Microbiology: Principles and Explorations
9th Edition
ISBN: 9781118743164
Author: Jacquelyn G. Black, Laura J. Black
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 5, Problem 6SQ
Summary Introduction
To examine: Whether the statement, “metabolic pathways rely on many enzymes to synthesize or catabolize substrates to an end product. Within a given metabolic pathway, a product can become another enzyme’s substrate” is true or false.
Introduction: The sum of all types of chemical processes that are carried out by the living organisms is referred to as
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which out of the following statements is true about the regulation of metabolic pathway?
a) Most of the metabolic pathways are regulated
b) Most of the metabolic pathways are not regulated
c) Regulation of metabolic pathways always involves changing the amount of enzymes
d) Metabolic regulation always depends on control by hormones
which of the following is a primary function of the active site of an enzyme?
Two substrates (A and B) are used to produce a certain biological product in an enzyme- catalyzed
reaction. It is found that both substrates must bind to the enzyme, first Substrate A, then Substrate
B before the product is produced.
What kind of kinetic mechanism is described?
Linear Reaction
Ordered Sequential Reaction
Random Sequential Reaction
Ping Pong Reaction
Chapter 5 Solutions
Microbiology: Principles and Explorations
Ch. 5 - How are photosynthesis and respiration related to...Ch. 5 - What is the main difference between...Ch. 5 - Distinguish between coenzyme and cofactor. How are...Ch. 5 - Prob. 2.2SCCh. 5 - Prob. 3.1SCCh. 5 - If four actual molecules of ATP are produced for...Ch. 5 - Prob. 3.3SCCh. 5 - Prob. 3.4SCCh. 5 - Prob. 4.1SCCh. 5 - What is returned to chlorophyll in cyclic...
Ch. 5 - What were probably the first kind of...Ch. 5 - What type of metabolism is characteristic of...Ch. 5 - Prob. 1CCSCh. 5 - Suppose that you had a culture known to contain...Ch. 5 - In what sequence might the different kinds of...Ch. 5 - Prob. 3CTQCh. 5 - Which of the following is not true about...Ch. 5 - Prob. 2SQCh. 5 - Prob. 3SQCh. 5 - Prob. 4SQCh. 5 - Prob. 5SQCh. 5 - Prob. 6SQCh. 5 - Prob. 7SQCh. 5 - Prob. 8SQCh. 5 - All of the following statements about competitive...Ch. 5 - Prob. 10SQCh. 5 - What is feedback inhibition? (a) When the end...Ch. 5 - Which of the following is true regarding the...Ch. 5 - Prob. 13SQCh. 5 - Prob. 14SQCh. 5 - During aerobic cell respiration most of the energy...Ch. 5 - The typical end products of complete aerobic cell...Ch. 5 - Prob. 17SQCh. 5 - The end products of photosynthesis in...Ch. 5 - Which of the following final electron acceptors is...Ch. 5 - Prob. 20SQCh. 5 - Prob. 21SQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- In a metabolic pathway, what is the rate-limiting reaction?arrow_forwardDescribe the role that compartmentation plays in the regulation of metabolic pathways. Provide several examples.arrow_forwardFor each of the statements below about the dUTPase enzyme, mark whether it is true or false. If it is false, change the language to make the statement true. _______If the dUTPase enzyme is the rate determining step in a larger metabolic pathway, the reaction likely lies near to equilibrium and is irreversible. _______For the dUTPase reaction, it is not likely that DG’ = DG°’ _______ dUTPase has a higher affinity for its substrate than for its product, but both of these are higher than the affinity for the transition state _______Kinetic analysis of dUTPase using Michaelis-Menten methods assumes that the formation of the E*S complex has a large negative value for DGarrow_forward
- Examine the figure below, which compares the energetics of a catalyzed and uncatalyzed reaction during the progress of the reaction from substrate (S) to product (P). The highest peak in such a diagram corresponds to the transition state, which is an unstable, high-energy arrangement of substrate atoms that is intermediate between substrate and product. The free energy required to surmount this barrier to the reaction is termed the activation energy. Enzymes function by lowering the activation energy, thereby allowing a more rapid approach to equilibrium. UNCATALYZED activation energy progress of reaction CATALYZED activation energy S ES | progress of reaction free energy free energyarrow_forwardRegarding the physical condition (characteristics of the solution/environment) in which an enzyme finds itself: sometimes enzymes are most active at a certain level and still active but to a lesser degree at a level above or below the optimal level. Describe the likely reason for the enzyme’s decrement in function at levels other than the optimal level?arrow_forwardThe active site of an enzyme is usually a groove or pocket on the surface that A) binds allosteric regulators of the enzyme. B) is involved in the catalytic reaction of the enzyme. C) is inhibited by the presence of a coenzyme or a cofactor.arrow_forward
- There are many metabolic pathways in a biological system, and it is critical to regulate these pathways so that only particular pathways are active at a single time. Which enzyme would be in the regulation point in the hypothetical pathway shown below. A¹B 2C 3 D4E A) A → B B) B-C C) C-D D) D→ E E) The regulation point is highly dependent upon the metabolic pathway.arrow_forwardWhich of the following is NOT true about metabolic pathways in general? They can be anabolic or catabolic They can be both energy-releasing (exergonic) and energy-requiring (endergonic) They are often made up of a series of chemical reactions They often have multiple different enzymes working in the same pathway Each metabolic pathway is entirely separate and does not interact or connect at all with other metabolic pathwaysarrow_forwardWhy must metabolic pathways be regulated? Cite three ways by which metabolic pathways are regulated.arrow_forward
- Many biosynthetic pathways are regulated by feedback control, where the product of a pathway turns off an enzyme that catalyzes an early step in the pathway. Usually, this control comes from an allosteric interaction. Of the types of reversible enzyme inhibition (Competitive inhibition, Noncompetitive inhibition, and Uncompetitive inhibition), what type is most likely to occur in a feedback control mechanism like this and why?arrow_forwardIn the metabolic pathway, A->B->C->D->E what effect would molecule E likely have on the enzyme that catalyzes A->B? (The answer is A. Could you justify the reason why the answer is A?) a) Allosteric inhibitor b)Allosteric activator c) Competitive inhibitor d) feedback activator e) coenzymearrow_forwardWhich of the following statements are true about enzyme regulation via noncovalent interactions? Select all that apply. Molecules can cause a change in enzyme shape because they're able to bind to the enzyme somewhere other than the active site The function of an enzyme is altered by a chemical change in its primary structure, which is called phosphorylation Molecules that are similar to the substrate in both size and shape can compete with the substrate for access to the enzyme's active site Molecules that are similar to the substrate in both size and shape can compete with the substrate for access to a location other than the active sitearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY