Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 8, Problem 9TYK
You bite into a spinach leaf. Which one of the following is true?
a. You are getting 50% of the protein in the leaf in the form ofribulose 1,5-bisphosphate carboxylase.
b. The major pigment you are ingesting is a carotenoid.
c. The water in the leaf is a product of the light-independentreactions.
d. Any energy from the leaf you can use directly is in the form ofATP.
e. The spinach most likely was grown in an area with a low CO2 concentration.
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The main purpose of the light-independent reactions is to ________.
a.
convert solar energy to chemical energy
b.
convert solar energy to ATP for short-term energy use
c.
build carbohydrates for long-term energy storage
Plants where light independent reactions take place in the same cells as light dependent reactions (mesophyll cells) are using which kind of photosynthesis?
A. C3 only
B. C4 only
C. Either C3 or CAM
D. Either C3 or C4
Use the data to create a graph in Excel. It should be a scatter plot with a line connecting each point. Looking at the graph:
a/ Which wavelengths absorbed most by spinach and likely used for photosynthesis?
b/ Which wavelengths are absorbed least?
Chapter 8 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 8.1 - What are the two stages of photosynthesis?Ch. 8.1 - In which organelle does photosynthesis take place...Ch. 8.2 - What is the difference in function between the...Ch. 8.2 - Prob. 2SBCh. 8.2 - What is the difference between the linear electron...Ch. 8.3 - What is the reaction that rubisco catalyzes? Why...Ch. 8.3 - How many molecules of carbon dioxide must enter...Ch. 8.4 - Prob. 1SBCh. 8.4 - Prob. 2SBCh. 8.4 - How are carbon fixation and the Calvin cycle...
Ch. 8.5 - How are the reactants and products of...Ch. 8 - An organism exists for long periods by using only...Ch. 8 - Prob. 2TYKCh. 8 - Which of the following is a correct step in the...Ch. 8 - Prob. 4TYKCh. 8 - Prob. 5TYKCh. 8 - Which of the following statements about the C4...Ch. 8 - Prob. 7TYKCh. 8 - The oxygen released by photosynthesis comes from:...Ch. 8 - You bite into a spinach leaf. Which one of the...Ch. 8 - Animal metabolism and plant metabolism are related...Ch. 8 - Discuss Concepts Suppose a garden in your...Ch. 8 - Prob. 12TYKCh. 8 - Discuss Concepts Like other accessory pigments,...Ch. 8 - Prob. 14TYKCh. 8 - Prob. 15TYKCh. 8 - Prob. 16TYKCh. 8 - Photosynthesis directly opposes respiration in...Ch. 8 - Prob. 2ITDCh. 8 - Prob. 3ITDCh. 8 - Prob. 4ITD
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- If a plant could not make glucose via photosynthesis, where would the defect show up? A. thicker cell walls B. less starch C. more growth D. less chlorophyllarrow_forwardIn C3 plants, _______ makes sugar production inefficient when stomata close on hot, dry days. a. photosynthesis c. photorespiration b. photolysis d. carbon fixationarrow_forwardWhich of the following changes would decrease ATP production in the light-dependent reactions of photosynthesis? a. decreasing the pH of the thylakoid lumen b. decreasing the pH of the chloroplast stroma c. increasing the concentration of NADP+ in the chloroplast stroma d. making the thylakoid membrane freely permeable to protons by adding a proton channel e. two of the above would decrease ATP productionarrow_forward
- Where did the energy to power the light-independent reactions come from? A. chlorophyll from photosystem B. FADH2FADH2 from the outer membrane C. NADH in mitochondria D. proton gradient across thylakoidarrow_forwardThe green color of plants is explained by the wavelengths of light that are reflected, transmitted, and absorbed by the chlorophylls in the thylakoids. Which of the following statements is true? Plants appear green because chlorophylls reflect and transmit yellow and green wavelengths of light, and absorb red and violet-blue wavelengths of light. Plants appear green because chlorophylls reflect and transmit red and blue wavelengths of light, and absorb yellow and green wavelengths of light. Plants appear green because chlorophylls reflect and transmit red and blue wavelengths of light, and absorb white wavelength of light. Plants appear green because chlorophylls reflect and transmit white wavelength of light, and absorb red and violet-blue wavelengths of light.arrow_forwardYour friend is looking for advice for growing healthy houseplants. With what you read in the textbook about photosynthesis, provide your friend with three specific factors that are key to successful plant growth. Provide specific details as to why you chose these factors and how your friend can make sure the plants are able to maximize their photosynthetic rate.arrow_forward
- . Plants can harvest the energy from light, but also rely on light as a stimulus to control other processes. Briefly describe one example of how plants use light for something other than photosynthesis, including the processes, structures and/or molecules involved.arrow_forwardIn which process is ATP produced in both photosynthesis and cellular respiration by ATP synthase, respectively? a. Krebs Cycle and Light-dependent reaction b. Light-dependent reaction and oxidative phosphorylation c. Glycolysis and Light-independent reaction d. Light-independent reaction and oxidative phosphorylationarrow_forwardStudents are preforming an experiment to study the role of light in photosynthesis. They place an Elodea plant into a large test tube with water and assemble a volumeter using a cork and calibrated glass tubing. Then, the apparatus is placed near a lamp. Soon after, the water level in the tubing begins to move upward. Why does the edge of the water move upward?arrow_forward
- Using the graph comparing photosynthetic rate and absorption of different wavelengths of light, what can be concluded? a) The photosynthesis rate at 550 nm is the highest b) Chlorophyll a absorbs wavelengths at both ends of the spectrum c) Chlorophyll b is associated with the greatest rate of photosynthesis. d) Carotenoids absorb the narrowest range of wavelengths of lightarrow_forwardPhotorespiration becomes more likely when a. CO2 concentrations are high in leaf cells. b. stomata remain closed in C3 plants. c. glucose concentrations are low in leaf cells. d. ATP binds to rubisco.arrow_forwardWhich of the following statements are TRUE regarding plant pigments? a. Chlorophyll is the main plant pigment molecule in plants. b. Chlorophyll absorbs light energy from the sun. c. Carotenoids are mainly responsible for the fall color in leaves that we see. d. There are two types of chlorophyll, a and b. e. All of the above are true.arrow_forward
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