Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Chapter 6, Problem 13CTQ
Describe the similarities and differences between the cytokinesis mechanisms found in animal cells versus those in plant cells.
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Describe the similarities and differences between the cytokinesis mechanisms found in animal cells vs those in plant cells
Cytokinesis in plant cells is different than cytokinesis in animal cells. a) Explain why it has to be different, andb) briefly describe the processes in the two different cell types.
Describe and compare cytokinesis in animal and plant cells
Chapter 6 Solutions
Concepts of Biology
Ch. 6 - Figure 6.4 Which of the following is the correct...Ch. 6 - A diploid cell has _ ____ the number of...Ch. 6 - An organism’s traits are determined by the...Ch. 6 - Chromosomes are duplicated during what portion of...Ch. 6 - Separation of the sister chromatids is a...Ch. 6 - The individual chromosomes become visible with a...Ch. 6 - What is necessary for a cell to pass the G2...Ch. 6 - ________ are changes to the nucleotides in a...Ch. 6 - A gene that codes for a positive cell cycle...Ch. 6 - Which eukaryotic cell-cycle event is missing in...
Ch. 6 - FtsZ proteins direct the formation of a ________...Ch. 6 - Compare and contrast a human somatic cell to a...Ch. 6 - Describe the similarities and differences between...Ch. 6 - Outline the steps that lead to a cell becoming...Ch. 6 - Explain the difference between a proto-oncogene...Ch. 6 - Name the common components of eukaryotic cell...
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- Which of the following are stages in the cytokinesis of animal cells? Select all that apply. A) The cell plate expands along the plane of division, and when the plate fuses with the plasma membrane, the cytoplasm is partitioned into two new cells. B)After telophase, the contractile ring constricts the plasma membrane and forms a cleavage furrow. C)The contractile ring reaches its smallest diameter, and the spindle microtubules are cut as vesicles form the new membranes that separate the two new cells. D)A contractile ring of microfilaments and motor proteins forms under the plasma membrane during anaphase.arrow_forwardWhich of the following are stages in the cytokinesis of animal cells? Select all that apply. A) The cell plate expands along the plane of division, and when the plate fuses with the plasma membrane, the cytoplasm is partitioned into two new cells. B) After telophase, the contractile ring constricts the plasma membrane and forms a cleavage furrow. C) The contractile ring reaches its smallest diameter, and the spindle microtubules are cut as vesicles form the new membranes that separate the two new cells. D) A contractile ring of microfilaments and motor proteins forms under the plasma membrane during anaphase.Assessment questionarrow_forwardOutline the key differences between cytokinesis in animaland plant cellsarrow_forward
- List the similarities and differences between the cytokines mechanisms found in animal cells versus those in plants cells.arrow_forwardDiscuss the special features of cytokinesis in a higher plant cell.arrow_forwardCompare and contrast cytokinesis in animal cells with cytokinesis in plant cells.arrow_forward
- What is the main difference between cytokinesis in plants and animals?arrow_forwardList and describe the three main types of cytoskeleton. If you wanted to do immunocytochemistry to specifically stain each type of cytoskeleton, what is a protein that could be used for each cytoskeletal type (in other words, what is a unique protein for each cytoskeletal type)? What are three types of actin structures? Describe the involvement of actin structures in cell migration. How is the growth and shrinking of microtubules regulated? Then describe the roles of microtubules in: chromosomal separation during mitosis and the movement of organelles and vesicles within a cell. Describe a possible mechanism on how signaling pathways might impact the cytoskeleton, so that cell migration could be regulated in a localized manner within a multicellular organism. (hint: think about the possible transcriptional regulation of the G-protein regulators) What are 2 main challenges of protein targeting? Then describe one way these challenges are overcome during signal-based targeting and one way…arrow_forwardHow can we test the functional role of cytoplasm mutants in cytokinesis?arrow_forward
- While they are similar in many ways, some key differences occur late in the mitotic division. Describe the similarities and differences between the cytokinesis mechanisms found in animal cells versus those in plant cells.arrow_forwardIn normally dividing cells, once chromosomes have been properly segregated via the steps of mitosis, the two resulting “daughter cells” separate. In animal cells (and other cell types without a cell wall) the contractile ring plays a crucial role in the process of cytokinesis. Exactly how the contractile ring is accurately positioned, so as to be located midway between the two poles (ends) of the dividing cell, is still not fully understood, although factors released from the mitotic spindle are thought to play a role.Regardless of the precise positioning mechanism, one key player in the assembly of the contractile ring is the GTP/GDP binding protein Rho. In its active form, Rho can stimulate the activity of the actin-binding protein formin and (via effects on the myosin regulatory light chain) that of myosin II. Given their respective roles, why might activation of formin and myosin II be beneficial as cells assemble a functional contractile ring structure?arrow_forwardCytokinesis , or division of the cytoplasm to create two new daughter cells , occurs in conjunction with telophase . Examine the telophase micrographs of the onion root tip and whitefish blastodisc cells . How does cytokinesis look different for these two cells ? Explain why cytokinesis looks different between those cellsarrow_forward
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