Ground Tissues

Question 1

what are the ground tissues?

Answer 1

parenchyma
collenchyma
sclerenchyma

Question 2

most basic tissue

Answer 2

parenchyma

Question 3

parenchyma functions (5)

Answer 3

photosynthesis
storage
support (if turgid)
production of other tissues (totipotent)
production of secondary metabolites (goes with storage)

Question 4

parenchyma location?

Answer 4

everywhere, daddio

Question 5

aerenchyma is a type of

& what is it

Answer 5

parenchyma

have huge intracellular air spaces for buoyancy, usually in aquatic plants

Question 6

aerenchyma can result from

Answer 6

schizogeny (splitting apart) or lysogeny (cell death) of parenchyma cells

Question 7

aerenchyma allows for (2)

Answer 7

floating/buoyancy

& oxygenation

Question 8

parenchyma cells only have

Answer 8

1* cell walls

Question 9

collenchyma function

Answer 9

primarily in support of young growing tissues or plants with low amounts or no wood (ex: celery, nopalitos)

Question 10

collenchyma cells only have

Answer 10

unevenly thickened 1* cell walls

Question 11

collenchyma cells don’t have (2)

Answer 11

lignin

2* cw’s

Question 12

collenchyma cells are rich in

Answer 12

pectin & hemicellulose

Question 13

collenchyma shape

Answer 13

angular and lamellar

Question 14

collenchyma are

Answer 14

plastic

Question 15

sclerenchyma function

Answer 15

support tissue

Question 16

sclerenchyma cell traits (3)

Answer 16

2* cw’s

• usually lignified
• often several layers

Question 17

sclerenchyma cells at maturity

Answer 17

can be dead or alive

Question 18

sclerenchyma are

Answer 18

elastic

Question 19

2 types of sclerenchyma

Answer 19

sclereids

fibers

Question 20

sclereids are

Answer 20

usually derived from parenchyma cells

Question 21

sclereids with intrusive growth

Answer 21

asterosclereids

trichosclereids

Question 22

brachysclereids retain

Answer 22

overall shape of parenchyma cells they derived from

Question 23

sclereids usually occur

Answer 23

in the outer regions of the stem (cortex), inner regions (pith), and leaves

Question 24

fibers shape

Answer 24

elongated & tapered at the ends

Question 25

fiber growth =

Answer 25

intrusive

Question 26

fibers often associated with

Answer 26

vascular tissue

Question 27

fiber strength

Answer 27

extremely strong

Question 28

fibers form from

Answer 28

parenchyma or are produced with vascular tissues (to protect it)

Question 29

fibers located

Answer 29

stems & leaves

Question 30

fibers may be evolutionarily derived from

Answer 30

water transport cells