Current Location 1. Principles of Biology (BIO102.SP13.ZB) 2. Assignments 3. ... 4. Module 4 Quizzes, Exam, and Study Materials 5. Review Test Submission: Ch 6 Quiz: Energy for Life Skip to Course Content Skip to Top Frame Tabs Menu Management Options Principles of Biology (BIO102.SP13.ZB) Home Page Announcements Staff Info Syllabus & Resources Assignments Discussion Board
My Grades Send Email Apps Review Test Submission: Ch 6 Quiz: Energy for Life Skip to Course Menu Skip to Top Frame Tabs Content User Rebekah Breitkreutz Course Principles of Biology (BIO102.SP13.ZB) Test Ch 6 Quiz: Energy for Life Started 3/4/13 8:27 AM Submitted 3/4/13 8:47 AM Status Completed Attempt Score 3 out of 5 points Time Elapsed 20 minutes. Instructions Question 1 0.5 out of 0.5 points During photosynthesis, ___________ is oxidized, while ___________ is reduced. Answer Selected Answer: water; carbon dioxide Response Feedback: Photosynthesis can be simplified to a redox reaction in which electrons are removed from water (it is oxidized), and transferred to carbon dioxide, which is then reduced. Question 2
0.5 out of 0.5 points ATP and NADPH are both used during the Calvin cycle. What is the function of each? Answer Selected Answer: ATP supplies energy and NADPH supplies electrons for reducing power. Response Feedback: Energy from ATP is used both to create G3P and to regenerate the starter molecule, RuBP. NADPH supplies electrons to be used as reducing power. Question 3 0 out of 0.5 points Sucrose, cellulose, amino acids, and starch are all made from what starter molecule in plants? Answer Selected Answer: Glucose Response Feedback: Plants are capable of forming all of the molecules that they need to function from the produce molecule of the Calvin cycle. This molecule is glyceraldehyde-3-phosphate (G3P). Question 4 0.5 out of 0.5 points The enzyme-rich solution found within the chloroplast is called the ________. Answer Selected Answer: stroma Response Feedback: Among other things, the stroma contains enzymes that participate in the Calvin cycle reactions. Question 5 0.5 out of 0.5 points CAM photosynthesis limits CO 2 fixation to nighttime hours in order to Answer Selected Answer: open stomata only at night, limiting water loss because of heat and low
humidity. Response Feedback: CAM photosynthesis partitions the processes by time, performing Calvin cycle reactions only when stomata open at night to let in CO 2 from the air. This minimizes water loss because of the extreme heat and low humidity. Question 6 0 out of 0.5 points Carotenoids are found in high concentrations in yellow and orange leaves or vegetables. This color is seen because the carotenoid pigments Answer Selected Answer: Absorb all wavelengths of light and then transmit yellow and orange wavelengths.
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