Lab 3: Angiosperms

Question 1

terminal bud

Answer 1

The bud located at the tip of a stem

Question 2

petal

Answer 2

part of the flower that immediately surrounds the reproductive structures

Question 3

seed

Answer 3

a mature fertilized ovule comprised of an embryo and its food source

Question 4

Insectivorous leaves

Answer 4

leaves specialized to trap insects/invertebrates

Question 5

Pith

Answer 5

main point/location in dicot wood comprised of parenchyma cells

Question 6

Leaf succulence

Answer 6

fleshy leaf specialized for water storage

Question 7

Stem succulence

Answer 7

thick, fleshy stem specialized for water storage

Question 8

Stem tendril

Answer 8

specialized stem, leaf, or petiole (stalk) with a threadlike shape that is used by climbing plants for support

Question 9

carpel

Answer 9

female reproductive structure(s) of a flower comprises the pistil

Question 10

Rhizome

Answer 10

is a modified underground stem that grows horizontally and may have leaves or adventitious roots growing out of it

Question 11

cork cambium

Answer 11

1 of 2 types of meristem cells in dicot wood

cells/tissues that differentiate into cork (which helps to waterproof and protect the dicot)

Question 12

Petiole

Answer 12

stalk

Question 13

summer wood

Answer 13

SMALLER layer of dicot stem/trunk wood formed in the SUMMER when water is LESS abundant; darker in color

Question 14

2 types of meristem (meristematic) cells in dicot wood

Answer 14

vascular cambium

cork cambium

Question 15

What (true) wood is made from

Answer 15

The water carrying veins called xylem

Question 16

vascular cambium

Answer 16

secondary xylem and phloem tissue

ring of formerly undifferentiated cells in dicot stem/trunk that differentiate into either xylem or phloem depending on whether they’re closer to the dicot’s pith or its bark

Question 17

corolla

Answer 17

collection of petals

Question 18

Corm

Answer 18

a thickened, usually underground/upright stem that accumulates food (such as starch)

Question 19

sepal

Answer 19

outermost leaf of the flower

usually green and for protection

Question 20

What shoots are for

Answer 20

Photosynthesis and polination

Question 21

phloem

Answer 21

tissue used to carry sugar to and from the leaves and roots

Question 22

sapwood

Answer 22

outer layer of wood in the dicot stem/trunk; soft, light in color, still used to transport water

secondary xylem that has not yet become hardwood

Question 23

Vascular cambium

Answer 23

1 of 2 types of meristem cells in dicot wood

cells/tissues that differentiate into xylem cells and/or phloem cells depending on whether they’re closer to the pith or the bark

Question 24

lenticel

Answer 24

spaces on the stem used for gas exchange

Question 25

Gymnosperm

Answer 25

a plant that has seeds Unprotected by an ovary or fruit

Question 26

Leaf tendril

Answer 26

A leaf tendril is a thread-like part of a leaf that attaches to a surface in order to help a vining plant secure itself.

Question 27

Tuber

Answer 27

Tuber is the thickened part of an underground stem of a plant, such as the potato, with buds from which new plant shoots grow.

Question 28

Thorn

Answer 28

hard, wooded, pointy branch to protect plant from herbivory

Question 29

spring wood

Answer 29

larger layer of dicot stem/trunk wood formed in the spring when water is more abundant; lighter in color

Question 30

Bract

Answer 30

Modified, usually small, leaflike structure often positioned beneath a flower that provides extra color to attract pollinators

Question 31

rosette

Answer 31

cluster of leaves in a circular pattern (like cabbage)

short, upright shoot with internodes (nubs) that

Question 32

pollen

Answer 32

males plant gametes (like sperm)

Question 33

What roots are for

Answer 33

food and water

Question 34

heartwood

Answer 34

the dead, hardened wood (in the center of the dicot/tree) that provides structural support of a dicot stem/trunk

closer to the center/pith of the stem, darker in color

Question 35

pistil

Answer 35

female reproductive structure of a flower

comprised of stigma, style, ovary, and ovule

Question 36

tendril

Answer 36

like a tentacle for a climbing plant

Question 37

Stipule

Answer 37

blade like appendage that can be found at the base of a leaf blade or leaf petiole

Question 38

ovule

Answer 38

haploid/unfertilized seed/what the seed is before it is fertilized

Question 39

calyx

Answer 39

collection of sepals

Question 40

Shoot

Answer 40

stems and young leaves of a new plant

Question 41

Angiosperm

Answer 41

a plant that has flowers and produces seeds within a carpel

NOT the same as gymnosperms!

Question 42

Stolon/runner

Answer 42

is a modified underground stem that grows horizontally and may produce more plants at the nodes (quickly propagating the original plant)

Question 43

Stem

Answer 43

one of two main structural axes of a vascular plant (besides the roots)

Question 44

xylem

Answer 44

tissue used to carry water from the roots to other parts of the plant (usually the leaves)

Question 45

spine

Answer 45

a hard, sharp-pointed structure that protects plants from herbivory (like a cactus spine)

Question 46

fruit

Answer 46

ripened ovary and enclosed seeds

Question 47

anther

Answer 47

male, pollen producing structure of a flower

Question 48

Bulb

Answer 48

a sight with a shirt stem and thick, fleshy leaves

Question 49

ovary

Answer 49

swollen bottom part of the pistil that contains the ovules (and eventually, the fertilized seeds)

Question 50

nodes

Answer 50

location on a stem from where leaves emerge

Question 51

Meristematic cells (in dicot wood)

Answer 51

undifferentiated cells, like stem cells, but for plants

tissue that is found in zones of the plant where growth can take place.

Question 52

stamen

Answer 52

male reproductive structure of the flower comprised of anther and filament

Question 53

stigma

Answer 53

landing space at the top of the pistil for pollen