AP Biology Plants

;)

...

Stomata are: A. waxy layers that cover leaves. B. openings in the leaf epidermis. C. extensions of bundle sheaths. D. particularly numerous on the upper epidermis. E. guarded by two stipule cells.

B

The rate of transpiration increases under all of the following conditions except: A. increased wind. B. increased humidity. C. increased temperature. D. presence of sunlight. E. an increase in dry air.

B

The transition from the gametophyte into the sporophyte generation occurs at the point in Figure 27-2 labeled: A. 1. B. 4. C. 6. D. 8. E. 9.

B

Which of the following is a vascular plant? A. moss B. fern C. liverwort D. hornwort E. charophyte

B

Which of the following is not a seedless plant? A. moss B. conifer C. fern D. club moss E. hornwort

B

Which one of the following is mismatched? A. ground tissue!photosynthesis B. vascular tissue!storage C. dermal tissue!covering of plant body D. ground tissue!storage E. vascular tissue!transport

B

Leaves: A. represent a fairly small fraction of the overall metabolic budget for a plant. B. depend on the roots to supply CO2. C. are the main photosynthetic organ of most plants. D. are the main site of water uptake in plants. E. All of these.

C

Parenchyma, collenchyma, and sclerenchyma are classified as: A. dermal tissues. B. vascular tissues. C. ground tissues. D. primary tissues. E. secondary tissues

C

A basic difference between gymnosperms and flowering plants is: A. gymnosperms produce seeds that are enclosed within a fruit, while flowering plants produce seeds borne naked. B. gymnosperms produce flowers that have floral parts arranged in threes, or multiples of threes, while flowering plants have floral parts arranged in fours or in multiples of four. C. gymnosperms produce only cones, while flowering plants produce both flowers and cones. D. gymnosperms produce seeds borne naked, while flowering plants produce seeds enclosed within a fruit. E. None of these.

E

Both gymnosperms and angiosperms: A. are heterosporous. B. lack a free-living gametophyte stage. C. posses vascular tissues. D. produce seeds. E. All of these.

E

Growth that results in an increase in the girth of a plant is referred to as: A. horizontal growth. B. longitudinal growth. C. primary growth. D. radial growth. E. secondary growth.

E

Seeds are reproductively superior to spores because: A. seeds contain a multicellular young plant. B. only seeds can survive for an extended period of time. C. seeds are used as a food source for humans. D. seeds are protected by a multicellular seed coat. E. seeds contain a young plant and also are protected by a seed coat.

E

A key step in the evolution of vascular plants was the ability to produce __________, a strengthening polymer in the walls of cells that function in support and conduction. A. lignin B. cellulose C. starch D. fructose E. cutin

A

A plant with parallel veins and floral parts in threes or multiples of three would be classified as: A. a monocot. B. a gymnosperm. C. a eudicot. D. a gnetophyte. E. a cotyledonous plant.

A

Alternation of generations in plants refers to the alternation of: A. diploid and haploid stages. B. male and female stages. C. meiotic and mitotic stages. D. spore and seed stages. E. thallus and leaf stages.

A

During the photosynthetic process, __________ diffuses into the leaf, while __________ diffuses out of the leaf. A. carbon dioxide; oxygen B. oxygen; carbon dioxide C. oxygen; water vapor D. water vapor; carbon dioxide E. water vapor; oxygen

A

In plants, ovules develop into: A. seeds. B. fruits. C. corolla. D. calyx. E. bracts.

A

Primary growth involves: A. an increase in length. B. an increase in girth. C. a production of secondary xylem. D. a production of cork cells. E. a division of vascular cambium cells.

A

The needles of pines and other conifers are adapted to: A. conserve water. B. defend against herbivores. C. reduce the effects of intense sunlight. D. reduce the effects of snow and ice. E. reduce the effects of wind.

A

An important difference between plants and algae is that a __________ covers the aerial portion of a plant. A. chlorophyll. B. waxy cuticle C. lignin D. stomata with guard cells E. cellulos

B

Eudicot leaves typically have: A. alternately palmate venation. B. netted venation. C. parallel venation. D. alternately pinnate venation. E. no venation.

B

Ferns lack: A. rhizomes. B. seeds. C. vascular tissue. D. sexual reproduction. E. photosynthesis.

B

Growth that results in an increase in stem or root length occurs in which specific area of the plant? A. lateral meristem B. apical meristem C. vascular cambium D. cork cambium E. periderm

B

In most mature eudicot seeds, the primary source of nutritive material is in the: A. embryo. B. cotyledons. C. zygote. D. endosperm. E. micropyle.

B

In plants, ovaries develop into: A. seeds. B. fruits. C. corolla. D. calyx. E. bracts.

B

Photosynthesis occurs chiefly in the leaf's: A. epidermis. B. bundle sheath extensions. C. mesophyll. D. trichomes. E. vascular bundles.

C

Plants are thought to have evolved from a group of algae known as: A. red algae. B. cyanobacteria. C. charophytes. D. dinoflagellates. E. diatoms.

C

Pollination is occurring at the point of Figure 28-2 labeled: A. Process A. B. Process B. C. Process C. D. Process D. E. None of these

C

The endosperm of an angiosperm seed is typically: A. haploid (1n). B. diploid (2n). C. triploid (3n). D. quadraploid (4n). E. pentaploid (5n).

C

The most common, and most recent group of plants to evolve are the: A. liverworts. B. hornworts. C. angiosperms. D. gymnosperms. E. mosses.

C

The organization of tissues in Figure 33-2 is characteristic of: A. a stem. B. a spine. C. a leaf. D. a bulb. E. a bud scale.

C

The primary function of spongy mesophyll is: A. photosynthesis. B. transpiration. C. to allow diffusion of gases. D. transport of substances. E. transport of water.

C

In a flowering plant, the __________ is the site of meiosis and, ultimately, the production of pollen. A. stigma B. style C. carpel D. anther E. filament

D

The flower in angiosperms is analogous to what in the gymnosperms? A. prothallium B. pistil C. naked seed D. cone E. anther

D

The process of photosynthesis involves the conversion of: A. oxygen and water into sugar. B. sugar into starches and cellulose. C. oxygen and sugar into water. D. carbon dioxide and water into sugar. E. sugar and water into lipids.

D

When plants have a distinct haploid stage and diploid stage, this is referred to as: A. asexual and sexual generations. B. binary generations. C. mitotic and meiotic generations. D. alternation of generations. E. parthenocarpy.

D

Which structure or structures function to open and close the stomata? A. cuticle B. mesophyll C. palisade cells D. guard cells E. chloroplasts

D

Xylem is to phloem as: A. conducts dissolved sugars is to conducts amino acids and water. B. conducts water and dissolved minerals is to conducts dissolved salts. C. conducts dissolved organic compounds is to conducts inorganic compounds. D. conducts water and dissolved minerals is to conducts dissolved sugar. E. None of these

D