Membranes of thermophilic bacteria are stabilized by phospholipids with
A. fatty acids that tend to be more saturated.
B. All of the choices are correct.
C. fatty acids that have more double bonds.
D. fatty acids that have lower molecular weights.
Answer: A
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Answer the following statements true (T) or false (F)
1. A reason that some antibiotics harm bacteria but not humans is because these antibiotics inhibit enzymes only found in bacteria.
2.. Phagocytosis is a process that cells use to move large particles in through the cell membrane.
3. Receptor-mediated endocytosis is a specialized, more selective method of cell membrane transport than pinocytosis.
4. In addition to providing energy to the organism conducting photosynthesis, photosynthesis also provides raw materials and energy for heterotrophic organisms.
5. As this graph shows, photosynthesizing eukaryotes have several pigments and accessory pigments that selectively capture the green wavelengths of photons for photosynthesis.
The Human Genome Project was completed in:
a. 1986. b. 1993. c. 1996. d. 2001. e. 2003.
R-plasmids are most likely acquired via. Check all that apply.
a. translation. b. transformation. c. bacterial conjugation. d. transduction.
Which of the following is NOT true of lipids?
a. They store energy. b. They function as structural components of cellular membranes. c. They function as hormones. d. They are nonpolar. e. They have many oxygen-containing functional groups.