Cellular Communication and Responses Quiz
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Questions and Answers

Which of the following is NOT a type of cellular response?

  • Cell migration (correct)
  • Secretion and absorption
  • Apoptosis (programmed cell death)
  • Muscle contractions

Which of the following molecules typically binds to receptors on cell membranes?

  • Proteins
  • Carbohydrates
  • Lipids
  • All of the above (correct)

What is the primary function of kinases in cellular communication?

  • Phosphorylate and activate other proteins (correct)
  • Amplify the signal from a single receptor
  • Initiate cascade reactions
  • Remove phosphate groups from proteins

Which of the following statements about amplification in cellular communication is correct?

<p>It is an exponential process where activated molecules trigger the activation of many more molecules. (B)</p> Signup and view all the answers

What is the role of phosphorylases in cellular communication?

<p>Deactivate enzymes by removing phosphate groups (C)</p> Signup and view all the answers

Which of the following statements about cascade reactions in cellular communication is correct?

<p>They involve different molecules activating each other in a series of reactions. (A)</p> Signup and view all the answers

What are the three measurable responses that were initially researched when looking at cell response?

<p>Calcium increase, CAMP changes, IP3 changes (B)</p> Signup and view all the answers

Which type of signaling involves a cell locally secreting a molecule that binds to a nearby receptor?

<p>Paracrine signalling (D)</p> Signup and view all the answers

What is true about long distance signaling in terms of hormone types?

<p>Hormonal signaling involves both Protein hormones and Lipid hormones (C)</p> Signup and view all the answers

Which stage of cell signaling involves the binding of a molecule to the receptor protein?

<p>Reception (D)</p> Signup and view all the answers

Which type of membrane receptor is associated with G protein and activates adenylyl cyclase?

<p>GPCR-AC (C)</p> Signup and view all the answers

What are the second messengers that spread throughout the cell through diffusion?

<p>$cAMP$ molecules (C)</p> Signup and view all the answers

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