Channels that open due to a compound binding to receptor sites on the extracellular surface of the channels would be considered: non gated ion channels

voltage gated ion channels

ligand gated ion channels

g complex linked receptor proteins

carrier proteins

Answer and Explanation

The Correct Answer is B

A. voltage gated ion channels: These open in response to changes in membrane potential, not chemical binding.
B. ligand gated ion channels: Ligands (like neurotransmitters) bind to the channel, causing it to open or close.
C. G-protein complex linked receptor proteins: These are receptors that activate intracellular signaling cascades, not ion channels directly.
D. carrier proteins: Carrier proteins transport substances across membranes but do not form open channels.

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Correct Answer is B

Explanation

A. ATCGGCT: This is a complementary DNA strand, not RNA. DNA uses thymine (T), but RNA uses uracil (U).
B. AUCGGCU: RNA transcription pairs A→U, T→A, G→C, and C→G.
DNA: T A G C C G A
RNA: A U C G G C U
C. CGTATTA: Random mismatch, not related to either DNA or RNA pairing for this sequence.
D. GCTATTA: Also incorrect DNA base pairing and not applicable to RNA transcription.

A. lipids B. enzymes C. nucleic acids D. eicosanoids

Correct Answer is B

Explanation

A. lipids: Lipids are not made of peptide bonds; they consist of fatty acids and glycerol.
B. enzymes: Enzymes are proteins, made of amino acids linked by peptide bonds. Denaturation alters the protein's structure and function.
C. nucleic acids: Nucleic acids (DNA/RNA) are composed of nucleotides, not peptide bonds.
D. eicosanoids: Eicosanoids are lipid-derived signaling molecules, not proteins.

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Channels that open due to a compound binding to receptor sites on the extracellular surface of the channels would be considered: non gated ion channels

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Explanation

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