seperation of catlyst is easy c. Increase in the rate of reaction is due to decrease in the activation energy d. It is based upon the phenomenon of adsorption

Last Answer : a. The most effective catalysts are those which have small surface area

Which one of the following statements regarding a catalyst is not correct? A An enzyme is a catalyst that only binds certain substrates. B An enzyme is a protein that is a highly efficient catalyst for one or more chemical reactions in a living system. C Catalysts increase the rate of a reaction by altering the mechanism, thereby increasing the activation energy. D Catalysts do not alter the equilibrium constant for a chemical reaction.

Description : Which one of the following statements regarding a catalyst is not correct? A An enzyme is a catalyst that only binds certain substrates. B An enzyme is a protein that is a highly ... increasing the activation energy. D Catalysts do not alter the equilibrium constant for a chemical reaction.

Last Answer : C Catalysts increase the rate of a reaction by altering the mechanism, thereby increasing the activation energy.

Name any two catalyst’s used for manufacturing of Sulfuric acid.

Description : Name any two catalyst’s used for manufacturing of Sulfuric acid. 

Last Answer : Catalyst used for manufacturing of sulfuric acid Platinum Vanadium Pent oxide 

The Rate Law expresses the rate of a reaction in terms of the concentrations of the: w) reactants x) products y) by-products z) catalysts

Description : The Rate Law expresses the rate of a reaction in terms of the concentrations of the: w) reactants x) products y) by-products z) catalysts

Last Answer : ANSWER: W -- REACTANTS 

What are the similarities between plant cells and animal cells? -Biology

Description : What are the similarities between plant cells and animal cells? -Biology

Last Answer : The cell is the fundamental unit of life. All the life activities are carried out by cells. The organisms are classified based on the number of cells present in them. Unicellular organisms are single- ... from about 10 - 30 micrometres and that of plant cell range between 10 - 100 micrometres.

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Description : Similarities between plant cells and animal cells? -Biology

Last Answer : Plant CellsStructurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum ... as storage for nutrients or, as mentioned, provide a place to degrade unwanted substances.

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Description : Similarities between lenticels and stomata. -Biology

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Description : Similarities between the bryophytes and the algae? -Biology

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Description : Similarities between bryophytes and pteridophytes? -Biology

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Description : What is similarities between biology and economy?

Last Answer : Need answer

Do you see any similarities between the 1957-58 flus pandemic and covid?

Description : Do you see any similarities between the 1957-58 flus pandemic and covid?

Last Answer : No. Thanks for sharing. Look up black plague, if you are interested. Around 13th century in England. Very creepy.

When you compare the US to the UK, what significant similarities or differences do YOU note?

Description : When you compare the US to the UK, what significant similarities or differences do YOU note?

Last Answer : Well, the biggest difference is, of course, the language. In England, they speak correct English.

What are the differences , and similarities, between a role playing games pub and real life?

Description : What are the differences , and similarities, between a role playing games pub and real life?

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Can you think of any similarities between Trump and Kim Jong-Un?

Description : Can you think of any similarities between Trump and Kim Jong-Un?

Last Answer : I was just going to say the weird hairstyles right now :(

What are the biggest similarities between London and NYC?

Description : What are the biggest similarities between London and NYC?

Last Answer : answer:I have spent a few weeks in both. And I absolutely hate both. Both seem like people are in a huge hurry and fuck everyone else. But it is 100 times worse in NYC. I have no desire to ... more fun and interesting than NYC. I really hate both cities. Right now SE 20th and Powell makes me happy.

Would anyone care to state their support for the idea that the movie Little Man has striking similarities to a certain Looney Tunes episode?

Description : Would anyone care to state their support for the idea that the movie Little Man has striking similarities to a certain Looney Tunes episode?

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Description : Anyone else noticed the plot similarities between the Eldest trilogy and Star Wars?

Last Answer : answer:You mean Christopher Paolini’s Inheritance Cycle? I kind of want to read it, but at the same time I feel like I should’ve read it when I was 13 and now it’s too late :P Almost every review I’ve read says something about it being a rip-off of other, better fantasy, including Star Wars.

What are the differences and similarities between Communism and Marxism?

Description : What are the differences and similarities between Communism and Marxism?

Last Answer : answer:Both came out of the head of Karl Marx-similarity Marxism is a term to refer to an abstraction - the philosophical system created by Karl Marx. Communism is a term to refer to a ... - difference. Example- Christianity as an abstract notion, Catholicism as a form of practice of Christianity.

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Description : What similarities and what differences are there between us and the Romans?

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Description : How important would you say that cultural similarities are to a national identity?

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Mention two similarities between Tommie Smith and John Carlos. -SST 10th

Description : Mention two similarities between Tommie Smith and John Carlos. -SST 10th

Last Answer : (a) Both were African-Americans. (b) Both were athletes.