Respiratory System PCA Student Responses for Item 3: Gas Exchange in Plants and Animals Student Response 1 Similarity: One way the process of gas exchange in plants is similar to that in animals is that both plants and animals “inhale” a type of gas, and both “exhale” another type of gas. Difference: One way the process of gas exchange in plants is different from that in animals is that plants don’t have the same type of respiratory system as animals do,, so the don’t actually “breathe.” Instead, they’re able to absorb it through their bodies. Animals must breathe to exchange gases with the environment. Total Score Points Student Response 2 Similarity: They both provide each other with the gas they need Difference: The plants don’t breath they give off gas molecules. Plants breath carbon dioxe while animals breathe oxygen Total Score Points Student Response 3 Similarity: The way that gas exchangeing in plants and in animals is the same is that they both exchange gases through the air. Difference: The difference is that they do not allways exchange some of the same gases. Total Score Points Published by the Science Assessment Team of the Washington Office of the Superintendent of Public Instruction on October 3, 2007. Copyright © 2007 by Washington Office of the Superintendent of Public Instruction (OSPI) All rights reserved. Educational institutions within the State of Washington have permission to reproduce this document. All other individuals wishing to reproduce this document must contact OSPI OSPI Science Assessment 1 February 6, 2016 Respiratory System PCA Student Responses for Item 3: Gas Exchange in Plants and Animals Student Response 4 Similarity: Plants breathe in carbon dioxide and exhale oxygen, while animals, like us, breathe in oxygen and exhale carbon dioxide. So the both give to each other. Difference: The breathe in and out the opposite gases. Plants inhale carbon dioxide and exhale Oxygen. Animals do the opposite. Total Score Points Student Response 5 Similarity: A similarity is the gases that they both need. Both plants and animals need oxygen. Difference: A difference is the way they exchange the gases. Plants don’t breathe it in, and animals do. Total Score Points Student Response 6 Similarity: one way the process of gas exchange in plants is similar to the ones in animals is that they are both breathing in the same type of air molecules. Although was as humans just need the air that trees produce , plants and animals must breath air like us too. Difference: The difference in plant and animal gas exchange is that plants release a different type of air back to the earth and animals do to. They each are a different form of life and so they need different substances to stay alive. different air is released back into the air. Total Score Points Student Response 7 Similarity: Both animals and plants use something to breath plants breath in what animals breath out and animals breath in what plants breath out. Difference: Animals and plants are different plants breath in carbon dioxide and breath out oxegen but Animals breath in oxagen and breath out carbon dioxide Total Score Points OSPI Science Assessment 2 February 6, 2016 Respiratory System PCA Student Responses for Item 3: Gas Exchange in Plants and Animals Student Response 8 Similarity: The similarity is that the gas keeps animals alive and it allows them to grow. It also keeps plants alive and lets them grow. Difference: A difference about gas is that gas does not harm animals and it may harm plants Total Score Points Student Response 9 Similarity: Plants and animals both can breathe and grow Difference: Plants like carbon dioxside and animals have birthdays Total Score Points Student Response 10 Similarity: Plants take in carbon dioxide from animals and animals take in oxygen from plants. They both give off gas for each other. Difference: They are 2 different gases. Total Score Points OSPI Science Assessment 3 February 6, 2016