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The series of tunnel-like membranes functioning in transport and storage are the ______.


A) chloroplasts
B) Golgi apparatus
C) endoplasmic reticulum
D) mitochondria
E) lysosomes

F) A) and B)
G) B) and E)

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The endosymbiotic theory has been developed to explain the emergence of ______.


A) eukaryotes
B) prokaryotes
C) viruses
D) bacteria
E) archaea

F) A) and C)
G) B) and C)

Correct Answer

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The eukaryotic cell organelle that most resembles a bacterial cell is the ______.


A) lysosome
B) Golgi apparatus
C) ribosome
D) nucleus
E) mitochondrion

F) B) and D)
G) None of the above

Correct Answer

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Choose the correct order of the three main types of cytoskeletal elements in increasing order of size.


A) Actin filaments, intermediate filaments, flagella
B) Actin filaments, intermediate filaments, microtubules
C) Microtubules, flagella, cilia
D) Microtubules, intermediate filaments, actin filaments
E) Microtubules, cilia, flagella

F) None of the above
G) A) and E)

Correct Answer

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A group of protozoa that are not motile are the ______.


A) Plasmodium sp.
B) ciliates
C) amoebas
D) dimorphics
E) trophozoites

F) A) and B)
G) A) and D)

Correct Answer

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When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible, thread-like mass called ______.


A) nucleoplasm
B) the nuclear envelope
C) chromatin
D) the nucleolus
E) the nucleosome

F) A) and B)
G) B) and D)

Correct Answer

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Which of the following organisms has a cell wall?


A) Candida albicans
B) Entamoeba histolytica
C) Enterobius vermicularis
D) Trypanosoma cruzi

E) B) and C)
F) A) and B)

Correct Answer

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The site for ribosomal RNA synthesis is the ______.


A) Golgi apparatus
B) nucleus
C) ribosome
D) lysosome
E) nucleolus

F) B) and E)
G) B) and C)

Correct Answer

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Which is not a characteristic of fungi?


A) Heterotrophic nutrition
B) Photosynthetic
C) Include single-cell and filamentous forms
D) Presence of cell walls

E) A) and C)
F) B) and C)

Correct Answer

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As part of their reproductive cycle, helminths produce egg and sperm cells.Both of these eukaryotic cell types have an outer surface composed of polysaccharides known as the ______.


A) cell wall
B) microtubule
C) cell membrane
D) cyst
E) glycocalyx

F) All of the above
G) C) and D)

Correct Answer

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The cell membranes of bacteria and eukaryotes are quite similar, differing only in


A) the presence of phospholipids.
B) being selectively permeable.
C) the ability to transport wastes out of the cell.
D) the presence of sterols.
E) the presence of proteins in the bilayer.

F) D) and E)
G) B) and E)

Correct Answer

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