Predict what happens to the H zone thin filaments from opposite sid band touch each other as they sl toward the center of the

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: Thick filaments are part of the I band contain actin O contain myosin but thin filaments do/are not.…

A: In each microfibril, actin thin filaments and myosin thick filaments are organized into a linear…

Q: Define intermediate filaments

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

Q: What would be the consequences of actin filament assembly/disassembly if a mutation prevented actins…

A: Actin belongs to the globular family of proteins that forms microfilaments present in eukaryotic…

Q: How fast could a non-muscle cell make a contraction compared to a muscle cell if the relative rates…

A: In muscle contraction, actin filaments are associated with myosin filaments to perform various kinds…

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: Define the types and functions of intermediate filaments.

A: Many eukaryotic species contain intermediate filaments as a form of cytoskeletal protein in their…

Q: Describe the organization of myosin, actin, tropomyosin, and troponin molecules in the thick and…

A: Introduction: The myofibrils are made of parallel bundles of protein microfilaments referred to as…

Q: Actin filaments in a test tube: O a. undergo disassembly if the concentration of free ATP-bound…

A: In cells, microtubules, actin filaments, and intermediate filaments are much more complex than in a…

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: i. Name the molecular structures that we would find embedded in the membrane at arrow A that would…

A: The region of the sarcolemma that lies just below the terminal end of the axon, is known as the…

Q: In a myofibril, the light central region of an A band is called... O I band O M line O Z band O H…

A: In a myofibril, the light central region of an A band is called H zone.

Q: Define elastic fiber

A: Connective tissues are the most widespread and diverse tissues comprising cells, protein fibers (any…

Q: Define what is  intermediate filament ?

A: The term intermediate filament refers to the protein structures that serve as the cytoskeleton and…

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: Explain how the thin and thick filaments interact in the sliding filament model.

A: Tendons attach skeletal muscles to the bone. Numerous bundles which make up the skeletal muscle are…

Q: The mechanical force of contraction (shortening) is generated by: O shortening of the thin filaments…

A: Muscle contraction starts when a signal is produced by the nervous system. The signal (action…

Q: 4. A transverse section across theT + a) I-band to one side of the Z-line would bisect only actin…

A: Since two questions are asked in this section. It can be possible to answer one question in the…

Q: What is responsible for the formation and stabilization of actin bundles and networks?

A: Actin is a protein that forms part of the cytoskeleton, a network of fibers that gives cells their…

Q: Explain how cofilin distinguish old filaments from new ones.

A: What is cofilin? By expanding the number of filament endings out of which actin monomers could be…

Q: Explain how the contractile filaments are structured

A: A muscle fiber is a contractile filament which is made of contractile proteins.   The thick…

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: Secondary transporters   Describe neuromuscular joints

A: Secondary transport is a form of active transport. Here, molecules are transported across the cell…

Q: Discuss the following statement: “if plant cells contained intermediate filaments to provide the…

A: The environment substantially affects plant development and geographical dispersion. If an…

Q: Describe the structure of a neuromuscular junctionand explain how an action potential is…

A: A neuron, sometimes referred to as a nerve cell, forms the brain's basic working unit or Central…

Q: Predict what happens to the H zone when the thin filaments from opposite sides of an A band touch…

A: Muscle contraction involved in the movement of the body and body parts. The sliding theory of muscle…

Q: 0.5 100 200 300 400 500 600 700 -0.5 Wavelength (nM) The gray one: 2.4 M On a single graph, plot the…

A: The myoglobin absorbance graph is given. The absorbance spectrum of myoglobin is plotted with 0 M…

Q: Is actin is present in thin filament?

A: The muscles are the components of the body that enable locomotion. The nervous system regulates the…

Q: Explain how the structure of intermediate filaments makes them better suited to provide mechanical…

A: The most diverse group of cytoskeletal elements whose diameter lie between those of microfilaments…

Q: What is the rate-limiting step in the formation of an actin filament?     Addition of actin…

A: Cytoskeleton is an intracellular network of protein filament present in the cytoplasm. There are…

Q: An individual "step" by a myosin head in one cycle pulls the thin filament about 15 nm. How many…

A: To find the number of steps each actin filament/fibre must make in one contraction, you need the…

Q: The power stroke Multiple Choice Positions the myosin heads in their high-energy pos Pulls the thin…

A: power stroke of muscle contraction -It is the pivoting of myosin heads to pull filament toward the m…

Q: What is meant by the term "Critical concentration" with respect to actin filaments?

A: The microfilament or actin filament is made up of monomeric globular actin protein or G-actin. Actin…

Q: in musles what are the steps of Excitation coupling and the cross-bridge cycle

A: Excitation coupling is occurred in muscle for the process  of excitation and relaxation of muscles…

Q: Thick Filaments contain ⒸA. Actin OB. Troponin O C. Tropomyosin O D. Myosin OE. All of the above

A: Muscular system is a type of body system which is involved in regular contraction and relaxation so…