Bio 311 - Study guides, Class notes & Summaries

This is a document that contains all my lecture notes in Debra Hansen's Introduction to Biology course (BIO 311C) at UT Austin

(ASU Online) BIO 311 Biology and Society Comprehensive Midterm Exam 2024(ASU Online) BIO 311 Biology and Society Comprehensive Midterm Exam 2024(ASU Online) BIO 311 Biology and Society Comprehensive Midterm Exam 2024

Bio 311D Exam 2 Dr English To have no change in allele frequencies, you'll need... (H-W assumptions) - 1. No mutations 2. Random mating 3. no heritable advantages 4. enormous population 5. No incoming/outgoing individuals Evolution - change is proportion of alleles in a population Descent with modification - 1. organisms look different today 2. organisms look different than their predecessors 3. that change in appearance is -heritable -adaptive Natural selection means - ...

What happens when a suitable substrate binds to an enzyme? - ANSWER-The active site amino acids bond with the substrate Cyanide binds to cytochrome oxidase at a site where the substrate oxygen would normally bind. This is an example of - ANSWER-competitive inhibition an example of a catabolic reaction is - ANSWER-lactate fermentation what is an anabolic process that is endergonic and endothermic? - ANSWER-CH₄ +2O₂ → CO₂ + 2H₂O ATP yields 7.3 kcal/mol of free energy and it i...

four biological molecules - Answer carbohydrates, lipids, proteins, nucleic acids elements in carbohydrates - Answer carbon, hydrogen, oxygen CH2O elements in lipids - Answer carbon, hydrogen, oxygen, phosphorous elements in proteins - Answer carbon, hydrogen, oxygen, nitrogen, sulfur carbon, hydrogen, oxygen, nitrogen, phosphorous - Answer elements in nucleic acids functional groups in carbohydrates - Answer hydroxyl and carbonyl functional groups in lipids ...

4. Which of the following sequence is the correct one for replicating DNA? Not all the steps are included. I. RNA Primers anneal to the DNA template II. ssDNA binding proteins bind to stabilize single strand DNA after helicase unwinds it. III. RNA primers are removed and new DNA strand is made by DNA polymerase IIV. DNA ligase connects the DNA fragments V. Complementary copy of DNA is made by DNA polymerase III A) I, II, III, IV, V B) II, III, IV, I, V C) V, I, III, II, IV D) II, I, V, ...

Prokaryotic Cell - Answer 1. No nucleus 2. DNA in the nucleoid region 3. No proteins are attached to DNA 4. No endomembrane system 5. No organelles 6. Cell size small (1-10 μm) Eukaryotic Cell - Answer 1. True nuclei 2. DNA within nucleus 3. Proteins (histones) are attached to DNA 4. Vast endomembrane system 5. Membrane-bound organelles such as mitochondria and chloroplasts 6. Larger cell size (10-100 μm) Prensent in animal cells only - Answer -Centrosomes w/ centriole...

operons consist of: - Answer promoter, operator, coordinately related cluster of genes whose products function in a common pathway are human genes organized in operons? - Answer no responses caused by epinephrine binding to receptor - Answer --response may be relaxation of muscles through a G-protein pathway --other triggers contraction of muscles by opening calcium ion channels insulin receptor is what type of receptor? - Answer tyrosine kinase where is tRNA made? - Ans...

What happens during G1? - Answer First growth phase; cell synthesizes proteins and produces cytoplasmic organelles What happens during the S phase? - Answer Synthesis; continues to grow as it copies chromosomes What happens during G2? - Answer Second growth phase; cell completes preparation needed to divide and continues basic life of the cell What happens during mitosis? - Answer Subdivided into prophase, metaphase, anaphase, and telophase; nuclear division What happens ...