Cell Energy and Enzymes REVIEW GAME

Enzymes and pH REVIEW GAMEMany names for enzymes end in the suffixA. acidB. oseC. aseD. hyde

Many names for enzymes end in the suffixA. acidB. oseC. aseD. hyde

What is the general function of enzymes within a cell?A) to promote the synthesis of monomersB) to induce chemical reactionsC) to stop chemical reactionsD) to speed up chemical reactionsWhat is the general function of enzymes within a cell?A) to promote the synthesis of monomersB) to induce chemical reactionsC) to stop chemical reactionsD) to speed up chemical reactionsA child is brought to the hospital with a fever of 107F. Doctors immediately order an ice bath to lower the child's temperature. Which of the following statements offers the most logical explanation for this action?Elevated body temperature will increase reaction rates in the child's cells and overload the limited number of enzymes found in the cell.

B) Elevated body temperatures may denature enzymes. This would interfere with the cell's abilities to catalyze various reactions.

C) Elevated body temperatures will increase the energy of activation needed to start various chemical reactions in the body. This will interfere with the ability of enzymes to catalyze vital chemical reactions.

D) Elevated body temperatures cause molecules to vibrate more quickly and prevent enzymes from easily attaching to reactants. This would slow vital body reactions.A child is brought to the hospital with a fever of 107F. Doctors immediately order an ice bath to lower the child's temperature. Which of the following statements offers the most logical explanation for this action?Elevated body temperature will increase reaction rates in the child's cells and overload the limited number of enzymes found in the cell.

B) Elevated body temperatures may denature enzymes. This would interfere with the cell's abilities to catalyze various reactions.

C) Elevated body temperatures will increase the energy of activation needed to start various chemical reactions in the body. This will interfere with the ability of enzymes to catalyze vital chemical reactions.

D) Elevated body temperatures cause molecules to vibrate more quickly and prevent enzymes from easily attaching to reactants. This would slow vital body reactions.The chemical reaction below depicts the hydrolysis of the disaccharide sucrose into two monosaccharides as catalyzed by the enzyme sucrase.Sucrose --> Fructose + Glucose.What is/are the substrate for this reactionA) SucroseB) SucraseC) Fructose D) GlucoseE) C and DThe chemical reaction below depicts the hydrolysis of the disaccharide sucrose into two monosaccharides as catalyzed by the enzyme sucrase.Sucrose --> Fructose + Glucose.What is/are the substrate for this reactionA) SucroseB) SucraseC) Fructose D) GlucoseE) C and DThe chemical reaction below depicts the hydrolysis of the disaccharide sucrose into two monosaccharides as catalyzed by the enzyme sucrase.Sucrose --> Fructose + Glucose.What is/are the product for this reactionA) SucroseB) SucraseC) Fructose D) GlucoseE) C and DThe chemical reaction below depicts the hydrolysis of the disaccharide sucrose into two monosaccharides as catalyzed by the enzyme sucrase.Sucrose --> Fructose + Glucose.What is/are the product for this reactionA) SucroseB) SucraseC) Fructose D) GlucoseE) C and DSubstrates bind to an enzyme's ________ site.A) allostericB) inhibitoryC) phosphateD) activeSubstrates bind to an enzyme's ________ site.A) allostericB) inhibitoryC) phosphateD) active The effect of temperature on the relative rate of action of an enzyme is represented in the graph below.

The optimum temperature for the action of this enzyme is approximately a. 15Cb. 22C c. 37C d. 50C

The effect of temperature on the relative rate of action of an enzyme is represented in the graph below.

The optimum temperature for the action of this enzyme is approximately a. 15Cb. 22C c. 37C d. 50C

Use the diagram below to answer the question.

Identify the parts involved.A and B are enzymes and C is the substrateC is the enzyme and A and B are the substrates.A is the enzyme, B is the monomer and C is the polymerA and B are the substrates and C is the polymer

Use the diagram below to answer the question.

Identify the parts involved.A and B are enzymes and C is the substrateC is the enzyme and A and B are the substrates.A is the enzyme, B is the monomer and C is the polymerA and B are the substrates and C is the polymer

The enzyme salivary amylase will act on starch but not on protein. This action illustrates that salivary amylaseA. contains starchB. is not reusableC. is substrate specificD. lacks protein

The enzyme salivary amylase will act on starch but not on protein. This action illustrates that salivary amylaseA. contains starchB. is not reusableC. is substrate specificD. lacks protein

A person may become lactose intolerant if their intestinal glands do not produce enoughA. maltase enzymeB. lactase enzymeC. lactose enzymeD. maltose enzyme

A person may become lactose intolerant if their intestinal glands do not produce enoughA. maltase enzymeB. lactase enzymeC. lactose enzymeD. maltose enzyme

