Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 47.1, Problem 5R
Summary Introduction
To review:
The reason behind the importance of gap junctions in smooth and cardiac muscles and not in skeletal muscles.
Introduction:
The gap junctions consist of small interconnections between the cells. Channel proteins like connexons help in the connection of gaps of one cell to other, which result in the direct communication of the cells. The direct communication is important in smooth and cardiac muscle cells. In case of plants, the cells are connected by plasmodesmata.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Which region or organelle—cytosol, mitochondrion, or SR—contains the highest concentration of calcium ions in a resting muscle fiber? Which structure provides the ATP needed for muscle activity?
Why is it important that skeletal muscle tissues work voluntarily and smooth and cardiac muscle tissues are involuntary?
A sarcomere lies between two?
Chapter 47 Solutions
Life: The Science of Biology
Knowledge Booster
Learn more about
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
- What basic physiological properties do a nerve cell and a muscle cell have in common? Name a physiological property of each that the other one lacks.arrow_forwardWhat are the similarities and differences between skeletalmuscle, cardiac muscle, and smooth muscle?arrow_forwardWhat is the importance of ATP in dissociating actin and myosin?arrow_forward
- Is actin is present in thin filament?arrow_forwardDo both cardiac and smooth muscle have gap junctions?arrow_forwardWhile the sarcoplasmic reticulum of muscle was first described by nineteenth-century microscopists, its true significance was not ap-preciated until its intricate structure was revealed much later by the electron microscope. What could you tell a nineteenth-century microscopist to enlighten him or her about the structure of the sarcoplasmic reticulum and its role in the coupling of excitation and contraction?arrow_forward
- Why does cardiac muscle have slow onset of contractionand prolonged contraction?arrow_forwardWhich statement is not true of muscle tissues?arrow_forwardWhy would cardiac muscle cells and some smooth muscle cells continue to contract even when their nerve supply has been removed or severed?arrow_forward
- If all nuclei are equivalent, what causes some cells to develop into neurons while others develop into skeletal muscle?arrow_forwardHow does the neuromuscular junction illustrate the general principle of physiology that the functions of organ systems are coordinated witheach other?arrow_forwardContractile bundles occur in nonmuscle cells; these structures are less organized than the sarcomeres of muscle cells. What is the purpose of nonmuscle contractile bundles?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Types of Human Body Tissue; Author: MooMooMath and Science;https://www.youtube.com/watch?v=O0ZvbPak4ck;License: Standard YouTube License, CC-BY