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Which of the following help direct the movement of materials or organelles throughout the cell?


A) rough endoplasmic reticulum
B) cytoskeleton
C) smooth endoplasmic reticulum
D) All of the choices are true.

E) A) and D)
F) A) and C)

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Which is a true statement about ribosomes?


A) Ribosomes contain DNA and protein.
B) Ribosomes are active in carbohydrate synthesis.
C) Ribosomal subunits leave the nucleus after being formed by the nucleolus.
D) Polyribosomes are the subunits of ribosomes.
E) Ribosomes are only found associated with the endoplasmic reticulum in prokaryotic cells.

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

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C

During cellular movement which of the following filaments will be the ones that are responsible for attaching and pulling the other filaments along?


A) actin
B) myosin
C) trypsin
D) intermediate filaments

E) B) and D)
F) B) and C)

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Which of the following features are found in a bacterial cell? Select all that apply.


A) cell wall
B) nucleus
C) cell membrane
D) ribosomes
E) Golgi apparatus

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

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All of the following are true statements about eukaryotic cells except:


A) A true nucleus contains the chromosomes.
B) Eukaryotic cells contain membrane-bounded organelles.
C) Eukaryotic cells contain peptidoglycan in their cell walls.
D) Eukaryotic cells contain mitochondria.
E) Eukaryotic cells contain many organelles in the cytoplasm.

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

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All of the following are associated with the mitochondria except:


A) ATP production
B) cristae
C) stroma
D) matrix

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

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Which of the following gives rise to both lysosomes and vesicles?


A) rough endoplasmic reticulum
B) mitochondria
C) Golgi apparatus
D) ribosomes
E) centrioles

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

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Which of the following statements about bacterial anatomy are correct? Select all that apply. Which of the following are major functions of the plasma membrane? Select all that apply.


A) The cell wall is located outside of the plasma membrane.
B) Inside the cell there may be plasmids.
C) On the outside of the cell there may be fimbriae.
D) Inside the cell,the DNA is separated from the rest of the cell by a membrane.
E) The glycocalyx lies on the inside of the cell membrane.

F) C) and D)
G) A) and C)

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According to the endosymbiotic theory,mitochondria and chloroplasts evolved from aerobic and photosynthetic bacteria that were engulfed and "took up" residence in a host prokaryotic cell.Use your knowledge of how plant and animal cells differ to answer the following questions: A.Did the ancestral plant cell engulf both types of bacteria? Cite evidence to justify your answer. B.Did the ancestral animal cell engulf both types of bacteria? Cite evidence to justify your answer. C.If the answer to either A or B is yes,then which type of bacteria would have been engulfed first? Cite evidence to justify your answer.

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A.Yes,the ancestral plant cell engulfed ...

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All cells have these two characteristics:


A) contain DNA in the nucleus and have a plasma membrane
B) produce a cell wall outside of the plasma membrane
C) contain mitochondria and chloroplasts
D) have a plasma membrane and ribosomes in the cytoplasm

E) A) and D)
F) A) and C)

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If a researcher was interested in slowing down the movement of amoebas by disrupting their cell membranes,which protein filaments should she be studying?


A) actin
B) intermediates
C) microtubules
D) myosin

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

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________ are to ribosomes as lipids are to ________.


A) Carbohydrates; rough endoplasmic reticulum
B) Nucleoli; lysosomes
C) Sugars; peroxisomes
D) Proteins; smooth endoplasmic reticulum

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

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What organelle would be found in increased quantities in the liver cells of a person who abuses alcohol and / or other drugs on a regular basis?

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The smooth endoplasmic reticul...

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According to the endosymbiosis theory ________ were engulfed by larger eukaryotic cells.


A) mitochondria
B) Golgi apparatus
C) lysosomes
D) ribosomes

E) A) and D)
F) A) and C)

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What structures enable the vesicles from the Golgi apparatus to fuse with the cell membrane?


A) membrane-associated proteins
B) phospholipids
C) cholesterol molecules within the cell membrane
D) secretory vesicles that engulf the Golgi apparatus will allow the vesicles to fuse

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

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Which cellular organelle is the most prominent?


A) nucleus
B) nucleolus
C) lysosome
D) mitochondria

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

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A

Each time the water in a cell freezes slowly,long sharp crystals spear through the membrane structures of the cell.However,in the frozen state,virtually no chemical reactions occur.The most likely explanation for the bad taste of meat that has "freezer burn" from repeated freezing is the destruction of


A) the Golgi bodies and their vesicles.
B) lysosomes,which results in the cell digesting itself.
C) rough endoplasmic reticulum causing the release of ribosomes.
D) ribosomes causing them to break into subunits.
E) the nuclear membrane causing mixing of nucleoplasm and cytoplasm.

F) B) and C)
G) C) and D)

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All cells have a cell wall that regulates the passage of molecules into and out of the cell.

A) True
B) False

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Most bacteria live in a solution that is hypotonic relative to the cytoplasm of the bacteria.This means that the bacterial cell is constantly taking in water.The cell wall of a bacterium is a peptidoglycan polymer that is tightly cross-linked.This would therefore function to


A) regulate the flow of most molecules into and out of the bacterial cell.
B) provide a rigid wall that prevents the cell from swelling.
C) provide a rigid wall that prevents the cell from shrinking.
D) confirm a close relationship to plant cells that have a similar structure and live in hypotonic solutions.
E) make all bacteria fairly uniform in metabolic chemistry.

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

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B

Mitochondria are thought to be derived from aerobic bacteria that became part of the eukaryotic cell through endosymbiosis.

A) True
B) False

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