Anatomy of Seed Plants

Question 1

define radicle

Answer 1

an immature root

Question 2

define plumule

Answer 2

2 miniature leaves

Question 3

define micropyle

Answer 3

a protective outer seed coat that has a microscopic hole where it was attached to the mother plant

Question 4

define node

Answer 4

the part of the stem of a plant from which a leaf, branch, or aerial root grows

Question 5

define scale scar

Answer 5

marks where a leaf was once attached

Question 6

define bud scale scar

Answer 6

a characteristic marking left on a stem when a bud falls off

Question 7

which type of plant roots usually do not regenerate a new plant when the existing one is cut down?

Answer 7

fibrous roots

Question 8

What are stems and shoots systems called in trees?

Answer 8

trunks and branches

Question 9

define lenticel

Answer 9

small openings on bark

Question 10

define actinomorphic

Answer 10

flowers that can be cut into equal halves along any diameter. These flowers are usually symmetrical

Ex: rose or tulip

Question 11

define zygomorphic

Answer 11

a flower that is only a mirrored image of itself when cut along one plane

Ex: pea flower or three leaved clover

Question 12

define receptacle

Answer 12

swollen base of a flower bud that is attached to the stem

Question 13

define sepal

Answer 13

a single member of structures called calyx

Question 14

define stamen

Answer 14

male reproductive structure made up of 2 parts

1. filament
2. anther

Question 15

define anther

Answer 15

oval tip that produces pollen grains

Question 16

define filament

Answer 16

think stalk

Question 17

define pistil

Answer 17

reproductive structure made up of 3 parts

1. stigma
2. style
3. ovary

Question 18

define stigma

Answer 18

sticky tip where pollen will adhere during pollination

Question 19

define style

Answer 19

where tube cell grows to reach the ovary

Question 20

define ovary

Answer 20

where fertilization occurs after the pollen sperm nuclei has traveled down the style

Question 21

along what part of the vein does the phloem carry sap?

Answer 21

along the bottom of the vein

Question 22

the age of a stem can be tracked by…

Answer 22

counting the bud scale scars

Question 23

define vascular bundle scars

Answer 23

tiny depressions where the vascular tissue was once connected between leaf and branch

Question 24

define calyx

Answer 24

leaf like structures at the base of flower petals; was once the outer covering of the bud

Question 25

define petal

Answer 25

serve to attract pollinators

found above the calyx