Converts energy stored as carbs to ATP Which of the following statements accurately describes the process of gene transfer in prokaryotes, and also explains why this process is important? a) Two cells join by a conjugation tube, the entire DNA molecule in one cell is transferred to the other cell. The cell receiving DNA now has much greater fitness than it did originally because the amount of DNA in its cell has doubled. b) Two cells join by a conjugation tube, part of the DNA molecule in one cell is copied and transferred to the other cell. The cell receiving DNA may now have a new combination of genes. c) One cell surrounds and engulfs another cell. Rather than the consumer digesting the prey, the prey cell takes up residence within the consumer cell. DNA of the prey cell is incorporated into DNA of the consumer cell. d) One cell surrounds and engulfs another cell. DNA of the consumer cell is degraded and replaced by DNA of prey cell. This process allows prokaryotes to replace nonfunctioning DNA. List heterotrophic bacteria characteristics: Prokaryote cells Unicellular or colonies Heterotrophs Cyanobacteria characteristics: Prokaryote cells Unicellular or colonies Autotrophs chlorophyll for photosynthesis – Remember it is believed that the first organisms to inhabit Earth was similar to modern prokaryotes (heterotrophic bacteria). What emerged next? Protists- plants- animals Which of the following statements accurately describes antibiotics? are pathogenic bacteria that cause many diseases, including strep Antibotics throat, Lyme disease, tuberculosis, and plague. a) Antibiotics are molecules, often derived from non-pathogenic bacteria, that kill pathogens by disrupting cell wall synthesis. Antibiotics are a group of bacteria that form mutualistic associations with humans (e.g., gut bacteria). Antibiotics are a group of bacteria that are used in pollution remediation, including treatment of wastewater and cleaning up oil spills.
Converts energy stored as carbs to ATP Which of the following statements accurately describes the process of gene transfer in prokaryotes, and also explains why this process is important? a) Two cells join by a conjugation tube, the entire DNA molecule in one cell is transferred to the other cell. The cell receiving DNA now has much greater fitness than it did originally because the amount of DNA in its cell has doubled. b) Two cells join by a conjugation tube, part of the DNA molecule in one cell is copied and transferred to the other cell. The cell receiving DNA may now have a new combination of genes. c) One cell surrounds and engulfs another cell. Rather than the consumer digesting the prey, the prey cell takes up residence within the consumer cell. DNA of the prey cell is incorporated into DNA of the consumer cell. d) One cell surrounds and engulfs another cell. DNA of the consumer cell is degraded and replaced by DNA of prey cell. This process allows prokaryotes to replace nonfunctioning DNA. List heterotrophic bacteria characteristics: Prokaryote cells Unicellular or colonies Heterotrophs Cyanobacteria characteristics: Prokaryote cells Unicellular or colonies Autotrophs – chlorophyll for photosynthesis Remember it is believed that the first organisms to inhabit Earth was similar to modern prokaryotes (heterotrophic bacteria). What emerged next? Protists- plants- animals Which of the following statements accurately describes antibiotics? Antibotics are pathogenic bacteria that cause many diseases, including strep throat, Lyme disease, tuberculosis, and plague. a) Antibiotics are molecules, often derived from non-pathogenic bacteria, that kill pathogens by disrupting cell wall synthesis. Antibiotics are a group of bacteria that form mutualistic associations with humans (e.g., gut bacteria). Antibiotics are a group of bacteria that are used in pollution remediation, including treatment of wastewater and cleaning up oil spills.
BIOL_211_Stewart_dridgway_SI_Wrkst_9_5_KEY.docx