Multiple Choice
The role of an enzyme includes all except which of the following?
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7. Energy and Metabolism
Enzymes
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How are receptor proteins and enzymes similar in their function within a cell?
A
Both are involved in the transport of molecules across cell membranes.
B
Both are primarily involved in the structural support of the cell.
C
Both catalyze chemical reactions to speed up cellular processes.
D
Both bind specific molecules to initiate a cellular response.
Verified step by step guidance1
Understand the role of receptor proteins: Receptor proteins are located on the cell surface or within cells and are responsible for receiving and binding specific molecules, such as hormones or neurotransmitters, to initiate a cellular response.
Understand the role of enzymes: Enzymes are biological catalysts that speed up chemical reactions in the cell by lowering the activation energy required for the reaction to occur.
Identify the common function: Both receptor proteins and enzymes have specific binding sites that allow them to interact with particular molecules. This specificity is crucial for their function.
Compare their functions: While enzymes catalyze reactions, receptor proteins do not catalyze but instead bind to specific molecules to trigger a response, such as a signal transduction pathway.
Conclude the similarity: Both receptor proteins and enzymes bind specific molecules, but the key similarity in their function is that this binding initiates a cellular response, whether it be a chemical reaction or a signaling event.
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