Leaf anatomy

Question 1

what type of cells is the epidermis made out of

Answer 1

epidermal cells

Question 2

what color is the epidermis

Answer 2

clear- it lets sunlight pass through

Question 3

what molecule makes the epidermis waterproof

Answer 3

cutin

Question 4

Guard cells

Answer 4

surround stomatal pore
opens and closes it

Question 5

Are guard cells epidermal cells

Answer 5

yes

Question 6

Guard cell + stomatal pore =

Answer 6

stomata

Question 7

Trichomes

Answer 7

hair like extensions of epidermal cells

Question 8

are trichomes single cellular or multicellular

Answer 8

both

Question 9

how do trichombes help prevent water loss from a leaf

Answer 9

hairs = shade = cooler temp = humidity barrier = water not going from more to less = water staying in the plant if it’s wet out

Question 10

what types of plants have glands at the tips of their trichombes

Answer 10

plants that secrete digestive enzymes or irritants, or carnivorous plants

Question 11

do plants produce more or less tricombes during a drought

Answer 11

more- humidity barrier

Question 12

TF ichombes have little to no dictyosomes in them

Answer 12

f

Question 13

whats on top / bottom of vasc bundles in leaves

Answer 13

x on top
p on bottom

Question 14

do leaves have a vasc cambium

Answer 14

no- only in woody plants

Question 15

what surrounds the vasc buncles in leaves

Answer 15

bundle sheath

Question 16

is th ebundle sheath in dicot stems

Answer 16

no

Question 17

purpose of the bundle sheath

Answer 17

protect vasc bundles and control movement between water and sugars

Question 18

mesophyll

Answer 18

all leaf tissue that is not the vasc bundles and epidermus

Question 19

palisade mesophyll

Answer 19

between upper epidermis and vasc bundles

Top

Question 20

what is the main site of photosynthesis (type of tissue in leaves )

Answer 20

palisade mesophyll

Question 21

spongy mesophyll

Answer 21

parenchyma cells

bottom

Question 22

is the spongy mesophyll tightly or losely packed

Answer 22

loose bc CO2 diffuses through pores

Question 23

where is the apical meristem in dicots

Answer 23

mostly at top of plant

Question 24

where is the apical meristem in monocots

Answer 24

mostly bottom- crown of plant

Question 25

is there spongy or palisade mesophyll in monocots

Answer 25

none, just mesophyll

Question 26

are motor cells in monocots or dicots

Answer 26

mono

Question 27

what type of cells are motor cells

Answer 27

bulliform cells

Question 28

function of motor cells

Answer 28

swell and shrink- causes plant to move

curl up

Question 29

where are motor cells in th eplant

Answer 29

in upper epidermis of leaves

Question 30

How do motor cells respond to drought

Answer 30

leaves curl when vacuoles lose water

less surface area = less potential to lose water

Question 31

what element moves into guard cells during the day

Answer 31

potassium

Question 32

do stomata stay open during the day

Answer 32

yes unless theres drought stress

Question 33

K moves in bc

Answer 33

water follows K

Question 34

transpiration

Answer 34

loss of water frm a plant

Question 35

how does transpiration occur

Answer 35

through open stomata

Question 36

plants have to be able to replace the water they lsoe tf

Answer 36

t

Question 37

guttation

Answer 37

loss of liquid water from plant

drops ontop of leaf

Question 38

hydathodes

Answer 38

what guttation is releasaed from ontop of leaf

Question 39

where are hydathodes found

Answer 39

along the edges of leaves

Question 40

hydathode anatomy

Answer 40

pore at the edge of a leaf with terminal tracheid

Question 41

when does guttation occur

Answer 41

a lot of water pressure in plant

Question 42

Does guttation occur in the day or night

Answer 42

night

bc stomata closed

Question 43

does high or low humidity increase guttation

Answer 43

high

transpiration depends on evap which is reduced in humid conditions