cell specialization

Question 1

cell specialization:

Answer 1

process where cells develop to perform partichlar functions

Question 2

factors influencing cell specialization

Answer 2

1. contents of cells cytoplasm
2. environmental conditions such as TEMP, PRESSURE, nutrients
3. influence of neighbouring cells may activate or suppress genes

Question 3

the contents of a cells cytoplasm affects cell specialization bc

Answer 3

the number of each organelle may vary

Question 4

animal body levels of organization

Answer 4

1. cell (heart and muscle cell)
2. tissue (heart muscle tissue)
3. organ (heart)
4. organ system (circulatory system)

Question 5

the animal body hierarchy of organization is organized by

Answer 5

simplest to most complex

Question 6

epithelial tissue: layers of

Answer 6

tightly packed cells arranged in sheets/columns

Question 7

epithelial tissue covers the body ___

Answer 7

both externally and internally

Question 8

epithelial tissue is mainly for

Answer 8

protection

Question 9

muscle tissue: bundles of long cells containing

Answer 9

specialized proteins (able to shorten and lengthen)

Question 10

muscle fibers:

Answer 10

bundles of long cells in muscle tissue

Question 11

skeletal muscle tissue:

Answer 11

locomotion, makes bones move

Question 12

smooth muscle tissue:

Answer 12

squeezea substances through organs

Question 13

cardiac muscle tissue:

Answer 13

pumps blood

Question 14

connective tissue: various types of cells and fibres held together by

Answer 14

a solid, liquid, gel

Question 15

connective tissue function

Answer 15

strengthens, supports, connects cells and tissues

Question 16

nervous tissue: long thin cells with

Answer 16

fine branches at the ends to conduct electrical impulses

Question 17

neurons:

Answer 17

long thin cells in nervous tissue

Question 18

nervous tissue transmits and stores info,

Answer 18

responds to stimuli

Question 19

stem cells:

Answer 19

unspecialized cells

Question 20

stem cells undergo

Answer 20

mitosis and cytokinesis

Question 21

stem cells divide into two daughter cells, each daughter cell can

Answer 21

develop into a different type of cell based on the parts of its DNA that are switched on

Question 22

embryonic stem cells:

Answer 22

can differentiate into any kind of cell

Question 23

adult stem cells:

Answer 23

located in special areas, can only differentiate into certain types of cells depending on location

Question 24

adult stem cells can be in

Answer 24

bone marrow, differentiate into white or red blood cells