Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Chapter 4, Problem 38CTQ
You are watching cells in a dish spontaneously contract. They are all contracting at different rates; some fast, some slow. After a while, several cells link up and they begin contracting in synchrony. Discuss what is going on and what type of cells you are looking at.
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You are watching cells in a dish spontaneously contract. They are all contracting at different rates; some fast, some slow. After a while, several cells link up and they begin contracting in synchrony. Discuss what is going onand what type of cells you are looking at.
Which of the following statements is a lie?
Select one:
a. The contractile ring further contracts until the membrane becomes completely cleaved into two.
b. Cytokinesis occurs differently in animal and plant cells.
c. Cytokinesis is more complex in animal cells than in plant cells.
When the membrane is at rest, what are the forces acting on sodium ions?A. Both the concentration gradient and the electrical gradient tend to move sodium ions into the cell.B. Both the concentration gradient and the electrical gradient tend to move sodium ions out of the cell.C. The concentration gradient tends to move sodium ions into the cell, and the electrical gradient tends to move them out of the cell.D. The concentration gradient tends to move sodium ions out of the cell, and the electrical gradient tends to move them into the cell.
Chapter 4 Solutions
Anatomy & Physiology
Ch. 4 - View this slideshow...Ch. 4 - Watch this video...Ch. 4 - Visit this link...Ch. 4 - Watch this video...Ch. 4 - Follow this link...Ch. 4 - Watch this video...Ch. 4 - Watch this video...Ch. 4 - Which of the following is not a type of tissue?...Ch. 4 - The process by which a less specialized cell...Ch. 4 - Differentiated cells in a developing embryo derive...
Ch. 4 - Which of the following lines the body cavities...Ch. 4 - In observing epithelial cells under a microscope,...Ch. 4 - Which of the following is the epithelial tissue...Ch. 4 - Which type of epithelial tissue specializes in...Ch. 4 - The ________ exocrine gland stores its secretion...Ch. 4 - Connective tissue is made of which three essential...Ch. 4 - Under the microscope, a tissue specimen shows...Ch. 4 - Which connective tissue specializes in storage of...Ch. 4 - Ligaments connect bones together and withstand a...Ch. 4 - In adults, new connective tissue cells originate...Ch. 4 - In bone, the main cells are ________. fibroblasts...Ch. 4 - Striations, cylindrical cells, and multiple nuclei...Ch. 4 - The cells of muscles, myocytes, develop from...Ch. 4 - Skeletal muscle is composed of very hard working...Ch. 4 - The cells responsible for the transmission of the...Ch. 4 - The nerve impulse travels down a(n) ________, away...Ch. 4 - Which of the following central nervous system...Ch. 4 - Which of the following processes is not a cardinal...Ch. 4 - When a mast cell reacts to an irritation, which of...Ch. 4 - Atrophy refers to ________. loss of elasticity...Ch. 4 - Individuals can slow the rate of aging by...Ch. 4 - Identify the four types of tissue in the body, and...Ch. 4 - The zygote is described as totipotent because it...Ch. 4 - What is the function of synovial membranes?Ch. 4 - The structure of a tissue usually is optimized for...Ch. 4 - One of the main functions of connective tissue is...Ch. 4 - Why does an injury to cartilage, especially...Ch. 4 - You are watching cells in a dish spontaneously...Ch. 4 - Why does skeletal muscle look striated?Ch. 4 - Which morphological adaptations of neurons make...Ch. 4 - What are the functions of astrocytes?Ch. 4 - Why is it important to watch for increased...Ch. 4 - Aspirin is a non-steroidal anti-inflammatory drug...Ch. 4 - As an individual ages, a constellation of symptoms...Ch. 4 - Discuss changes that occur in cells as a person...
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- When the membrane is at rest, what are the forces acting on potassium ions?A. Both the concentration gradient and the electrical gradient tend to move potassium ions into the cell.B. Both the concentration gradient and the electrical gradient tend to move potassium ions out of the cell.C. The concentration gradient tends to move potassium ions into the cell, and the electrical gradient tends to move them out of the cell.D. The concentration gradient tends to move potassium ions out of the cell, and the electrical gradient tends to move them into the cell.arrow_forward_________ allow cardiac muscle cells to contract in unison. a. Tight junctions c. Gap junctions b. Adhering junctions d. all of the abovearrow_forwardThe actin filaments network provides mechanical support,determines cell shape, and allows for cell movements true falsearrow_forward
- What type of cell is long fibers with striations and many nuclei which can be controlled voluntarily or involuntarily? a.skeletal muscle cells b.red blood cells c.stratified squamous epithelial cells d.nerve cells e.all of the cell typesarrow_forwardYou have been asked to do a strucutural study to understand how increasing cell surface area affects cell size, cell shape and functions. What cell type would help you most efficiently observe the effects of increasing surface area? Choices: A. Monocytes from the blood serum. Monocytes are largely roughly spherical cells. B. Red Blood cells from the bone marrow. The shape of Red blood cells is a biconcave disk and looks like a donut. C. Stem cells from skin. In this case assume a skin stem cell is flat and plate like. D. Microvilli covered cells from the intestines. Microvilli are tiny hair like protrusions in the plasma membrane of intestinal cells that increase the absorption of nutrients in the intestines.arrow_forwardWhat is necessary to make a cleavage furrow during cytokinesis? A. Kinesin "walking" along microtubules B. Myosin filaments shortening C. Actin and myosin-mediated contraction D. All of the above E. None of the abovearrow_forward
- Which of the following cell junctions is involved with anchoring the extracIular matrix to the cell? (LO-K8) I-Adherens junctions II-Desmosomes III-Hemidesmosomes IV-Gap junctions I, II, III, and IV III and IV I and III I, II and IIIarrow_forwardMatch the cell organelle with its function. Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. Cell membrane Cell wall Nucleus Cytoplasm Mitochondria Chloroplast Vacuole Storage Control center Shape and protection in plant cell Liquid that fills cell Powerhouse of the cell Location of photosynthesis Controls what goes in and out of the cellarrow_forwardRank the following by their ease of crossing the plasma membrane: a. Easiest - Ca2+ - H2O - O2 - Hardest b. Easiest - H2O - O2 - Ca2+ - Hardest c. Easiest - O2 - H2O - Ca2+ - Hardest d. Easiest - Ca2+ - O2 - H2O - Hardestarrow_forward
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