Actin filament - Study guides, Class notes & Summaries

A&P 1 101 Module 5 Exam Question 1 2 / 2 pts There are three types of muscle tissue found in the body. Correct! True False Question 2 2 / 2 pts Smooth and cardiac muscle tissue are both un der voluntary control. True Correct! False Question 3 2 / 2 pts The musculocutaneous nerve is part of the central nervous system. True Correct! False False- this is a peripheral nerve Question 4 2 / 2 pts A motor signal is a signal that is sent from a muscle to the central nervous system. True Correct! False F...

BIO353: Exam 2 Short Answers Module 11: Actin Filaments 1. Draw an actin monomer and an actin filament and label all the parts, molecular weights, etc.. 2. Explain the geography of actin filaments. Explain the geography of stress cable, filapodia and lamelliapodia in a cell, and locomoting in a culture plate. a. Actin filaments are located under the plasma membrane on the inside of the cell. Stress cables as well as filopodia and lamellipodia are located near the plasma membrane. 3. Focu...

NASM 7th Edition Questions and Answers 2023 What percentage of adults are do not meet recommended activity guidelines? 80% BMI Normal 18.5-24.9 Overweight BMI 25-29.9 Obese BMI over 30 Bad Blood Pressure Hypertension= 140/90 normal blood pressure 120/80 140 systolic It is specifically the maximum arterial pressure during contraction of the left ventricle of the heart. 90 Diastolic- relating to the phase of the heartbeat when the heart mus...

Bio 252 Final Exam Chamberlain LV Latest Questions And Answers Muscle Tissue Property: Electrical Excitability ANS ions are charged molecules that have different concentrations between a semipermeable membrane Muscular Tissue Property: Contractility ANS the ability to forcefully contract Muscular Tissue Property: Extensibility ANS the ability to stretch Muscular Tissue Property: Elasticity ANS the ability to return to your original shape Microscopic Anatomy of a Skeletal Muscle ...

BPK 105 FINAL EXAM QUESTIONS AND ANSWERS 100% SOLVED GRADE A+ 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 ...

Cytoskeleton: A) 3 main components B) main functions correct answers A) actin filaments, microtubules, and intermediate filaments B) actin - sense the environment and direct movement microtubules - for transport intermediate - help keep the cell shape, to anchor organelles What are the main similarities and differences between the three components of the cytoskeleton? correct answers Main similarities: - all important for cytoskeleton structure - MT & Fila: charged ends; form a...

NASM FINAL EXAM QUESTIONS AND CORRECT ANSWERS 2024/2025 ALREADY GRADED A+. 2 / 23 1. After leaving the left ventricle, blood enters which of the following struc-tures? Select one: a. Superior vena cava b. Aorta c. Inferior vena cava d. Pulmonary artery: Aorta 2. Which of the following joints is between the metacarpals and phalanxes? Select one: a. Condyloid b. Pivot c. Saddle d. Hinge: Condyloid 3. According to continuing education requirements, which of the following istrue? Se...

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...

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...

Function of all muscles correct answers to generate force and movement Skeletal muscles correct answers - voluntary (somatic neurons) - striated - Multi-nucleated - insertion is more distal - antagonistic muscle groups = flexor-extensor pairs - 40% of body weight Cardiac Muscle correct answers - Primarily involuntary - striated and uninucleated - spontaneous electrical activity - altered by autonimc NS and hormones - intercalated disks that connects them - desmosomes (mechanica...