Bio 115 Exam 4(questions with answers)
already passed
Based on the theory of endosymbiosis, would you predict that the DNA sequence of a gene in the
chloroplasts of green algae would most similar to the sequence of gene in... - correct answer
✔✔Cyanobacteria
What is the difference between a sporophyte and gametophyte? - correct answer ✔✔Sporophytes are
diploid and generate spores, gametophytes are haploid and generate gametes
Is photosynthesis homologous or convergent in protists?
Homologous - all chloroplasts in protist can be traced back to a single instance of endosymbiosis of a
cyanobacterium
Convergent - different lineages of protists acquired the ability to photosynthesize independently
Convergent - algae form a paraphyletic group within protists
A and B - correct answer ✔✔A and B
Which of the following is NOT evidence supporting the theory of endosymbiosis?
Mitochondria have a single, circular chromosome as their DNA molecule
Mitochondria have their own nucleus
Mitochondria do not have nuclei, in part because the free-living, prokaryotic bacteria they evolved from
do not have nuclei
, Mitochondrial DNA is genetically similar to bacterial DNA
Ribosomes of mitochondria are structurally similar to bacterial ribosomes - correct answer
✔✔Mitochondria do not have nuclei, in part because the free-living, prokaryotic bacteria they evolved
from do not have nuclei
Which of the following is the broadest taxonomic group (i.e. which answer includes the other answers as
subgroups)?
Archaeplastida
Embryophyta
Streptophytes
Viridiplantae - correct answer ✔✔Archaeplastida
What feature or features of land plants were made possible by the evolution of delayed meiosis?
Sporophytes
Stems
Archegonia
A and B - correct answer ✔✔A and B
What challenges did early land plants face during the transition from water to land? - correct answer
✔✔Drying out
Structural Support
Transport of gametes
Dispersal
What is the cuticle? - correct answer ✔✔Waxy layer that prevents water loss from stems and leaves
What is the stomata? - correct answer ✔✔tiny pores in leaves where carbon dioxide enters and oxygen
exits
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