Lab 9

Question 1

dermal tissue system

Answer 1

outer layer of cells, protection

Question 2

ground tissue system

Answer 2

everything enclosed by epidermis except vascular bundles, support

Question 3

vascular tissue system

Answer 3

vascular bundles, transport

Question 4

3 dermal tissue types

Answer 4

epidermis, cork, periderm

Question 5

epidermis cell types

Answer 5

guard cell, pavement cell, subsidiary cell

Question 6

cork cell type

Answer 6

cork cells

Question 7

periderm cell types

Answer 7

cork cambium cells, cork cells

Question 8

3 ground tissue types

Answer 8

parenchyma, collenchyma, sclerenchyma

Question 9

parenchyma cell type

Answer 9

parenchyma

Question 10

collenchyma cell type

Answer 10

collenchyma

Question 11

sclerenchyma cell types

Answer 11

fiber, sclerid

Question 12

vascular tissue types

Answer 12

xylem: transport water and nutrients from root
phloem: transport of sugars

Question 13

xylem cell types

Answer 13

tracheid, vessel element

Question 14

phloem cell types

Answer 14

sieve cell, companion cell, albuminous cell, sieve tube element

Question 15

pith

Answer 15

inside vascular bundles

Question 16

cortex

Answer 16

outside vascular bundles

Question 17

guard cells protection function

Answer 17

allow gas exchange, limit water loss

Question 18

trichomes protection function

Answer 18

trap water, some secrete sticky droplets to catch prey

Question 19

druses

Answer 19

jagged spheres

Question 20

raphides

Answer 20

needle shaped

Question 21

what are druses and raphides made from?

Answer 21

crystals of calcium oxalate

Question 22

collenchyma

Answer 22

unevenly thickened primary cell wall

Question 23

sclerenchyma

Answer 23

thickened secondary cell wall

Question 24

collenchyma and sclerenchyma provide

Answer 24

physical support

Question 25

sclerid/fiber

Answer 25

secondary cell wall contains lignin

Question 26

parenchyma

Answer 26

thin primary cell wall, support growth by metabolic activity

Question 27

metaxylem

Answer 27

continuous tubes running longitudinally
pitted secondary walls

Question 28

protoxylem

Answer 28

hoops or spirals, incomplete secondary walls
annular thickening: hoops
helical thickening: spirals

Question 29

sieve tube elements

Answer 29

long cells that transport sugars, accompanied by smaller companion cells