Bio 120 Study guides, Class notes & Summaries

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...

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...

Bio 181 practice Exams 120 Questions with Verified Answers Which of the following are NOT effective for mastering new ideas and forming long-term memories that can be accessed and used months or even years later? (choose ALL) A. Concentrating intense studying to the hours before an exam. B. sleep C. reading and re-reading the textbook chapters and notes several times D. practicing remembering ideas and vocabulary through self-quizzing E. elaboration: putting ideas in your own words and...

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...

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? ...

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...

BIO 120 Lab Exam 2 Questions and Answers (Updated&Revised). LAB EXAM 2 LAB 3 The Skeleton ● Axial Skeleton (80 bones) ○ Found at the center of gravity, the torso, consists of the skull, the sternum, and vertebral column ● Appendicular Skeleton (126 bones) ○ Consists of the limb and the pelvic and pectoral girdles Cartilage ● Mostly water with differing amounts of elastic, reticular, or collagen fibers ● Outer covering of perichondrium (growth and repair) ● Has no nervou...

BIO 120 Skeletal System QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED How many bones are in the body? 206 bones axial skeleton long axis (skull, vertebral column, rib cage) appendicular skeleton bones of the shoulder, pelvis, and upper and lower extremities What is the purpose of the axial skeleton? Protection of internal organs; supports and carries other body parts What is the purpose of the appendicular skeleton? Involved in locomotion and manipulation of the environment...

BIO 120 Exam 1 Questions with Complete Solutions 2024 Pasteur's experiment provided conclusive evidence to reject the spontaneous generation hypothesis, which states that cells arise from nonliving material. As a consequence, his results supported the all-cells-from-cells hypothesis. Which element of Pasteur's experimental design was most important and why? His two treatments differed only in the shape of the flask, resulting in exposure of only one of the treatments to preexisting ...

Bio 120 - Exam 1 Questions with Correct Answers Graded A+ Synapomorphy A shared derived character or trait state that distinguishes a clade from the other organisms. Analagous Having characteristics that are similar because of convergent evolution, not homology. Homologous Similarity in characteristics resulting from a shared ancestry. Porifera Sponges No true tissues Mostly marine, aquatic Asymmetric 2 germ layers (endoderm and ectoderm) No coelom Sessile Sessile Attached direc...