* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Name: Pd.: ____ Chapter 10. Cell Growth and Division Section 10.1
Survey
Document related concepts
Tissue engineering wikipedia , lookup
Cell nucleus wikipedia , lookup
Signal transduction wikipedia , lookup
Cell membrane wikipedia , lookup
Cell encapsulation wikipedia , lookup
Endomembrane system wikipedia , lookup
Extracellular matrix wikipedia , lookup
Cell culture wikipedia , lookup
Programmed cell death wikipedia , lookup
Biochemical switches in the cell cycle wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Cellular differentiation wikipedia , lookup
Cell growth wikipedia , lookup
Cytokinesis wikipedia , lookup
Transcript
Name: _____________________ Pd.: ____ Chapter 10. Cell Growth and Division Section 10.1 Cell Growth, Division, and Reproduction (p. 274-278) 1. Identify two reasons why a cell’s growth is limited. a. ______________________________________________________ b. ______________________________________________________ 2. As a cell’s size increases, what happens to the ratio of its surface area to its volume? __________________________________________________________ 3. Why is a cell’s surface area-volume ratio important? __________________________________________________________ 4. What is asexual reproduction? __________________________________________________________ 5. What is sexual reproduction? __________________________________________________________ 6. What types of organisms reproduce sexually? __________________________________________________________ 7. What is one advantage AND one disadvantage of asexual reproduction? a. ______________________________________________________ b. ______________________________________________________ 8. What is one advantage AND one disadvantage of sexual reproduction? a. ______________________________________________________ b. ______________________________________________________ 9. In a changing environment, which organisms have an advantage, those that reproduce asexually or those that reproduce sexually? Explain your answer. __________________________________________________________ __________________________________________________________ 10. The formula for finding the surface area of a sphere, such as a baseball or basketball, is A=4πr2. where r is the radius. The formula for finding the volume of a sphere is V=4/3πr3 a. Calculate the surface area and the volume of a basketball that has a radius of 12.2 cm and a baseball that has a radius of 3.6 cm. Then, write the ratio of surface to volume for each sphere. SHOW YOUR WORK!!!! b. If the baseball and basketball were cells, which would possess a larger ratio of area of cell membrane to cell volume? __________________________________________________________ 1 Name: _____________________ Pd.: ____ Section 10.2 The Process of Cell Division (p. 279-284) 1. What are chromosomes? __________________________________________________________ 2. How does the structure of chromosomes differ in prokaryotes and eukaryotes? __________________________________________________________ __________________________________________________________ 3. What is the cell cycle? __________________________________________________________ 4. During which phase of the cell cycle are the chromosomes replicated? __________________________________________________________ 5. During which phase(s) of the cell cycle would you expect the amount of DNA in the cell to change? __________________________________________________________ 6. What is the relationship between interphase and cell division? __________________________________________________________ __________________________________________________________ 7. What happens during each of the four phases of mitosis, using one or two phrases to describe each phase? a. ______________________________________________________ b. ______________________________________________________ c. ______________________________________________________ d. ______________________________________________________ 8. What do you think would happen if the spindle fibers were disrupted during metaphase? __________________________________________________________ 9. What is cytokinesis AND when does it occur? __________________________________________________________ __________________________________________________________ 10.How does cytokinesis differ in animal and plant cells? __________________________________________________________ 2 Name: _____________________ Pd.: ____ Section 10.3 Regulating the Cell Cycle (p. 286-290) 1. Describe the role of cyclins. ________________________________________________________ 2. Describe the role of “internal regulator” proteins in mitosis. ________________________________________________________ ________________________________________________________ 3. Describe the role of “external regulator” proteins in mitosis. ________________________________________________________ ________________________________________________________ 4. List two times when Growth Factors are especially important. a. b. _________________________________________________ _________________________________________________ 5. Define apoptosis. ________________________________________________________ 6. Why is cancer considered a disease of the cell cycle? __________________________________________________________ 7. How are the growth of a tumor and the repair of a scrape on your knee similar? __________________________________________________________ a. How are they different? __________________________________________________________ Section 10.4 Cell Differentiation (p. 292-297) 1. What happens during differentiation? __________________________________________________________ __________________________________________________________ 2. What does “mapping” refer to in the process of cell differentiation? __________________________________________________________ 3. What are stem cells? __________________________________________________________ 4. How are embryonic stem cells and adult stem cells alike? __________________________________________________________ a. How are they different? __________________________________________________________ 5. Give one potential benefit AND one potential issue of stem cell research. a. ______________________________________________________ b. ______________________________________________________ 3 Name: _____________________ Pd.: ____ Section 11.4 Meiosis (p. 323-329) 1. Describe the process of meiosis. __________________________________________________________ __________________________________________________________ 2. Describe the main results of meiosis. __________________________________________________________ 3. Suppose that an organism has the diploid number 2N=8. How many chromosomes do this organism’s gametes contain? __________________________________________________________ 4. In human cells, 2N=46. How many chromosomes would you expect to find in a sperm cell? __________________________________________________________ a. How many would you expect to find in an egg cell? __________________________________________________________ 5. Write a summary of each phase of meiosis. a. ______________________________________________________ b. ______________________________________________________ c. ______________________________________________________ d. ______________________________________________________ e. ______________________________________________________ f. ______________________________________________________ g. ______________________________________________________ h. ______________________________________________________ i. ______________________________________________________ 6. How does the principle of independent assortment apply to chromosomes? __________________________________________________________ __________________________________________________________ 7. If two genes are on the same chromosome but usually assort independently, what does that tell you about how close together they are? __________________________________________________________ 8. Compare the phases of meiosis I with the phases of meiosis II in terms of number and arrangement of the chromosomes. __________________________________________________________ __________________________________________________________ __________________________________________________________ 4