BIOL250 W10 QUIZ 7

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School

American Military University *

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Course

250

Subject

Biology

Date

Jan 9, 2024

Type

pdf

Pages

16

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12/10/23, 8 : 11 PM - BIOL250 A003 Fall 2023 - APEI Page 1 of 16 https://myclassroom.apus.edu/d2l/lms/quizzing/user/quiz_submissi…TimeUp=0&isprv=0&dnb=1&cfql=1&fromQB=0&d2l_body_type=1&ou=132512 W10: Quiz 7 1 2 Your work has been saved and submitted Written Dec 10, 2023 10:25 PM - Dec 10, 2023 11:11 PM Attempt 2 of Unlimited Attempt Score 96 / 100 - 96 % Overall Grade (Highest Attempt) 96 / 100 - 96 % Question 1 4 / 4 points A muscle-forming stem cell is called a what?
12/10/23, 8 : 11 PM - BIOL250 A003 Fall 2023 - APEI Page 2 of 16 https://myclassroom.apus.edu/d2l/lms/quizzing/user/quiz_submissi…TimeUp=0&isprv=0&dnb=1&cfql=1&fromQB=0&d2l_body_type=1&ou=132512 Hide ques ! on 1 feedback Question 2 4 / 4 points Which structures of cardiac muscle allows the cells to contract in waves so the heart can work as a pump? Hide ques ! on 2 feedback Somite Mesodermal cell Myotube Satellite cell Myoblast Good work; your answer is correct! Syncytium Nucleus Intercalated discs Gap junction Desmosome Good work; your answer is correct!
12/10/23, 8 : 11 PM - BIOL250 A003 Fall 2023 - APEI Page 3 of 16 https://myclassroom.apus.edu/d2l/lms/quizzing/user/quiz_submissi…TimeUp=0&isprv=0&dnb=1&cfql=1&fromQB=0&d2l_body_type=1&ou=132512 Question 3 0 / 4 points Which type of contraction allows a muscle to produce tension without changing the angle of a skeletal joint or moving a load? Hide ques ! on 3 feedback Question 4 4 / 4 points Upon skeletal muscle membrane depolarization, what structures are triggered to open? A packet of actin and myosin microfilaments A motor neuron and the muscle fibers it innervates All of the muscle fibers in a specific muscle The sarcomere and its associated sarcolemma A functional group of sarcomeres A motor unit is comprised of a single motor neuron and all of the muscle fibers it innervates. Synaptic clefts Voltage-gated sodium channels Motor end plates Axon hillocks Neurotransmitters
12/10/23, 8 : 11 PM - BIOL250 A003 Fall 2023 - APEI Page 4 of 16 https://myclassroom.apus.edu/d2l/lms/quizzing/user/quiz_submissi…TimeUp=0&isprv=0&dnb=1&cfql=1&fromQB=0&d2l_body_type=1&ou=132512 Hide ques ! on 4 feedback Question 5 4 / 4 points Which two proteins interact to cause a contraction in skeletal muscle? Hide ques ! on 5 feedback Question 6 4 / 4 points The functional unit of a muscle fiber is called what? Good work; your answer is correct! Adenine and Guanine Collagen and Actin Keratin and Collagen Myosin and Elastin Actin and Myosin Good work; your answer is correct!
12/10/23, 8 : 11 PM - BIOL250 A003 Fall 2023 - APEI Page 5 of 16 https://myclassroom.apus.edu/d2l/lms/quizzing/user/quiz_submissi…TimeUp=0&isprv=0&dnb=1&cfql=1&fromQB=0&d2l_body_type=1&ou=132512 Hide ques ! on 6 feedback Question 7 4 / 4 points Smooth muscle tissue can be found in all but which of the following places? Hide ques ! on 7 feedback Sartorius Sarcophagus Sarcolemma Sarcoplasmic reticulum Sarcomere Good work; your answer is correct! Artery walls Stomach Visceral organs Heart Skin Good work; your answer is correct!
12/10/23, 8 : 11 PM - BIOL250 A003 Fall 2023 - APEI Page 6 of 16 https://myclassroom.apus.edu/d2l/lms/quizzing/user/quiz_submissi…TimeUp=0&isprv=0&dnb=1&cfql=1&fromQB=0&d2l_body_type=1&ou=132512 Question 8 4 / 4 points Where does a muscle fiber first respond to signaling from a motor neuron? Hide ques ! on 8 feedback Question 9 4 / 4 points In the Sliding Filament Model of Contraction, actin and myosin filaments slide past one another using what as an energy source? Hide ques ! on 9 feedback Flexible hinge region Myosin binding site Neuromuscular Junction ATP-binding site Excitation point Good work; your answer is correct! Carbon Dioxide NADH DNA ATP ADP
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