Unit 10: Cell Form And Function

Question 1

Tissue

Answer 1

A collection of cells that work together to perform a specific function

Question 2

Organ

Answer 2

Two or more tissues that combine and function together

Question 3

Cytoskeleton

Answer 3

Structural protein networks in the cytoplasm that determine the shape of cells

Question 4

Cellular Junctions

Answer 4

Structures that consist of cell adhesion molecules and other cytosolic proteins

Question 5

Extracellular Matrix

Answer 5

A meshwork of proteins and polysaccharides outside the cell that help with structural support

Question 6

Epidermis

Answer 6

A water resistant, protective outer layer of skin

Question 7

Dermis

Answer 7

Layer beneath the epidermis that helps support it

Question 8

Epithelial Tissue

Answer 8

A type of animal tissue in which cells are arranged in one or more layers

Question 9

Microtubules

Answer 9

A hollow tube formed from tubular dimers

Question 10

Tubulin

Answer 10

A protein that makes up a protein dimer

Question 11

Centrosome

Answer 11

An organizing centre in the cell periphery in animal cells that maintain their shape and withstand compression

Question 12

Cilia

Answer 12

Organelle that propels the movement of cells or substances surrounding the cell

Question 13

Flagella

Answer 13

Organelle that propels the movement of cells or substances surrounding the cell

Question 14

Spindle Apparatus

Answer 14

Separates replicated chromosomes during eukaryotic cell division

Question 15

Microfilaments

Answer 15

Polymers of actin monomers

Question 16

Actin

Answer 16

Protein involved in the composition of microfilaments

Question 17

Intermediate Filametns

Answer 17

Polymers of proteins that vary according to cell type and provide the cell with mechanical strength

Question 18

Dynamic Instability

Answer 18

The cycles of shrinkage and growth of microtubules

Question 19

Motor Proteins

Answer 19

Aids in the movement of microtubules

Question 20

Myosin

Answer 20

A motor protein found in muscle cells

Question 21

Kinesin

Answer 21

Transports cargo toward the plus end of the microtubules at the periphery of the cell

Question 22

Dynein

Answer 22

Carries it’s load away from the plasma membrane toward the minus end

Question 23

Cell Adhesion Molecules

Answer 23

Cell-surface proteins that attach cells to one another and to the extra cellular matrix

Question 24

Cadherins

Answer 24

Particularly important cell adhesion molecules

Question 25

Integrins

Answer 25

The cell adhesion molecules that enable cells to adhere to the extracellular matrix

Question 26

Adherens Junction

Answer 26

A band of actin that is attached to the plasma membrane by cadherins in a belt like functional complex

Question 27

Desmosomes

Answer 27

Buttonlike points of adhesion that hold the plasma membrane of adjacent cells together

Question 28

Tight Junctions

Answer 28

Establish a seal between cells so that the only way a substance can travel from one side of a sheet of epithelial cells to the other is by moving through the cells

Question 29

Gap Junctions

Answer 29

Formed when a set of integral membrane proteins arranged in a ring connects to a similar ring of proteins in the membrane of another cell

Question 30

Plasmodesmata

Answer 30

Passages though the cell walls of adjacent plant cells

Question 31

Hemidesmosome

Answer 31

A version of a desmosome that allow epithelial cells to firmly anchor to the basal lamina