Embryonic myoblasts fuse to form single muscle fibers during development; thus skeletal muscle cells are multinucleated. True or False True False

Q: Multiple Choice gap junctions that connect neurons to smooth muscle cells. varicosities of a…

A: Smooth muscles as the name imply, are smooth in appearance with no striations. These are also…

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: A mutation in troponin that increased its affinity for its ligand would lead to

A: Troponin protein helps to make muscle in rest Condition with the help of tropomyosin protein

Q: True or False? Rigor mortis is characterized by continued attachment of myosin heads to actin…

A: Even after death, in absence of oxygen the body may continue to produce ATP via anaerobic…

Q: Actin is sometimes called the "thick" filament. It splits ATP and is responsible for the "power…

A: The movements of different body parts are attributed to the systemic contraction and relaxation of…

Q: Actin filaments in microvilli require the help of myosin so that they can associate with the…

A: The cytoskeleton is defined as a complex, dynamic network of interconnecting protein filaments which…

Q: Elite sprinters have a high concentration of muscle fibers with the fastest cross-bridge cycling and…

A: Different kinds of muscles are present in the body, which help in locomotion and movement. These…

Q: "Motor neurons trigger action potentials in muscle cell membranes that open voltage-sensitive Ca2+…

A: Introduction: The contraction of the muscle is significantly influenced by calcium ions. When…

Q: Which of the following cells have multiple processes extending from the soma?   Multiple Choice…

A: Huamns have different cells and cell type which make  different tissues .

Q: A skeletal muscle can often maintain a moderate level of active tension for long periods of time,…

A: A neuromuscular junction also called the myoneural junction is a chemical synapse between the motor…

Q: Which of the following are correct     Dynein head elongates like a lever arm.     ATP…

A: Movement of the body part is done by contraction and relaxation of contractile proteins.…

Q: Skeletal muscle cells cannot divide. How does skeletal muscle repair itself when injured?

A: It is a form of striated muscle tissue which is under the voluntary control of the somatic nervous…

Q: A muscle cell dies, so that there is no ATP left in the sarcoplasm.  However, there is lots of Ca2+…

A: Rigor mortis is the stiffening of a dead body after hours of death. The word translates into…

Q: similar to peak bone mass: approximately 30 Similar to menopause: approximately 50 Into the 60's…

A: Muscle hypertrophy is the natural phenomenon of an increase in muscle mass. The decline in muscle…

Q: In both smooth and skeletal muscle calcium must be actively transported out of the fluid surrounding…

A: As per our honor code, we are authorized to answer only one question at a moment. As you have not…

Q: Identify the structures within this sarcomere. A band M line Z line Myosin H zone I band Actin H |||

A: MUSCLE CONTRACTION-When you perform an activity, your muscles are tightened, lengthened, or…

Q: What happens as a result of the movement of tropomyosin? O Calcium is pumped into the sarcoplasmic…

A: The sliding filament theory is proposed to explain the mechanism lying in the contraction of…

Q: muscle differs from skeletal muscle in: (more than one answer may be correct) Question 6 options:…

A: Smooth muscle are involuntary muscles where as striated muscles are voluntary muscles. Involuntary…

Q: True or False: Smooth muscle cells are long, cylindrical cells, each containing many nuclei located…

A: Tissue is the next level organization of the cells. There are 4 different types of tissue are…

Q: Motor unit is an electrical signal that is produced on Also known as an 1Cimpulse, 1D a(n)…

A: Neurons or nerve cells are the workings and the structural unit of the nervous system. It helps in…

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: Myoglobin provides muscle fibers with a means of supplying ATP anaerobically. True or False

A: The globin is a globular protein that contains heme group and it plays a vital role in binding and…

Q: During a histological examination of muscle tissue you see a cell that is striated. You determine…

A: The cell is the basic building block of life. Cells that are similar in function, are arranged…

Q: Your unfortunate friend Greta has a condition where her Ca2+-ATPase works too fast. She comes to…

A: Calcium ions (Ca2+) play a crucial role in muscle contraction. They are stored in the sarcoplasmic…

Q: Calcium is the trigger for contraction of all muscle types. How does its binding site differ in…

A: In the human body, there are three types of muscles, skeletal muscles, cardiac muscles, and smooth…

Q: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: Describe the relationship between non -muscle myosin ,actin and growth cone extension.

A: When cells receive and react to signals from other cells to support various bodily activities, such…

Q: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

A: Rigor mortis is the third phase of death. It is one of the unmistakable indications of death,…

Q: True/False

A: Every living organisms try to maintain a constant homeostatic internal environmental conditions that…

Q: The binding of myostatin to its corresponding receptor on the plasma membrane of cells leads to…

A: The body is made up of large amount of muscles. These muscles are responsible for generating heat…

Q: List four important functions of muscle tissue.

A: The muscular system made up of special cells named muscle fibres. The predominant task is…

Q: Fill in the blank using information available from the diagram above: With every action potential…

A: Various steps during the contraction of a muscle fiber include- - Arrival of a nerve impulse to a…

Q: Rising sarcoplasmic calcium levels results in contraction in both smooth muscle fibers and skeletal…

A: Muscle is a soft tissue that contains protein filaments that help in the contraction and provide…

Q: Skeletal muscle has several distinct fiber types. Type I is used primarily for aerobic activity,…

A: Skeletal muscle is one of three major muscle sorts, the others being cardiac muscle and smooth…

Q: An explanation leading to the correct answer would be helpful! Scenario: Your friend Arnold S, who…

A: Weightlifting is a popular and effective form of resistance training that plays a pivotal role in…

Q: Myosin are motor proteins that drive forces and movement on actin filaments.

A: Answer:  MYOSIN = These are the proteins , found in muscle cells and primarily plays a major role in…

Q: Tropomyosin covers the active sites on actin until it is ready for myosin to bond for a muscle…

A: Introduction:- The muscular system is an organ system that connects bones, tendons, and heart…

Q: Muscle fibers are large single cells formed by the fusion of many individual cells during…

A: Muscle fibers are the muscle cells that helps in controlling the physical forces in the body. They…

Q: Comparative characteristics of somatic, smooth and cardiac muscles. SOMATIC SMOOTH HEART (STRIATED)…

A: Connective tissue is one of the four types of tissues present in our body. Muscle tissue is a type…

Q: What do the calcium ions that are released into the cytoplasm during contraction bind to?…

A: At the point when the muscle is stimulated during contraction, calcium particles are delivered from…

Q: Contractile muscle cells cannot be created in culture.     True     False

A: Contractile muscle cell present in body as a skeletal muscle, smooth muscle and heart muscles. The…

Q: In myogenesis, the assembling sarcomeres are integrated with the extracellular matrix (composed of…

A: Myogenesis is the process of development of muscular tissue during embryogenic development.

Q: What contains troponin, is involuntary and intracellular calcium is necessary in muscle contraction?…

A: Calcium lets out from the sarcoplasmic reticulum through calcium particle channels when the membrane…

Q: Skeletal muscle cells have the ability to do all of the following EXCEPT _____.     activating…

A: Skeletal muscle is a type of three major muscle types, the others being cardiac muscle and smooth…