Answered: Which of the following regions of a…

Which of the following regions of a sarcomere at rest is characterized by the presence of myosin only? a) A band b) H zone c) I band d) Z line

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter8: Muscle Physiology

Section8.2: Molecular Basis Of Skeletal Muscle Contraction

Problem 1CYU

See similar textbooks

Related questions

Q: What prevents cross-bridges from attaching to sites on the thinfilaments in a resting skeletal…

A: Muscles are the tissues able to contract in response to stimuli.

Q: After lactate is produced in the sarcoplasm, where might it go and how might it be used?

A: Two pyruvates are converted to two lactic acid molecules, which ionize to form lactate. In this…

Q: In the sliding filament model of muscle contraction, I bands contain sacrcomeres. thin…

A: The cytoskeletal proteins including actin filament or microfilament, microtubules and intermediate…

Q: What binding sites do myosin heads contain?

A: The cells of muscular tissue that are known as muscle fibers function in muscle contraction. On the…

Q: During muscular contraction, cross-bridges form between _____ and _____ . Multiple Choice a)…

A: Muscles are all composed of a kind of elastic tissue. Each muscle is made up of thousands, on the…

Q: Even though calcium is removed from troponin and tropomyosin, please describe in detail what else…

A: The events that result in the contraction of human muscle fiber starts with the signal by a…

Q: What is migrating myoelectrical complex (MMC)?

A: At fasten time, The contraction of muscle in stomach and in small intestine to clean the residual of…

Q: Explain Structure of myosin

A: Myosin is a protein that belongs to the class of molecular motor proteins. This class comprises two…

Q: Which of the following are aspects of the structure of skeletal muscle? Select all that apply.…

A: MUSCULAR TISSUE:- This tissue is different from the rest of the tissue as this tissue can contract…

Q: the process of muscle contraction, which of the following steps immediately precedes the influx of…

A: Muscle contraction:- Is the response a muscle has to any kind of stimuli where the result is…

Q: myofibrils or sarcomeres present in smooth muscle fibers?

A: Myofibrils are the long filaments which are arranged parallel to each other to form muscle fibers.…

Q: What cells come between mesodermal cells and the muscle fiber in the stages of skeletal muscle…

A: The embryonic mesodermal germ layer give rise to the muscle tissue, except the piloerector muscles,…

Q: what is a myofibril

A: To describe: To describe myofibril and its structure.

Q: Myosin motor proteins are NOT involved in which of the following?

A: option a not involved Regulating the mitotic organizing center MTOCs Option b involved because…

Q: What is the primary role of the light chains in myosin? In kinesin?

A: Myosins and kinesin belong to the family of motor proteins in which the myosin is responsible for…

Q: Explain myosin regulatory lightchain

A: When a cell is destined for division, first its nuclear content would be shared between cells. It…

Q: What do you mean by myofibrils?

A: Muscle cells are also referred to as myocytes. These are the cells that made up the muscle tissue.…

Q: How would a myosin head mutant unable to bind ATP likely influence the myosin Il cycle? The myosin…

A: Skeletal muscles are a special type of muscles made up of contractile tissue. They are a type of…

Q: 17. Which of the following choices is CORRECT? A. Myofibrils extend the length of a muscle fibre B.…

A: Muscles are soft tissues present in most animals. They contain protein filaments called actin and…

Q: How does the cross-bridge result in thin filaments sliding over thick for contraction? Use key…

A: As Cross-bridge is formed myosin head is locked tightly on to an actin filament. Binding of ATP to…

Q: Myosin II action differs from that of kinesin in that one of the kinesin heads is always in contact…

A: Introduction Motor motion, including as contractions and expansions, is controlled by myosin. Muscle…

Q: 9. The binding of the myosin head to the free binding site of the actin filament results in the…

A: Introduction Actin and myosin, coupled with the regulatory proteins known as troponin, tropomyosin,…

Q: Provide one difference and one similarity in the process of contraction of smooth, skeletal, and…

A: Muscles are divided into three categories: cardiac, smooth, and skeletal. Cardiac muscle is found in…

Q: There are at least 20 different types of myosin. What properties do all types share, and what makes…

A: Introduction Myosins are a group of motor proteins that play a key role in muscle contraction and a…

Q: 17. Which of the following choices is CORRECT? A. Myofibrils extend the length of a muscle fibre B.…

A: Muscle is a soft tissue that helps in movement of the body, maintains posture, and circulates blood…

Q: What does ATP binding to myosin head triggers? a. Its association with microtubules b.…

A: It is a superfamily of protein which bind actin , hydrolyze ATP and transduce force. Myosin is the…

Q: Which type of myosin is found in contractile bundles?

Q: When ADP and Pi are bound to myosin in the cross-bridge cycle... (MULTIPLE SELECT) A. There is no…

A: The cross-bridge cycle of muscle contraction is the process in which the actin filament and myosin…

Q: 5. Diagram the structure and organization of the actin and myosin filaments including the myosin…

A: Note- As we are allowed to do only one question at a time so I will provide answer to one question…

Q: Where is ATP's energy used during crossbridge cycling? A. When ATP attaches to myosin and causes…

A: Muscle cells are specific for contraction. It allows for motions and facilitates bodily processes…

Q: Why is myosin II the only myosin capable of producing contractile force?

