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S377 Chapter 15

Mikki M 6 preguntas

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Preguntas del test (6)

  1. 1The numbers of [blank_start]differentiated cells[blank_end] of each type is determined by the [blank_start]requirements[blank_end] of the organism, and is affected by both the [blank_start]rate[blank_end] of cell production and the rate of cell [blank_start]death[blank_end].
    1. Adifferentiated cells
    2. Brequirements
    3. Crate
    4. Ddeath
  2. 2Cell division occurs during [blank_start]development[blank_end], and for many cells [blank_start]replacement[blank_end] (as a result of division of precursor or [blank_start]stem cells[blank_end]) occurs during adult life when necessary.
    1. Adevelopment
    2. Breplacement
    3. Cstem cells
  3. 3Growth factors such as [blank_start]erythropoietin[blank_end] can signal division and/or [blank_start]differentiation[blank_end] and therefore affect [blank_start]cell numbers[blank_end].
    1. Aerythropoietin
    2. Bdifferentiation
    3. Ccell numbers
  4. 4Cell positioning is signalled by direct [blank_start]cell–cell contacts[blank_end], and via [blank_start]soluble factors[blank_end]. During [blank_start]development[blank_end], differentiating cells find their correct position in the [blank_start]embryo[blank_end] and divide appropriately. In the adult, most cell types are [blank_start]fixed[blank_end] and only divide if [blank_start]extracellular signals[blank_end] are present.
    1. Acell–cell contacts
    2. Bsoluble factors
    3. Cdevelopment
    4. Dembryo
    5. Efixed
    6. Fextracellular signals
  5. 5Failure to respond appropriately to signals controlling cell division and cell position can lead to [blank_start]tumour[blank_end] development and progression.
    1. Atumour
  6. 6Changes in cell function involve changes in [blank_start]protein activity[blank_end], localization and/or expression. The speed of a physiological response to an [blank_start]extracellular[blank_end] signalling molecule is related to the activated network of [blank_start]signal transduction[blank_end] pathways leading to effects [blank_start]specific[blank_end] for an individual cell type.
    1. Aprotein activity
    2. Bextracellular
    3. Csignal transduction
    4. Dspecific

Información

Descripción
Quiz based on summary of chapter 15
Autor
Mikki M
Idioma
English
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35
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