Test 1 Flashcards
Assuming these structures belong to an apple tree (angiosperm) arrange the following structures from largest to smallest?
1. sporophytes plant
2. embryo sac/ sporophyte plant
3. ovule
4. ovary
a. 1,4, 3, 2
b. 3, 1, 2, 4
c. 1, 2, 4, 3
d. 3, 4, 1, 2
a. 1,4, 3, 2
Sporophytes plant, ovary, ovules, embryo sac/ sporophyte plant
The pollen grain of the pine tree is produced in the-
a. megasporangium on the lead
b. microsporangium on the male cone
c. the antheridia of the gametophyte
d. the sorus of the sporophyte
b. microsporangium on the male cone
The eggs of seed plants are fertilized withing ovules, and the ovulates then develop into-
a. spores
b. fruit
c. ovaries
d. seeds
d. seeds
The cells within the pollen grains are ___ and will develop into the ______.
a. diploid—-spores
b. haploid—- male gametophytes
c. diploid—-sperm nuclei
d. diploid—- a new sporophyte
haploid—-male gametophyte
In the gymsopsperm plants, the oviulate cones (female), megasporctyes (megaspore mother cells) undergo____ and produce___ megaspores.
a. Mitosis—–2n diploid
b.Meiosis—-2N diploid
c.meiosis—-1N haploid
d. mitosis—1N haploid
c. meiosis—-1N haploid
In gymnosperms, the pollen in transported in the ovulate cone ovule by ____.
a. insects
b. mammals
c. rain or water
d. wind
d. wind
All seed plants are________.
a. all homosporous
b. mostly homosporous with some hetersporous
c. mostly hetersporous with some homosporous
d. all heterosporus
d. all heterosporus
What major plant structures diminishes a gymnosperm or angiosperm plants reliance on water for reproduction?
a. flower
b. fruit
c. pollen
d. spore
c. pollen
Which of the following traits characterizes gymnosperms?
a. the plants carry exposed seeds on modified leaves.
b. reproductive structures are located in a flower
c. After fertilization, the ovary thickens and forms a fruit,
d. the gametophyte is the longest phase of the life cycle.
a. the plants carry exposed seeds on modified leaves.
Megasporocytes seed producing plants will eventually produce which of the following?
a. pollen grains
b. sporophytes
c. male gametophytes
d. female gametophytes
d. female gametophytes
Pollen grains develop in which structures in angiosperms?
a. the anther
b. the stigma
c. the filament
d. the carpal
a. the anther
Which of the following structures in a flower is not directly involved in sexual reproduction?
a. the style
b. the stamen
c. the sepal
d. the anther
c. the sepal
Abundent and powerdy pollen produced by small, indistinct flowers like thoose found in the many grasses such as corn is probably transported by:
a. bees and butterflies
b. flies
c. birds
d. wind
d. wind
What is the plodidy (chromosome number) of the following structures: gametophyte, embryo in the seed, spore from a fern, sporophyte?
a. 1n, 1n, 2n, 2n
b. 1n, 2n, 1n, 2n
c. 2n, 1n, 2n, 1n
d. 2n, 2n, 1n, 1n
b. 1n, 2n, 1n, 2n
In the picture of the a flower below, what structures are part of the female reproductive structure?
a. sepals, petals and stigma
b. ovary, style and stigma
c. anther, filament, and the peduncle
d. peduncle, sepal and the style
b. ovary, style and stigma
Which of the following in a characteristics of all angiosperms?
a. complete reliance on wind in the pollinating agent
b. double internal fertilization producing zygote and endoderm
c. free leading gametophytes
d. ovules that are not contained within ovules
b. double internal fertilization producing zygote and endoderm
A mature unfertilized ovule (embryo sac or female gametophyte) in an angiosperm in the result of-
a. a single meotic division
b. a single miotic division
c. both meiotic and miotic division
d. mitosis from the megapsore a mother cell
c. both meiotic and miotic division
Which of the following is the correct sequence during the alternation of generation life cycle in a following plant?
a. sporogtye- meiosis- gametophyte- gametes- fertalization- diploid zygote
b. sporophyte- mitosis- gametophyte- meiosis- sporophyte
c. haploid gametophyte- gametes- meiosis- fertalization- diploid sphorophyte
d. sporophyte- spores- meiosis- gamtophyte- gametes
a. sporophyte- meiosis- gametophyte- gametes- fertilization- diploid zygote
Which of the following statements is true of most angiospoerms?
a. They have a tripod endosperm within the reef
b. They have an ovary that becomes a fruit
c. They have a small [reduceded] sporophyte
d. They have a triploid endosperm withing the seed and ovary that becomes a fruit
d. They have a triploid endosperm withing the seed and ovary that becomes a fruit
Which of the following is a true statement about the carpel of angiosperms?
a. carpels are structures that produce male pollen grains
b. carpels become the endosperm in seed plants
c. carpels are modified microsporangia
d. carpels surround and protect developing ovules
d. carpels surround and protect developing ovules
What structure is common to both angiosperms and gymnosperms?
a. ovary
b. ovule
c. anthers
d. carpel
b. ovule
What two process are directly involved in the seed formation of angiosperms and gymnosperms?
a. transpiration and fertilization
c. pollination and fertilization
b. fertilization and photosynthesis
d. pollination and osmosis
c. pollination and fertilization
A botanist discovers a new species of a plant in a tropical rain forest. After observing its anatomaty and life cycle, he notes the following characteristics flageilated sperm, xylem with trachieds, separate gametophyte and sporophytes generations within the sporophyte dominant, and no seeds. This plant is probably most closely related to-
a. mosses
b. ferns
c. gymnosperms
d. flowering plants
b. ferns