Explain how the contractile filaments are structured

Q: Diagram and label the anatomic structures of a neuromuscular junction.

A: The nerve tissue is made up of many nerve cells called as neurons. These neurons are the structural…

Q: Fibroblasts in animal connective tissue move by crawling over a substrate. Which of the following…

A: Fibroblasts are connective tissues observed as large, flat and spindle-shaped cells made of…

Q: Discuss about sliding-filament

A: Sliding filament theory was put forward by 2 group of workers i.e. A.F. Huxley and ralph…

Q: Light less dense area of sarcomere that contains reminder of thin filaments but no thick filaments…

A: SARCOMERE It is the complicated unit of striated muscle tissue. It is the repeating unit between two…

Q: Define intermediate filaments

A: All eukaryotic organisms cell consists of cytoskeleton , which is a cross cross network of…

Q: ATP within actin subunits is hydrolyzed after assembly into a filament but before disassembly from…

A: During the lifespan of an F-actin filament, most subunits hydrolyze a single molecule of ATP to ADP.

Q: n statement is not true about the intermediate filaments? atin filaments present in the muscle cells…

A: Vimentin intermediate filaments are generally present in mesenchymal cells. Vimentin is a major…

Q: What are the role of thin filaments?

A: Muscles contain a good amount of proteins, which are present in the form of actin and myosin. Most…

Q: A thick filament is made up of Select one: a. myosin and regulatory filaments b. actin and…

A: Muscular contraction is caused by the interaction between actin and myosin as they temporarily bind…

Q: What is the third step in the sliding filament mechanism?

A: The muscular system is a system of muscles where muscles are connected to bones and also to envelope…

Q: Define activa-tion loop,

A: Activation lupus typically 20 to 30 residues in length beginning with conserved  DFG Motif (usually…

Q: Explain Structure of myosin

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

Q: How are the structures of thin and thick filaments diff erent?

A: The myofibrils of skeletal muscles are composed of bundles of parallel protein microfilaments called…

Q: What is the importance of ATP in dissociating actin and myosin?

A: Animal physiology is the systematic study of the supporting features, roles, and processes of…

Q: Name, and describe the function of each of the contractile and structural protein components of a…

A: Sarcomere is the functional unit of the skeletal muscles comprising of alternate light and dark…

Q: Illustrate the features of Actin filaments?

A: Actin filaments are microfilaments. It is made up of G-actin. It is a cytoskeletal protein and the…

Q: Write the difference between Actin and Myosin.

A: The muscles are made up of proteins called as actin and myosin. These two proteins are involved in…

Q: Name the stages of sliding filaments in order. Briefly explain each.

A: Sliding filament refers to the theory that describes the contraction of muscles involving actin and…

Q: Describe the functions of the intercellular junctions between the myocytes.

A: The cardiac myocytes are joined together through intercalated disc to form a syncytium. These…

Q: A sarcomere shortens when______ . a. thick filaments shorten b. thin filaments shorten c. both thick…

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

Q: Give some characteristics of collagen fibres.

A: Collagen fibers are the main structural protein in the extracellular matrix in the various…

Q: Discuss the difference between thick and thin filaments ?

A: Thick and thin filaments are important part of the sarcomere which is the unit of muscle…

Q: What is the second step in the sliding filament mechanism?

A: The soft tissue-like structure found in the majority of the animals including human beings is known…

Q: Describe the functions of skeletal muscle proteins.

A: skeletal muscle have different type of protein such as myosin ,actin, tropomyosin and troponin. 1)…

Q: Distinguish between Transverse tubules and sarcoplasmic reticulum?

A: Anatomy is the branch of biology that deals with the study of the structure of organisms and their…

Q: Describe a cycle of cross-bridge activity during contraction and discuss the role of ATP inthis…

A: 1. when Ca+ binds to the troponin, the active site on the actin is exposed 2.  myosin and actin form…

Q: Discuss ATP-driven myosin movement along actinfilaments.

A: The actin filament is linear globular actin polymer subunits. These occur as microfilaments in the…

Q: Thin and thick filament are organized into functional unit called

A: The skeletal muscles are formed by the skeletal muscle tissues. These tissues have a striated…

Q: Diagram the arrangement of thick and thin filaments in a striatedmuscle sarcomere, and label the…

A: Striated muscles syncytial muscle fibre cells. The membrane is called sarcolemma which invaginates…

Q: What do Intermediate filaments provide?

A: Intermediate filaments:                   The key function of intermediate filaments is to provide…

Q: Describe the structure and the role of the Sliding-Filament Mechanism?

A: The muscular system is a system of muscles where muscles are connected to bones and also to envelope…

Q: Microfilaments and intermediate filaments are different in that only

A: Microfilaments ,intermediate filaments,microtubules form cytoskeleton of a cell. Microfilaments,…

Q: Follow the events of excitation-contraction coupling that lead to cross bridge activity.

A: The sequence of events that result in the contraction of an individual muscle fibre begins with a…

Q: Describe the structure of the sarcomere

A: The Sarcomere is a large protein unit that is essential for contraction in the muscle. Both skeletal…

Q: Differentiate between isovolumetric contraction phase and isovolumetric relaxation phase

A: A cardiac cycle includes all the events within the heart from the start of one heartbeat to the…

Q: Produce diagrams that illustrate the arrangement ofmyofilaments in a sarcomere

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

Q: Explain the sliding filament mechanism

A: During skeletal muscle contraction, a motor neuron stimulates the skeletal muscle fibers. The…

Q: State some major differences between actin filaments and myosin filaments.

A: A long chain of protein like those in muscle and hair is called protein filaments. They are…

Q: a muscle cell structural element that consist primarily of an actin filament is a/an______

A: A Muscle cell has actin filaments which formed structural element of muscle.

Q: When ATP binds, what prevents the filaments from sliding back into their original positions?

A: Adenosine triphosphate (ATP)  are energy rich currencies of life that stores and supplies energy to…

Q: Actin filaments are composed of?

A: The cytoskeleton provides cellular shape and internal organization. In microtubules, the tubulin…

Q: Contractile bundles occur in nonmuscle cells; these structures are less organized than the…

A: Skeletal muscles have thin and thick filaments.

Q: Intermediate filaments are composed of?

A: Intermediate filaments are a fundamental component of the cytoskeleton, but they are not present in…

Q: Explain the concept of the following in regard to muscle cells: sliding filament movement does not…

A: The mechanism of muscle contraction was explained by sliding filament theory. In this theory it is…

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…

Q: Define the structure of a sarcomere.

A: The skeletal muscle is one of the three muscles present in the human body. It consists of series of…

Nutrient Growth Medium

It is a culture medium or nutrient broth for all kinds of microorganisms to grow properly and create their colony. This matrix provides support to increase the population of microbes through the method of cell proliferation. It is regarded as the food material for those organisms. It is a type of in vitro mechanism, in which the development of life is processed outside the host body. It can be solid, semi-solid, or liquid in nature. Different kinds of cells develop in different types of media.