Biology 301 Practice for the Exam III
Biology 301 Practice - Exam III - Set 2
Instructions:  This page includes a sample of questions relating to coverage of dicot subclasses Rosidae and Asteridae.   You may answer as many or as few questions as you wish, in any order. When you are ready to check your performance, scroll to the bottom and click the 'Submit' button.   All questions you answered will be graded, and your score will be shown at the bottom of the exam.   You can also retry questions that you missed by using the link at the bottom of the page that shows your results and this process can be repeated.  This 'drill' system is under development.  Please contact Dr. Wilson (h-wilson@tamu.edu) with problems or comments.
1) Which family of the Fabales is characterized by a zygomorphic corolla with no connation:

  1. Mimosaceae
  2. Fabaceae
  3. Caesalpiniaceae
2) Identify the gynoecium type that is typical of the Umbelliferae:

  1. bicarpellate, ovary with 4 locules, each with an ovule
  2. bicarpellate, carpels joined only at the top, mature ovary a follicle
  3. tricarpellate, each with many ovules
  4. bicarpellate, single locule and ovule, fruit an achene
  5. bicarpellate, fruit splitting into 2 single-seeded mericarps
3) Match taxon with description:  Family characterized by the presence, in most genera, of synantherous stamens

  1. Lamiaceae
  2. Fabaceae
  3. Asteraceae
  4. Brassicaceae
  5. Rosaceae
4) Match taxon with associated structure: haustoria

  1. Fabaceae
  2. Cuscutaceae
  3. Apiaceae
  4. Euphorbia
  5. Asteraceae
5) The common surface of mericarps or the area of separation is known as the:

  1. caruncle
  2. replum
  3. commissure
  4. connective
  5. translator arm
6) The gynostegium is the result of:

  1. aestivation
  2. adnation between stamens and stigma
  3. parasitism
  4. adnation between androecium and perianth
  5. connation within the perianth
7) Indicate the capitulum type, pictured below, that includes both zygomorphic and actinomorphic florets:

Figure 2

  1. ligulate
  2. radiate
  3. discoid
  4. cymose
  5. emarginate
8) The structure at pointer 'A' in Figure 2 (above) represents:

  1. phyllary
  2. pappus
  3. chaff
  4. receptacle
  5. ray floret
9) Differentiate among families that are characterized by the presence of a sympetalous corolla:  corolla actinomorphic, plicate, funnelform

  1. Convolvulaceae
  2. Scrophulariaceae
  3. Lamiaceae
  4. Polemoniaceae
  5. Asclepiadaceae
10) Match taxon with description:  Family characterized by the presence of sympetaly, opposite leaves, stipules, and eipgyny

  1. Lamiaceae
  2. Boraginaceae
  3. Rubiaceae
  4. Crassulaceae
  5. Caprifoliaceae
11) Identify the Genus:  includes potatoes and eggplant - stamens epipetalous with poricidal anthers

  1. Lupinus
  2. Solanum
  3. Rosa
  4. Malus
  5. Prunus
12) The term 'caruncle' is applied to outgrowths from the (1)         that are often found in taxa of the (2)        :

  1. corona (1), Asclepiadaceae (2)
  2. seed (1), Euphorbiaceae (2)
  3. ovary (1), Asteraceae (2)
  4. fruit (1), Umbelliferae (2)
  5. endocarp (1), Prunoideae (2)
13) Identify the gynoecium type that is typical of the Boraginaceae:

  1. bicarpellate, ovary with 4 locules, each with an ovule
  2. bicarpellate, single locule and ovule, fruit an achene
  3. tricarpellate, each with many ovules
  4. bicarpellate, carpels joined only at the top, mature ovary a follicle
  5. bicarpellate, fruit splitting into 2 single-seeded mericarps
14) Identify the genus:   treated as a monotypic family by Cronquist, that represents a specialized (parasitic) off-shoot of the Convolvulaceae

  1. Helianthus
  2. Hypericum
  3. Cuscuta
  4. Sedum
  5. Raphanus
15) Genera of the Compositae with a ligulate inflorescence will often also show:

  1. opposite leaves
  2. latex production
  3. bimorphic phyllaries
  4. arils
  5. no pappus
16) Link family with its crop species:  Prunus persica

  1. Onagraceae
  2. Rosaceae
  3. Asteraceae
  4. Solanaceae
  5. Apiaceae
17) Identify the taxon of the Rosidae with an APOCARPOUS gynoecium:

  1. Crassulaceae
  2. Asteraceae
  3. Rutaceae
  4. Onagraceae
  5. Maloideae
18) Identify the Genus:  includes apples and pears - gynoecium syncarpous, ovary inferior

  1. Lupinus
  2. Solanum
  3. Rosa
  4. Malus
  5. Prunus
19) Subfamilies of the Rosaceae share common features of the (1      and (2)      , and are distinctive because of variation in the (3)      :

  1. (1) calyx, (2) corolla, (3) androecium
  2. (1) gynoecium, (2) androperianth, (3) calyx
  3. (1) androecium, (2) corolla, (3) calyx
  4. (1) perianth, (2) gynoecium, (3) androecium
  5. (1) perianth, (2) androecium, (3) gynoecium
20) Select member of the Lamiales that does not show opposite leaves:

  1. Verbenaceae
  2. Scrophulariaceae
  3. Lamiaceae
  4. Polemoniaceae
  5. Boraginaceae
End of Practice Exam III (Set 2) - check your responses ('submit' - below) or return to BIOL 301.
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