Cell Ultrastructure Flashcards Preview

BMS 1001 > Cell Ultrastructure > Flashcards

Flashcards in Cell Ultrastructure Deck (26):
1

Name 4 types of tissue?

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

2

Cilli is found where?

Respiratory tract and Fallopian tubes

3

Microvilli is found where?

Digestive tract.

4

What does the Cilli contain?

Micro tubeules

5

What is the function of cilli?

To facilitate movement

6

What do micro villi contain?

Micro filaments (they are shorter than cilli)

7

What is the function of micro villi?

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

8

How many directions can the cilli move in?

One direction

9

Name the 3 sides of a cell.

Apical, basal, basolateral

10

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

They are not cilli they are actually microvilli

11

Microvilli connect to the .............?

Terminal web

12

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

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

13

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

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

14

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

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

15

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

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

16

Name the 3 different types of cell junction

Tight junction
Gap junction
Adherence Juntion

17

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

zonula Adherence - Belt Desmosomes - (band round the top) -
Macula adherence - Desmosomes (spot like)

18

Where can you find the gap junction?

Epithelial tissue, cardiac and smooth muscle.

19

Where would you find the hemi-desmosome?

Attached to the basal lamina or the basal membrane

20

What is the function of Smooth ER?

To make hormones and lipids

21

What is the cell membrane made of?

Lipids, steroids and proteins

22

What is the cytosol?

Its the fluid within the cell

23

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

Extra cellular fluid

24

What is Exocytosis?

A process where materials exit the cell

25

What is Endocytosis?

A process where materials enter the cell

26

What is Phagocytosis?

The same as endocytosis just with pathogens