Connecting Concepts

Use Science Graphics

A water plant placed under bright light gives off bubbles of oxygen. The table below contains the results of an experiment in which the distance from the light to the plant was varied. Use the data table to answer questions 30–33.

A data table titled 'Oxygen Production' shows data for 'Distance From Light' and 'Bubbles Produced per minute'.ddd

  1. Graph Use the data in the table to make a line graph.

  2. Interpret Graphs Describe the observed trend. How many bubbles would you predict if the light was moved to 50 cm away? Explain.

  3. Draw Conclusions What relationship exists between the plant's distance from the light and the number of bubbles produced? What process is occuring? Explain your answer.

  4. Apply Concepts Based on the results of this experiment, explain why most aquatic primary producers live in the uppermost regions of deep oceans, lakes, and ponds.

Write About Science

  1. Creative Writing Imagine that you are an oxygen atom and two of your friends are hydrogen atoms. Together, you make up a water molecule. Describe the events and changes that happen to you and your friends as you journey through the light-dependent reactions and the Calvin cycle of photosynthesis. Include illustrations with your description.

  2. Assess the In eukaryotic plants, chlorophyll is found only in chloroplasts. Explain how the function of chlorophyll is related to its very specific location in the cell.


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Table of Contents

Miller & Levine Biology UNIT 1 The Nature of Life UNIT 2 Ecology UNIT 3 Cells UNIT 4 Genetics UNIT 5 Evolution UNIT 6 From Microorganisms to Plants UNIT 7 Animals UNIT 8 The Human Body A Visual Guide to The Diversity of Life Appendices Glossary Index Credits