Which of the following is inconsistent with the current understanding of how plants and microbes interact with each other?
A. Microbes produce chemical signaling molecules that plants can react to.
B. Plants are able to send chemical signals to microbes but they are not able to receive signals from the microbes.
C. Plants produce chemical signaling molecules that microbes can detect and react to.
D. All of these statements are inconsistent with our understanding of how plants and microbes interact with each other.
Answer: B
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A patient has a variety of cellular problems, including proteins in the endomembrane system going to the wrong locations, and no synthesis of estrogen or testosterone. Identify the organelle-symptom pair that is defective.
A. The protein location problem is associated with the Golgi apparatus and the lack of testosterone production is an issue with the rough ER. B. A problem in the rough ER is responsible for the protein location problem, and a problem in the smooth ER is responsible for the estrogen and testosterone problem. C. A problem in the smooth ER is responsible for the protein location problem, and an issue in the Golgi apparatus is responsible for the production of estrogen and testosterone. D. Protein sorting normally occurs in the peroxisomes and is not functioning properly, and a damaged rough ER cannot produce estrogen and testosterone.
Which of the following statements is correct?
a. Allopatric populations look different and use different resources. b. Allopatric populations look different and use the same resources. c. Allopatric populations look the same and use different resources. d. Allopatric populations look the same and use the same resources. e. Sympatric and allopatric populations both look the same and use the same resources.
In the endodermis, what structure allows the ions in water to enter or exit a cell?
A. Transport proteins in a cell’s cytoplasm B. Transport proteins in a cell’s plasma membrane C. Sugars produced in source regions D. Organic compounds stored in plant tissues E. Companion cells
Boiling water is a common method used to sterilize water that may be contaminated. Subjecting microbes to such high temperatures is an example of a(n) _________________ technique.
A) Microbicidal B) Pasteurization C) Tyndallization D) Microbiostatic E) Intermittent sterilization