Write the empirical formula for a carbohydrate
Fill in the blank(s) with the appropriate word(s).
ANSWER: (CH2O)n
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Home-canned foods should be boiled before consumption to prevent botulism. Considering that this treatment does NOT destroy endospores, why would it be helpful in preventing the disease?
A. Because it would destroy the vegetative cells, and only the vegetative cells cause the disease. B. Because it would at least weaken the endospores, making them more susceptible to elimination by our immune system. C. Because the heat would denature the botulism exotoxin and inactivate it. The exotoxin is what leads to the disease symptoms, so this would make the food safer. D. Because the heat would denature the botulism endotoxin and inactivate it. The endotoxin is what leads to the disease symptoms, so this would make the food safer.
What is the appropriate order of the stages of investigating whether maple trees drop their leaves in the autumn because of colder days?
(1) Maple trees are grown in two greenhouses where the only variable is temperature (15?C vs. 10?C). (2) The hypothesis is rejected. (3) There is no statistical difference in the number of leaves dropped at 10?C as compared to 15?C. (4) The observation is that maple trees drop their leaves in autumn. (5) The hypothesis is that maple trees drop their leaves because of colder temperatures. A. 1, 2, 3, 4, 5. B. 3, 4, 5, 1, 2. C. 5, 4, 3, 1, 2. D. 4, 5, 1, 3, 2. E. 3, 4, 2, 1, 5.
What type(s) of shape can carbon molecules assume?
a. chains b. rings c. a combination of both chains and rings d. rings combined with each other, but not with chains
Once an enzyme has converted substrates into products, the active site reverts back to its original form
Indicate whether the statement is true or false