BIOLOGY: CONCEPTS & INVESTIGATIONS LL>C
4th Edition
ISBN: 9781264013548
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 5, Problem 7WIO
Summary Introduction
To determine:
Where would the
Concept introduction:
The hypothetical explanation given by earlier scientists regarding the mechanism of photosynthesis states that oxygen is derived from the carbon dioxide. The remaining carbon atom is added to the water molecule to form glucose. This explanation was challenged by a scientist Van Niel who states that the water splits, and oxygen is released, followed by remaining hydrogen atom combines with carbon dioxide to form glucose.
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In 1941, biologists exposed photosynthesizing cells to water containing a heavy oxygen isotope, designated 180. The "labelled" isotope appears in the 02 gas released in photosynthesis, showing that the oxygen came from water. Where would the 180 have ended up if the researcher had used 180-labeled CO2 instead of H2O?
A. ADP
B. NADP+
C. Rubisco
D. DP and NADP+
E. Glucose
What is the origin of oxygen on earth? What would happen to earth’s supply of oxygen if photosynthesis suddenly were to cease?
The law of conservation of matter states that no matter on earth can be created or destroyed. Using the following equation: 6H2O + 6CO2 + Sunlight—> C6H12O6 + 6O2, explain how the process of photosynthesis is an example of this.
Chapter 5 Solutions
BIOLOGY: CONCEPTS & INVESTIGATIONS LL>C
Ch. 5.1 - What is photosynthesis? Describe the reactants and...Ch. 5.1 - Prob. 2MCCh. 5.1 - Prob. 3MCCh. 5.1 - Prob. 4MCCh. 5.1 - How did the origin of photosynthesis alter Earths...Ch. 5.2 - Prob. 1MCCh. 5.2 - Prob. 2MCCh. 5.2 - Prob. 3MCCh. 5.2 - How does the reaction center chlorophyll interact...Ch. 5.3 - Prob. 1MC
Ch. 5.3 - Prob. 2MCCh. 5.4 - Prob. 1MCCh. 5.4 - Prob. 2MCCh. 5.4 - Prob. 3MCCh. 5.4 - Prob. 4MCCh. 5.5 - What is the relationship between the light...Ch. 5.5 - Prob. 2MCCh. 5.6 - Why is the Calvin cycle also called the C3...Ch. 5.6 - Prob. 2MCCh. 5.6 - What conditions maximize photorespiration?Ch. 5.6 - Prob. 4MCCh. 5.6 - How is the CAM pathway similar to C4 metabolism,...Ch. 5.7 - Prob. 1MCCh. 5.7 - Prob. 2MCCh. 5 - Where does the energy come from to drive...Ch. 5 - Prob. 2MCQCh. 5 - Prob. 3MCQCh. 5 - The evolution of photosynthesis resulted in a. an...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Prob. 7MCQCh. 5 - A plant that opens its stomata only at night is a...Ch. 5 - Imagine that multiple simultaneous volcanic...Ch. 5 - Prob. 2WIOCh. 5 - Prob. 3WIOCh. 5 - Would a plant grow belier in a room painted blue...Ch. 5 - Determine whether each of the following molecules...Ch. 5 - Of the many groups of photosynthetic bacteria,...Ch. 5 - Prob. 7WIOCh. 5 - Over the past decades, the CO2 concentration in...Ch. 5 - How does photosynthesis help compensate for...Ch. 5 - How is the CAM pathway adaptive in a desert...Ch. 5 - Explain how C4 photosynthesis is based on a...Ch. 5 - Explain why each of the following misconceptions...Ch. 5 - Prob. 1PITCh. 5 - 2. How would you incorporate the Calvin cycle,...Ch. 5 - Prob. 3PITCh. 5 - Prob. 4PITCh. 5 - Prob. 5PIT
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- Why are carnivores, such as lions, dependent on photosynthesis to survive?arrow_forwardThe products of photosynthesis are carbohydrate molecules and O2. From which of the substrate molecules (CO2 or H2O) are the oxygen atoms derived?arrow_forwardWhy would nature evolve a key enzyme, rubisco, that is so sensitive to oxygen, resulting in photorespiration?arrow_forward
- How will the increase in atmospheric CO2 impact photosynthesis? How will this impact life on earth (Human or otherwise)?arrow_forwardWhy does the boundary layer surrounding a photosynthetic organism make it more difficult to exchange CO2 and O2?arrow_forwardPhotosystem 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_forward
- Photosynthesis involves the movement of electrons. Which of the following sequences correctly represents the flow of electrons during photosynthesis? A. H20 > NADPH > G3P B. H2O > G3P > 02 C. C02 > NADPH > 02 D. CO2 > ATP > G3Parrow_forwardYou are growing algae in culture and expose them to CO2 that contains radiolabeled oxygen. Where does the radiolabeled oxygen end up after photosynthesis? a. water b. oxygen c. carbon dioxide d. carbohydrates e. carbon monoxidearrow_forwardThe pure “fire air” consumed by a burning candle in a sealed glass jar, or by a mouse during aerobic respiration (in experiments conducted by Joseph Priestley), contains which of the following elements? hydrogen and carbon (derived from the C6H12O6 produced by plants during photosynthesis) carbon and oxygen (derived from the CO2 consumed by plants during photosynthesis) carbon only (derived from the C6H12O6 produced by plants during photosynthesis) hydrogen only (derived from the H2O produced by plants during photosynthesis) oxygen only (derived from the O2 produced by plants during photosynthesis)arrow_forward
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