. Bacteria can generate energy using a variety of different electron transport chain components depending on the environment. a. List the three common components of most electron transport chains? b. Under what environmental condition would a bacterium shift its metabolism from aerobic organotrophy to aerobic lithotrophy? c. Which component(s) of the respiratory chain from 4a would change under the environmental conditions of 3b? d. Define âreverse electron flow.â What is the product and why is this process necessary?
. Bacteria can generate energy using a variety of different electron transport chain components depending on the environment. a. List the three common components of most electron transport chains? b. Under what environmental condition would a bacterium shift its metabolism from aerobic organotrophy to aerobic lithotrophy? c. Which component(s) of the respiratory chain from 4a would change under the environmental conditions of 3b? d. Define âreverse electron flow.â What is the product and why is this process necessary?
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1.
__________ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location.
Lysosomes |
Endosomes |
Peroxisomes |
Nucleosomes 2. Biologists cannot possibly study all living species. Instead, they try to understand cell behavior by studying a select subset of them. Which of the following characteristics are useful in an organism chosen for use as a model in laboratory studies?
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