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Signal Transduction Mechanisms Quiz

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Questions and Answers

What is the process of converting extracellular signals into cellular responses known as?

Signal transduction (correct)

Cytoplasmic binding

Nuclear distribution

Cell membrane synthesis

Which type of receptors are involved in the transduction of ligands binding to the cytoplasm?

Extracellular receptors

Nuclear receptors

Intracellular receptors (correct)

Membrane-bound receptors

What is the main function of hormones, neurotransmitters, and growth signals in cellular communication?

Signal transduction (correct)

Membrane distribution

Cell division

Metabolism regulation

What is the intended learning outcome related to the distribution of total body fluids and the percentage of water in the body?

Identify the volume of water in the body (B) Signup and view all the answers

What does signal transduction aim to achieve in cellular responses?

Convert extracellular signals into cellular responses (D) Signup and view all the answers

What is the process of cells sending information to each other through many key chemical signals known as?

Cell intercommunication (A) Signup and view all the answers

What is the percentage of water in the body?

60% (D) Signup and view all the answers

Which chemical messengers include amines, amino acids, steroids, and polypeptides?

Intracellular signaling molecules (A) Signup and view all the answers

What do second messengers do inside cells?

Transmit signals from a receptor to a target cell (C) Signup and view all the answers

How are signals typically mediated when protein chemical signals interact with specific cell-surface receptors?

By changing concentrations of several intracellular messengers (D) Signup and view all the answers

What do lipophilic signal molecules do to activate plasma membrane-bound receptors?

Diffuse through the lipid bilayer and activate cytoplasmic or nuclear receptors (C) Signup and view all the answers