BIO101 plant biology homework
Name ___________________________________
1. Label the parts of the flower: petal, stigma, filament, ovary, sepal, pistil, stamen
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
________________________ contains plant ovum
________________________ contains pollen sacs
________________________ traps pollen, female part
________________________ structure that pollen tube travels through
________________________ advertisement for pollinator, brightly colored
________________________ protects the floral bud
________________________, ________________________ compose the carpal
________________________ ,________________________ compose the anther
________________________ one structure missing in an incomplete flower
________________________ site of male gametophyte development
Is this plant a monocot or a eudicot? ________________________ (half of the flower is shown)
Is this plant an angiosperm? ________________________
2. Sporophyte or gametophyte (S or G)
a. ___Forms via meiosis
b. ___Adult plant
c. ___Polar nuclei
d. ___Plant embryo
e. ___Stem
f. ___Pollen grain
g. ___ Megaspore
h. ___Microsporocyte mother cell
i. ___ Diploid
j. ___ Haploid
k. ___ Egg nucleus
1
BIO101 plant biology homework
3. Which of the structures in the previous question are associated with female structures?
4. Match the tissue type.
_____ ground tissue external to vascular tissue
____ may be triploid (3n), stores nutrients for developing seed
_____ protects against water loss and disease
_____ , ____2 dermal tissues
_____ transports water from roots to plant
_____ may exhibit trichomes
_____ transports nutrients throughout plant
_____, _______ 2 vascular tissues
_____ ground tissue internal to vascular tissue
_____ perpetual embryonic tissue
A. Endosperm
B. Epidermis
C. Xylem
D. Phloem
E. Cortex
F. Periderm
G. Meristem
H. Pith
5. Parenchyma, Collenchyma, or Sclerenchyma? (P, C, S)
a.
b.
c.
d.
e.
f.
_____ fleshy tissue of fruits
_____ resilient cells provide flexible support as in celery stem
_____ least specialized plant cells, alive at maturity
_____ rigid support for plants
_____dead cells at functional maturity
_____ thick secondary plant cell walls with lignin
6. Xylem or Phloem or Both (X or P or B)
a. ____ tracheid cells
b. ____ transports nutrients such as sugar
c. ____ sieve tube element cells
d. ____ forms vascular bundles
e. ____ forms wood in secondary growth
f. ____ present in a eudicot stem
g. ____ transports water from roots to rest of plant
7. Groups of 3
a. 3 types of life cycles of flowering plants
b. 3 particle types in soil
c. 3 components of topsoil
d. 3 live organisms in topsoil
e. 3 factors that affect soil quality
f. 3 plant macronutrients
g. 3 functions of rhizobacteria
h. 3 features of a monocot plant
i. 3 features of a eudicot plant
j. 3 groups of vascular plants
k. 3 cells found in the male gametophyte
l. 3 modes of pollination used by angiosperms
2
BIO101 plant biology homework
8. Fill in. You may use answers more than once or not at all
embryo sac
haploid
diploid
meiosis
mitosis
angiosperm
gymnosperm
sperm
pollen grain
microsporangium
megaspores
pollen tube
polar nuclei
cotyledon
a. A diploid megasporocyte mother cell is undergoes a type of cell division called ________ to produce 4
haploid ______________, 1 of which survives.
b. In the female reproductive organ of the plant, the ____________, a multinucleate structure with 8
haploid nuclei, (one of which is the ovum) forms.
c. Also known as a pollen sac, contains cells that produce the male gametophyte ________
d. The male gametophyte is also known as a ____________
e. After double fertilization occurs in the angiosperm, the zygote is _______________ and the cell that will
develop into the endosperm is _________________
f. The structure that extends through the style to deliver sperm to the female gametophyte is the
________________
g. The endosperm is formed by the union of a sperm and 2 _______
h. Double fertilization is a characteristic unique to the group of plants known as _________
i. The first plant leaves to form are __________________s
9. Place in correct order for angiosperm double fertilization
2 sperm cells are released from male gametophyte into embryo sac
Diploid sporophyte develops
Microsporangium bursts open
Microsporocyte cells in microsporangium produce microspores
Pollen grains land on stigma
Pollen tube grows from tube cell in male gametophyte into ovary
Zygote and embryo formation
10. 1n, 2n, or 3n
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
Haploid cell
Sperm cell
Polar nuclei
Zygote
Megasporocyte cell
Megaspore
Endosperm
Diploid cell
Sporophyte
Cell with 3 sets of chromosomes
Leaf cell
Ovum/egg
3