BIO 101 Exam Questions with 100% Correct Answers

BIO 101 Exam Questions with 100% Correct Answers Amino Acids - - amino group, carboxyl group, side group - 2 carbons, 1 nitrogen - middle C always has a side group - side group defines amino acid - structure: simple hydrogen atom (gylcine) to complex carbon skeleton with attached side group - join 2 amino acids with a dehydration process - form 2 amino acids (peptide bond) - form 3 amino acids (tripeptide bond) - form many amnio acids (polypeptide bond) - break apart amino acids with hydrolysis - 10 amino acids naturally, other 10 come from food/proteins Animal Cells - - plasma (cell membrane) - nucleus -cytoplasm Are viruses alive? - - depends on what you argue - relies on a host cell to reproduce Atoms - - fundamental building blocks of life - made up of protons, electrons, neutrons - carbon is most important - building block of life - 4 elements make up almost everything (carbon, oxygen, nitrogen, hydrogen) - covalent bond (single); four make up most common form with carbon and hydrogen - macromolecule: biological molecules that are large - made up of C, O, H, N strung together - 4 macromolecules in our body: (carbs, proteins, lipids/ fats, nucleic acids) - "organic"- term for type of chemical dealing with carbon Bean Beetle Lab - - learn how to determine if alive or dead - if alive, beetles should be giving off carbon dioxide - if dead, bean beetles may be giving off CO2 but only because the decomposition process - CO2 measured in ppm - calculate amount per bean beetle x (ppm)/ number of bb = ppm/bb every 15 mins = [x / # of bb] / 15