Biology: Concepts and Investigations
4th Edition
ISBN: 9780078024207
Author: Mariëlle Hoefnagels Dr.
Publisher: McGraw-Hill Education
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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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(g) The figure given below represents an
experiment to demonstrate a particular
aspect of photosynthesis. The alphabet 'A'
represents a certain condition inside the
flask.
2
КОН
(i) What is the aim of the experiment ?
(ii) Identify the special condition inside the
flask.
(iii) Name an alternative chemical that can be
used instead of KOH.
(iv) In what manner do the leaves 1 and 2
differ at the end of the starch test ?
The photosynthetic process, used by the chloroplasts of green plants and green algae, is best represented by which of the following balanced equations?
C6H12O6 + 6O2 + 6H2O g 6CO2 + 12H2O
C6H12O6 + C6H12O6 g C12H22O11 + H2O
6CO2 + 12H2O g C6H12O6 + 6O2 + 6H2O
C12H22O11 + H2O g C6H12O6 + C6H12O6
6CO2 + 12H2S g C6H12O6 + 6S2 + 6H2O
In the photosynthesis lab, a group of students found that in the blue light condition, there was a change in absorbance (ΔA620) of 0.324 in extracted spinach chloroplasts. The students later went on a hike and located a plant they had never seen before and were interested in how the photosynthesis rates would compare to their experiment with spinach chloroplasts. They extracted chloroplasts of the unknown green-leaved plant and exposed them to the same experimental conditions as before. The students calculated the ΔA620 to be 0.100.
Which plant (spinach or unknown) has the highest rate of photosynthesis? Explain your answer using evidence, being sure to demonstrate your understanding of the dependent variable.
Chapter 5 Solutions
Biology: Concepts and Investigations
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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