Phosphorylation Cascades Involving a Series of Protein Kinases Are Useful

question 48

Multiple Choice

Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because they ________.

• A) are species specific
• B) always lead to the same cellular response
• C) amplify the original signal many times
• D) counter the harmful effects of phosphatases
• E) use a small and fixed number of molecules

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Definitions:

Representative Sample

A portion of the population that represents the entire group accurately.

Single-subject Design

A research design that focuses on the responses of a single participant to document the effectiveness of an intervention.

Case Study

A non-experimental investigative method resulting in a description of the past and current functioning of a single individual, generally the result of information gathered through intense interactions over long periods. Variables such as family history, education, employment history, medical history, social relationships, and the patient’s level of psychological adjustment are described. The goal is a description of an individual’s current problem, and its relation to his or her past. A case study seeks to provide a theory concerning the etiology of a patient’s problem or psychological makeup, and/or a course of treatment and outcome. The oldest approach to the study of abnormal behaviour.

Experimentally Accepted

Validated or confirmed through designed and controlled experiments.