Regulation of metabolic pathways most typically occurs at enzyme steps that are thermodynamically downhill and internal to the pathway. thermodynamically uphill and at the beginning or end of the pathway. thermodynamically downhill and at the beginning or end of the pathway. thermodynamically uphill and internal to the pathway.

Regulation of metabolic pathways most typically occurs at enzyme steps that are thermodynamically downhill and internal to the pathway. thermodynamically uphill and at the beginning or end of the pathway. thermodynamically downhill and at the beginning or end of the pathway. thermodynamically uphill and internal to the pathway.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter3: Cells And How They Work

Section: Chapter Questions

Problem 7SQ: Which of the following statements is not true? Metabolic pathways _____. a. occur in a stepwise...

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Which of the following statements is not true? Metabolic pathways _____. a. occur in a stepwise series of chemical reactions b. are speeded up by enzymes c. may break down or assemble molecules d. always produce energy (such as ATP)
Which 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 pathways
The synthesis of enzymes in response to changing metabolicneeds is referred to as _____________________.
Correlate the major Metabolic Pathways
Which of the following describes the critical role that ATP plays in cellular metabolism? ATP serves an energy shuttle in the cell, coupling exergonic anf exergonic reactions. The terminal phosphate group of ATP is attached by a particular strong covalent bond that releases extra energy when broken. It is one of the four building blocks for RNA synthesis. Hydrolysis of ATP provides energy to drive exergonic reactions in the cell.
Why must metabolic pathways be regulated? Cite three ways by which metabolic pathways are regulated.
A metabolic pathway that functions in both anabolic andcatabolic processes is called an _____________________pathway.
Which of the following is the most comprehensive definition of metabolism in living organisms? Metabolism manages the increase in entropy in an organism Metabolism consists of all the energy transformation reactions in an organism Metabolism refers to the sum of all biochemical pathways involved in the synthesis of macromolecules Metabolism depends on a constant supply of energy from food
Discuss the following statement: “enzymes and heat are alike in that both can speed up reactions that—although thermodynamically feasible—do not occur at an appreciable rate because they require a high activation energy. diseases that seem to benefit from the careful application of heat—in the form of hot chicken soup, for example—are therefore likely to be due to the insufficient function of an enzyme.”
The term given to the metabolic processes coupling the removal of electrons and protons from NADH/FADH2 to energy (ATP) production in the mitochondria is called _____________________ Group of answer choices glycolysis creatine phosphate shuttle indirect calorimetry oxidative -phosphorylation
Which is both an input and an output of a metabolic pathway? Acetyl-CoA Oxaloacetate Citrate GTP
_____________ pathways can function in both anabolic and catabolic processes.