L12: Flower Anatomy and Development

Question 1

flower

Answer 1

the modified shoot of a plant which produces the reproductive structures

Question 2

inflorescence

Answer 2

a group of flowers arranged on a stem

Question 3

what does budding of leaf primordia from the SAM produce

Answer 3

vegetative growth

Question 4

what does budding of flowers from the SAM produce

Answer 4

reproductive growth

Question 5

sepal

Answer 5

a floral organ which, with the other sepals, forms the outmost whorl of modified leaves of a flower; collectively for the calyx; typically leaf-like and green

Question 6

calyx

Answer 6

all the sepals

Question 7

primary function of the sepals

Answer 7

protection

Question 8

petal

Answer 8

a floral organ, which, with all the other petals, forms the second whorl of modified leaves of the flower; often brightly colored to attract pollinators

Question 9

primary function of the petals

Answer 9

attraction

Question 10

corolla

Answer 10

all of the petals

Question 11

stamen

Answer 11

male reproductive organ of a flower that consist of an anther and filament and produces the microsporangia; 3rd whorl of the modified leaves of the flower

Question 12

androecium

Answer 12

all of the stamen

Question 13

primary function of the stamen

Answer 13

produce and release pollen (contains male gametes)

Question 14

pistil

Answer 14

female reproductive organ of a flower consisting of the stigma, style, and ovary; can be a simple pistil or a compound pistil; 4th whorl of modified leaves of a flower

Question 15

gynoecium

Answer 15

the pistil(s)

Question 16

simple pistil

Answer 16

1 carpel

Question 17

compound pistil

Answer 17

fusion of 2 or more carpels

Question 18

placements of organs relative to the pistil

Answer 18

hypogynous flower, perigynous flower, epigynous flower

Question 19

types of floral symmetry

Answer 19

regular/radially symmetric
irregular/bilaterally symmetric

Question 20

types of flower sex

Answer 20

perfect
bisexual
hermaphroditic
imperfect/unisexual (staminate or pistillate)

Question 21

2 types of plants with unisexual flowers

Answer 21

monoecious and dioecious

Question 22

monoecious

Answer 22

female and male flowers on the same plant

Question 23

Dioecious

Answer 23

female and male flowers on separate plants

Question 24

receptacle

Answer 24

the expanded tip of a flower stalk (pedicel or peduncle) to which the floral organs attach

Question 25

pedicel

Answer 25

a flower stalk which bears a flower that is part of an inflorescence

Question 26

peduncle

Answer 26

the flower stalk that bears an inflorescence of a solitary flower

Question 27

floral organs are ________ ________

Answer 27

modified leaves

Question 28

bract

Answer 28

a modified leaf associated with a flower

Question 29

flowering involves the switch of the SAM from ______ to ________

Answer 29

vegetative to reproductive

Question 30

what happens when the SAM switches from vegetative to reproductive

Answer 30

SAM becomes broader and more flattened

Question 31

flower whorls are produced from _____ to ________

Answer 31

inside

Question 32

determinate growth

Answer 32

apical meristem transforms into floral meristem. # of nodes will not increase