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BMS 1001 > Cell Ultrastructure > Flashcards

Cell Ultrastructure Flashcards

1
Q

Name 4 types of tissue?

A

Epithelial - Lying and covering
Connective - Support
Muscle - Movement
Nervous - control

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2
Q

Cilli is found where?

A

Respiratory tract and Fallopian tubes

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3
Q

Microvilli is found where?

A

Digestive tract.

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4
Q

What does the Cilli contain?

A

Micro tubeules

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5
Q

What is the function of cilli?

A

To facilitate movement

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6
Q

What do micro villi contain?

A

Micro filaments (they are shorter than cilli)

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7
Q

What is the function of micro villi?

A

To increase surface area for absorption. They do not move and are shorter than cilli.

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8
Q

How many directions can the cilli move in?

A

One direction

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9
Q

Name the 3 sides of a cell.

A

Apical, basal, basolateral

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10
Q

The apical region of the epididymis is covered in sterocilli. this is mis-leading … why?

A

They are not cilli they are actually microvilli

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11
Q

Microvilli connect to the ………….?

A

Terminal web

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12
Q

What is the arrangement of the micro tubules within the cilli?

A

9 pairs of 2 micro - tubles and 1 pair of center micro-tubles

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13
Q

What is different about the base of the cilli compared to the mid section and tip?

A

It is a modified centriol and contains 9 triplets - micro tubules.

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14
Q

What is the name of the uneven surface on the side of the cell?

A

Lateral folding - prominent in cells that need to transport fluid quickly - to increase surface area

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15
Q

What is the name given to the uneven surface of the base layer of the cell?

A

Basal folding - prominent in cells that need to transport fluid quickly - to increase surface area.

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16
Q

Name the 3 different types of cell junction

A

Tight junction
Gap junction
Adherence Juntion

17
Q

There are two types of Adherence junctions. What are these called?

A

zonula Adherence - Belt Desmosomes - (band round the top) -

Macula adherence - Desmosomes (spot like)

18
Q

Where can you find the gap junction?

A

Epithelial tissue, cardiac and smooth muscle.

19
Q

Where would you find the hemi-desmosome?

A

Attached to the basal lamina or the basal membrane

20
Q

What is the function of Smooth ER?

A

To make hormones and lipids

21
Q

What is the cell membrane made of?

A

Lipids, steroids and proteins

22
Q

What is the cytosol?

A

Its the fluid within the cell

23
Q

What is the name of the fluid that lies around the outside of the cell?

A

Extra cellular fluid

24
Q

What is Exocytosis?

A

A process where materials exit the cell

25
Q

What is Endocytosis?

A

A process where materials enter the cell

26
Q

What is Phagocytosis?

A

The same as endocytosis just with pathogens

BMS 1001 (18 decks)

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