A: Introduction Myosins are a group of motor proteins that play a key role in muscle contraction and a…

Q: What is the micro anatomical arrangement of a skeletal muscle fiber cell?

A: Muscle is a soft and contractile tissue that is responsible for body movement. Muscle cells consist…

Q: How does the structure of the microfilaments allow for linear contraction of a whole muscle cells?

A: Microfilaments are little, string like protein fibres with a diameter of 3-6 nm. They are mostly…

Q: Which fiber is included in the sarcomeres, ie the contractile units found in muscle fibers?…

A: Muscles These are organs which constitutes muscle fibers or cells. Fibers or cells are specialized…

Q: What happens when myosin filaments hydrolyze ATP molecules in muscles? a. Actin–myosin complexes…

A: The specialised cytoplasm of a muscle fiber is called sarcoplasm which contain fine thread like…

Q: If the number of myosin heads were doubled, what would be the effect on force production? ATP…

A: Myosin are cellular proteins that are involved in many cellular functions. In cell division, they…

Q: Which of the following happens within the sarcomere during muscle contraction? The myosin…

A: Answer :- Option (A) is correct. - The myosin filaments "walk" along the actin filaments…

Q: What are the steps of the sliding filament model? Select all that apply. Sarcomeres are in a relaxed…

A: Following are the steps of contraction of the disease 1. Release of neurotransmitter at motor…

Q: This thick filament motor protein composed of 6 polypeptide chains uses ATP hydrolysis to interact…

A: Skeletal muscles are attached with the skeleton. Muscle is made up of contractile, structural and…

Q: While the sarcoplasmic reticulum of muscle was first described by nineteenth-century microscopists,…

A: The structure of the sarcoplasmic reticulum is a little different from the normal endoplasmic…

Q: What is the effect of pH on hydration of myofibrillar proteins

A: Myofibrillar protein These are the main protein of skeletal muscle and constitute about 50 % of…

Q: Myosin II has a duty ratio of 10 percent, and its step size is 8 nm. In contrast, myosin V has a…

A: Myosin-II (also known as conventional myosin) is a type of myosin. It is in charge of the production…

Q: Which of the following characteristics is shared by all types of muscle tissue? Question 5…

A: Introduction: Movements in the human body are controlled by muscle cells. Involuntary and voluntary…

Q: A sarcomere contracts when a) Thin filaments (actin) slide b) Thick filaments (myosin) slide c) Thin…

A: Muscles form an important system in our body and functions in locomotion and body movement. They…

Q: Contraction of muscles requires binding of various components of muscle fiber. Which of the…

A: Introduction Muscle contraction can be defined as the activation of tension-generated sites within…

Q: How useful are myotoxin as a therapeutic?

A: Myotoxins are proteins found in venoms of snakes and lizards. These myotoxins causes, paralysis (by…

Q: How do we know that there are vesicles filled with neurotransmitters at the neuromuscular junction?…

A: The chemical messengers of the body are typically referred to as neurotransmitters. They are the…

Q: If you were to watch muscle tissue contract: Under a light microscope, would you see the muscle…

A: Muscles play a vital role in the force and motion of the body. They contain protein filaments of…

Concept explainers

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.

Question

Which of the following regions of a sarcomere at rest is characterized by the presence of myosin only?

a) A band

b) H zone

c) I band

d) Z line

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

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 the sliding filament theory of contraction, what prevents the filaments from sliding back to their original positions each time a myosin head releases to bind to next actin binding site?
Which region or organelle—cytosol, mitochondrion, or SR—contains the highest concentration of calcium ions in a resting muscle fiber? Which structure provides the ATP needed for muscle activity?
If you were to watch muscle tissue contract: Under a light microscope, would you see the muscle fibers get narrower, or the striations get thinner? Explain. At the EM level, focusing on one sarcomere, you would be able to see a region of thick filaments overlapping two regions of thin filaments. Use the structure of the thick filaments to explain how ONE region of thick filaments is able to pull in microfilament in two opposite directions (both toward the center of the sarcomere).
How does the structure of the microfilaments allow for linear contraction of a whole muscle cells?
What is a sarcomere? What is labeled Z,H, and M, and what are their functions? In the contracted sarcomere diagram, what are the proteins that are touching each other?
Diagram the arrangement of thick and thin filaments in a striatedmuscle sarcomere, and label the major bands that give rise to the striated pattern?
If a muscle cell’s sarcoplasmic reticulum had little to no Ca2+, could the muscle cell still produce an electrical impulse, and would the muscle cell still contract? Explain.
What is the micro anatomical arrangement of a skeletal muscle fiber cell?
What do Intermediate filaments provide?
What two types of microfilament make up the muscle sarcomere? Which motor protein is primarily involved in muscle contraction?
Intermediate filaments are composed of?
Are there any diseases linked to actin filaments? Are any mutations that could halt the growth of actin filaments? I've learned about different drugs that affect filaments like Phalloidin, Cytochalasin, and Latrunculin. But other than drugs, what external environmental factors could halt the process of actin filaments from growing, and is there any diseases or illness that are associated with abnormal actin filament activity? Thank you.