What would happen if you accidentally ingested a toxin that completely inhibited the function of the Ca2+ pumps in the sarcoplasmic reticulum membrane?

Q: Which of the following families of actin-binding proteins promote actin filament polymerization?…

A: Actin filaments are made up of a long spiral chain of similar actin proteins. Actin filaments, like…

Q: Diagram and describe the two types of cell protrusions seen on mammalian cells and the actin…

A: Two Types of Cell Protrusions in Mammalian Cells Mammalian cells have specialized extensions called…

Q: 23) which of the following is true about skeletal muscle?  a) they depend entirely on anaerobic…

A: Skeletal muscles are made of long, cylindrical thin cells that contain highly organised proteins and…

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: You discover a mutant mouse whose skeletal muscles do not work properly.  You remove a piece of…

A: Acetylcholinesterase or acetylhydrolase is a cholinesterase enzyme primarily found at neuromuscular…

Q: The Sarcomere 2 Thin filaments are often named for which protein? a. actin b. myosin c. troponin d.…

A: The sarcomere is the smallest functional unit of a skeletal muscle fiber. It is a highly organized…

Q: dentify the nonpolar, inorganic molecule which can pass freely through the plasma membrane.

A: Answer: Plasma membrane is semi-permeable membrane which is composed of lipid bilayer. It is the…

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: Analogs of hemidesmosomes are the focal contact sites, which are also sites where the cell attaches…

A: The epidermis is the outermost layer of the skin which is attached to the dermis by an extracellular…

Q: Skeletal muscle is composed of very hard workingcells. Which organelles do you expect to find in…

A: The skeletal muscle is formed of a bundle of striped or striated cylindrical fibers and comprises…

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: Suppose theres a drug that works towards blocking the entry of calcium from the extracellular fluid.…

A: The muscular system is one of the 11 major body organ systems of the body that aids in the…

Q: The organization of myosin in smooth and striated muscle:

A: Smooth muscle consists of thick and thin filaments that are not arranged into sarcomere.In skeletal,…

Q: 3) Paula is a scientist who is developing a drug called Fremtol that will be used to treat muscle…

A: ATP works as a cell energy currency and it helps the cell to rapidly accumulate energy and transfer…

Q: What role (function) does calcium have within a muscle fiber? a. trigger muscle potentials along…

A: Calcium is present in the sarcoplasmic reticulum until and unless it is released by the stimulus. It…

Q: What type of cells sit outside the sarcolemma of a muscle fiber but below the basement membrane of…

A: Sarcolemma The plasma membrane of the muscle cell is called sarcoplasm and it is surrounded by he…

Q: Describe a negative feedback mechanism for controlling a rising cytosolic Ca2+ concentration in…

A: Numerous metabolic reactions occur in a cell. These reactions may require an enzyme catalyst. The…

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: How is muscle contraction stopped? Which of the following is/are correct?   A) The brain stops…

A: The process of muscle contraction is a sequence of events that are responsible for the contraction…

Q: 31) which of the following are included in a triad found in skeletal muscle? a) actin, myosin and…

A: Skeletal muscle is one of the three types of muscles found in the muscular system. The other two…

Q: A)Fill in the blanks below regarding sarcomeres: In a sarcomere, thin filaments are composed…

A: Sarcomere is the functional unit of striated muscle. Our skeletal muscle is made up of sacromeres .…

Q: Muscle cells have a number of anchor membrane?

A: A muscle cell is characterized by a long cell that can shorten its length through a sequence of…

Q: QUESTION 28 Sort the following events to reflect the sequence during smooth muscle contraction upon…

A: Since the given image contains multiple types of questions, the first question in chronological…

Q: What organelle is less developed in cardiac muscle than in skeletal muscle? How does this affect the…

A: The cells having the contracting properties is muscle tissue. Muscle cells that are excitable…

Q: Typically, there is an ion gradient between the cytoplasm and the interior of synaptic vesicles. The…

A: Neurotransmitters are the chemicals that are secreted by "nerve cells" or neurons to carry the…

Q: Suppose a person had an unusual mutation in the troponin protein of his skeletal muscles, such that…

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

Q: 28) the large protein that attaches to myosin and stabilizes it when the sarcomere shortens is: a)…

A: The mechanism muscles contraction is explained by the sliding filament theory . In this myosin (a…

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: 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: How would the changes from the table above result in skeletal muscle cell protease and lipase…

A: Numerous signalling pathways and biological activities are under the control of intracellular…

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: 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: 18) in a sarcomere, which of the following is found in the light band? a) actin and myosin b) none…

A: The smallest functional unit in a striated muscle is a sarcomere. It is located between two Z-lines.…

Q: scenario: The doctor explained to Joe’s wife that plaque in his arteries had ruptured causing a…

A: The blood clot is formed when a clump of blood gets dislodged in the blood vessels and prevents the…

Q: Define the term myoblasts?

A: Myoblast are endogenous skeletal muscle progenitor cells that serve to regenerate functional…

Q: What are Chaperones ?

A: Protein folding is the physical process by which a protein chain acquires its native…

Q: A person ingests a fungus containing a toxin that blocks kinesin activity. How will cell transport…

A: Kinesin is a motor protein present in eukaryotic cells. They move on the tracks of microtubule…

Q: Why is the movement of Ca2+ from the sarcoplasm into the sarcoplasmic reticulum classified as active…

A: During muscle contraction, the release of calcium occurs from the sarcoplasmic reticulum. The…

Q: Which of the following proteins connects the actin filaments to the Z-band in the sarcomere? CapZ…

A: Z discs are narrow structures which act as a separation between two sarcomeres. A band is the middle…

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: Sebaceous glands is a type of sweat gland? are associated with hair follicles may function in…

A: 1. associated with hair follicles Sebaceous glands are associated with hair follicles and secrete…

Tissue regeneration & repair

Tissue regeneration involves the restoration of tissue components by regrowth of damaged tissues. In contrast, tissue repair involves patching of injured tissue rather than restoring it. It is the proliferative capacity of the cells that decides the amount of regeneration against the repair that would occur in the tissue. Both regeneration and repair depending on the duration of the injury and response to the inflammation.