Lsu biology 1201 exam - Study guides, Class notes & Summaries

LSU biology 1201 exam #1 course requirement trial exam solution

LSU Biology 1201 Exam 2 Chapter 7 solution update

LSU Biology 1201 Exam 2 complete questions and answers

why are membranes called phospholipid bilayers? - ANSWER phospholipids have hydrophilic head and hydrophobic tail, hydrophobic face inside of cell making 2 layers what is meant by fluid mosaic? - ANSWER Mosaic of proteins drifting laterally in fluid bilayer of phospholipids how are membranes adjusted for different temperatures? - ANSWER membrane fluidity adjusted by changing the ratio of unsaturated to saturated fatty acids how do the relative amounts of saturated and unsaturated fats chan...

LSU Biology 1201 Exam 2 Chapter 7 solution update

Centromeres - ANSWER area of attachment between two sister chromatids Kinetochores - ANSWER structures of proteins and specific sections of chromosomal DNA at the centromere; point of attachment for microtubules of the spindle Chromatids - ANSWER two copies of duplicated chromosome Spindle apparatus - ANSWER formed from microtubules extending from the two centromeres; as centrosomes move away from each other the microtubules lengthen

LSU Biology 1201 Moroney Exam 1 obvious exam questions with correct answers

SJ Singer and G Nicolson - 1972- proposed that membrane proteins are dispersed, individually inserted into phospholipid bilayer with their hydrophilic regions protruding Fluid Mosaic Model - -behaves like liquid -contains numerous diff. types of proteins -not held in one place, constantly moving Proteins - embedded in the membrane need to have amino acids that interact with water/ repel water to be inside the membrane Membrane Fluidity - -membranes are locked in place -held together by h...

What makes up organisms? - ANSWER matter What is matter? - ANSWER anything that takes up space and has mass What is matter made up of? - ANSWER elements What is an element? - ANSWER a substance that cannot be broken down to other substances by chem reactions

LSU Biology 1201 Final Exam by Moroney questions and answers