UNIT 4: Cells & Their Environment DAYSHEET 51: Surface Area Versus Volume

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1 UNIT 4: Cells & Their Environment DAYSHEET 51: Surface Area Versus Volume Name: Biology I Date: Bellringer: Read over and sign the contract below before beginning your Cornell Notes. Substitute Contract I understand that Ms. Cook has invested a Write your name here great deal of time and energy into my academic and professional development. When Ms. Cook is not present in class, she still expects me to be and do my best. The Biology SOL Examination is only 79 class periods away, so today s class is valuable and should be used wisely. The work that Ms. Cook has asked the substitute to help me complete is not busy work. Ms. Cook respects my time too much to ask me to do something that would not impact my academic growth in a positive way. I understand that I am being trusted to use technology to help me prepare for my Summative Assessment on Friday, December 6 th. If I use my technology inappropriately, I am wasting my time and ability to be successful in Biology. Ms. Cook trusts me to monitor my own behavior in a way that demonstrates my respect for her, the substitute teacher, and myself. If I get frustrated in class today, I will exercise the following professional options to help me have a successful class period: 1. Read over the directions for each assignment. 2. Ask the substitute for more direction. 3. Ms. Cook for help (she is available via Biomonsters@gmail.com) I understand that my daysheet is due at the end of the class period. If I use my time wisely today I will leave biology with a 100%, an opportunity to earn another A on Friday s assessment, and Ms. Cook s respect (as well as a treat for being AWESOME when Ms. Cook returns). Sign your name here Date

because: Small cells are like: Large cells are like: Stop & Jot 1. Look at the pictures of the two cells below.

2 Activity 1: Cornell Notes Biology Objective / Essential Question: Main Ideas / Questions: Notes: 1. Cells have to take in: Cells have to remove: In small cells, all parts of the cell are near: This is important because: Small cells are like: Large cells are like: Stop & Jot 1. Look at the pictures of the two cells below. Which cell do you think is like Reid s Grocery Store, and which cell do you think is like Walmart? Explain your answer. Cell 1 Cell 2

Stop & Jot If you wanted to QUICKLY purchase the following items from the store: toothpaste, macaroni and cheese, oatmeal and toilet paper. Would you go to Reids Market or to a Super Center?

3 Main Ideas / Questions: 2. Notes: The outside of a cell is its The inside of the cell is its. The volume of the cell at a rate than its surface area. As cells in size, cellular parts move further away from the. Stop & Jot If you wanted to QUICKLY purchase the following items from the store: toothpaste, macaroni and cheese, oatmeal and toilet paper. Would you go to Reids Market or to a Super Center? Why? 3. Calculating Surface Area: -Multiply touching edges together to determine the area of one side. -Multiply that value by the of sides. Calculating Volume: x x Stop & Jot Determine the Surface area and Volume of the 2 cube below: S.A: S.A: 3cm 7cm 3cm 3cm Volume: 7cm Volume: 7cm If these two cubes were cells, which one would be more efficient? Why?

4 Main Ideas / Questions: Notes: 4. Stop & Jot Figure Total # of Cubes Surface Area of Figure (cm 2 ) Volume of Figure (cm 3 ) Surface Area to Volume Ratio (SA/V) A B C D Which figure above would you want to represent cells in body? Explain your answer.

5 Activity 2: Check your Stop & Jot Answers 1. Go to 2. Click on the Courses link 3. Click on the CHS Academic Biology link 4. Click on the What we did in class today link 5. Click on today s date to access the answer sheet to your Stop & Jot questions. Activity 3: Formative Assessment Review

Activity 4: Formative Cell Membrane & Surface Area/Volume Assessment 1. Log into QuizStar. 2. Complete your Formative Cell Membrane & Surface Area/Volume Assessment 3.

Activity 5: Midterm Review Directions: Please read each section of questions carefully using your test- taking strategies (underline, highlight, and circle ).

8 Activity 4: Formative Cell Membrane & Surface Area/Volume Assessment 1. Log into QuizStar. 2. Complete your Formative Cell Membrane & Surface Area/Volume Assessment 3. Remove all daysheets from your desk before completing this assessment. 4. If you got kicked out of your assessment, Ms. Cook so she can get you back into the quiz. Activity 5: Midterm Review Directions: Please read each section of questions carefully using your test- taking strategies (underline, highlight, and circle ). Biology Objective #1: The Nature of Science 1.1 Shaymontra noticed a flower growing from a small opening in the sidewalk on her way to school this morning. She hasn t seen this flower before, so she made a point to try to remember as much about the flower as she could. She noted that the flower was light purple and very small. When Shaymontra stopped to remember the flower s unique characteristics, what was she doing? a. Shaymontra was identifying the independent variable. b. Shaymontra was making observations. c. Shaymontra was making a hypothesis. d. Shaymontra was making inferences. 1.2 Once at school, Shaymontra entered her science classroom and noticed that her teacher placed new laboratory equipment at her lab station. She said the beaker looks and feels a lot like glass. Shaymontra s statement is a(n) a. observation b. metaphor c. inference d. hypothesis 1.3 When Shaymontra started her laboratory she noticed that the volume of liquid in the graduated cylinder was about 200 milliliters. Was Shaymontra making a qualitative or a quantitative observation? 1.4 Shaymontra also noticed that the liquid in her graduated cylinder appeared clear; She could see through it. Was Shaymontra making a qualitative or a quantitative observation? 1.5 Which of the following statements are examples of an inference about the picture below? a. There are curved lines in the image. b. The image is black and white. c. The designer wanted to make people dizzy. d. There are six columns of white cubes.

