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The cell is the basic structural/functional unit common to all living organisms.

A) True
B) False

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When a friend falls to the floor after drinking too much alcohol the organelle that will best help them to detoxify will be


A) lysosomes.
B) smooth endoplasmic reticulum.
C) mitochondrion.
D) Golgi apparatus.
E) peroxisomes.

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

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Which statement comparing hemidesmosomes with desmosomes is TRUE?


A) Hemidesmosomes are found in plant cells while desmosomes are found in animal cells.
B) Hemidesmosomes interact with actin filaments while desmosomes interact with intermediate filaments.
C) Hemidesmosomes are anchorage junctions but desmosomes are not.
D) Hemidesmosomes anchor cells to the ECM while desmosomes anchor cells to other cells.
E) Both hemidesmosomes and desmosomes associate with integrin,but not cadherin molecules.

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

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Cyanide binds and impairs one of the molecules involved in the oxidative phosphorylation of ATP.The target organelle for cyanide must be


A) peroxisomes.
B) lysosomes.
C) ribosomes.
D) the endoplasmic reticulum.
E) mitochondria.

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

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E

Glycosaminoglycans and proteoglycans resist compression and are found in large abundance in joints of the body.

A) True
B) False

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To make the skin more flexible and remove wrinkles ______ could be injected beneath a person's skin.


A) proteoglycan
B) collagen
C) fibronectin
D) cellulose
E) laminin

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

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B

The flagellum is composed of a 9 + 2 arrangement of microtubules called the axoneme.

A) True
B) False

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In animal cells,microtubules grow from


A) the plasma membrane.
B) the outer membrane of the nuclear envelope.
C) centrosomes containing centrioles.
D) dimerization centers located throughout the cytosol.
E) the tips of the chromosomes.

F) D) and E)
G) A) and E)

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______ collagen is the most rigid and is very abundant in bones and tendons.


A) Type IV
B) Type V
C) Type I
D) Type III
E) Type II

F) C) and D)
G) D) and E)

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Large numbers of ribosomes are present in eukaryotic cells that produce


A) steroids.
B) lipids.
C) glucose.
D) starches.
E) proteins.

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

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E

Colorless plastids that store starch are ______and found in ______.


A) thyloplasts,amimals and plants
B) chloroplasts,plants
C) chromoplasts,bacteria and animals
D) amyloplasts,plants
E) fibroblasts,animals

F) All of the above
G) B) and E)

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The structure that easily distinguishes a plant or animal cell from a bacteria is its


A) chloroplasts.
B) nucleoid.
C) cell wall.
D) Golgi apparatus.
E) mitochondria.

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

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Collagen _____


A) must be secreted from a cell.
B) functions inside a cell.
C) forms junctions between cells.
D) acts as an enzyme.
E) is part of a cell wall.

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

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A patient has reduced cellular synthesis complications including low amounts of cell membrane production and no synthesis of estrogen or testosterone.Identify the organelle-symptom pair that is defective.


A) Membrane symptoms will be associated with the Golgi and the estrogen and testosterone will be a problem with the rough ER.
B) Rough ER is responsible for the membrane symptom and the smooth ER for the estrogen and testosterone.
C) Smooth ER produces lipids for the cell membrane and the Golgi produces estrogen and testosterone.
D) Peroxisomes make membranes and rough ER produces estrogen and testosterone.

E) A) and C)
F) All of the above

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You design a drug that transforms skin cells into cells that secrete insulin.Which cellular aspect is the drug most likely to affect?


A) Phenotypic traits.
B) Epigenetics.
C) The proteome.
D) Transcriptional factors.

E) All of the above
F) A) and B)

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The organelle that best enables an athlete's tissues to be metabolically active are


A) ribosomes.
B) lysosomes.
C) smooth endoplasmic reticulum.
D) mitochondria.
E) contractile vacuoles.

F) A) and E)
G) D) and E)

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The genome has more influence on the function of cells in different organs than does the proteome.

A) True
B) False

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If a plant cell is stripped of its cell wall it forms a protoplast.A protoplast would


A) contain cellulose.
B) be less rigid than a plant cell.
C) be stronger than a plant cell.
D) be able to form middle lamellae with other protoplasts.

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

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The route that most accurately describes secretory protein movement through the endomembrane would be


A) Golgi apparatus \rarr lysosome \rarr vesicles \rarr plasma membrane
B) plasmid \rarr plasma membrane \rarr nuclear envelope \rarr smooth endoplasmic reticulum
C) nuclear envelope \rarr vesicles \rarr Golgi apparatus \rarr plasma membrane
D) rough endoplasmic reticulum \rarr lysosomes \rarr vesicles \rarr cell membrane
E) rough endoplasmic reticulum \rarr Golgi apparatus \rarr vesicles \rarr plasma membrane

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

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The organelle responsible for the biosynthesis of proteins that are destined for secretion by the cell is the


A) Golgi apparatus.
B) lysosome.
C) vesicle.
D) endoplasmic reticulum.
E) mitochondria.

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

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