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Exam 2: The Celt Basic Unit of Structure and Function

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Question 31

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Which of the following shows the correct sequence of mitosis?

A) Prophase - metaphase - anaphase - telophase
B) Metaphase - prophase - anaphase - telophase
C) Telophase - metaphase - prophase - anaphase
D) Metaphase - telophase - anaphase - prophase
E) Prophase - anaphase - metaphase - telophase

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

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Question 32

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Human body cells have many functions,including

A) making connections.
B) providing for defense.
C) lining surfaces.
D) producing new cells.
E) All of the choices are correct.

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

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Question 33

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Another name for the intracellular fluid is

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

The process of "programmed cell death" is called

Materials tend to move less rapidly when their concentrations are significantly different between two compartments.

During its mitotic phase a cell is

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

_____________ is the division of the cytoplasm during cell division.

_____________ are short,membrane-attached projections containing microtubules that occur in large numbers on exposed membrane surfaces.

Often,a cell's functions are reflected in either its size or shape.

_______________ transport is required to move a substance across a membrane against a concentration gradient.

Metaplasia is the abnormal transformation of a fully differentiated adult tissue into a differentiated tissue of another kind.

The microscope of choice for a detailed three-dimensional study of the surface of a specimen is the

Which of these is considered a "gatekeeper" that regulates the passage of materials in or out of the cell?

The uptake of cholesterol into cells is an example of

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

Which of the following serve to increase the surface area of a cell for absorption and/or secretion?

The production of sperm and oocytes is achieved through a cell division process called _____________.

Functions of human body cells include