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Name: _______________________ Bi 234 Quiz Wk1 -Please select the best answer or fill in the blank. Good luck! 1) Question 1-7 are the same as the first quiz. Give me 3 examples of eukaryotic cells, each from a different kingdom. a. b. c. 2) What are two differences between a eukaryotic and a prokaryotic cell? a. b. 3) Which of the following lists the structures from largest to smallest? a. eukaryotic cells, mitochondria, viruses, proteins b. eukaryotic cells, mitochondria, proteins, viruses c. mitochondria, eukaryotic cells, proteins, viruses d. viruses, eukaryotic cells, proteins, mitochondria For the next two questions choose from one of the following a. nucleotide b. fatty acid c. amino acid d. monosaccharide 4) What monomer is strung together to generate starch? ___ 5) Peptide bonds are formed between which monomers? ___ 6) Why are archaebacteria and eubacteria in the same superkingdom but in different domains? 7) Name at least 3 differences between the cell wall and cell membrane of archaebacteria and eubacteria? a. b. c. 8) Name at least 3 similarities between archaebacteria and eubacteria? a. b. c. 9) On the back of this page, draw a cross section of a eubacterial cell and label the following: capsule (or glycocalyx), plasma membrane, cell wall, cytoplasm, DNA. 10) A crazy microbiology teacher shows you a cell under the microscope that is 3000 micrometers in diameter. How many millimeters is it? For the next two questions choose from one of the following a. primary structure b. secondary structure c. tertiary structure d. quaternary structure 11) alpha helices or beta sheets in a polypeptide are held together by hydrogen bonding between carboxyl and nearby amino groups is? ___ 12) the linear order of amino acids in a polypeptide is? ___ 13) You are using the 40x objective lens. What is the total magnification on most microscopes and all of our lab microscopes? a. 40x b. 80x c. 200x d. 400x e. 800x 14) There are at least 7 ways to improve your image under a microscope. Name 2. a. b. 15) Name at least 2 ways to make enzymes not function properly. a. b. 16) Do most humans purposefully make the enzymes of bacteria and mold not function properly? If not, why not? If so, name an example. 17) What is one way that a bacterium can negate a competitive inhibitor to one of its enzymes? a. decrease the substrate concentration b. increase the substrate concentration c. increase the bacteria concentration d. decrease the enzyme concentration 18) DNA consists of how many different nucleotides a. 2 b. 4 c. 8 d. 20 19) Adenine (A) pairs with which base? 20) What lipids are found in eubacteria cell membranes? a. fats b. triglycerides c. phospholipids d. cholesterol 21) You go into the doctors because of an infection. Your doctor thinks it is an archaebacterial infection. If so, what should you do for it? a. pray an awful lot because their is not much else you can do b. try heating yourself as much as you can c. take some penicillin d. take lots of vitamins 22) There are a few organisms that microbiologists study that are not microbes. Name one. 23) Briefly, discuss or draw the differences between a Gram+ and Gram- cell. (Use the back of this page.) 24) Peptidoglycan is found in what cells? a. animal b. plant c. archaebacteria d. eubacteria e. protist 25) Why does Penicillin not act well against Gram negative cells? a. because it only acts on actively growing cells and Gram- cells are not all actively growing. b. because it works against the cell wall and Gram- cells have a thin cell wall. c. because it cannot get through the outer membrane of Gram- cells. d. because Gram- cells synthesize an enzyme that degrades the antibiotic. 26) When scientists proved that pathogens cause infectious disease, this was known as a. Koch’s postulates b. the pathogen theory of disease c. the theory of spontaneous generation d. the germ theory of disease 27) Flagella allow eubacteria to a. find food b. to attach to things c. move d. mate and reproduce 28) transport proteins are found in a. the cytoplasm b. the cell wall c. the cell membrane d. the nucleoplasm