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Name Class Date 10.1 Cell Growth, Division, and Reproduction Lesson Objectives Explain the problems that growth causes for cells. Compare asexual and sexual reproduction. BUILD Vocabulary A. The chart below shows key terms from the lesson with their definitions. Complete the chart by writing a strategy to help you remember the meaning of each term. One has been done for you. How I’m Going to Remember the Meaning Term Definition Asexual reproduction A cell divides into two new daughter cells Cell division Reproduction involving only one parent organism Sexual reproduction Reproduction in which cells from two different parents join to form a new organism Division, divides, and daughter all begin with D. A cell divides into daughter cells. B. As you work through this lesson, you may find these terms in the activities. When you write a key term or a definition, highlight the term or the definition. BUILD Connections Growing Pains An analogy takes two things that seem to be different and shows how they can be similar. 1. How does the analogy of a cell to a town help you understand why cells divide? 2. Find a partner. Using the analogy, explain to your partner why cells are small. 140 Name Class Date BUILD Understanding T-Chart A T-chart is a way to organize information. One way to make a T-chart is to write the textbook headings in the left column of the chart. Rewrite these headings as questions in the right column. Then, as you read, answer the question in your own words. As you read the lesson, complete the T-chart. Headings Questions and Answers Limits to Cell Size Why are cells limited in size? Why are cell division and reproduction important? Cell Growth and Reproduction BUILD Understanding Venn Diagram A Venn diagram is made up of overlapping circles. It is a useful tool for comparing two or even three topics. In each circle, write one of the topics that you want to compare. In the space where the circles overlap, write the features that the topics share. In the space where the circles do not overlap, write the features that are unique to each topic. Complete the Venn diagram below to compare asexual and sexual reproduction. 141 Name Class Date Limits to Cell Size Ratio of Surface Area to Volume 1. Draw a line from the edge of Circle A to the dot in the center of Circle A. Do the same with Circle B. Which line looks longer? 2. Look at the triangles in each circle. Suppose they have to move to the dot in the center. (Assume the triangles are traveling at the same speed.) Which triangles would get to the center faster—those in Circle A or those in Circle B? Explain your reasoning. 3. Imagine that Circle A and Circle B are cells. The triangles are materials the cells need to move in or out, or exchange. Which cell would have a greater problem exchanging materials? Explain your reasoning. CHAPTER MYSTERY Pet Shop Accident Some plants and animals can reproduce by cell division. In the space below, draw a picture of how a plant might produce a new plant this way. 142