Exam 3: Cells: the Living Units

The orderly sequence of the phases of mitosis is prophase, metaphase, anaphase, and telophase.

Apoptosis is programmed cell suicide; cancer cells do not undergo this process.

Figure 3.2Using Figure 3.2, match the following: -In order for the DNA molecule to get "short and fat" to become a chromosome, it must first wrap around small molecules called .

Microtubules are hollow tubes made of subunits of the protein tubulin.

Telomeres are the regions of chromosomes that code for the protein ubiquitin.

Mitochondria .

Which of the following is NOT a role of cell adhesion molecules:

Figure 3.1Using Figure 3.1, match the following: -Are Brownian motion, diffusion, and osmosis seen only in living tissue?

The process of discharging particles from inside a cell to the outside is called _ .

Nitric oxide is known to be the first gas to act as a biological messenger.

Figure 3.2Using Figure 3.2, match the following: -are hollow tubes made of spherical protein subunits called tubulins.

DNA transcription is another word for DNA replication.

What factors contribute to the fragility of the lysosome and subsequent cell autolysis?

Figure 3.1Using Figure 3.1, match the following: -Site of enzymatic breakdown of phagocytized material.

Figure 3.2Using Figure 3.2, match the following: -Why are free radicals so dangerous to cells, and how are they dealt with by the body?

Figure 3.2Using Figure 3.2, match the following: -What processes maintain a steady state "resting" membrane potential?

Most organelles are bounded by a membrane that is quite different in structure from the lipid bilayer of the plasma membrane.

A gene can best be defined as .

Concentration differences cause ionic imbalances that polarize the cell membrane, and active transport processes.

Figure 3.2Using Figure 3.2, match the following: -Integral protein.