TAMU BIOLOGY 112 EXAMS SET 2025/2026 QUESTIONS
WITH ANSWERS RATED A+
✔✔in the subgroup ______________, All have membrane-enclosed sac beneath the
cell membrane called an _________ - ✔✔alveolates; alveolus
✔✔This group has:
-unicellular aquatic heterotrophs or phytoplankton w/ reddish accessory pigments
-pair of flagella in perpendicular grooves
-many have internal cellulose plates
-some are bioluminescent - ✔✔Dinoflagellates
Subgroup: Alveolates
Supergroup: SAR clade
✔✔"blooms" of some species in this group kill fish or create toxic "red tides" -
✔✔Dinoflagellates
Subgroup: Alveolates
Supergroup: SAR clade
✔✔This group is:
-unicellular parasites of animals; no cell wall
-*apical complex* helps them enter host cells
-complex life cycles:
--requires more than one host
--multiple "forms" - ✔✔Apicomplexans
Subgroup: Alveolates
Supergroup: SAR clade
✔✔Ex: Plasmodium
-causes malaria, carried by mosquitos - ✔✔Apicomplexans
Subgroup: Alveolates
Supergroup: SAR clade
✔✔This group is:
-unicellular ingestive heterotrophs w/ no cell
wall; aquatic
-cilia for feeding & locomotion
-animal like in function
-most reproduction is asexual division - ✔✔ciliates
, subgroup: alveolates
supergroup: SAR clade
✔✔Ex. paramecium - ✔✔ciliates
subgroup: alveolates
supergroup: SAR clade
✔✔In ciliates, -both macronucleus (polyploid; controls _______ _______) &
micronucleus (used only for_________ _________) divide
-conjugation trades haploid micronuclei
-new genetic combination replaces old
macronucleus - ✔✔cell functions; genetic recombination
✔✔the subgroup Rhizarians include - ✔✔-Radiolarians
-foraminiferans (Forams)
✔✔This group is:
-unicellular marine plankton
-feed w/ threadlike pseudopodia
-symmetric silica "skeletons" - ✔✔Radiolarians
Subgroup: Rhizarians
Supergroup: SAR clade
✔✔This group is:
-unicellular, mostly marine plankton
-feed w/ threadlike pseudopodia
-porous shells (tests) of *calcium carbonate*
-some: size visible to eye
-important fossils for relative dating - ✔✔Foraminiferans (Forams)
Subgroup: Rhizarians
Supergroup: SAR clade
✔✔2 groups in Archaeplastida - ✔✔-Red Algae
-chlorophytes
✔✔This supergroup:
-chloroplasts from primary endosymbiotic event
-with cell walls, all include cellulose - ✔✔Archaeplastida
✔✔This group is:
-mostly marine, multicellular seaweeds
-chloroplasts include unique red *phycoerythrin* accessory pigment
WITH ANSWERS RATED A+
✔✔in the subgroup ______________, All have membrane-enclosed sac beneath the
cell membrane called an _________ - ✔✔alveolates; alveolus
✔✔This group has:
-unicellular aquatic heterotrophs or phytoplankton w/ reddish accessory pigments
-pair of flagella in perpendicular grooves
-many have internal cellulose plates
-some are bioluminescent - ✔✔Dinoflagellates
Subgroup: Alveolates
Supergroup: SAR clade
✔✔"blooms" of some species in this group kill fish or create toxic "red tides" -
✔✔Dinoflagellates
Subgroup: Alveolates
Supergroup: SAR clade
✔✔This group is:
-unicellular parasites of animals; no cell wall
-*apical complex* helps them enter host cells
-complex life cycles:
--requires more than one host
--multiple "forms" - ✔✔Apicomplexans
Subgroup: Alveolates
Supergroup: SAR clade
✔✔Ex: Plasmodium
-causes malaria, carried by mosquitos - ✔✔Apicomplexans
Subgroup: Alveolates
Supergroup: SAR clade
✔✔This group is:
-unicellular ingestive heterotrophs w/ no cell
wall; aquatic
-cilia for feeding & locomotion
-animal like in function
-most reproduction is asexual division - ✔✔ciliates
, subgroup: alveolates
supergroup: SAR clade
✔✔Ex. paramecium - ✔✔ciliates
subgroup: alveolates
supergroup: SAR clade
✔✔In ciliates, -both macronucleus (polyploid; controls _______ _______) &
micronucleus (used only for_________ _________) divide
-conjugation trades haploid micronuclei
-new genetic combination replaces old
macronucleus - ✔✔cell functions; genetic recombination
✔✔the subgroup Rhizarians include - ✔✔-Radiolarians
-foraminiferans (Forams)
✔✔This group is:
-unicellular marine plankton
-feed w/ threadlike pseudopodia
-symmetric silica "skeletons" - ✔✔Radiolarians
Subgroup: Rhizarians
Supergroup: SAR clade
✔✔This group is:
-unicellular, mostly marine plankton
-feed w/ threadlike pseudopodia
-porous shells (tests) of *calcium carbonate*
-some: size visible to eye
-important fossils for relative dating - ✔✔Foraminiferans (Forams)
Subgroup: Rhizarians
Supergroup: SAR clade
✔✔2 groups in Archaeplastida - ✔✔-Red Algae
-chlorophytes
✔✔This supergroup:
-chloroplasts from primary endosymbiotic event
-with cell walls, all include cellulose - ✔✔Archaeplastida
✔✔This group is:
-mostly marine, multicellular seaweeds
-chloroplasts include unique red *phycoerythrin* accessory pigment
