Skeletal, smooth, and cardiac muscle are similar in that they all _____.   A are divided into motor units   B require calcium in order to contract   C undergo mitosis frequently to replace dead or damaged cells   D have small round cells connected by gap junctions

Q: Column I Column II Ca binds to calmodulin 1. Binds calcium in skeletal muscle cells Ca binds to…

A: Muscle tissue is a well-vascularized soft tissue present in the muscles of animal body. Muscle…

Q: Which connective tissue cell is a tissue macrophage? a.Mast cell b.Plasma cell c.Fibroblast…

A: Muscle fibers are a type of cell that may be found all throughout the body. The basic function of…

Q: The mechanism of muscle contraction is best explained by the sliding filament model. According to…

A: Answer :- Correct option is D actin and myosin The mechanism of muscle contraction is best explained…

Q: During the contraction of a vertebrate skeletal muscle fiber,calcium ions(A) break cross-bridges as…

A: Skeletal muscles are voluntary muscles. It attached to bone by tendons. It helps in movement of…

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: Skeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) One…

A: muscles are the tissues which helps in movement and locomotion . they  contract and relax based on…

Q: Predict what might happen to a muscle cell that is extensible but not elastic. What if the reverse…

A: Extensibility and elasticity are the properties of every muscle of the body.  Extensibility is…

Q: Which component is responsible for initially stimulating a muscle contraction? a. proteins b.…

A: Muscle contraction can be defined as the increase in the tension or decrease in the length of a…

Q: Identify the organelle most likely responsible for each cellular job within skeletal muscle  a)…

A: Skeletal muscles are those which are connected with the skeleton and are voluntary in nature. These…

Q: Unlike skeletal muscle cells, cardiac muscle cells________."   A do not use the sliding filament…

A: Muscle is a soft tissue present in various animals.Muscle cells are composed of protein filaments of…

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: Identify the cells and cell components shown in Figure on prepared slides (skeletal muscle,…

A: 1]  Skeletal muscle cell is  a  type of striated muscle cell and is a component of the muscle which…

Q: 2.If you were running an experiment and interrupted the interaction between thin and thick…

A: Introduction :- When a sarcomere (a) contracts, the Z lines become closer together and the I band…

Q: Three kinds of muscle cells- cardiac, smooth and skeletal- differences between their anatomy?…

A: Muscular system There are three types of muscles in our body , they are  Skeletal muscle Smooth…

Q: The function of Ca2+ in skeletal muscle contraction is toa. cause an allosteric change in myosin so…

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

Q: Fast-twitch muscle fibers have which of the following characteristics?a. fewer number of…

A: Fast twitch muscle is a muscle which helps you to do short and quick responses

Q: What event causes a troponin-tropomyosin complex to regain its original shape in muscle relaxation?…

A: Muscle contraction is the activation and formation of tension sites with muscle fibres, while muscle…

Q: In a study of aging in dolphins that were stranded on the beach, researchers took muscle biopsies…

A: Myosin isoform is the maximum velocity of contraction. Myosin heavy chain converts the chemical…

Q: The function of ATP during muscle contraction is toa. cause an allosteric change in myosin so it…

A: ATP(adenosine triphosphate) causes an allosteric change on myosin so it detaches from actin and…

Q: muscle loss over time  b. cilia cannot bend  c. fats build up in nerve cells  d.

A: Protein Dynein is a family of motor proteins that transport cargo protein along the negative end of…

Q: Ans Column I Column II Ca binds to calmodulin Binds calcium in skeletal muscle cells 1. Ca binds to…

A: Muscle is a soft tissue found in animals which consists of actin and myosin that slides over each…

Q: In 2013, Zach Bitter set a new record for running a 100 mile Ultra-Marathon in less than 12 hours.…

A: The muscle fiber is an individual muscle cell that consists of hundreds or thousands of myofibrils.…

Q: Skeletal Muscle Smooth Muscle Cardiac Muscle Striated? [a] [b] [c] [f] # of Cells? [d] [e] Shape?…

A: Tissue comprises of structurally and functionally similar cells. It is a level of organization in…

Q: Describe the roles of ATP in the sliding filament mechanism of skeletal muscle contraction.    (b)…

A: Sliding past theory explains the process of various muscle proteins such as actin and myosin sliding…

