Missed BIO questions Flashcards
The Primary transmitter of the Parasympathetic nervous system.
Acetylcholine
Primary neurotransmitters of the sympathetic nervous system.
Norepinephrine and epinephrine
Describe the sympathetic nervous system
Fight of Flight
Describe the parasympathetic nervous system
Rest, and digest
The raw materials in earth’s primordial soup did not include
Methanol
Earth’s primordial environment included simple inorganic and organic compounds such as….
Salts Methane Ammonia Hydrogen Water Phosphorus
BP drops as it flows from artery to capillary to do…
Diameter of artery, and the total cross secional area increases
Sarcomere: A band
Contains entire length of thick filaments and any thin actin filaments that overlap with thick filaments
Sarcomere: I band
Located between A bands.
Composed of thin filaments only.
Shortens with contraction.
Sarcomere: H zone
Located at the center of the A band and contains thick filaments only
Shortens with contraction.
Sarcomere: The Z-Lines
Define boundaries of sarcomere. Anchor thin filaments.They draw closer together with contraction.
What are Acoelomates?
Organisms lacking an internal body cavity.
eg… Aschelminthes, Platyhelminthes, Porifera, and Coelenterates.
Group of invertebrates that possess a coelom, defined nervous, circulatory and excretory system.
Annelida
What are functions of smooth endoplasmic reticulum?
No Ribosomes, Detoxification of poisons. Lipid synthesis.
