Actin filament - Study guides, Class notes & Summaries

NSCA- CSCS EXAM REVIEW QUESTIONS AND ANSWERS, 100% ACCURATE. GRADED A+. sliding filament theory theory that actin filaments slide toward each other during muscle contraction, while the myosin filaments are still Z line A dark thin protein band to which actin filaments are attached in a striated muscle fiber, marking the boundaries between adjacent sarcomeres. T tubules Also called transverse tubules, these are deep invaginations of the plasma membrane found in skeletal and cardiac m...

The paramecium discussed in class contained an organelle called the contractile vacuole. This is the presumed precursor of the: - Correct answer-kidney A cell that is anchorage-dependent for growth will also exhibit contact inhibition. - Correct answer-true In your own multicellular body, cells with different functions have different DNA. - Correct answer-false The contractile vacuole of the paramecium is possibly an evolutionary precursor of the kidney. - Correct answer-true The paramec...

Muscle Tissue Property: Electrical Excitability - Answer-ions are charged molecules that have different concentrations between a semipermeable membrane Muscular Tissue Property: Contractility - Answer-the ability to forcefully contract Muscular Tissue Property: Extensibility - Answer-the ability to stretch Muscular Tissue Property: Elasticity - Answer-the ability to return to your original shape Microscopic Anatomy of a Skeletal Muscle Fiber - Answer--each mature skeletal muscle fiber has ...

Kinesiology Midterm Exam 2024 Questions and Answers Dependent - Answer-requiring some assistance exacerbation - Answer-increase in the severity of a disease or its symptoms Graft - Answer-tissue or organ for transplantation or implantation Hemiplegia - Answer-paralysis of one side of the body Ipsilateral - Answer-same side Contralateral - Answer-opposite side mobility - Answer-ability to move with ease orthostatic hypotension - Answer-fall in blood pressure Osteoporosis - Answer-loss o...

ex phys final exam practice questions and answers 100% pass What is a neuromuscular junction? - Correct Answer ️️ -Junction between motor neuron and muscle fiber What is a motor unit? - Correct Answer ️️ -Motor neuron and all fibers it innervates What is a motor end plate? - Correct Answer ️️ -Pocket formed around motor neuron by sarcolemma What is a neuromuscular cleft? - Correct Answer ️️ -Short gap between neuron and muscle fiber What happens when acetylcholine is rel...

ASU BIO 181: EXAM 2 QUESTIONS AND ANSWERS ALREADY PASSED 90% of absorption in the intestine occurs where? The jejunum and the ileum A bacterium coated by antibodies is a signal that a macrophage should endocytose (eat) it true Adhering junctions are based on two different types of cytoskeleton filament systems. Name those systems. Actin Filament System Intermediate Filament System Any cell can present an antigen on a class I major histocompatibility complex (MHC) protein. true...

Bio 181 ASU Exam 1 Questions and Answers Already Passed 3 fatty acids and glycerol are combined via an ________ ester linkage Actin Filament System cell motility/cell muscle, filapodia, microvilli, cell cortex Actin filaments are _____ nm 7 Anchorage-dependent uses contact inhibition to stop growth Anchorage-indepedent will keep growing forever given fresh nutrients and space Antiporter transports two different substances in opposite directions Approximately when did the ...

NSCA CSCS Chapter 1 Exam Questions with Answers neuromuscular junction - Answer-junction between motor neuron and muscle fibers it innervates motor unit - Answer-motor neuron and muscle fibers it innervates myofibrils - Answer-contain the apparatus that contracts muscle cells myofilaments - Answer-actin and myosin myosin - Answer-thick filament actin - Answer-thin filament longitudinally - Answer-mysoin and actin arranged this way in the sarcomere sarcomere - Answer-smalle...

NASM FINAL EXAM After leaving the left ventricle, blood enters which of the following structures? Select one: a. Superior vena cava b. Aorta c. Inferior vena cava d. Pulmonary artery - Aorta Which of the following joints is between the metacarpals and phalanxes? Select one: a. Condyloid b. Pivot c. Saddle d. Hinge - Condyloid According to continuing education requirements, which of the following is true? Select one: a. Accumulate 2 units of approved continuing educatio...

What is actin? Actin is a thin protein filament in muscle fibers that works with myosin for muscle contraction. What is myosin? Myosin is a thick protein filament in muscle fibers that interacts with actin to cause muscle contraction. What is a sarcomere? A sarcomere is the basic contracting unit in a muscle fiber, made of actin and myosin. What is troponin? Troponin is a protein on actin filaments; it binds calcium and helps start muscle contraction. What is the sarcoplasmic reticulum? ...