Biology Biology Practice Problems Solutions Library

Enzymes Solutions Library

Access 28 Enzymes video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Enzymes learn videos.

Browse Solutions

28 solutions

Enzymes

Q. Which of the following is NOT a characteristic of enzymes?A. Speed up reactionsB. Altered by the reactions they catalyzeC. Very specificD. Recycled...

Solved • Sep 29, 2018

Enzymes

Q. A hypothetical free energy curve for an enzymeatic reaction is shown. Curve A corresponds to uncatalyzed reaction and curve Bc orresponds to the ca...

Solved • Aug 23, 2018

Enzymes

Q. The _____ is defined as the protein portion of an enzyme exclusive of any organic or inorganiccofactors or prosthetic groups that might be required...

Solved • Aug 15, 2018

Enzymes

Q. Which of he following refers to the whole enzyme?A. apoenzymeB. holoenzymeC. cofactorD. coenzyme

Solved • Aug 15, 2018

Enzymes

Q. An enzyme _______.A. becomes part of the final productsB. is nonspecific for substratesC. is affected by heat and pHD. is consumed by the reaction

Solved • Aug 14, 2018

Enzymes

Q. All of the following would have an effect on an enzyme speed except _____.A. oxygen concentrationB. temperatureC. pHD. substrate concentrationE. co...

Solved • Aug 8, 2018

Enzymes

Q. Succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by malonic acid, which resembles succinate but...

Solved • Aug 6, 2018

Enzymes

Q. Why does pH affect enzyme activity?

Solved • Aug 2, 2018

Enzymes

Q. What is an enzyme's chemical nature and role in biochemical reactions?

Solved • Aug 1, 2018

Enzymes

Q. Enzymes are divided into six major classes, based on the type of reaction they catalyze. Based on this, in which enzyme do the β-lactamases belong?...

Solved • Jul 25, 2018

Enzymes

Q. Which of the following is/are true of enzymes?A. They are involved in almost all facets of a cell's metabolism.B. They function by lowering activat...

Solved • Jul 20, 2018

Enzymes

Q. Enzymes only work at certain temperatures, ionic strengths and pH ranges. Why? 

Solved • Jul 16, 2018

Enzymes

Q. Why does increasing the amount of enzyme increase the amount of products that can be produced per unit time?

Solved • Jun 29, 2018

Enzymes

Q. Name 5 environmental factors that influence enzyme activity.

Solved • Jun 20, 2018

Enzymes

Q. People often put on weight after a period of fasting (dieting) because fasting increases the activity of two major enzymes that are essential for f...

Solved • Jun 14, 2018

Enzymes

Q. Which of the following is true of enzymes?a. Enzyme function is independent of physical and chemical environmental factors such as pH and temperatu...

Solved • Jun 5, 2018

Enzymes

Q. The active site of an enzyme is the region that _________.a. binds allosteric regulators of the enzymeb. is involved in the catalytic reaction of t...

Solved • May 31, 2018

Enzymes

Q. What is an enzyme? What is activation energy? How are those terms related? Define enzymatic activity

Solved • May 24, 2018

Enzymes

Q.  Enzymes typicallya. raise the activation energy.b. bind non-specifically to the substrate.c. provide a microenvironment that inhibits the reaction...

Solved • Aug 4, 2017

Enzymes

Q. An enzyme is a protein that catalyzes chemical reactions. a. Trueb. False

Solved • Aug 2, 2017

Enzymes

Q. An enzyme is a lipid that catalyzes chemical reactions. a. Trueb. False

Solved • Aug 2, 2017

Enzymes

Q. The enzyme phosphokinase 1,4 alpha- aminohydratase catalyses the reaction protoporphyrin → hemoglobin → 1,3 diphosphoglycerate. The region of the e...

Solved • Jul 26, 2017

Enzymes

Q. The inorganic non-protein components that participate in enzyme catalysis are known as a. coenzymes b. cofactors c. end-products d. substrates ...

Solved • Jul 19, 2017

Enzymes

Q. The organic non-protein components that aid in enzyme functioning are called a. reactants b. cofactors c. coenzymes d. substrates e. products

Solved • Jul 19, 2017

Enzymes

Q. The specificity of an enzyme is due to its active site. The active site is shaped so that only a certain a. substrate molecule can fit into it b....

Solved • Jul 19, 2017

Enzymes

Q. Enzymes have specific ________ with which they interact.a. productsb. substratesc. reactantsd. atomse. end-products

Solved • Jul 19, 2017

Enzymes

Q. Protein catalysts that speed up the various metabolic biological reactions in an organism are called a. substrates b. cofactors c. reactants d....

Solved • Jul 19, 2017

Enzymes

Q. Chemical reactions can be influenced by a. temperature only b. concentration of reactants and products c. catalysts d. only a and b e. a, b, a...

Solved • Jul 18, 2017