The concentration of Ca++ in the cytoplasm of the muscle fiber is [ Select ] than that of the extracellular fluid. On the other hand, the sarcoplasmic reticulum has a [ Select ] concentration of Ca++ than the cytoplasm. Done

The concentration of Ca++ in the cytoplasm of the muscle fiber is [ Select ] than that of the extracellular fluid. On the other hand, the sarcoplasmic reticulum has a [ Select ] concentration of Ca++ than the cytoplasm. Done

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

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter8: Muscle Physiology

Section: Chapter Questions

Problem 9RE

See similar textbooks

Related questions

Q: n order to study and understand muscle diseases, one needs to have a good understanding of normal…

A: Muscles contract in a repeated pattern of binding and releasing between the two thin and thick…

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

A: Many different forms of cell motions are caused by actin filaments, which are often linked to…

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: Muscle contraction results from interactions between thin filaments, composed mainly of the…

A: Actin Myosin ATP

Q: The correct order for the smallest to the largest unit oforganization in muscle tissue is…

A: Muscle tissues represent the soft tissues present in the many animals. Muscle tissues are composed…

Q: Why is it logical that there are no muscle fibers classified asslow-glycolytic?

A: There are 3 types of muscle Fibres. Type I= slow oxidative Type II=fast oxidative Type III=fast…

Q: In relaxed muscle, the myosin-binding site on adin is blocked by ?

A: Step 1 Contractile elements of muscle fibre are myofibrils. They are made up of contractile units…

Q: Some skeletal muscle fibers are “fast-twitch” fibers (white fibers), and others are “slow-twitch”…

A: Since you have asked multiple questions, we are eligible to answer only one question. Kindly repost…

Q: Myosin heads bend when attached to actin

A: Correct option is C Myosin heads bend when attached to actin

Q: Neurons supplying smooth muscle secrete histamine display receptors only on the dendrites create…

A: Smooth muscle are cells that do not have striations. These muscles are present in the walls of…

Q: Which region or organelle—cytosol, mitochondrion, or SR—contains the highest concentration of…

A: In a resting skeletal muscle cell, low amounts of calcium ions are present in the cytosol. The…

Q: The single-fiber twitch experiments shown here were generated by stimulating the muscle cell…

A: When a muscle is triggered by a single vibration, an action potential is generated that causes the…

Q: Briefly discuss the abundance of sarcoplasmic reticulum in skeletal muscle in relation to its…

A: The sarcoplasmic reticulum is the major intracellular organelle for controlling the cytosolic…

Q: Identify three microscopic components of muscle cells notfound in other types of cells.

A: Myocytes or muscle cells are the cells that constitute muscle tissue. Muscle tissues are responsible…

Q: When training for a marathon, some muscle fibers will switch from being fast glycolytic to slow…

A: Option 1 is the answer. Type1 myosin fibres are effective for long periods of time.They undergoes…

Q: Myofibis in muscle fibres are made up of repeating units of dark and light bonds called

A: Myofibril is a muscle cell that is shaped like a rod. Many chains of Myofibril bound together to…

Q: What structures/s is/are responsible for the banding pattern in skeletal muscle cells? (EXPLAIN)…

A: Striated muscles are generally voluntary muscles that are under the conscious control of brain.…

Q: If you introduced a chemical into a muscle fiber that blocked the voltage-gated calcium channels in…

A: The muscles are the soft tissues found in the animals. They are made up of special types of…

Q: Muscle contraction involves a protein conformational change called the power stroke. Where…

A: Each myosin motor protein possesses ATPase activity and functions in a cyclical manner that couples…

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: Explain how the process of skeletal muscle excitation–contraction coupling demonstrates the general…

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

Q: Describe the major events that occur when a muscle fiber contracts. Include all chemicals,…

A: Numerous bundles which make up the skeletal muscle are called fascicles and each of these is…

Q: Why does Skeletal muscle cells contain more mitochondria than other organelles?

A: A skeletal muscle cell is a multinucleate syncytium that forms by the fusion of hundreds of myoblast…

Q: Muscle contraction is the result of critical steps characterized by conformational changes to…

A: Muscle contraction is the result of critical steps characterized by conformational changes to…

Q: A skeletal muscle can be stimulated, under laboratory conditions, with a supramaximal stimulus. Is…

A: As the nervous system produces electrical stimuli called an action potential, it passes through a…

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: Unlike skeletal muscle smooth muscle Mayer spontaneously contract when it is. What feature of smooth…

A: Smooth muscle is a non-striated muscle, divided into two groups; single unit and multiunit smooth…

Q: As skeletal muscle shortens with contraction, the length of the I band remains constant as the…

A: Muscle contraction is defined as the process of stimulation of tension generation sites present…

Q: Myosin's affinity for actin occurs Following the power stroke When myosin is energized When a new…

A: Myosin is a fibrous globulin of muscle. It split ATP and react with actin in muscle contraction.…

Q: At what point during excitation contraction coupling does exocytosis play a role? Group of answer…

A: Excitation - contraction coupling in the skeletal muscle is the sequence of events through which the…

Q: Suppose a drug blocks entry of calcium from the extracellular fluid. What if, anything, would happen…

A: Muscle cells are specialized cells that use contractile motion for movement either voluntary or…

Q: What visible features of the neuromuscular junction (NMJ) muscle tissue indicate that it is skeletal…

A: There are three muscle types, namely, smooth muscle, cardiac muscle, and skeletal muscle. The…

Q: why would skeletal muscle cell need so many nuclei?

