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Bio 446 Exam 2 Questions and 100% Correct Answers
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Herb, fleshy leaves, 2 sepals, 5 petals, free-central placentation montiaceae Basal rosette of leaves with palmate venation; 2 partially fused carpels saxifragaceae Fleshy green stems, flowers with many tepals and stamens, inferior ovary cactaceae Shrub with tough, leathery leaves, urn shaped fl...

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  • August 18, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bio 446 exam 2 questions and 100 correct answers
  • herb fleshy leaves 2 sepals 5 petals free cent
  • basal rosette of leaves with palmate venation 2 p

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Bio 446 Exam 2 Questions and 100%
Correct Answers
Herb, fleshy leaves, 2 sepals, 5 petals, free-central placentation ✅montiaceae

Basal rosette of leaves with palmate venation; 2 partially fused carpels
✅saxifragaceae

Fleshy green stems, flowers with many tepals and stamens, inferior ovary ✅cactaceae

Shrub with tough, leathery leaves, urn shaped flowers, berries ✅ericaceae

Herbs with alkaloids, pinnately compound leaves with entire margins, flowers bilateral
and with simple pistils ✅fabaceae

Basal rosette of simple heart shaped leaves; 5 parted flowers, bilateral symmetry; two
lower stamens form nectary ✅violaceae

Herb; 4-parted flowers, versatile stamens with pollen in tetrads ✅onagraceae

Herb; radial, gamopetalous flowers with corona; Scorpio I'd cyme ✅boraginaceae

Opposite leaves, swollen nodes; petals consist of claw and blade ✅caryophyllaceae

Tree; simple leaves with stipules; 5 infused petals, many stamens, simple pistil, fruit a
drupe ✅rosaceae

Herb; polypetalous, 4-parted, with two stamen whorls of uneven length; superior ovary
and long slender fruit ✅brassicaceae

Herb; flower gamopetalous, 5 sepals, petals, and stamens; 3 fused carpels
✅polemoniaceae

Tree; opposite leaves; flowers with nectary disk; fruit a Samar lid schizocarp
✅aceraceae

In which of the following "fruits" of the rosacea is the sweet juicy part actually part of the
fruit?
A) strawberry
B) cherry
C) apple

, D) pear
E) none ✅b) cherry (drupe)

Capsicum annum (chili pepper), a member of the solanaceae, contains chemical
compounds that make Mexican food spicy. These compounds are: ✅capsaicin (an
alkaloid)

A white flower with a strong scent and opening at dusk is likely pollinated by ✅moths

Which of the following is not typical of plants in the residue sensu lato?
A) flowers polypetalous
B) two integuments surrounding the ovule
C) périanthe parts arranged in whorls
4) betalain pigments

5) seeds with two cotyledons ✅4) betalain pigments

What traits are typical of plants in the order caryophyllales? ✅free central to basal
placentation, betalains, perisperm nutritive tissue in seeds, embryo curved in seed,p-
type plastid (unique sieve tube), single whorl of tepals,halo and xerophytes

Versatile anthers means that ✅they are attached to the filament by a thin connective
tissue

In the fabaceae, where did flag, brush, fused keel, and diadelphous stamens arise?
✅flag flowers arose prior to caesalpinoideae, brush flowers arose prior to
mimosoideae but on a separate branch from papilionoideae, fused keel and
diadelphous stamens arose in sequence on the papilionoideae branch

What is the primary function of secondary compounds in plants? ✅to prevent herbivory

Chemical compounds found in brassicaceae ✅glucosinolates (mustard oil)

Chemical compounds found in ericaceae ✅iridoids

Chemical compounds found in solanaceae ✅alkaloids (capsaicin, nicotine, etc)

Chemical compounds found in fabaceae ✅alkaloids

Name three synapomorphies of asteridae ✅iridoid compounds, unitegmic ovules
(reduction from two to one integuments surrounding ovule), teninucellate ovules (thin
nucellus in ovule)

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