Wvu biology 115 exam - Study guides, Class notes & Summaries

Biology 115 Exam 1 (Dr. Barry WVU) Latest Update Graded A+ Latin word for knowledge Science Created by Aristotle 384-322 BC and Alhazen 965-1039 AD Scientific Method An explanation for a very general class of phenomena or observations that are supported by a wide body of evidence scientific theory What are organisms made of? cell theory Genetics inherited from parents chromosome theory of inheritance Where do organisms come from? Theory of Evolutions a proposed explanati...

Biology 115 Exam 3 (WVU) Questions and Answers Already Passed In which cell types do you find mitochondria? prokaryotes only eukaryotes only animals only plants only all cells eukaryotes only Which of the following statements about chromosomes is TRUE? Each chromosome contains one molecule of DNA. A chromosome contains DNA and proteins that help package the DNA. A chromosome only contains DNA Eukaryotic chromosomes are circular. A chromosome contains DNA and prote...

Biology 115 Exam 2 WVU Young 100% Correct control group the group that is not exposed to the treatment independent variable variable that is manipulated dependent variable measured variable constant A value that does not change Dihydrofolate reductase catalyzes the reaction that breaks down folic acid into cofactors to create nucleotides. The reaction is inhibited by methotrexate (which resembles folic acid, but cannot be catalyzed by dihydrofolate reductase). Increasing the ...

Biology 115 Exam 3 WVU Latest Update Graded A+ Meiosis DNA replication prior to cell division Sister Chromatids are two copies of the same DNA(have the exact same sequence) Helicase Breaks H-bonds to open the replication bubble Topoisomerase Breaks a single covalent bond ahead of the replication bubble Single-stranded DNA binding proteins Prevents the re-annealing of a single stranded DNA DNA Polymerase III recognized double stranded DNA/RNA hybrid and synthesized DNA from ...

Biology 115 WVU Exam 2 Questions and Answers Already Passed Select all that are components of cell theory -Each cell can regulate its internal conditions (homeostasis) -All living things are made from one or more cells -Homeostasis at the level of the tissue, organ, organ system and organism reflects the combined and coordinated actions of many cells -The cell is the basic unit of life -Cells are produced directly from the growth and division of other cells In order to carry out t...

All cells have... ? - Answer proteins, nucleic acids, carbohydrates, plasma membrane Prokaryote - Answer A unicellular organism that lacks a nucleus and membrane bound organelles Eukaryote - Answer A cell that contains a nucleus and membrane bound organelles Which of these statements describes a major difference between prokaryotic cells and eukaryotic cells? - Answer Eukaryotic cells tend to have much more extensive inner membrane systems and larger numbers of intracellular organelles tha...

Monomers that make up lipids - Answer Glycerol & 3 Fatty Acids Bonds that lipids together - Answer Ester Bonds Monomers that make up carbohydrates - Answer Monosacchrides Bonds that hold monosacchrides together - Answer Glycosidic Bonds Monomers that make up proteins - Answer Amino Acids Bonds that hold amino acids together - Answer Peptide Bonds Monomers that make up nucleic acids - Answer Nucleotide

What is the Hershey-Chase experiment? - Answer - It resulted with the idea that DNA, not protein must be the hereditary material. - DNA contained all the information for life's complexity semiconservative replication - Answer two strands separate, make template for new strand conservative replication - Answer remains the same, makes new copy dispersive replication - Answer division of DNA vertically what is the actual way to replicate DNA? - Answer semiconservative DNA runs _________ - A...

Hypothesis structure - Answer if, then, because Control Group - Answer Group you don't change because you know the expected outcome Experimental Group - Answer Group you change to see the outcome Independent Variable - Answer difference between the control and experimental group Dependent Variable - Answer The outcome and what you're recording Element - Answer substance that cannot be broken down further 4 main elements of life - Answer carbon, oxygen, hydrogen, nitrogen