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Exam 2: The Cell: Basic Unit of Structure and Function

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Question 31

Multiple Choice

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Catalase-containing peroxisomes are most abundant in ______ cells.

A) liver
B) kidney
C) pancreas
D) thymus
E) pituitary

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

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Question 32

True/False

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The amount of rough ER is greater in cells producing large amounts of protein for secretion.

A) True
B) False

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Question 33

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The fuzzy coat made of glycoproteins and glycolipids found on the external surface of the plasma membrane is called the _______________.

The uptake of cholesterol into cells is an example of

The condensed,"wound" nature of chromosomes during cell division prevents the DNA from directing the production of additional cellular proteins.

DNA is organized into discrete units called ____________ that provide information for the production of specific proteins.

Organelles that are always in direct contact with the cytosol are called nonmembrane-bound organelles.

Nuclear ____________ are open passageways that penetrate fused regions of the double membrane of the nuclear envelope.

The last part of interphase is called

In humans,the only cell that bears a flagellum is the ________ cell.

The two identical cells that arise from mitosis are called ____________ cells.

The phase of mitosis that begins as spindle fibers pull sister chromatids apart at the centromere is

The subunits of ribosomes are exported outside the nucleus into the cytoplasm,where they are assembled into their finished product.

Lysosome functions range from the digestion of materials ingested by the cell to the self-destruction of the cell.

_____________ is the division of the cytoplasm during cell division.

Which is a passive transport process?

Bulk filtration occurs as a result of

In _____________ transport,substances move across a plasma membrane without the expenditure of energy by the cell.

Mitochondria are responsible for the synthesis of most of the energy-rich ATP molecules used by human cells.

Which is an active transport process?