CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 16, Problem 16TYK
Summary Introduction
To explain:
The feasibility of the approach of using a supertanker of iron dust in the oceans to grow more algae.
Introduction:
The growth of algae in the Southern Ocean was achieved by depositing huge reserves of metal iron on the ocean surface. The algae utilize carbon dioxide and help in the process of photosynthesis by consuming carbon dioxide. The decrease in the levels of the carbon dioxide decreases the chance of global warming.
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Watermelon snow” in Antarctica is caused by a species of photosynthetic green algae that thrives in subzero temperatures (Chlamydomonas nivalis). These algae are also found in high altitude year-round snowfields. In both locations, UV light levels tend to be high. Based on what you learned this week, propose an explanation for why this photosynthetic alga appears reddish-pink.
“Watermelon snow” in Antarctica is caused by a certain species of photosynthetic green algae that thrives in subzero temperatures (Chlamydomonas nivalis). These algae are also found in high-altitude, year-round snowfields. In both locations, Uv light levels tend to be high. Propose an explanation for why this alga appears reddish-pink.
In addition to the pigments commonly associated with photosynthesis, a certain photosynthetic species contains two additional pigment types. Which of the following best supports the claim that this species is better adapted to environmental changes than other photosynthetic species are?
a) The additional pigments allow the species to outcompete other species for the wavelengths of light commonly used in photosynthesis.
b) The increased pigment concentration better facilitates energy production within the cells of the species.
c) The pigment combination allows the organism to absorb heat as well as light, making better use of available energy.
d) The additional pigments allow the species containing them to harvest energy from wavelengths of light that the other photosynthetic species cannot use.
Chapter 16 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 16 - Explain how each of the following characteristics...Ch. 16 - Fill in the blanks on the phylogenetic tree (on...Ch. 16 - In terms of nutrition, autotrophs are to...Ch. 16 - A new organism has been discovered. Tests have...Ch. 16 - Which pair of protists has support structures...Ch. 16 - Prob. 6TYKCh. 16 - Which of the following prokaryotes is not...Ch. 16 - Prob. 8TYKCh. 16 - What characteristic distinguishes true...Ch. 16 - Prob. 10TYK
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- In endosymbiotic theory, host cells were believed to have ingested smaller individual photosynthetic organisms through pinocytosisarrow_forwardYou have discovered a cyanobacteria with only photosystem I. The bacteria is unable to fix CO2. Explain thoroughly how you think this microorganisms makes ATP and reducing powerarrow_forwardWhy might chemosynthetic communities exist only in places like the deep-ocean floor rather than across a wide range of land and sea habitats, the way photosynthesis-based communities are?arrow_forward
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