BACE Practice Test 2 Questions and Answers Rated A+

BACE Practice Test 2 Questions and Answers Rated A+ Complimentary base pairing between two DNA strands is due to the formation of hydrogen bonds Cellulose is an important raw material for textiles and a variety of other industries. Which of the following is a function of polysaccharides in the cell? Providing structure and energy storage within cells Lipids are composed mainly of which of the following atoms? carbon and hydrogen T/F: A solute is the dissolved matter in a solution. true Process which uses oxygen as a raw material aerobic respiration Process which releases carbon dioxide and ethyl alcohol anaerobic respiration Process by which glucose is utilized by a cell Both Aerobic and Anaerobic Respiration Process which uses carbon dioxide as a raw material Neither Aerobic or Anaerobic Respiration Why are enzymes necessary in living organisms? Enzymes increase the rate of chemical reactions which would otherwise occur too slowly to sustain life. Which of the following affects the rate of a chemical reaction? Concentration, Heat, Presence of a Catalyst Made of four nitrogenous bases all DNA Contained in a nucleus Eukaryotic DNA Long, circular DNA with several thousand genes Prokaryotic DNA Small, circular DNA floating in the cytoplasm Plasmid Double helix structure of repeating nucleotides All DNA Linear, very long pieces of DNA with many thousands of genes Eukaryotic DNA When DNA replicates, each original strand of DNA serves as a template for a new strand. What type of replication is this? Semi-conservative replication Transcription begins when RNA polymerase binds to which area on the DNA strand? Promoter Many enzymes used in biotechnology applications occur naturally within the cell. Which enzyme is involved in DNA replication? DNA Polymerase Where does translation take place in prokaryotes? ribosomes If a bacterial cell did not contain restriction enzymes, which of the following would be likely to occur? The cell would be easily infected and lysed by bacteriophages. Cell theory states: All life forms are made from one or more cells. Cells only arise from pre-existing cells. The cell is the smallest form of life. What happens at the ribosome? protein synthesis Which type of cell could use sugar to produce energy in an oxygen-deprived environment? bacterial, animal (muscle), yeast After mitotic division, how many chromosomes do daughter cells have compared with the parent cell? the same number Which of the following is an accurate description of Gram positive bacteria after Gram staining? Purple, because gram positive bacteria have a thick layer of peptidoglycan in the cell wall. A technician performing an ELISA uses a primary antibody with a mouse IgG2a isotype to analyze patient blood samples. Which of the following secondary antibodies would be the most appropriate to use in the assay? Rabbit anti-mouse Which of the following best defines the term "epitope"? The part of an antigen that is recognized by the immune system Genomics involves the study of Mapping the location of genes in the genome Comparing genomes between different organisms Studying