Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 38, Problem 8RQ
Which of the following is not a true statement comparing exoskeletons and endoskeletons?
- Endoskeletons can support larger organisms
- Only endoskeletons can grow as an organism grows
- Exoskeletons provide greater protection of the internal organs
- Exoskeletons provide less mechanical leverage.
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Which of the following shortens in length during skeletal mucle contraction? select all that apply
Action filaments
H- zone
A- band
I- band
Which of the following are correct
Dynein head elongates like a lever arm.
ATP hydrolysis detaches myosin from actin
Myosin slides over both thick and thin actin filaments
ATP hydrolysis drives change in conformation of the myosin head.
Muscle versus bone Venn diagram
Drag each word or phrase to the part of the Venn diagram to which it is associated; if a word or phrase is
associated with both muscular and skeletal systems, place it in the overlapping parts of the circles.
High use of ATP
Bone cells
Helps maintain
body
temperature
Contains blood
vessels
Includes
connective
tissue
Calcium
reservoir
Produces blood
cells
Receives signals
from nervous
system
One function is
movement
Sliding filament
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Myofibrils
Vertebrate muscular
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Chapter 38 Solutions
Biology 2e
Ch. 38 - Figure 38.19 Which of the following statements...Ch. 38 - Figure 38.37 Which of the following statements...Ch. 38 - Figure 38.38 The deadly nerve gas Sarin...Ch. 38 - The forearm consists of the radius and ulna radius...Ch. 38 - The pectoral girdle consists of the: clavicle and...Ch. 38 - All of the following are groups of vertebrae...Ch. 38 - Which of these is a facial bone? frontal occipital...Ch. 38 - Which of the following is not a true statement...Ch. 38 - The Haversian canal: is arranged as rods or plates...Ch. 38 - The epiphyseal plate: is arranged as rods or...
Ch. 38 - The cells responsible for bone resorption are...Ch. 38 - Compact bone is composed of trabeculae compacted...Ch. 38 - Osteoporosis is a condition where bones become...Ch. 38 - While assembling a skeleton of a new species, a...Ch. 38 - Synchondroses and symphyses are synovial joints...Ch. 38 - The movement of bone away from the midline of the...Ch. 38 - Which of the following is not a characteristic of...Ch. 38 - The elbow is an example of which type of joint?...Ch. 38 - A high ankle sprain iis an injury caused by over...Ch. 38 - In relaxed muscle, the myosin-binding site on...Ch. 38 - The cell membrane of a muscle fiber is called a...Ch. 38 - The muscle relaxes if no new nerve signal arrives....Ch. 38 - The ability of a muscle to generate tension...Ch. 38 - Botulinum toxin causes flaccid paralysis of the...Ch. 38 - What are the major differences between the male...Ch. 38 - What are the major differences between the pelvic...Ch. 38 - Both hydrostatic and exoskeletons can protect...Ch. 38 - Scoliosis is a medical condition where the spine...Ch. 38 - What are the major differences between spongy bone...Ch. 38 - What are the roles of osteoblasts, osteocytes, and...Ch. 38 - Thalidomide was a morning sickness drug given to...Ch. 38 - What movements occur at the hip joint and knees as...Ch. 38 - What movements) occur(s) at the scapulae when you...Ch. 38 - Describe the joints and motions involved in taking...Ch. 38 - How would muscle contractions be affected if ATP...Ch. 38 - What factors contribute to the amount of tension...Ch. 38 - What effect will low blood calcium have on...Ch. 38 - Skeletal muscles can only produce a mechanical...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Limiting Weights is the exercise that stimulates muscles to become stronger. As muscles gain in…. Which of the following processes occurs at the cellular level? Mitochondria is added to aid in ATP production. More calcium is released with each action potential. Larger diameter myochorils are added to each cell.arrow_forwardThe mechanism of contraction in smooth muscle is different from skeletal muscle in that the site of calcium binding differs ATP energizes the sliding process actin and myosin interact by the sliding filament mechanism the trigger for contraction is a rise in intracellular calcium the thick filaments have fewer myosin headsarrow_forwardOnce the calcium binds, what happens next? The myosin binding sites become available so myosin binds to the actin and "kicks" causing the filaments to slide past each other. The ATP lets go from the actin and moves back into the high-energy position, ready to "kick" again. The troponin binds to the tropomyosin preventing a contraction. The ATP attaches to the myosin head causing it to "kick" and the Z-lines move closer together.arrow_forward
- Bones are __________. a. mineral reservoirs b. skeletal muscle's partners c. sites where blood cells form d. all of the abovearrow_forwardCriteria Type of Skeleton Hydrostatic Exoskeleton Support composition hardness Movement flexibility Protection prevents damage retains moisturearrow_forwardEach of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase should take place after the 1st phrase. Which of the pairs of phrases is out of order? muscle cell action potential leads to neurotransmitter release motor neuron action potential leads to muscle cell action potential sarcolemma depolarization leads to an increase in cytosolic calcium rise in cytosolic calcium leads to cross bridge cyclearrow_forward
- Which of the following is not a true statement comparing exoskeletons and endoskeletons? a. Endoskeletons can support larger organisms. b. Only endoskeletons can grow as an organism grows. c. Exoskeletons provide greater protection of the internal organs. d. Exoskeletons provide less mechanical leverage.arrow_forwardWhich of the following best describes the diagram? A filament of myosin during cross bridge cycling. One motor unit An inactive actin filament The sliding filament theoryarrow_forwardWhich of the following is NOT a function of the muscular system? O Maintains posture and body position O Produces movement of the skeleton by pulling on tendons Circulates blood and nutrients throughout the body Maintains body temperaturearrow_forward
- Which of the following statements are true? (choose all that apply) The Z-disc is found in the middle of an l-band Myosin are known as the thick filaments The A-band is seen as "dark" under the microscope Tropomyosin is on the Actin filament During a muscle contraction, the sarcomeres move farther apart A sarcomere is located from one H-zone to the following H-zonearrow_forwardThe following is NOT a role of muscle tissue: support weight of visceral organs push on bones to initiate movement help maintain body temperature regulate the movement of materials through body openings Which of the following does NOT accurately describe tendons? "Continuous with the epimysium, perimysium, and endomysium" Larger in diameter than muscles. Attach a muscles to bones Cords of fibrous connective tissuearrow_forwardWhich of the following is NOT correct regarding muscle contraction? O Ca++ in the sarcoplasm returns to the nucleus to be stored ATP needs to be present for muscle relaxation A neurotransmitter is released at the neuromuscular junction ATP needs to be present for muscle contractionarrow_forward
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