Concept explainers
Energy in ATP is used to power skeletal muscle contraction. This is an example of what type of energy conversion?
- a. chemical energy to mechanical energy
- b. light energy to mechanical energy
- c. chemical energy to light energy
- d. electrical energy to chemical energy
Introduction:
The skeletal system is that organ system that is related to movement. It is composed of skeletal muscles and bones. It consists of 206 bones, tendons, and ligaments. It also provides supports, production of blood cells, calcium storage and regulation of the endocrine system.
Answer to Problem 1DYKB
Correct answer:
Energy in ATP is utilized in providing strength to skeletal muscles for contraction. This is an example of conversion of chemical energy to mechanical energy. Therefore, option a. is correct.
Explanation of Solution
Reason for the correct statement:
Option a. is given as “chemical energy to mechanical energy”. Chemical energy is the energy that is stored in chemicals or compounds. Mechanical energy is that type of energy that is related to motion and position of anything or any organism. When there is a muscular contraction then there is the use of ATP which is a chemical compound. So, there is a conversion of stored chemical energy to mechanical energy as a result of which there is a contraction in the skeletal muscles. Hence, there is the conversion of chemical energy to mechanical energy in the case of muscular contraction.
Hence, option a. is correct.
Reasons for incorrect statements:
Option b. is given as “light energy to mechanical energy”. Energy stored in ATP is chemical energy and not light energy. Hence, option b. is incorrect.
Option c. is given as “chemical energy to light energy”. There is a use of mechanical energy and not light energy in the process of contraction of muscles. Hence, option c. is incorrect.
Option d. is given as “electrical energy to chemical energy”. In ATP there is chemical energy and not electrical energy. Hence, option d. is incorrect.
Hence, options b., c., and d. are incorrect.
In the process of contraction of muscles of the skeleton, there is the conversion of chemical to mechanical energy as the energy stored in ATP is chemical energy.
Want to see more full solutions like this?
Chapter 3 Solutions
ANATOMY+PHYSIOLOGY
- Does physical exercise to increase muscle mass involve anabolic and/or catabolic processes? Give evidence for your answer.arrow_forwardEnergy is defined as the ability to cause change. Which is the best reason why? Because energy influences everything. а. b. Because some form of energy is required to produce a change. С. Because energy is everywhere. d. Because energy can change forms.arrow_forwardWhat law of chemistry determines how much energy can be transferred when it is converted from one form to another? a. the first law of thermodynamics b. the second law of thermodynamics c. the conservation of matter d. the conservation of energyarrow_forward
- Which molecule has the greatest amount of potential energy? A. Pyruvate B. Oxygen C. Glucose D. CO2arrow_forwardWhat is a regulatory mechanism in which a reaction product slows or stops a metabolic pathway that produces it? A. Phosphorylation B. Feedback inhibition C. Electron transfer chain D. Coenzymearrow_forwardWhich of the following serves as an important energy carrier in cells? A. RNA B. DNA C. ATParrow_forward
- Which statement about the ATP synthase is false? a. It is a rotary machine b. It is located in the inner mitochondrial membrane c. It can make ATP, or it can break ATP down d. It only contains membrane-embedded regionsarrow_forwardWhich molecule has the greatest amount of potential energy? a. Pyruvate c. Glucose b. Acetyl CoA d. CO2arrow_forwardHow does ATP participate in coupled reactions? a. Hydrolysis of ATP fuels endergonic reactions. b. Synthesis of ATP fuels endergonic reactions. c. Hydrolysis of ADP fuels exergonic reactions. d. Synthesis of ADP fuels exergonic reactions.arrow_forward
- At the end of an enzymatic reaction, which molecule remains uncharged? A. Substrate B. Product C. Enzyme D. Nonearrow_forwardWhich is established by the electron transport chain and can be used to drive cellular work especially by the ATP synthase? a. Kinetic Energy b. Electrical Energy c. Gravitational Force d. Proton-Motive Forcearrow_forwardDetermine the statement that explains ATP molecule provides energy during cellular respiration processes. * A. Energy is released when the bond between two phosphate groups in ATP is broken. B. Energy is released when a phosphate group joins the molecule of ADP. C. Energy is released when one phosphate groups are removed from the molecule ATP. D. Energy is released when the bond between phosphate groups and sugar is broken.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College