the most recent common ancestor of all land plants was most similar to which group?
Cyanbacteria
Red algae
Charophycea
Brown algae
Golden algae
Answer: 3. Charophycea
Which of the following is characteristsic of alternation of generations in land plants?
Haploid sporophytes make haploid spores
Gametophytes produce spores that develop into gametes
Sporophytes and gametophytes are typically similar in apearance
Meiosis is sporophytes produces haploid spores
Either the gametophyte or the sporophytes is unicellular
Answer: 4. Meiosis is sporophytes produces haploid spores
Plant sporesgive rise directly to
Sporophytes
Gametes
Gametophytes
Sporophylls
Seeds
Answer: 3. Gametophytes
The following are al true except:
External water is required for fertilization
Flagellated sperm are produced
Antheridia and Archegonia are poduced by gametophytes
Gametes are directly produced by meiosis
Gametophytes germinate from spores
Answer: 4. Gametes are directly produced by meiosis
If a fern gametophyte is hermaphrodite (it has both male and female gametengia) then it…
Belongs to a species that is homosporous
Must be a diploid
Has lost the need fro a sporophyte generation
has antheridia and archegonia combined into a single sex organ
Is a mutant, because fern gametophytes are always either male or female
Answer: 1. Belongs to a species that is homosporous
Which of these characteristsics is shared by algae and seed plants
Embryo development within gametangia
Roots and shoots
Vascular tissue
Pollen
Chloroplasts
Which of the following is not common to all phyla of vascular plants?
The development of seeds
Alteration of generations
Dominance of the diploid generation
Xylem and phloem
The addition of lignin to cell walls
Answer: 1. The development of seeds
whichc of the following is a land plant that produces flagellated sperm and has a sporophyte dominant life cycle?
Fern
Moss
Lerwart
Charophycean
Hornwort
Answer: 1. Fern
The products of meiosis are always which of the following:
Spores
Eggs
Sperm
Seeds
Both B and C
Answer: 1. Spores
Which of the following is not true concerning the sporophyte or gametophyte generations of flowering plants?
The flower is composed of gametophyte tissue only
The sporophyte generation is dominate
the sporophyte generation is what we see when looking ata large plant
The gametophyte generation is not photosynthetic
the gametophyte generation. consists of relitivly few cells within the flower
Answer: 1. The flower is composed of gametophyte tissue only
Which number represents the mature gametophyte
1
3
5
7
11
Answer 4.7
withing the gymnosperm megasprangium, what is the correct sequence in which the following should appear during development, assuming that ferilization occurs? A) Sporophyte embryo, B)Female gametophyte, C)Egg cell, D)Megaspore
D, C, B, A
D, B, C, A
D, A, B, C
A, D, C, B
A, D, B, C
Answer: 2. D, B, C, A
Which structure is common to both gymnosperms and angiosperms?
Male strobilus
Carpel
Ovule
Ovary
Anthers
Answer: 3. Ovule
All of the following are sporophyte structure except…
Immature ovules
Pollen tubes
Ovaries
STamens
Sepals
Answer: 2. Pollen tubes
How have fruits contributed to the success of angiosperms?
By nourishing the plants that make them
By facilitating dispersal of seeds
By attracting insects to the pollen inside
By producing sperm and eggs inside a protective coat
By producing triploid cells via double fertilization
Answer: 2.Byfacilitatingdispersalofseeds
In Onions (alluimum), cells of the sporophytes have 16 chromosomes within each nucleus. Match the number of chromosomes present in each of the onion tissues listed below
4
8
16
24
32
How many chromosomesshould be in an endosperm nucleus?
Answer: 4. 24
Which of the following flower parts develops into a fruit?
Stigma
Style
Ovule
Ovary
Receptacle
Answer: 4. Ovary
In flowering plants the integuments of the ovule develop into a(n)
Endosperm
Cotyledon
Fruit
Sporophyte
Seed coat
Answer: 5. Seed coat
Gymnosperms and angiosperms have the following i common except…
Seeds
Pollen
Vascular tissue
Ovaries
Ovules
Answer: 4. Ovaries
Label 7
Flowers
Embryos
Seeds
Vascular tissues
Anwser: 2. Embryos
All of the following are features of the angiosperms except…
A triploid endosperm
An ovary that becomes a fruit
Animal pollination
A small (reduced) sporophyte
Double fertilization
Answer: 4. A small (reduced) sporophyte
all of the folllowing are primary functions of flowers except…
Pollen production
Photosynthesis
Meiosis
Egg production
Sexual reproduction
Answer: 2. Photosynthesis
in flowering plants, pollen is released from the
Anther
Stigma
Carpel
Filament
Pollen tube
Answer: 1. Anther
Which of the following occurs in an angiosperm ovule?
An antheridium forms from the megasporophyte
A megaspore mother undergoes meiosis
The egg nucleus is isually diploid
A polen tube emerges to accept pollen after pollination
The endosperm surrounds the megaspore mother cell
Answer: 2. A megaspore mother undergoes meiosis
In flowering plants, a mature male gametophyte contains…
Two haploid gametes and diploid pollen grain
A generative cell and a tube cell
Two sperm nuclei and one tube cell nucleus
Two haploid microspores
A haploid nucleus and a diploid pollen wall
Answer: Two sperm nuclei and one tube cell nucleus
A fruit includes…
One or more seeds
The ovary wall
Fleshy cells rich in sugars
Brightly colored pigments to attract animal disperesers
Both 1 and 2
Answer: 5.Both1and2
Fruits develope from…
Microsporangia
Receptacles
Fertilized eggs
Ovaries
Ovules
Answer: 4. Ovaries
What is endosperm?
The male portion of a flowering plant
A food-storage tissue of the seed
The leaves that are part of the embryo
The female portion of a flowering plant
Tissue that develops into a protective seed coat surrounding the embryo
Answer: 2. A food-storage tissue of the seed
A plant that has small, green petals is most likely to be…
Bee-pollinated
Bird-pollinated
Bat-pollinated
Wind-pollinated
Answer: 4. Wind-pollinated
Which part of the plant absorbs most of the water and minerals taken up from the soil?
Taproots
Root hairs
The thick aprts of the roots near the base of the stem
STorage roots
Sections of the root that have secondary xylem
Answer: 2. Root hairs
Land plants are composed of all the following tissue types except…
Mesodermal
Epidermal
Meristematic
Vascular
Ground tissue
Answer: 1. Mesodermal
The fiber cells of plat are a type of
Parenchyma
Sclerenchyma
Collenchyma
Meristematic cell
Phloem
Answer: 2. Sclerenchyma
Which of the following is true about secondary growth in plants?
Flowers may have secondary growth
Secondary growth is a common feature of eudicot leaves
Secondary growth is produced by both vascular cambium and the cork cambium
Primary growth and secondary growth alternate in the life cycle of a plant
Plants with secondary growth are typically the smallest ones in an ecosystem
Answer: 3. Secondary growth is produced by both vascular cambium and the cork cambium
Which of the following rooot tissues gives rise to lateral roots?
Endodermis
Phloem
Cortex
Epidermis
Pericycle
Answer: E. Pericycle
Pores on the leaf surface that function in gas exchanges are called…
Hairs
Xylem cells
Phloem cells
Stomata
Sclereids
Answer: 4. Stomata
What tissue makes up most of the wood of a tree?
Primary xylem
Sceondray xylem
Secondary phloem
Mesophyll
Vascular cambium
Answer: 2. Secondary xylem
The vascular system of a three-year-old eudicot stem consists of…