Exam One Flashcards
What is transcription?
Transcription is the process by which DNA is converted into RNA.
Which cell organelle is important for protein packaging?
The golgi apparatus is important for protein packaging.
Which cellular energy producing process yields the most ATP?
Oxidative phosphorylation produces the most ATP.
Which ion is important for initiating an action potential?
Sodium is important for initiating an action potential.
What are the resident immune cells for the brain?
The microglia are the resident immune cells for the brain.
Compare and contrast the parasympathetic and the sympathetic nervous system.
The parasympathetic nervous system is responsible for contracting the pupils, stimulating peristalsis, and slowing the respiration rate while the sympathetic nervous system raises the heart rate, dilates the pupils and slows down peristalsis.
Which amino acid is the precursor for dopamine>
Tyrosine is the amino acid precursor for dopamine.
What is the major component of the thick filaments of skeletal muscle?
Myosin is the major component of the thick filaments of skeletal muscle.
What are the major components of the thin filaments?
The thin filaments are composed of actin, troponin, and tropomyosin..
When is ATP required for muscle contraction/relaxation?
ATP is required to allow the release of the myosin head group from actin causing the muscles to relax
What is a sarcomere?
A sarcomere is the contractile unit in a muscle cell.
