Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433769
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Textbook Question
Chapter 28.1, Problem 2CC
WHAT IF? If humans were photoautotrophs, making food by capturing light energy for photosynthesis how might our anatomy be different?
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Students have asked these similar questions
Why do plant leaves look green to us?
1. Because pigments in chloroplasts absorb green light, while red and blue light is reflected
2. Because pigments absorb red and blue light, while the green light is reflected
3. Because pigments absorb red and blue light and green light is emitted from their excited states
4. Because pigments in chloroplasts absorb green light, while red and blue light passes through the leaf
1. Look at the molecular formula for plant tissue. Where does the carbon
come from?
2. Where does the hydrogen in C6H12O6 come from?
3. When radioactive isotopes of oxygen atoms are put into CO2 molecules
and the plant is allowed to photosynthesize, only new plant tissue
(C6H12O6) is radioactive and the oxygen gas given off is not radioactive.
Draw a dotted line in the photosynthesis equation to show where the
oxygen atoms in CO2 go.
4. Draw a dotted line in the equation to show where the oxygen atoms
in H20 go.
highest rate of photosynthesis?
3. Based on your observations, which wavelength (color) of light might be expected to generate the
General Questions:
1. Why are plants typically green?
2. Photosynthesis produces the oxygen (O2) on which all aerobic organisms depend for survival.
What other factors make photosynthesis essential to the maintenance of virtually all life on
earth?
3. In the experiment that tested the effect of light intensity on the rate of photosynthesis, we did not
run a control tube during the experiment. Why is a control important in an experiment? How
would you design a control for this experiment? Be specific
4. If during the experiment, you found that the control tube generated pressure and had a
measurable rate of "photosynthesis" just like the experimental tube did, what would this fact tell
you about the experiment?
Chapter 28 Solutions
Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
Ch. 28.1 - Prob. 1CCCh. 28.1 - WHAT IF? If humans were photoautotrophs, making...Ch. 28.1 - Prob. 3CCCh. 28.2 - Prob. 1CCCh. 28.2 - Prob. 2CCCh. 28.2 - Prob. 3CCCh. 28.3 - Prob. 1CCCh. 28.3 - Prob. 2CCCh. 28.3 - Prob. 3CCCh. 28.4 - A sign is hammered into a tree 2 m from the trees...
Ch. 28.4 - Would you expect a tropical tree to have distinct...Ch. 28.4 - Prob. 3CCCh. 28 - Most of the growth of a plant body is the result...Ch. 28 - Prob. 2TYUCh. 28 - Heartwood and sapwood consist of A. bark. B....Ch. 28 - Prob. 4TYUCh. 28 - Which of the following would not be seen in a...Ch. 28 - Prob. 6TYUCh. 28 - SCIENTIFIC INQUIRY Grasslands typically do not...Ch. 28 - Prob. 8TYUCh. 28 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 28 - SYNTHESIZE YOUR KNOWLEDGE This stained light...
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- How are the NADPH and GA3P molecules made during photosynthesis similar? They are both end products of photosynthesis They are both substrates for photosynthesis They are both produced from carbon dioxide They both store energy in chemical bonds.arrow_forwardWhich of the following components is nor used by both plants and cyanobacteria to carry out photosynthesis? chloroplasts chlorophyll carbon dioxide waterarrow_forwardFigure 8.18 Which of the following statements is true? In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. G3P and water are products. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants. G3P and oxygen are products. In photosynthesis, water, carbon dioxide, ATP, and NADPH are reactants. RuBP and oxygen are products. In photosynthesis, water and carbon dioxide are reactants. G3P and oxygen are products.arrow_forward
- Photosystem II uses sunlight to strip electrons (and protons) away from which of the following substrate molecules (in the chloroplasts of green plants and green algae)? C6H12O6 only C6H12O6, H2O, and CO2 only CO2 only H2O and C6H12O6 only H2O onlyarrow_forwardNull hypothesis If the Hydrilla plant is placed in light conditions, then it will undergo photosynthesis and respiration. If the Hydrilla plant is placed in dark conditions, then it will undergo only respiration. The Hydrilla plant will undergo photosynthesis and respiration when placed in light conditions. The Hydrilla plant will undergo respiration only when placed in dark conditions. Determine the Independent and Dependent variablesarrow_forwardBased on the graph below, what can you infer? Absorption and Action Spectra 400 500 600 700 Wavelength of light (nm) photosynthesis is most active between 400- 475. That is why plants are green photosynthesis is most active between 450 -550. That is why plants are green photosynthesis is most active between 600- 700. That is why plants are green both a and c are correct There is not enough evidence in the graph to infer any of the above Absorbance / Photosynthetic Ratearrow_forward
- 1. What two types of cells contain chloroplasts? 2. Autotrophs make their own food using energy from 3. The food making process is called 4. What are the raw materials for photosynthesis? 5. What simple sugar is produced? 6. What gas is used in the process? What gas is released? 7. Where are most photosynthetic cells in plants found? 8. What compound can be made from glucose and serves as long term energy storage? 9. Compare the raw materials of photosynthesis to the products of respiration. 10. How are these two processes (photosynthesis and respiration) related?arrow_forwardQ1: Why is photosynthesis called “primary production”? Q2: How does animal life depend on photosynthesis? Q3: Explain how photosynthesis and cellular respiration are “complementary” processes.arrow_forwardHi, I am doing a question on photosynthesis and I have a question about the answer that was provided. The question states: If four molecules of CO2 enter the Calvin cycle, how many molecules of G3P are produced, and how many molecules are exported? I know that each turn makes 2 G3P so it would make 8 molecules. When I read the book it said that 3 turns makes 6 and then 1 is exported, so why does 4 turns make 8 and 4 be exported?arrow_forward
- What two main products result from photosynthesis? oxygen and carbon dioxide chlorophyll and oxygen sugars/carbohydrates and oxygen sugars/carbohyd rates and carbon dioxidearrow_forwardР Question 30 With your help, the bus arrives at the starting point for photosynthesis. You look at all the activity here - there's so much going on! Something looks a bit off though. Ms. Frizzle announces to everyone: "Keep your hands inside the bus everyone! I was told this tree has been treated with a chemical that shuts down Photosystem I." That makes sense with what you're seeing, you think. What do you see happening at Photosystem I? Or more to the point, what do you NOT see happening there? D Edit View Insert Format Tools Table 12pt v Paragraph P Р Question 31 The bus donast BIUA 2 T² هی 固v v 固v く く描く To 田 I √xarrow_forwardFill out this Venn diagram with the similarities and differences of photosynthesis and cellular respiration. OWN WORDS pls thank you and have a great day!!arrow_forward
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