Actin filaments - Study guides, Class notes & Summaries

Module 1 Correct Answer- Which of the following are true statements about proteins? Proteins: Correct Answer--Are catalysts - Are receptors for signal molecules - Have structural roles - Are required for directed cell mobility (BLANK) are enzymes that catalyze the synthesis of RNA using a DNA template. Correct Answer-RNA polymerases Outside of the plasma membrane, plant cells are surrounded by a cell wall that is mostly composed of Correct Answer-cellulose The (BLANK) is the organ...

are enzymes that catalyze the synthesis of RNA using a DNA template. Correct Answer-RNA polymerases Outside of the plasma membrane, plant cells are surrounded by a cell wall that is mostly composed of Correct Answer-cellulose is the organelle that is the site of photosynthesis in plants. Correct Answer-chloroplast The cytoskeleton of eukaryotic cells is composed primarily of three types of protein fibers - intermediate filaments, actin filaments, and Correct Answer-microtubules Cells...

BIO 353 Exam 1 Study Guide Questions And Answers With Verified Solutions The Cell ANS Basic unit of life What are the major organelles/structures of a basic eukaryotic animal cell? ANS Nucleolus, nucleus, nuclear envelope, nuclear pore, chromatin (DNA), mitochondria, endoplasmic reticulum, golgi complex, actin filaments, microtubule, peroxisome, ribosomes in cytosol, intermediate filaments, lysosome, vesicles, centrosome w/ pair of centrioles, plasma membrane, extracellular matrix What ...

Which of the following is a recognized function of skeletal muscle? 1) A) guard body entrances and exits B) maintain posture C) maintain body temperature D) produce movement E) all of the above -Correct Answer E Nerves and blood vessels that service the muscle fibers are located in the connective tissues of the A) myofibrils. B) sarcolemma. C) endomysium. D) sarcomere. E) perimysium. -Correct Answer E Which of the following best describes the term sarcoplasmic reticul...

NURS 231 Pathophysiology All Module Exams Questions and Answers- Portage Learning UPDATED 2023 GRADED A+ PATHOPHYS Module Exams Module 1 Exam Question 1 2.5 / 2.5 pts True/False: A bodybuilder’s muscles will display hyperplasia. True Correct! False It will display hypertrophy. Question 2 2.5 / 2.5 pts True/False: Barrett esophagus is an example of dysplasia. True Correct! False It’s metaplasia. Question 3 0 / 2.5 pts True/False: Hypertrophy is an inc...

WVU Biology 102 Exam 5 Questions and Answers Already Passed What are the functional units of the nervous system? neurons Basic structure / function of the neuron - dendrites, cell body and axon. Dendrites- receive impulses from the synapses of other Axon- place along which the message is sent. Long rope like object. Myelin Sheath- cover around the Axon, increases the speed of the message sent. What happens during an "action potential"? Sodium (Na) start out and then rushes in- ...

Which steps involved in the contraction of a skeletal muscle require binding and/or hydrolysis of ATP? I Dissociation of myosin head from actin filament II Attachment of myosin head to actin filament III Conformational change that moves actin and myosin filaments relative to one another IV Binding of troponin to actin filament V Release of calcium from the sarcoplasmic reticulum VI Reuptake of calcium into the sarcoplasm A. I, II, and III only B. II, III, and IV only C. I, III, and ...

Anatomy - answer-The study of structure 4 areas of Anatomy - answer-Histology, Gross Anatomy, Neuroanatomy, and Embryology. What is "inextricably linked in Anatomy?" - answer-Form and function What is a molecule? - answer-Group of atoms bonded together A molecule is on what level? - answer-Chemical level cells - answer-smallest living structures and are formed from atoms and molecules cells are found at which level? - answer-cellular level Tissues - answer-similar cells th...

BIO 353 Exam #4 Worksheets Questions And Answers 2024/2025 Latest Tests Which of the following statements about actin is false? ANS The dynamic instability of actin filaments is important for cell movement The hydrolysis of bound ATP to ADP in actin filament ________ the strength of binding between monomers in the filament. ANS Decreases Actin at the cell cortex helps govern the shape of the plasma membrane. ANS True Actin filaments are nucleated at the site of existing actin filame...

what does the SR store - proteins and calcium what is the role of the transverse tubules in the muscle fiber - allow inside of muscle to communicate with the outside of the muscle how is a sarcomere measured - from z-disc to z-disc what is contained in the I band of the sarcomere & what color is the band - thin filaments titin z-disc light (isotropic) what is contained in the A band of the sarcomere & what color is the band - thick filaments thin filaments dark (scatters lig...