Which of the Following Statements Are True of the Sliding

question 144

Multiple Choice

Which of the following statements are true of the sliding filament mechanism? (Read carefully and select all of the correct statements.)

• A)The calcium ions released from the sarcolemma bond to troponin.
• B)The sarcoplasmic reticulum inhibits contraction until a nerve impulse arrives.
• C)With calcium ions, troponin shifts tropomyosin away from actin.
• D)Myosin filaments pull actin filaments toward the center of the sarcomere.
• E)Myosin releases the energy from ATP.
• F)When a muscle fiber contracts, all of its sarcomeres contract.

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Definitions:

mRNA

A category of RNA known as messenger RNA transfers the genetic blueprint from DNA to the ribosome, dictating the sequence of amino acids in proteins produced through gene expression.

Promoter

A specific region of DNA that initiates transcription of a particular gene, playing a crucial role in gene expression.

RNA Polymerases

Enzymes responsible for catalyzing the synthesis of RNA from DNA templates, playing a crucial role in gene expression.

Transcription

The process in which the DNA sequence of a gene is copied into RNA, leading to protein synthesis in living organisms.