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BIOL 107 > Lecture slides 12-14 (SLIDE 6) > Flashcards

Lecture slides 12-14 (SLIDE 6) Flashcards

1
Q

The cytoplasm of eukaryote cells is spatially organized
- achieved by a network of 3 different types of protein filaments
1._________________
2.__________________
3.__________________

This network is collectively known as
the ______________.

A

i) Microtubules (thick)
ii) Actin filaments or
microfilaments (thin)
iii) Intermediate filaments

  • cytoskeleton
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2
Q

Functions of the cytoskeleton:
-gives shape and support to ____
-(especially in _______- no cell wall and not all cells attach to the ECM)

-allows cells to change ______
(by disassembling in one part of the cell and reassembling in another part)

-can act as a system of ________throughout the cell
-________ may attach to the cables, and some move along them

A
  • cells
  • animal cells
    -shape
    -“cables”
    -organelles
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3
Q
  1. Microtubules
    -straight, _______tubes
    - walls of the tube are constructed with ________
A

-hollow
-proteins called tublins

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4
Q
  1. Microtubules
A
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5
Q
  1. Microtubules
A
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6
Q
  1. Microtubules
    In cells, the minus ends of microtubules are anchored in structures
    called ____________.
    -MTOC
    -an ______ structure
    - composed of many ________.
    -one of these is another kind of tubulin, _______.
A

-microtubule organizing centers (MTOCs)
-organized
- different proteins
- gamma-tubulin (g-tubulin)

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7
Q
  1. Microtubules
A
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8
Q
  1. Microtubules
A
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9
Q
  1. Microtubules
A
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10
Q
  1. Microtubules
A
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11
Q
  1. Microtubules
A
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12
Q
  1. Microtubules
A
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13
Q
  1. Microtubules
A
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14
Q
  1. Actin Filaments
A
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15
Q
  1. Actin Filaments
A
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16
Q
  1. Actin Filaments
A
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17
Q
  1. Intermediate Filaments
A
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18
Q
  1. Intermediate Filaments
A
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19
Q

Metabolism and Energy
Cells are mini chemical factories - they perform thousands of reactions
The totality of an organism’s chemical reactions, managing the materials and
energy resources of the cell is termed ________

A
  • metabolism.
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20
Q

Energy
-In physics, it is often defined as the capacity to do work, (i.e., when a
force operates on an object over a distance).
-In biochemistry, it is useful to think of energy as a _______.
In reactions, energy changes are associated with changes in the ______ and ________.
Energy comes in many forms:
chemical, electrical, heat, light, mechanical

A
  • capacity for change.
    -chemical structures
    -properties of molecules.
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BIOL 107 (14 decks)

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