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Exam 3: The Cellular Level of Organization

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Question 51

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The extracellular fluid in most tissues is called the________ fluid

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Question 52

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A defense cell engulfing a bacterium illustrates

A) phagocytosis.
B) receptor- mediated endocytosis.
C) pinocytosis.
D) endocytosis.
E) exocytosis.

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

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Question 53

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The start of each gene begins with a ______ segment

Each of the following statements concerning mitochondria is true, except one. Identify the exception.

In ________one substance is transported into the cell, and another is transported out.

The proper distribution of a cell's genetic material to two daughter cells is accomplished by the process of _____________ .

Examination of a sample of glandular cells reveals an extensive network of smooth endoplasmic reticulum. Which of the following is the likeliest product of these cells?

Figure 3- 1 The Plasmalemma Use Figure 3- 1 to answer the following questions) : -Lipid molecules pass into the cell through the structure labeled

Figure 3- 2 The Anatomy of a Representative Cell Use Figure 3- 2 to answer the following questions) : -The structure labeled "1" permits the cell to

How would an inhibitor of the sodium- potassium exchange pump affect the resting potential?

Define osmosis.

Some cells contain large numbers of mitochondria while others have relatively few or none. This suggests that

Mitosis is to somatic cells as meiosis is to

During kidney dialysis, a person's blood is passed through a bath that contains several ions and molecules. The blood is separated from the dialysis fluid by a membrane that allows water, small ions, and small molecules to pass, but does not allow large proteins or blood cells to pass. What should the composition of dialysis fluid be for it to remove urea a small molecule) without changing the blood volume removing water from the blood)?

Figure 3- 1 The Plasmalemma Use Figure 3- 1 to answer the following questions) : -What part of the plasmalemma is hydrophobic?

The process of forming mRNA is called

During mitosis, chromatids separate into daughter chromosomes during

Assume that the transport of a particular amino acid across the plasmalemma is observed 1) to occur only down its concentration gradient and 2) to slow when a similar amino acid is added to the extracellular fluid. The movement of the amino acid through the membrane is most likely by

A cell duplicates its chromosomes during the______ phase.

All of the following membrane transport mechanisms are passive processes, except