PSYC 111 Chapter Notes - Chapter 3: Semipermeable Membrane, Extracellular Fluid, Membrane Potential
Document Summary
Chapter 3: human genetics, studied in order to better understand basis that contributes to certain behaviors, sickle cell anemia- genetic condition in which red blood cells, which are normally round, take on a crescent-like shape. Changed shape affects how they function: can clog blood vessels, block blood flow, leading to high fever, swelling, and tissue damage, genetic variation, geneti(cid:272) differen(cid:272)e (cid:271)et(cid:449)een indi(cid:448)iduals, (cid:272)ontri(cid:271)utes to spe(cid:272)ies adaptation to its environment. Egg and sperm each contain 23 chromosomes: chromosomes are long strings of genetic material known as dna, dna-- helix-shaped molecule made up of nucleotide base pairs. Sequences of dna make up genes: genotype- genetic makeup of that individual. Ends at the multiple terminal buttons: terminal buttons contain synaptic vesicles that house neurotransmitters, chemical messengers of the nervous system, myelin sheath sometimes coats axon and acts as an insulator, increasing the speed at which the signal travels.