A: Skeletal muscle is a striated muscle and it usually does not contract unless stimulated by the…

Q: Combining your knowledge of rates of diffusion with yourknowledge of muscle physiology, explain why…

A: Slow-twitch (Type I) fibres, which are characterised by muscles with lengthy contraction duration…

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: 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: The ATPase activity of myosin protein is found in,

A: Myosin is a class of molecular motor proteins that plays an essential role in the contraction of the…

Q: From the following choices, choose the THREE, that would result in prevention of muscle contraction…

A: A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles.…

Q: Which of the following regions of a sarcomere does not change length during a contraction because it…

A: Skeletal muscles are voluntary muscles. The contraction and relaxation in the skeletal muscle enable…

Q: During muscle contraction, the ion that leaks out of the sarcoplasmic reticulum and induces…

A: Ions of calcium diffuse through muscle fibres. The contraction occurs as the relationship between…

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: 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: 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: Calcium is released from the sarcoplasmic reticulum following death. Without available ATP, rigor…

A: Muscles are required in breathing, talking, running, walking, and anybody's movement. Actin and…

Q: A potential benefit of recruiting slow oxidative fibers for contraction before recruiting fast…

A: In skeletal muscle fibers, contraction in Slow oxidative (SO) fibers is relatively slow and use…

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: In order to form a cross bridge in skeletal muscle sarcomeres, calcium must bind to __________ and…

A: Calcium is required for muscle contraction. A muscle is made up of actin and myosin. Actin are…

Question

The concentration of Ca++ in the cytoplasm of
the muscle fiber is
[ Select ]
than that of
the extracellular fluid. On the other hand, the
sarcoplasmic reticulum has a
[ Select ]
concentration
of Ca++ than the cytoplasm.
Done
[ Select ]
higher
lower

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

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

While the sarcoplasmic reticulum of muscle was first described by nineteenth-century microscopists, its true significance was not ap-preciated until its intricate structure was revealed much later by the electron microscope. What could you tell a nineteenth-century microscopist to enlighten him or her about the structure of the sarcoplasmic reticulum and its role in the coupling of excitation and contraction?
Discuss the following statement: “The basal lam-ina of muscle fibers serves as a molecular bulletin board,in which adjoining cells can post messages that direct thedifferentiation and function of the underlying cells.”
Combining your knowledge of rates of diffusion with yourknowledge of muscle physiology, explain why it is advantageousfor oxidative muscle fibers (which depend on aerobic metabolismto generate ATP) to have smaller diameters than glycolyticmuscle fibers have.
Shortly after a person dies, Ca2+diffuses out of the saroplasmic reticulum and the body becomes very still and rigid, a phenomenoncalled rigor mortis (rig′er mōr′tis). Given ATP’s role in myosin head movement, propose an explanation for rigor mortis.
explain why a cell has an electrical charge differenceacross its plasma membrane and, in general terms, howthis relates to muscle contraction.
The electrochemical gradient of a muscle cell at rest or its resting membrane potential is slightly negative inside the plasma membrane and slightly positive just outside the plasma membrane and has an ionic gradient of more potassium ions inside the cell and more sodium ions outside the cell. Therefore, a muscle cell at rest is said to be __________________ and has membrane potential. about to exocytose synaptic vesicles containing acetylcholine polarized experiencing an action potential about to allow an influx of potassium ions into the cell depolarized
Match the following terms with the correct numbers in the figure below Sarc oplasmic reticulum Nucleus Buiging. biceps 8. Muscle 7. Mitochondrion-L 6. "Sheath surrounding 4. the muscle fiber 3.
The role of tropomyosin in a muscle cell is to ____. all to cell to relax by blocking the binding sites on actin facilitate the formation of cross-bridges between actin and myosin Interactions between thick and thin filaments during muscle contraction occur in which sequence? "attach to actin, detach from actin, pivot in powerstroke, return or recock" "attach to actin, pivot in powerstroke, detach from actin, return or recock" "attach to actin, pivot in powerstroke, return or recock, detach from actin" "detach from actin,pivot in powerstroke, attach to actin, return or recock" What is the role of calcium pump in muscle contractions? pump calcium out of the sarcoplasmic reticulum against its concentration gradient to initiate contractions remove calcium from the fluid surrounding the myofibrils to end contractions pump calcium into the muscle cell to stimulate the release of acetylcholine
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).
Contractile bundles occur in nonmuscle cells; these structures are less organized than the sarcomeres of muscle cells. What is the purpose of nonmuscle contractile bundles?
After death, a person no longer makes ATP, so calcium stored in the sarcoplasmic reticulum diffuses down its concentration gradient into the muscle cytoplasm. This result is rigor mortis----an unbreakable state of muscle contraction that stiffens the body for a few days until muscles begin to decay. Explain why this contraction occurs.
Every skeletal muscle fiber is supplied by a motor neuron at the NMJ. Watch this video (http://openstaxcollege.org/l/skelmuscfiber) to learn more about what happens at the neuromuscular junction. (a) What is the definition of a motor unit? (b) What is the structural and functional difference between a large motor unit and a small motor unit? Can you give an example of each? (c) Why is the neurotransmitter acetylcholine degraded after binding to its receptor?