2Directions Work in a group of 3-4 students We will go group by group to answer a question.If a group cannot answer a question correctly, the first group to raise their hand and is called on may answer the question.There is no penalty for guessing.Team with the most points at the end wins!I may deduct points for disruptive behavior …
4Which of the following explains why a cell's size is limited. a Which of the following explains why a cell's size is limited? a. Volume increases faster than surface area. b. Surface area increases faster than volume. c. Homeostasis is disrupted by a cell that is too large. d. Both a and cD
5Why is the synthesis stage called this? Because DNA is being replicated
6Which of the graphs in Figure 9-3 shows the correct changes in the amount of DNA in a cell as it moves through one cell cycle?BAACDC
7The typical growth period of a cell occurs during which stage of the cell cycle?
8growth : G1 :: a. mitosis : meiosis b. cytokinesis : M c. mitochondria replication : Sd. DNA copying : S
9A typical human cell contains 46 chromosomes A typical human cell contains 46 chromosomes. After mitosis and cell division, each of the two new cells formed from the original cella. gets 23 chromosomes.b. grows new chromosomes from existing DNA.c. gets a complete set of 46 chromosomes.d. None of the above
10The longest phase of the cell cycle is … Interphase
11Mitosis is a process by which the … Nucleus divides
12What is the product of cell division? Two new cells – identical genetic material
13Which of the following shows the correct sequence of the cell cycle? a. C M G1 S G2c. G1 S G2 M Cb. S G1 G2 M Cd. None of the above
14List the phases of mitosis in proper order Prophase, metaphase, anaphase, telophase
15Figure 5 shows which phase of mitosis? Telophase
16Figure 3 shows which phase of mitosis? Metaphase
18This is a picture of which phase of mitosis? Prophase
19By the end of prophase, each of the following has occurred except tighter coiling of the chromosomesbreaking down of the nuclear envelopedisappearing of the nucleoluslining up of chromosomes in the cell
20What is the role of the spindle in mitosis? It helps separates the chromosomes
21How is the alignment of chromosomes, shown in Figure 9-4, on the equatorial plate of the cell maintained?They are always located there, since that is where the nucleus was.Tension between opposite spindle fibers pulls them there.The pressure of the cytoplasm moves them there.The chromosomes are attracted to each other and meet there.
22A stem cell has potential medical uses because … It is not specialized in structure or function
23Which of the cells depicted in the line graph in Figure 9-2 are most likely cancerous?
24If cancer is present, what is the likely explanation for what happened to the cells depicted in the curves labeled B and D in Figure 9-2?a. They thrived with the cancerous cells.b. They were harmed by radiation therapy.c. They died off due to natural causes.d. They died off because the cancerous cells deprived them of nutrients.