Enzymes catalyze chemical reactions by Altering the equilibrium point of a reaction Making a non-spontaneous reaction...

Enzymes catalyze chemical reactions by

Altering the equilibrium point of a reaction
Making a non-spontaneous reaction spontaneous
Stabilizing the transition state
Being used up in the chemical reaction

Disulfide bridges are formed by

Cysteine side chains hydrogen-bonded
Methionine side chains covalently bonded
Cysteine side chains covalently bonded
Methionine side chains hydrogen-bonded

DNA is a polymer of ______ while proteins are polymers of _______

Glucose, acetyl-CoA
Nucleotide, amino acids
Nucleotides, fatty acids
Sugars, amino acids

Expert Solution

Enzymes catalyse the chemical reactions by-

Answer: C. Stabilizing the transition state

Enzymes decreases the activation energy required for a reaction to occur, that means energy of transition state will be lowered

Disulfidebridges are formed by

Answer: C. Cysteine side chains covalently bonded

The thiol groups of cysteine residues undergo oxidative folding to give disulfide bridges in some of the proteins

DNA is a polymer of............. While proteins are polymers of.......

Answer: B. Nucleotide, amino acids

Proteins are the polymers of amino acids

Nucleotides are building blocks of DNA. These nucleotides are a combination of sugar group, nitrogen base and phosphate group

queen_honey_blossom answered 2 years ago

7. Chemical reactions are reversible, however enzymes can catalyze a reaction reversibly or irreversibly. Document each...

7. Chemical reactions are reversible, however enzymes can catalyze a reaction reversibly or irreversibly. Document each of these characteristics through graphic examples

Theory of enzymes: True or False: ___ Enzymes catalyze reactions by increasing the reaction free energy...

Theory of enzymes: True or False: ___ Enzymes catalyze reactions by increasing the reaction free energy ___ Enzyme are remarkable for their substrate specificity. ___ Enzyme can convert light energy into chemical or mechanical energy ___ Catalytic residues in enzymes can include amino acid side chains, RNA bases, and other organic cofactors ___ Michaelis-Menten kinetic theory only applies to enzymes with single substrates ___ Enzymes bind transition-state analogs more tightly than substrates ___ At high substrate concentration, reactions are rare-limited...

Do Enzymes in the digestive tract catalyze hydrolysis reactions.

Many proteins are enzymes (they catalyze reactions). Thus, it is necessary to review how reactions take...

Many proteins are enzymes (they catalyze reactions). Thus, it is necessary to review how reactions take place. Reduced organic compounds tend to contain stored energy in C–H bonds. As a general rule, the greater the number of C–H bonds, the greater the amount of potential energy stored in the molecule. Answer each question in the chart as it relates to the two reactions shown at the top. Be sure to be prepared to explain the reasoning behind your answers. Reaction...

Describe two enzymes important for vision. What are the reactions that catalyze (no structures are necessary)...

Describe two enzymes important for vision. What are the reactions that catalyze (no structures are necessary) and how do they contribute to the vision process?

3. Chemical reactions and equilibrium constants (a) An alternative way of writing the reaction for the...

3. Chemical reactions and equilibrium constants (a) An alternative way of writing the reaction for the dissolution of CdCO3(s) is to form the species HCO3- rather than CO32-. Write a balanced chemical reaction for CdCO3(s) dissolution with HCO3- rather than CO32- as a product species. Calculate an equilibrium constant and standard free energy of reaction for your new reaction. You will need to look up some equilibrium constants. (b) How would you decide which reaction to use to describe the...

1)Which of the following is true of enzyme characteristics? (a) enzymes catalyze reactions when a substrate...

1)Which of the following is true of enzyme characteristics? (a) enzymes catalyze reactions when a substrate binds to the allosteric site (b) enzymes catalyze reactions by increasing the activation energy (c) enzymes do not exhibit specificity and a single enzyme can catalyze various different reactions (d) enzymes lower the activation energy of specific reactions, speeding up the reaction rate 2) Microbial growth is measured by what parameter? (a) increased cell size (b) increased size of cellular components (c) increase in...

1. The equilibrium point of any chemical reaction represents the most energetically stable state in the...

1. The equilibrium point of any chemical reaction represents the most energetically stable state in the continuum of conditions between pure reactants and pure products. Explain, using the concept of enthalpy (energy) of reaction, why this is the case.

Use the following half-reactions to write three spontaneous reactions, and calculate E cell for each reaction:...

Use the following half-reactions to write three spontaneous reactions, and calculate E cell for each reaction: a. Au+ (aq) + e- ----> Au (s) E= 1.69 V b. N2O (g) + 2H+ (aq) + 2 e- ----> N2 (g) + H2O (l) E= 1.77 V c. Cr3+ (aq) + 3e- ---> Cr (s) E= -0.74 V

The criterion for a spontaneous chemical reaction is: a) ΔrG < 0 b) ΔrS = 0...

The criterion for a spontaneous chemical reaction is: a) ΔrG < 0 b) ΔrS = 0 c) ΔrH > 0 d) ΔrG = 0

Question