Biol 212 – Protists, Plants, and Evolutionary Biology |
Complete Exam Questions with Correct Answers
This document contains Biol 212 exam questions and fully verified answers covering
protists, plant evolution, and major eukaryotic groups. It includes detailed material on body
plans, nutrition modes, reproduction, and the endosymbiotic theory, as well as adaptations
of land plants and alternation of generations. The questions span bryophytes, seedless
vascular plants, gymnosperms, and angiosperms, making it a complete study set for exam
preparation. Updated with accurate answers, this material is ideal for thorough review.
What is a protist in the most general sense? - answer✔✔Eukaryotic (nucleus
enclosed) cells have nuclei and other membrane- enclosed organelles such as
mitochondria and plastids. primarily aquatic eukaryotic organisms with diverse What
are the different body plans, modes of nutrition, habitats and reproductive lifestyles?
of protists - answer✔✔most body plans are unicellular, some form colonies, some
are coenocytic and some are multicellular algae are autotrophic photosynthesizers
heterotrophs absorb nutrients, or ingesting food mostly live in the ocean, or damp
terrestrial places usually reproduce asexually, some sexually as well. no sex organs
What are some key structures of a basic free living unicellular protist? -
answer✔✔flagella, cell wall, nucleus, chloroplast, starch granule What is the
endosymbiotic theory? - answer✔✔theory that eukaryotic organelles such as
mitochondria and chloroplasts from ancient free living prokaryotes invaded primitive
, - 2 -:
eukaryotic cells What are the modern tools being used to sort out the protist kingdom?
- answer✔✔-electron microscopy -molecular analysis of the gene for RNA What are
five major protist groups? - answer✔✔excavates chromalvaeolates Rhizarians:
Archaeplastids: Unikonts: What type of gene fusion exists in... Bacteria? Archaea?
Bikonts? - answer✔✔bikonts: second gene fusion What eukaryotic supergroups and
traditional kingdoms are included in this developing clade? - answer✔✔in protists
clades, there are eukaryote supergroup and representative protist clades excavates -
answer✔✔unicellular, deep oral groove, endosymbionts, anoxic (no oxygen water
areas), energy obtained by glycolysis. euglena Chromalevolates - answer✔✔-
diverse protists, few shared characteristics. -originated from emdosymbiosis where cell
engulfed by red alga -photosynthesis ex: algae, plankton Rhizarians -
answer✔✔monophyletic but diverse group of amoeboid cells. Hard outer shells,
forams, shell-less amoebas Archaeplastids - answer✔✔Monophyletic group that
includes red algae, green algae, and land plants, which are in a separate kingdom.
presence similar chloroplasts. unikonts - answer✔✔Supergroup that includes protists
that are closely related to fungi and animals. Triple gene fusion, single posterior
flagellum Apicomplexans - answer✔✔parasites of animals, and some cause serious
human diseases. malaria What eukaryotic supergroup do land plants belong to? Who
is thought to be their common ancestor? - answer✔✔archaeplastida, ancestor is the
ancient green alga What are the four major defining characteristics of terrestrial
plants? - answer✔✔cellulose cell walls, chlorophylls a and b in plastids, starch as
storage product, cells with two anterior flagella What are three adaptations plants