When an enzyme catalyzes a reaction,A) it lowers the activation energy of the reaction.B) it raises the activation energy of the reaction.C) it acts as a reactant.D) it is used once and discarded.When an enzyme catalyzes a reaction,A) it lowers the activation energy of the reaction.B) it raises the activation energy of the reaction.C) it acts as a reactant.D) it is used once and discarded.Which of the following statements regarding enzymes is true?A) Enzymes are inorganic.B) An enzyme's function is unaffected by changes in pH.C) Enzymes catalyze specific reactions.D) Enzymes slow down the rate of a chemical reaction.Which of the following statements regarding enzymes is true?A) Enzymes are inorganic.B) An enzyme's function is unaffected by changes in pH.C) Enzymes catalyze specific reactions.D) Enzymes slow down the rate of a chemical reaction.Heating inactivates enzymes byA) breaking the covalent bonds that hold the molecule together.B) removing phosphate groups from the enzyme.C) causing enzyme molecules to stick together.D) changing the enzyme's three-dimensional shape.Heating inactivates enzymes byA) breaking the covalent bonds that hold the molecule together.B) removing phosphate groups from the enzyme.C) causing enzyme molecules to stick together.D) changing the enzyme's three-dimensional shape.The active site of an enzyme isA) the region of a substrate that is changed by an enzyme.B) the highly changeable portion of an enzyme that adapts to fit the substrates of various reactions.C) the region of an enzyme that attaches to a substrate.D) the region of a product that detaches from the enzyme.The active site of an enzyme isA) the region of a substrate that is changed by an enzyme.B) the highly changeable portion of an enzyme that adapts to fit the substrates of various reactions.C) the region of an enzyme that attaches to a substrate.D) the region of a product that detaches from the enzyme.Which of the following characteristics of protein will remain intact if the protein is denatured?A) the shape of the proteinB) the function of the proteinC) the number of amino acids in the proteinD) the binding properties of the proteinWhich of the following characteristics of protein will remain intact if the protein is denatured?A) the shape of the proteinB) the function of the proteinC) the number of amino acids in the proteinD) the binding properties of the proteinThe shape of the _______________ on the enzyme determines to which ___________________ the enzyme can bind. active area; substrateactive site; productloading dock; organelleactive site; substrateThe shape of the _______________ on the enzyme determines to which ___________________ the enzyme can bind. active area; substrateactive site; productloading dock; organelleactive site; substrateThere are many different enzymes located in a single cell. Why do enzymes catalyze a specific reaction?

Most enzymes can catalyze many different reactions.The shape of the enzymes active site determines to which substrate the particular enzyme can bind.Enzymes are transported to specific substrates (reactants) by ribosomes.

There are many different enzymes located in a single cell. Why do enzymes catalyze a specific reaction?

Most enzymes can catalyze many different reactions.The shape of the enzymes active site determines to which substrate the particular enzyme can bind.Enzymes are transported to specific substrates (reactants) by ribosomes.

List at LEAST THREE environmental factors that affect the reaction rate of an enzyme:_______________________________________________________________

List at LEAST THREE environmental factors that affect the reaction rate of an enzyme:pHTEMPERATURECONCENTRATION OF SUBSTRATECONCENTRATION OF ENZYMESALT CONCENTRATIONWhen an enzyme has become misfolded or unfolded and can no longer perform its function, we say that the enzyme is _____________________. When an enzyme has become misfolded or unfolded and can no longer perform its function, we say that the enzyme is DENATURED. List TWO environmental factors that tend to denature enzymes:__________________________________________List TWO environmental factors that tend to denature enzymes:Changes in pHINCREASE IN TEMPERATUREChanges in SALT CONCENTRATIONWhich of the following statements about enzymes is false?A) They increase the rate of chemical reactions.B) They function as chemical catalysts.C) They regulate virtually all chemical reactions in a cell.D) They are monomers used to build proteins.Which of the following statements about enzymes is false?A) They increase the rate of chemical reactions.B) They function as chemical catalysts.C) They regulate virtually all chemical reactions in a cell.D) They are monomers used to build proteins.When you add acid to a solution, _____.

the hydrogen ion concentration increases and lowers the pH the hydrogen ion concentration decreases and raises the pH the hydrogen ion concentration increases and raises the pH the hydrogen ion concentration decreases and lowers the pHWhen you add acid to a solution, _____.

the hydrogen ion concentration increases and lowers the pH the hydrogen ion concentration decreases and raises the pH the hydrogen ion concentration increases and raises the pH the hydrogen ion concentration decreases and lowers the pHGrapefruit juice is approximately pH 3, and tomato juice is approximately pH 4. A glass of grapefruit juice contains _____ H+ as a glass of tomato juice. half as much ten times as much one-tenth as much twice as muchGrapefruit juice is approximately pH 3, and tomato juice is approximately pH 4. A glass of grapefruit juice contains _____ H+ as a glass of tomato juice. half as much ten times as much one-tenth as much twice as muchA pH of 6 is how many times more acidic than a pH of 9? 3 100 3001,000

A pH of 6 is how many times more acidic than a pH of 9? 3 100 3001,000An acid is _____.

a solution with a pH between 7 and 14 a material that resists pH changes any compound that accepts hydrogen ions a compound that donates hydrogen ions to a solution

An acid is _____.

a solution with a pH between 7 and 14 a material that resists pH changes any compound that accepts hydrogen ions a compound that donates hydrogen ions to a solution

Adding a base tends to _____ of a solution. increase the hydrogen ion concentration and increase the pH lower hydrogen ion concentration and increase the pH lower hydrogen ion concentration and lower the pH increase hydrogen ion concentration and lower the pH

Adding a base tends to _____ of a solution. increase the hydrogen ion concentration and increase the pH lower hydrogen ion concentration and increase the pH lower hydrogen ion concentration and lower the pH increase hydrogen ion concentration and lower the pH

Which of the following statements about pH is true?A) The pH scale is a measure of oxygen ion concentration.B) A single unit change on the pH scale is equivalent to a 1% change in hydrogen ion concentration.C) An increase in hydrogen ion concentration means a decrease in pH scale units.D) Basic pH levels are less than 7.

Which of the following statements about pH is true?A) The pH scale is a measure of oxygen ion concentration.B) A single unit change on the pH scale is equivalent to a 1% change in hydrogen ion concentration.C) An increase in hydrogen ion concentration means a decrease in pH scale units.D) Basic pH levels are less than 7.