Exam 2 Flashcards

Biology 1030 with Bowling at Auburn University

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By: Rory Dane
Created: 2012-05-01
Size: 53 flashcards
Views: 34

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The absorption of water by root hairs is accomplished by:

A) osmosis of both ions and water

B) active transport of ions, followed by water coming in by osmosis

C) active transport of both water and ions

D) active transport of water, followed by ions coming in by osmosis

b) active transport of ions, followed by water coming in by osmosis

Which is true in the angiosperm life cycle?

A) gametophytes are totally dependent on the sporophytes

B) gametophytes are free-living and photosynthetic, but are replaced by a dominant sporophyte generation

c) sporophytes are totally dependent on the gametophytes

c) gametophytes are totally dependent on the sporophytes

Which is true in the moss life cycle?

A) gametophytes are totally dependent on the sporophytes

B) sporophytes are totally dependent on the gametophytes

C) both gametophytes and sporophytes are totally independent from each other and are equally dominant

D) gametophytes are photosynthetic and partially independent from the sporophytes

b) sporophytes are totally dependent on the gametophytes

A plant with red flowers with long, thick floral tubes and little odor is most likely pollinated by:

A) bees D) moths

B) birds E) butterflies

C) flies

b) birds

Most of the dry weight of a plant is the result of uptake of

A) water and minerals through root hairs.

B) carbohydrates in the root hairs and concentration in the root cortex.

C) CO₂ through stomata.

D) water and minerals through mycorrhizae.

E) CO₂ and H₂O through stomata.

c) CO₂ through stomata

Which of the following elements is a micronutrient in plants?

A) Mn D) Ca

B) Zr E) Mg

C) N

a) Mn

Members of this group spend most of their lives as free-living, individual cells, but with the proper trigger will aggregate into a multicellular form that migrates toward light.

A) Acrasiomycota D) Gymnamoeba

B) choanoflagellates E) Ciliophora

C) Myxomycota

a) Acrasiomycota

Members of this phylum have double shells of silica that fit together like a box and a lid. As members of the marine phytoplankton, they perform such a large percentage of the photosynthesis done in oceans that they are referred to as the “grass of the sea”. Fossils deposits of these organisms are mined for use in pest control, reflective paints, and filters.

A) Bacillariophyta D) Chrysophyta

B) Apicomplexa E) Radiolaria

C) Foraminifera

a) Bacillariophyta

Represented by 8 in the Eukarya tree above, which supergroup contains the organism Trypanosoma, the cause of African sleeping sickness?

A) Acrasiomycota D) Excavata

B) Apicomplexa E) Discicristata

C) Entamoeba

e) Discicistata

Which of the following Eukarya “supergroups” includes, among other groups, Oomycota and Chrysophyta?

A) Excavata D) Stramenopila

B) Archaeplastida E) Alveolata

C) Rhizaria

d) Stramenopila

e) spongy mesophyll

Rhizomes, tubers, corms, and stolons are examples of modified:

A) leaves. D) bulbs.

B) stems E) roots.

C) flowers.

b) stems

Which of the following best describes the general role of micronutrients in plants?

A) They are necessary for the formation of cell walls.

B) They are components of nucleic acids.

C) They are necessary for essential regulatory functions.

D) They prevent chlorosis.

E) They are cofactors in enzymatic reactions.

e) they are cofactors in enzymatic reactions

Zygosporangia are to zygomycetes as asci are to

A) basidiospores. D) sac fungi.

B) club fungi. E) chytrids.

C) ascospores.

d) sac fungi

c) zone of elongation

You are hiking in a forest and come upon a mysterious plant, which you determine is the sporophyte generation of a member of either Ph. Lycophyta or Pterophyta. Which would be most helpful in helping you correctly classify the plant?

A) whether it has true leaves or not

B) whether or not it has seeds

C) whether it has microphylls or megaphylls

D) its height

E) whether it has chlorophyll a or not

c) whether it has microphylls or mesophylls

Guard cells are the only cells in the epidermis that contain chloroplasts and can undergo photosynthesis. This is important because

A) chloroplasts sense when light is available so that guard cells will open.

B) photosynthesis provides energy necessary for contractile proteins to flex and open the guard cells.

C) guard cells produce power for active transport.

D) ATP is required to power proton pumps in the guard cell membranes.

d) ATP is required to power proton pumps in the guard cell membranes

c) Coniferophyta

e) Hepatophyta

c) 12

Based on the phylogeny that we are using in this course, which of the following groups or groupings is a sister taxon or sister group to Ascomycota?

A) Zygomycota plus Chytridiomycota

B) Basidiomycota

C) Basidiomycota plus Glomeromycota

D) Chytridiomycota
E) Glomeromycota

b) Basidiomycota

d) Zygomyctoa

In most fungi, karyogamy does not immediately follow plasmogamy, which consequently

A) allows fungi to reproduce asexually most of the time.

B) results in multiple diploid nuclei per cell.

C) means that sexual reproduction can occur in specialized structures.

D) is strong support for the claim that fungi are not truly eukaryotic.