9 Biology Objective #3: Experimental Design Directions: Read the scientific experiment below. Use the reading to answer questions A scientist knows that the temperature of the water in an aquarium affects the percent of fish eggs that hatch. She is attempting to identify which water temperature will cause the highest percentage of fish eggs to hatch. The scientist sets up 5 aquariums at the following temperatures: 10 C, 20 C (the recommended temperature for home aquariums), 30 C, 40 C, and 50 C. She adds 50 fish eggs to each aquarium and records the number of eggs that hatch in each aquarium. 3.1 What is the independent variable (IV) in the experiment? 3.2 What is the dependent variable (DV) in the experiment? 3.3 What is/are the control group(s) in this experiment? 3.4 What is/are the experimental group(s) in this experiment? 3.5 List one control in the experiment: Biology Objective #4: Graphing & Mathematical Analysis of Data Directions: The daily high temperatures for Santiago City in the month of January were recorded and graphed. Use the graph to answer questions During what two dates in January was there the greatest decline in daily high temperature? 4.2 What was the mean daily high temperature for the dates January 3 rd through January 8 th? 4.3 What was the daily high temperature trend from January 7 th through January 10 th? a. The temperature decreased b. The temperature leveled out c. The temperature increased d. The temperature remained constant 4.4 What was the highest daily temperature in Santiago City for the month of January? 4.5 What is the dependent variable on the graph?

10 Homework 51: Cells Revisited Name Biology I Date Directions: Use your reading strategies (underline, highlight and/or circle) as you read through the review material below. Use this information to answer the questions that follow. Cells: All living things are composed of cells. Robert Hooke was the first scientist to use this term for the units of life that make up living things. With the help of Hooke and a number of other scientists, we were able to develop the Cell Theory. The cell theory is composed of the three items listed below: All living things are composed of cells. Cells can only come from pre-existing cells. Cells are the unit of structure of function. There are two main types of cells: Prokaryotic Cells and Eukaryotic Cells. Prokaryotic cells are very simple, small in size, lack membrane-bound organelles, and do not contain a nucleus. Eukaryotic cells are more complex, larger in size, contain membrane-bound organelles, and they do contain a nucleus. The only example of a prokaryotic cell is bacteria. All other living things are composed of eukaryotic cells. Eukaryotic Cells: There are two main types of eukaryotic cells: Plant Cells and Animal Cells. Although plant and animal cells have a lot in common, there are some significant differences between them. These differences are listed in the chart below: Have a cell wall Plant Cells Have a large central vacoule Contain chloroplast (to make their own food using sunlight during photosynthesis) Animals Cells Do not have a cell wall Do not have a large central vacoule Do not contain chloroplast (cannot make their own food- animals use cellular respiration to make ATP from food ingested) 1. What types of cells make up humans (prokaryotic or eukaryotic)? 2. What organelle allows plant cells to make their own food? 3. What chemical process allows plant cells to make their own food?

11 4. What is the only example of a prokaryotic organism? 5. List 4 major differences between prokaryotes and eukaryotes: Cellular Organelles: Organelle Cellular Function City Analogy 1. Nucleus The nucleus contains DNA and controls all the activity of the cell. 2. Ribosomes Site of protein synthesis (where proteins are made) 3. Lysosomes Breakdown old cellular components so they can be reused by the cell 4. Golgi Apparatus (body) Receives, packages, and ships out proteins. Mayor Factories Recycling Center Post Office 5.Endoplasmic Reticulum System of membranes and sacs that transport molecules to one part of the cell to another. Highway 6. Mitochondria Site of ATP production in the cell. Power Plant 7. Chloroplast (plant cells only) Captures sunlight and converts it into chemical energy (sugar) during photosynthesis Solar Panel 6. Which organelle is the site of cellular respiration? 7. Which organelle is the site of photosynthesis? 8. Which organelle is responsible for regulating all metabolic activity within a cell? 9. Which organelle is responsible for assembling proteins in the cell?

Cell Alive Homeostasis Plants Animals Fungi Bacteria. Loose DNA DNA Nucleus Membrane-Bound Organelles Humans

UNIT 3: The Cell DAYSHEET 45: Introduction to Cellular Organelles Name: Biology I Date: Bellringer: Place the words below into the correct space on the Venn Diagram: Cell Alive Homeostasis Plants Animals