Bio 120 - Study guides, Class notes & Summaries

Bio 120 Chapter 1 2024 QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED Biologythe scientific study of life Evolutionprocess of change over time~ change in gene frequency overtime... measured in generations What are the 5 unifying themes of biology?organization, information, energy and matter, interactions, evolution Theme: Organization-Living things are organized all living things share certain characteristics -Both living and nonliving things are ultimately composed of atom...

Exam 1: BIO1201/ BIO 1201 Study Guide (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: Nucleolus: nonmembranous structure involved in production of ribosomes; a nucleus has one or more nucleoli Q: Chromatin Answer: material consisting of DNA and proteins; visible in a dividing cell as individual condensed chromosomes Q: cell wall Answer: outer layer that maintains cell's shape and protects cell from mechanical damage; ma...

Final Exam: BIO1201/ BIO 1201 (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: Where does the most energy production occur in cellular respiration? Answer: Oxidative phosphorylation Q: What are the properties of a proton compared to neutrons and electrons? Answer: Heavy, positive Q: Which molecules can cross the membrane the easiest? Answer: Nonpolar, small Q: Which isomer has a carbon-carbon double bond? ...

Exam 2: BIO1201/ BIO 1201 Review (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: what is active transport? Answer: work must me done; must use supplied energy; employs carrier molecule Q: for which transport processes are carrier molecules involved? Answer: facilitated diffusion and active transport Q: which transport processes require the input of additional energy? Answer: active transport Q: what is a semi...

Exam 2: BIO1201/ BIO 1201 Study Guide (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: transport proteins allow passage of hydrophilic substances across the membrane Q: carrier proteins Answer: bind to molecules and change shape to shuttle them across the membrane Q: passive transport Answer: the diffusion of a substance across a membrane with no energy investment Q: Diffusuion Answer: Spreading out of partic...

Micro Bio 120 Exam 1 Questions with Correct Answers 100% Solved True or False: The plasma membrane and most other membranes are composed of a lipid bi-layer in which integral proteins are buried. True True or False: Procaryotic cells are usually smaller than eucaryotic cells. True True or False: Most procaryotes have strong cell walls that give them shape. True The significance of the plasma membrane is that: A) It selectively allows some molecules to pass into the organism B) It pr...

LSU Bio 1201 exam 2 Questions and Answers 100% Pass why are membranes called phospholipid bilayers? phospholipids have hydrophilic head and hydrophobic tail, hydrophobic face inside of cell making 2 layers what is meant by fluid mosaic? Mosaic of proteins drifting laterally in fluid bilayer of phospholipids how are membranes adjusted for different temperatures? membrane fluidity adjusted by changing the ratio of unsaturated to saturated fatty acids how do the relative amounts o...

BIO 1201 - MORONEY - EXAM 1 Questions With 100% Correct Answers Which statement about ALL living things is true? a. all living things are capable of sight b. all living things have a nervous system of some sort c. all living things are capable of reproduction d. all of the above e. non of the above C Compared to 40^K, the isotope 39^K has a. a different atomic number b. one less neutron c. one less proton d. one less electron e. one less proton and one less electron B ...

Bio 1201 exam 2 Gregg latest update graded A+ transport proteins are responsible for controlling passage across the membrane fluid mosaic model The membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids fatty acid tails nonpolar, hydrophobic fatty acid heads hydrophilic, polar periphial proteins bound to the surface of the membrane integral proteins penetrate the hydrophobic core (ones that span the membrane are transmembrane protiens How ...

BIO 120 - CMB 155 Chapters 1-5 2024 QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED What is a macromolecule? molecules made from smaller joining subunits What are the building blocks of macromolecules? monomers How are macromolecules synthesized (made)? dehydration synthesis Dehydration Synthesis A chemical reaction in which two molecules covalently bond to each other with the removal of a water molecule. How are macromolecules/polymers broken down? Hydrolysis Hydrolysis Brea...