Honors Biology Semester 1 Final Latest Questions & Answers Verified 100% Correct!!

What are the steps of the scientific method? - Answer-Observation, question, hypothesis, experiment, analysis, conclusion What are the 7 characteristics of living things? - Answer-CHEMGER: cells, homeostatis, energy, metabolism, growth, evolution, reproduction What is the difference between a molecule, atom, compound, and element? (give an example) - Answer-order in size: atom, element, molecule, compound O O H2O H2O atoms make elements 2+ atoms make molecules 2+ elements make compounds How is an ion different than an atom? (2 reasons) - Answer-an ion has a net charge and has lost or gain electrons How are ionic compounds different than covalent? - Answer-ionic compounds combine a positive and negatively charged atom covalent compounds combine two postively charged atoms How are ionic bonds different than covalent? - Answer-ionic bonds steal electrons and covalent bonds share electrons On a pH scale, where do acids fall? - Answer-1-7 On a pH scale, where do bases fall? - Answer-7-14 On a pH scale, where do nuetral items fall? - Answer-7 What is an example of a common acid? - Answer-lemon juice, vinegar, apple juiceWhat is an example of a common base? - Answer-ammonia What is an example of a common neutral item? - Answer-water What is the ratio of carbon, hydrogen and oxygen in carbohydrates? - Answer-C H2 O (1-2-1) What is the ration of carbon, hydrogen and oxygen in lipids? - Answer-C H(3+) O (1-2-1) How do amino acid (protein) formulas differ from carbs or lipids or nucleic acids? - Answer-the have an NH4 What do nucleic acids have that other organic compounds do not? - Answer-PO4 What are the four organic compounds? - Answer-carbohydrates, lipids, proteins and nucleic acids Which of the following is an organic compounds? a) Ca3 (PO4 )2 b)H2 O c)CO2 d) C6 H12 O6 - Answer-d) C6 H12 O6 What does most nucleic acid look like? - Answer-double stranded or double helix