1. A photoautotroph is an organism that

                             -Is a decomposer.

                             -Must obtain organic compounds for its carbon needs.

                             -Gets energy from sunlight.

                             -Gets energy by oxidizing chemical compounds.

                             -Does not need a carbon source.

2. An organism that is harmed by the presence of oxygen in theenvironment is a(n)

                             -Aerobe.

                             -Obligate aerobe.

                             -Facultative anaerobe.

                             -Microaerophilic.

                             -obligate anaerobe

3. Formation of peptide bonds between amino acids to build apolypeptide would be called

                             -Anabolism.

                             -Phosphorylation.

                             -Fermentation.

                             -Exergonic.

                             -Glycolysis.

4. Each of the following are denaturing agents except

                             -High temperature.

                             -Low temperature.

                             -High pH.

                             -Low pH.

                             -All of the choices are correct.

5. An organism that uses CO2 for its carbon needs would becalled a(n)

                             -Heterotroph.

                             -Autotroph.

                             - Chemoheterotroph

                             -Saprobe.

                             - Halotroph

6. During replication, each parent DNA strand serves as a _____for synthesis of new DNA strands.

                             -copy point

                             -template

                             -comparison molecule

                             -scaffold

                             -reservoir

7. In bacterial cells, when glucose is completely oxidized byall the pathways of aerobic cellular respiration, what is themaximum number of ATP generated?

                             -2 ATP

                             -3 ATP

                             -24 ATP

                             -42 ATP

                             -38 ATP

8. Replication of DNA begins at a(n) ______ rich area.

                             -Guanine-cytosine.

                             -Uracil-adenine.

                             -Adenine-thymine.

                             -Adenine-cytosine.

                             -Guanine-adenine.

9. Which of the following is not associated with a bacterialribosome?

                             -is a 70S

                             -has a peptide (P) site

                             -has an exit site

                             -small unit provides the enzymes for making peptide bonds

                             -has an amino acid (A) site

10. Human pathogens fall into the group

                             -Psychrophiles.

                             -Thermophiles.

                             -Halophiles.

                             -Mesophiles.

                             -Acidophiles.

11. A sequence of bases on a gene that does not code for proteinis called a(n)

                             -Promoter

                             -Operator

                             -Operon

                             -Exon

                             -Intron

12. A mutation that changes a normal codon to a stop codon iscalled a

                             -Point mutation.

                             -Silent mutation.

                             -Back mutation.

                             -Missense mutation.

                             -Nonsense mutation.

13. All of the following are true of enzymesexcept  

-Enzymes increase the rate of a chemicalreaction.                  

-Enzymes are not part of the products of a chemicalreaction.                            

-Enzymes create a chemicalreaction.                         

-Enzymes are not consumed in a chemical reaction

14. A frame shift is caused by ______ mutations.

                             -Missense and insertion

                             -Missense and nonsense

                             -Nonsense and deletion

                             -Deletion and insertion

                             -Insertion and nonsense

15. What is the definition of Generation Time

16. Vitamins are important components of coenzymes

True

False

17. DNA replication proceeds in one direction around thebacterial chromosome

True

False

18. Enzymes that hydrolyze a peptide bond are calledligases.

True

False

19. Transposons can change the genome

True

False

20. Ribosomes are composed of ribosomal RNA and protein.

True

False

21. The jumping of a gene from one location to another is doneby transposons.

True

False

22. Transformation is a type of horizontal gene transfer

True

False

23. Bacterial conjugation involves a donor cell with a plasmidthat synthesizes a pilus.

True

False

24. Transcription occurs on a ribosome in the cytoplasm.

True

False

25. Full induction of the lactose operon requires lactosepresent without glucose.

True

False

26. A microorganism that does not have catalase or superoxidedismutase would find it difficult to live in an environment with_______

27. An organism that requires a small amount of oxygen but won'tgrow at normal atmospheric levels is a __________

28. A permanent, inheritable change in the genetic informationis called a _________

29. For DNA replication, a primer of ____ is needed at theorigin of nucleotide addition.

30. An organism that can exist in both oxygen and oxygen lessenvironments is a ____________________.

31. The property of organisms to integrate catabolic andanabolic pathways to improve cell efficiency is called ______

32. If the mRNA codon for alanine is GCA, then the correctanticodon would be ___.

33. An example of inducible operon is the _____ operon.

34. Reverse transcriptase is used to make ______ from an RNAtemplate.

35. Environmental factors that influence microbial growthare            (all that apply)    

-temperature                     

-gases                  

-pH                       

-osmotic                             

-pressure                            

-radiation                           

-hydrostatic                       

-pressure

36. The three main types of symbiosis are ____, _____, and_____.                 

-amphibolism, commensalism andparasitism.                        

-anabolism, catabolism andmetabolism.                   

-mutualism, commensalism andparasitism.             

-catabolism, metabolism, and parasitism.

37. The two general categories of metabolism are ____ and____.                    

-anabolism andcatabolism.                          

-mutualism andparasitism.                          

-commensalism andparasitism                    

-anabolism and parasitism.

38. ______ refers to the process of one bacterial cell becomingtwo.

39. At the ____ growth phase, the population enters a periodduring which the rates of cell birth and cell death are more orless equal.