GENBIO - Cell Modification Flashcards

(46 cards)

1
Q

It occurs after cell division where the newly formed cells are structurally modified.

A

Cell Modification

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2
Q

Why Cell Modification Occur?

A

To be able to carry out their tasks efficiently

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3
Q

3 kinds of cell modification

A
  • Apical Modification
  • Basal Modification
  • Lateral Modification
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4
Q

Apical Modification presents at the _____________.

A

apical (top) surface

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5
Q

Apical Modification is used for _________.

A
  • absorption
  • secretion
  • movement
  • protection
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6
Q

5 types of apical modification

A

*Flagella (flagellum)
*Cilia (cilium)
*Microvilli (microvillus)
*Pseudopodia (pseudopodium)
*Stereocilia (stereocilium)

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7
Q

whip-like appendages

A

Flagella

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8
Q

used for locomotion

A

Flagella

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9
Q

also often functions as a sensory organelle

A

Flagella

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10
Q

Eukaryotes have true flagellum, almost half the human population produces cells with them in the form of ___________.

A

SPERM

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11
Q

This is the only cell in the human body with
flagellum.

A

SPERM

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12
Q

It increase the surface area for diffusion
and minimize any increase in volume

A

Microvilli

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13
Q

It is used for ABSORPTION, secretion, cellular adhesion, and mechanotransduction.

A

Microvilli

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14
Q

They are tiny little projections that exist in, on, and around cells.

A

Microvilli

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15
Q

fingerlike

A

Microvilli

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16
Q

The tissue has small fingerlike extensions
called __________.

A

villi

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17
Q

short hair like structures

A

Cilia

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18
Q

Cillia’s function is for

A

movement

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19
Q

They are primarily responsible for locomotion, either of the cell itself or of fluids on the cell surface.

20
Q

They are also involved in mechanoreception.

21
Q

They are the protozoans that possess cilia which they use for both locomotion and feeding.

22
Q

TWO TYPES OF CILIA

A

Motile Cillia
Non-Motile Cillia

23
Q

Motile cilia is always moving in a __________.

A

single direction

24
Q

Non-motile cilia is responsible for ___________.

A

for sensing the
surrounding environment.

25
They are also called Primary Cilia.
Non-Motile Cilia
26
A cilia are made up of ___________________.
made up of microtubules coated in plasma membrane
27
False feet, arm-like projections
Psuedopodia
28
Psuedopodia function is for __________.
Motility and ingestion
29
Long microvilli that function in increasing absorption
Stereocilia
30
Cell modification found on the basal surface of the cell
Basal Modification
31
2 types of basal modification
*Hemidesmosomes *Basal Infoldings
32
Provide strong and stable adhesion
Hemidesmosomes
33
Found in epithelium that are known to transport fluid (kidneys)
Basal Infoldings
34
Found on the lateral (side) surfaces
Lateral Modification
35
Facilitates cell-cell interactions and contribute to tissue integrity
Lateral Modification
36
3 types of Lateral modification
* Adhering Junction * Tight Junction * Gap Junction
37
Anchoring junction on the lateral surface of the cell
Adhering Junctions
38
Fasten cells to one another
Adhering Junctions
39
Contain actin and intermediate filaments
Adhering Junctions
40
Maintain integrity of the cell to better bind
Adhering Junctions
41
Also called Zonula Occludens
Tight Junctions
42
Regulate the movement of water and solutes
Tight Junctions
43
Preventing diffusion of water soluble molecules
Tight Junctions
44
Important in cell communication
Gap Junctions
45
It permit the free passage ions and small molecules
Gap Junctions
46
Involves Phatocytosis
Pseudopodia