Exam 2: Cells

Identify the letter that indicates telophase.

A normal human body cell contains _____ chromosomes and a normal unfertilized human oocyte (egg) contains _____ chromosomes.

The contents in the innermost region of a mitochondrion is the _____.

Draw and label a portion of a plasma membrane showing the molecular components of the membrane. Explain why "fluid mosaic" is a good description of the plasma membrane structure.

Which letter identifies microvilli?

Describe a function of microtubules.

A neoplasm can result from uncontrolled cell division.

When charged, medium-sized molecules like glucose and amino acids move across a membrane from high to low concentration, the following process has occurred.

Which of the following is NOT characteristic of a cell's nucleus?

In which phase are chromosomes visible as 46 structures that are not aligned?

Water travels continuously between interstitial fluid and intracellular fluid via the process of _____.

Meiosis I begins with a _____ (diploid/haploid) starting cell and ends with two cells, each with the _____ (diploid/haploid) number of chromosomes. During meiosis II, each of the two _____ (diploid/haploid) cells formed during meiosis I divides; the net result is four _____ (diploid/haploid) gametes that are genetically different from the original _____ (diploid/haploid) starting cell.

Microtubules form the structure of microvilli.

Integral membrane proteins play important roles in certain transport mechanisms. What roles do they play in osmosis, facilitated diffusion, and active transport?

The only human cell that has a flagellum is the _____ cell.

What is the function of microfilaments?

The mitotic spindle consists of microtubules.

Which letter identifies the site of protein synthesis?

The letter A is pointing to the _____.

The process that results in the destruction of the "webbing" found between the digits of the hand and foot in early human fetal development is called