E) results in heterokaryotic or dikaryotic cells.

e) results in heterokaryotic or dikaryotic cells

The plant tissue type that gives rise to all other plant tissues or cell types is:

A) epidermis D) meristem

B) protodermis E) ground tissue

C) vascular tissue

d) meristem

The tissue that directly gives rise to secondary phloem and secondary xylem is:

A) vascular cambium D) endodermis

B) ground meristem E) protodermis

C) apical meristem

a) vascular cambium

d) androecium

What tissue conducts sugars from the roots to stems and leaves?

A) xylem D) epidermis

B) periderm E) phloem

C) collenchyma

e) phloem

These “carnivorous” plants have a passive trap that insects fall into and have difficulty getting out of, in part due to downward pointing hairs. Eventually the exhausted insects get killed in a vat of water and digestive enzymes and/or bacteria and protists.

A) bladderworts (Utricularia)

B) butterworts (Penguicula)

C) sundews (Drosera)

D) Venus flytrap (Dionaea)

E) pitcher plants (Sarracenia and others)

c) pitcher plants

__________ is to xylem as __________ is to phloem.

A) Vascular cambium; cork cambium

B) Cortex; pith

C) Sclerenchyma cell; parenchyma cell

D) Vessel element; sieve-tube member

E) Apical meristem; vascular cambium

d) vessel element; sieve-tube member

A short-day plant will flower if

A) the duration of continuous darkness is less than a critical length.

B) the duration of continuous light exceeds a critical length.

C) the duration of continuous light is less than a critical length.

D) it is kept in continuous light.

E) the duration of continuous darkness exceeds a critical length.

e) the duration of continuous darkness exceeds a critical length

e) alternation of generations

What is the main force by which most of the water within xylem vessels moves toward the top of a tree?

A) evaporation of water through stomata

B) atmospheric pressure on roots

C) osmosis in the root

D) the force of root pressure

E) active transport of ions into the stele

a) evaporation of water through stomata

The plant hormone depicted above stimulates shoot elongation, bolting, and seed germination; what is it?

A) ethylene D) abscisic acid

B) gibberellin E) cytokinin

C) auxin

b) gibberellin

For most plants, the preferred soil type is a mix of mineral types that hold water well but not too well. This type of soil is called:

A) fallow D) clay

B) humus E) loam

C) sand

e) loam

Which of these is a fungal structure that is usually associated with asexual reproduction?

A) ascus D) zygosporangium

B) antheridium E) basidium

C) conidiophore

c) conidiophore

Which plant hormone is primarily responsible for promoting fruit ripening?

A) cytokinin D) abscisic acid

B) auxin E) gibberellin

C) ethylene

c) ethylene

Water flows into the source end of a sieve tube b/c:

A) sucrose has diffused into the sieve tube, making it hypertonic.

B) the companion cell of a sieve tube actively pumps in water.

C) sucrose has been actively transported into the sieve tube, making it hypertonic.

D) sucrose has been dumped from the sieve tube by active transport.

E) H₂O pressure outsd the sieve tube forces in H₂O

C) sucrose has been actively transported into the sieve tube, making it hypertonic.

b) pinnately compound

b) cortex

The transduction pathway that activates plant defense response against pathogens called systemic acquired resistance is signaled by

A) Pfr phytochrome. D) abscisic acid.

B) salicylic acid E) antisense RNA.

C) red, but not far-red, light.

b) salicylic acid

Egg cells in angiosperms are produced by

A) 2N cells from the sporophyte that gave rise to the female gametophyte.

B) 1N cells from the sporophyte that gave rise to the female gametophyte.

C) 1N cells from the female gametophyte.

D) 2N cells from the embryo.

E) 3N cells from the endosperm.

c) 1N cells from the female gametophyte

e) A and D equally

We know from the experiments of the past that plants bend toward light because

A) cell expansion is greater on the dark side of the stem.

B) they need sunlight energy for photosynthesis.

C) phytochrome stimulates florigen production.

D) auxin is inactive on the dark side of the stem.

E) the sun stimulates stem growth.

a) cell expansion is greater on the dark side of the stem

e) water lilies and relatives

Ground tissue cells specialized mainly for performing photosynthesis are called:

A) chlorenchyma D) trichomes

B) collenchyma E) guard cells

C) sclerenchyma

a) chlorenchyma

The term embryo sac in flowering plants refers to

A) the male gametophyte.

B) the female gametophyte.

C) the ovary.

D) the seed.

E) the young plant that develops from the zygote

b) the female gametophyte

primary phloem, secondary phloem, secondary xylem, primary xylem

The plant hormone that affects opening and closing of stomata, that promotes bud dormancy, and that will produce a yellowed area when applied to a green leaf is:

A) auxin D) gibberellin

B) cytokinin E) abscisic acid

C) ethylene

e) abscisic acid

Members of this phylum form endomycorrhizae, also called arbuscular mycorrhizae, an important mutualism for plants.

A) Chytridiomycota D) Ascomycota

B) Zygomycota E) Glomeromycota

C) Basidiomycota

e) Glomeromycota

About this deck

By: Rory Dane
Created: 2012-05-01
Size: 53 flashcards
Views: 34

About StudyBlue

“I have used this website for three exams, and I see a huge difference in my test results.”
Naj