Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 4, Problem 12SQ
Summary Introduction
Introduction: Cell junctions are multiprotein structures that link cells to each other and to the environment. They help in cell–cell communication and signal transduction in multicellular organisms such as animals and plants. They can be classified as intercellular and extracellular.
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Actin is found in _______. Microtubules are found in ________
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mitotic spindles and microvilli, flagella and cilia
b.
microvilli and flagella, lamellipodium and cilia
c.
microvilli and lamellipodium, flagella and cilia
d.
flagella and lamellipodium, flagella and desmosomes
e.
flagella and cilia, microvilli and lamellipodium
Clear my choice
FtsZ proteins direct the formation of a _______ that will eventually form the new cell walls of the daughter cells. a. contractile ring b. cell plate c. cytoskeleton d. septum
Which of the following junctions allows for cytoplasm-to-cytoplasmcommunication between cells?a. adhesion junctions c. gap junctionsb. tight junctions d. None of these are correct.
Chapter 4 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 4 - Effects of Kartagener Syndrome An abnormal form of...Ch. 4 - All cells have these three things in common:...Ch. 4 - Which of the following is,not a principle of the...Ch. 4 - The surface-to-volume ratio _______. a. does not...Ch. 4 - A plasma membrane ________. a. controls exchanges...Ch. 4 - True or false? Ribosomes are only found in...Ch. 4 - Unlike eukaryotic cells, prokaryotic cells ______....Ch. 4 - What controls the passage of molecules into and...Ch. 4 - The main function of the endomembrane system is:...Ch. 4 - Enzymes. contalned in _______ break down worn-out...
Ch. 4 - Put the following structures in order according to...Ch. 4 - Which of the following statements is false? a. The...Ch. 4 - Prob. 12SQCh. 4 - Which of the following organelles contains no DNA?...Ch. 4 - No animal cell has a ___________. a. plasma...Ch. 4 - Prob. 15SQCh. 4 - Expalin the difference between cytosol and...Ch. 4 - In a classic episode of Star Trek, a gigantic...Ch. 4 - Prob. 3CTCh. 4 - What type or micrograph is shown below? Is the...
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- Which of these cell junctions are open channels that connect the cytoplasm of adjoining plant cells? A. Adhering junctions B. Tight junctions C. Gap junctions D. Plasmodesmataarrow_forwardWhich of the following is not a function of proteins present in theplasma membrane?a. Proteins assist the passage of materials into the cell.b. Proteins interact with and recognize other cells.c. Proteins bind with specific hormones.d. Proteins carry out specific metabolic reactions.e. Proteins produce lipid molecules.arrow_forwardWhich cell junctions form junctions between cells connected to the cytoskeleton? a. tight junctionsb. hemidesmosomesc. desmosomesd. focal adhesionse. gap junctionsarrow_forward
- Animal cells signal to adjacent cells using a ________. a. gap junction b. desmosomes c. tight junctionarrow_forwardWhich of the following cell organelles contains RNA? a. Mitochondria b. Plastids c. Lysosomes d. Ribosomesarrow_forwardThe main function of plasma membranes is to ________. a. physically protect the cell b. separate the internal environment of the cell from the environment c. ensure the cell properly communicates with stimuliarrow_forward
- Actin is found in Microtubules are found in Select one: a. microvilli and flagella, lamellipodium and cilia Ob. flagella and lamellipodium, flagella and desmosomes c. mitotic spindles and microvilli, flagella and cilia d. microvilli and lamellipodium, flagella and cilia e. flagella and cilia, microvilli and lamellípodium ycle HW due Jump to. O Next page cancer stem cellsarrow_forwardThe tigroid lysis is observed in a case of functional exhaustion of the neuron. It is resulted in decay of basophilic substance and brightening of the neuroplasma. What organelles changes do this phenomenon is associated with? a. Granular endoplasmic reticulum O b. Lysosomes O c. Neurofibrils d. Golgi apparatus O e. Mitochondriaarrow_forwardChoose answer of the following Which of the following junctions allows for cytoplasm-to-cytoplasmcommunication between cells?a. adhesion junctionsb. tight junctionsc. gap junctionsd. None of these are correct.arrow_forward
- The main difference between plant and animal cells is: A Plant cells has small vacuoles B Animal cell lacks rigid cell wall C Animal cells has large vacuoles D Plant cell lacks rigid cell wallarrow_forward________ is the process of a cell taking in needed molecules from the extracellular fluid. a. Phagocytosis b. Receptor-mediated endocytosis c. Pinocytosisarrow_forwardA cellular process is shown in stages from left to right in the image. Which of the following is the depicted process, with the correct description of its function? Outiside of cell Plasma Membrane -00 0--00 8-88-8 8-88-8 A. Endocytosis; initiation of signal transduction B. Endocytosis; uptake of nutrients C. Exocytosis; breakdown of wastes D. Exocytosis; secretion of proteinsarrow_forward
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