Study%20Questions-Chapter-7

Study%20Questions-Chapter-7 - BIOL. 1305 Spring 2011 (CRN#...

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BIOL. 1305 – Spring 2011 (CRN# 22530) Study Questions Chapter 7: Cell Signaling and Communication 1. Which of the following statements is true? a. Eukaryotic, but not prokaryotic, cells process information from their environment. b. Prokaryotic, but not eukaryotic, cells process information from their environment. c. The mere presence of a signal will cause a cell to respond to it. d. Light can be a signal. e. Sense organs allow cells to respond to physical signals but not chemical signals. 2. To respond to a signal, a cell must have a(n) _______ molecule that can detect the signal. a. paracrine b. receptor c. autocrine d. responder e. All of the above 3. The first component of a signal transduction pathway is a(n) a. paracrine molecule. b. responder. c. receptor. d. hormone. e. effector molecule. 4. Cells receive which of the following signals? a. Light b. Sound c. Odorants d. Hormones e. All of the above 5. The signals that bind to receptors on nearby cells are known as a. paracrine signals. b. parasitic signals. c. autocrine signals. d. hormones. e. responders. 6. Which of the following is most likely to involve the circulatory system? a. Paracrine signals b. Parasitic signals c. Autocrine signals d. Hormones e. Responders 7. In the E. coli signal transduction pathway, changes in the aqueous media cause part of the receptor to undergo a change in a. responder. b. conformation. c. hormonal activity. d. amplification. e. extracellular environment. 8. Which of the following is true about EnvZ? a. It phosphorylates itself during signal transduction.
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Study%20Questions-Chapter-7 - BIOL. 1305 Spring 2011 (CRN#...

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