BIO 148 Eukaryotic Cells Practice Questions

Which of the following describes the structure of DNA in photosynthetic eukaryotes? Linear in mitochondria and chloroplasts, circular in nuclei Circular linear Circular in mitochondria and chloroplasts, linear in nuclei

Circular in mitochondria and chloroplasts, linear in nuclei

Which of the following describes a major difference between eukaryotes and prokaryotes? Eukaryotic cells have a membrane-bound nucleus; prokaryotic cells do not. Prokaryotes include bacteria and protists; eukaryotes include all other organisms All eukaryotes are multicellular; all prokaryotes are unicellular. Prokaryotic cells are larger than eukaryotic cells.

Eukaryotic cells have a membrane-bound nucleus; prokaryotic cells do not.

Which feature is shared by Archaea and Bacteria but not found in any member of Eukarya? lack of a nucleus and unicellularity Peptidoglycan cell walls lack of a nucleus and peptidoglycan cell walls Lack of a nucleus Unicellularity all of the answers are correct

Lack of a nucleus

A synapomorphy that defines the domain Eukarya is multicellularity The presence of a cell wall The presence of a cell membrane The presence of a nuclear membrane the presence of a cell membrane and the presence of a nuclear membrane

The presence of a nuclear membrane

Which of the following features are not found strictly in the eukaryotes? Multicellularity Sexual reproduction Nuclear envelope Ribosomes

Ribosomes

Which of the following supports the infolding theory to explain the origin of the nuclear envelope? Ribosomes are found within the nuclear envelope The nuclear envelope is a double membrane DNA inside the nuclear envelope is linear The nuclear envelope resembles a prokaryotic cell wall

The nuclear envelope is a double membrane

Which of the following pieces of evidence would support the endosymbiotic theory? Mitochondria reproduce by fission (like bacteria) Mitochondria have their own circular genomes all of these would support the endosymbiotic theory Mitochondria have double membranes Mitochondria have their own ribosomes that are similar in structure to those of bacteria

all of these would support the endosymbiotic theory

In the diagram, which letter corresponds to an ancestor with a nucleus? c a, b, and c b a b and c

c

Cyanide (a poison) binds with proteins involved in producing ATP. If a eukaryotic cell is exposed to cyanide, most of the cyanide will be found within the endoplasmic reticulum chloroplasts mitochondria ribosomes

mitochondria

Green algae are photosynthetic eukaryotes. They contain ____. mitochondria, chloroplasts, and a nucleus nucleus and chloroplasts nucleus and mitochondria mitochondria and chloroplasts

mitochondria, chloroplasts, and a nucleus

According to the theory of endosymbiosis, the outer mitochondrial membrane is derived from: infoldings of the inner mitochondrial membrane the plasma membrane of the engulfed bacteria the endoplasmic reticulum the cell wall the plasma membrane of an ancient eukaryote ancestor

the plasma membrane of an ancient eukaryote ancestor