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BOT 201 > Lab Quiz 1 > Flashcards

Lab Quiz 1 Flashcards

1
Q

Cell with primary cell wall (from Pear), stains…

A

…purple because only has cellulose in cell wall

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2
Q

Cell with secondary cell wall (from Pear) stains…

A

…blue because it contains both lignin and cellulose

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3
Q

(onion cell) nucleus location

A

pushed to the side by the central vacuole in the center of the cell

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4
Q

chloroplast shape

A

oval

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5
Q

chloroplast function

A

photosynthesis

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6
Q

chloroplast movement called

A

“cytoplasmic streaming”

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7
Q

chloroplast movement caused by

A

movement of the cytoskeleton (cytoplasmic streaming)

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8
Q

amyloplast function & importance

A

starch storage

good energy source for humans

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9
Q

what is a druse?

where is it found?

A

intracellular calcium oxalate crystals

found within the central vacuole of the cell

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10
Q

apical meristem overall shape

A

dome

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11
Q

leaf primordial

A

surround and protects apical meristem

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12
Q

apical mersitem tunica location & function

A

at the top of the dome

gives rise to epidermis

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13
Q

apical mersitem corpus location and function

A

towards center of dome

gives rise to body of plant (ground meristem)

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14
Q

2 regions of stem dominated by…

A

…parenchyma: pith & cortex

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15
Q

parenchyma in cortex size and function

A

smaller and function as aids in photosynthesis (chlorenchyma)

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16
Q

parenchyma in pith size and function

A

larger and function as storage cells (parenchyma)

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17
Q

Chlorenchyma is a type of ______.
contains?
location?

A

type of parenchyma that contains chloroplasts, located just below epidermis

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18
Q

(water lily leaf) specialized parenchyma =

A

aerenchyma (with large air spaces for buoyancy)

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19
Q

collenchyma primary cell walls are

A

unevenly thickened

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20
Q

In celery, the bundles of _____ are found where?

A

collenchyma are found just under the epidermis in the region of the stem called the cortex (just under “ridges” of celery stem)

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21
Q

(1) schlerenchyma –>

& what kind of growth?

A

asterosclereid with intrusive growth

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22
Q

(2) schlerenchyma –>

with what to notice?

A

brachysclereid with pits (look like lines) in lignified secondary cell wall

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23
Q

(3) schlerenchyma –>

& function

A

fiber with intrusive growth along axis of plant

their long thin shape and stiff lignified walls help keep the stem supported upright

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24
Q

guard cell function

A

to open and close the stomate (stoma) for the transfer of gases

25
Q

Subsidiary cell function

A

assist the guard cells in this function

26
Q

stomate (stoma) =

A

guard cells + pore

27
Q

trichomes =

& what shapes they can take

A

outgrowths of leaf epidermal cells

simple hair-like, glandular, branched hair-like, stellate/star-like

28
Q

vascular bundles contain

& orientation

A

phloem & xylem (vascular tissue)

phloem (smaller) towards outside of stem / xylem (larger) towards inside of stem

29
Q

phloem function

A

transports sugars

30
Q

xylem function

A

transports water (and mineral nutrients)

31
Q

xylem cell walls are stained ____ because _____….

A

red because they have a strong substance/chemical in their cell walls called lignin

32
Q

Xylem =

A

Tracheids + Vessel elements

33
Q

Xylem: Tracheids vs Vessel elements (shape & function)

A
  • Vessel elements = large and wide, & are stacked end to end for more rapid transport of water
  • Tracheids = thinner and longer & come to tapered ends, & they are not stacked end to end
34
Q

flowering plants main transport phloem cells =

A

sieve tube elements (sieve tube cells + sieve plate + companion cells)

35
Q

non-flowering plants main transport phloem cells =

A

sieve cells (with help of albuminous cells)

36
Q

types of viewing sections

A

cross/transvers section (top-down)
radial (up & down + side to side)
tangential/longitudinal (up & down)

37
Q

axial regions show…

radial regions show…

A

vessels, tracheas, fibers, phloem, xylem

rays (modified parenchyma cells)

38
Q

secondary phloem aka

A

inner bark

39
Q

secondary xylem aka

A

wood

40
Q

bark has

A

suberin

41
Q

wood has

A

lignin

42
Q

bark includes

A

cork

43
Q

appearance of rings in wood due to

A

late wood’s smaller vessels

44
Q

fiber walls thin or thick?

& function?

A

thick walls and function in support of vascular tissue

45
Q

each wood ring =

A

one year of plant growth

46
Q

early wood vs late wood

A 
early wood (big & light colored)
late wood (small/squished & darker)
47
Q

pine wood xylem only has

A

tracheids (no vessels)

48
Q

tracheids have

A

bordered pits

49
Q

bordered pits have

A

margo (outer) & torus (inner)

50
Q

perforation plates of flowering wood are

A

simple plates

51
Q

The cell in flowering plants that most resembles tracheids is the

A

fiber!

52
Q

secondary phloem blue/dark structure =

A

fibers

53
Q

sieve tube elements have

A

companion cells on each side of them

54
Q

cork cambium separates

A

cork and cork parenchyma (phelloderm)

55
Q

core cells at maturity are ____ & why?

A

dead & allows them to take damage without puhng the living tissue of the plant at risk, so the functioning of the plant is not disrupted

56
Q

vascular cambium arises from

A

procambium

57
Q

fascicular cambium

A

separates xylem and phloem

58
Q

interfasicular cambium

A

connects fascicular cambiums

59
Q

fascicular cambium + interfasicular cambium =

A

vascular cambium

BOT 201 (26 decks)

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