Q: The Ca2+ required for skeletal muscle contraction, O A. Is released from mitochondria B. Is released…

A: when the nerve impulse is activated that is action potential comes in  muscle contraction…

Q: In muscle cells, magnesium ions compete with calcium ions for binding sites on troponin molecules.…

A: Calcium triggers contraction by reaction with regulatory proteins that in the absence of calcium…

Q: 1. During skeletal muscle contraction, what event directly precedes the release of actin by myosin?…

A: It is required to mention the event that directly precedes the release of actin by myosin during the…

Q: Which of the following is false regarding smooth muscle? A. It contracts slower than skeletal…

A: There are three types of muscles skeletal, cardiac and smooth muscles.

Q: if, in a laboratory, a skeletal muscle cell receives a single stimulus to contract, it produces a…

A: As per our honor code, we are authorized to answer only one question at a moment. So, we are…

Q: In an examination of a sample of muscle tissue, you notice that thesample consists of striated cells…

A: Step 1 Muscle tissue is a tissue of mostly mesodermal origin where the cells, called myocytes, are…

Q: list that has the order from the smallest to the larges a) Sarcomere , Myofibrilactin , myosin b)…

A: Correct option: b) Actin, -sarcomere, -Myofibril, -Muscle Fibre

Q: Only ____ can be voluntarily controlled. Choose one: A. skeletal muscles B.cardiac muscles C.smooth…

A: The tissue derived from embryonic mesoderm and involved in movement and locomotion by virtual of its…

Q: Which of the following commits a cell to become muscle cell?

A:

Q: Which of the following characteristics does not apply to skeletal muscle tissue?   a.  striated…

A: Skeletal muscle tissues are those that are closely attached to skeletal bones. A typical example of…

Q: What is represented on the image above? (A) A cross-section of a cardiac muscle B A longitudinal…

A: Introduction Muscles are soft tissues, Many, stretchy fibers make up our muscles, muscle is a group…

Q: What event causes a troponin-tropomyosin complex to regain its original shape in muscle relaxation?…

A: Muscle contraction is the action of activation and generation of tension sites with muscle fibers…

Q: 2 a) What does calcium do in a skeletal muscle cell and where in the cell does it come from?…

A: Skeletal muscle contraction is a complex phenomenon and involves various processes requiring special…

Q: What is the role of calcium in muscle contractions? Multiple Choice   a) To spread the action…

A: Muscle contraction It is the activation of tension-generating regions in the muscle fibers. It…

Q: Pick the right order for muscle contraction a) ATP attaches to myosin, muscle cell uses calcium,…

A: Within the muscle cell the actin and myosin interaction occurs. The acting is a cytoskeleton protein…

Q: Heart muscle cells ______.   A will not contract unless acetylcholine is released at a…

A: Cardiac muscles are known as Myocardium.Cardiac muscles are different from skeletal muscle because…

Q: Draw the neuromuscular junction and skeletal muscle fiber & provide your reasoning why it's an…

A: Note: As per the guidelines, we are answering the first question here, Please repost the other part…

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: 51- are links between the Filamentous F-actin of thin filaments and myosin heads of thick filaments.…

A: Introduction Muscle contraction is the activation of tension-generating sites within muscle cells,…

Q: 1. A receptor absorbs the energy of a stimulh by means of a. Reception b. Transmission c.…

A: Physiology is defined as the study of the way the human body works. It tells the basic and complex…

Q: Match the ATP duty of myosin to its description…

A: Introduction  ATP Is Essential For Muscle Contractions Because It Frees The Myosin For The Next…

Q: Which of the following is true?       Tendons join bone to bone       Tendons join muscle to…

A:

Q: Which of the following statements about skeletal muscle is CORRECT? Select one: a. An increase in…

A: Muscle tissue is made up of cells that contract (become shorter) when stimulated by the nervous…

Q: Which of these does NOT apply to smooth muscle cells?     actin and myosin filaments are arranged…

A: In this question, Option 1 i.e. actin and myosin filaments are arranged in sarcomeres is a FALSE…

Q: On the molecular level, why does lifting weights consume energy?  A. To contract a muscle,…

A: ANSWER;- c) To contract a muscle, myosin binds and pulls actin, ATP binding, and hydrolysis are…

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.