In the Diagram of the Chloroplast, Label a Thylakoid, the Stroma, and the Granum
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The Chloroplast In plants, photosynthesis takes place in chloroplasts. Inside chloro-plasts are saclike membranes called thylakoids. These thylakoids are arranged in stacks. A stack of thylakoids is called a granum. The region outside of the thylakoids, but inside the chloroplast is called the stroma. In the diagram of the chloroplast, label a thylakoid, the stroma, and the granum.
Chloroplast Answer the following questions. Circle the correct answer. 1. Where are the photosystems, or light-collecting units of photosynthesis, found? thylakoid membranes stroma 2. In what part of the chloroplast does the Calvin cycle take place? thylakoid membranes stroma 3. In what part of the chloroplast do the light-dependent reactions of photosynthesis take place? thylakoid membranes stroma
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Photosynthesis Overview Photosynthesis uses light energy to convert water and carbon dioxide into oxygen and high-energy sugars. The picture below shows an overall view of the process of photosynthesis. Use the words below to label the diagram.
Calvin cycle light energy sugars light-dependent reactions oxygen
water carbon dioxide
Use the diagram to answer the questions. 1.Finish the equation for photosynthesis.
2.Which of the following is also called the light-independent reactions of photosynthesis? Circle the correct answer. Calvin cycle electron transport chain
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Cellular Respiration and Photosynthesis Cellular respiration and photosynthesis can be thought of as opposite processes. Energy flows in opposite directions in the two processes. Complete the table using the words below. Some cells have been completed for you. Some words may be used more than once.
carbon dioxide energy release mitochondria water
Photosynthesis Cellular Respiration Function energy capture
Location chloroplasts
Reactants glucose; oxygen
Products oxygen; glucose
Use the table to answer the questions. 1. Which process releases energy for the cell? Circle the correct answer. cellular respiration photosynthesis
2. For which reaction is 6CO2 + 6H2O → C6H12O6 + 6O2 the correct
equation? Circle the correct answer. cellular respiration photosynthesis
3. How do the products of photosynthesis compare to the reactants of cellular respiration?
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The Mitochondrion In plant and animal cells, the final stages of cellular respiration take place in mitochondria. A mitochondrion has two membranes. The inner membrane is folded up inside the outer membrane. The space between the inner and outer membranes is called the inter-membrane space. The space inside the inner membrane is called the matrix. Label the inner membrane, intermembrane space, matrix, and outer membrane.
Answer the questions. Circle the correct answer. 1. In which membrane is the electron transport chain located? outer membrane inner membrane
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Cellular Respiration Overview Cellular respiration is the process that releases energy from food in the presence of oxygen.
Use the words below to label the diagram of cellular respiration on the lines provided.
ATP glycolysis mitochondrion electron transport chain Krebs cycle
Use the diagram to answer the questions. 1. Where does glycolysis take place?
2. Where do the Kreb cycle and electron transport chain take place?
© Pearson Education, Inc., publishing as Pearson Prentice Hall. 93 Name Class Date Lesson 7.4 Data Analysis 10 Mitochondria Distribution in the Mouse
Goal Interpret bar graphs to learn about cell activities.
Skills Focus Interpret Graphs, Analyze Data, Infer
Build Connections Medical researchers have a particular interest in mice because the mouse carries almost the same set of genes as humans. Studying mice is one way to learn about the function of human genes and body systems. Thus, the laboratory mouse can open a window into a greater understanding of the human body. Researchers have studied the makeup of several organs in mice. They found that some organs and tissues have more mitochondria than others. The mitochondrion is the organelle that provides a cell with energy. Researchers measured the volume of mitochondria and compared that to the total volume of the cells. In the bar graph below, that comparison is shown as a percentage. In areas where there were more mitochondria, the mitochondria made up a higher percentage of the total volume of the cell.
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Name Class Date Analyze and Conclude 1. Interpret Graphs What kind of information does the bar graph provide? Put into words what the graph indicates about the cells in a mouse liver.
2. Interpret Graphs Of the organs studied, which organ in a mouse has the most mitochondria in its cells? Which has the least? About what percentage of the total cell volume is made up of mitochondria in these two organs?
3. Calculate About how much more of the total cell volume is made up of mitochondria in the liver than in the pituitary gland?
4. Infer There are four chambers in the mouse heart—two ventricles and two atria. Remember that mitochondria supply cells with energy. Based on this fact and on information from the graph, do you think the left ventricle or the left atrium pumps blood from the heart to the rest of the body? Explain your answer.