Exam 2: Cells

Microtubules form the structure of microvilli.

What is the function of microfilaments?

Identify the letter that indicates telophase.

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

List and define: A) three passive processes and B) three active processes that move substances across cell membranes. Give an example of a molecule that is moved by each process.

Proteins that will be exported from the cell are produced by

Which of the following contributes to aging?

Meiosis occurs in two stages and results in two daughter cells that are identical to the original cell.

Explain the difference between an oncogene and a proto-oncogene.

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

Which letter identifies the powerhouse of the cell?

Which letter identifies the organelle in the liver responsible for detoxification?

Lysosomes contain enzymes that digest the contents of phagocytic vesicles, pinocytic vesicles, and endosomes.

Higher and higher dosages of the drug are needed to achieve the original effect. This could result in an increased possibility of overdose and increased drug dependence." This described drug-tolerance is due to increasing amounts of cellular _____.

The letter C is pointing to the _____.

The transport process that moves oxygen from the air sacs in the lungs into surrounding blood vessels is called _____.

Describe the structure and function of a mitochondrion. What are the important components located within this organelle and where is each one located? What overall process occurs primarily in the mitochondrion?

What two processes must occur in order for a cell to divide to produce two new cells?

Which of the following events does not occur during prophase of mitosis?

Which of the following is not located in the nucleus?