Micro Unit Test #1
Who was the first to observe microorganisms with a microscope? Weizmann van Leeuwenhoek Pasteur Koch Hooke
van Leeuwenhoek
Which of the following pairs is mismatched Jenner-vaccines van Leeuwenhoek-germ theory Hooke-cell theory Lister-aseptic surgery Pasteur-fermentation
van Leeuwenhoek-germ theory
Which of the following is NOT a domain in the three-domain system Eukarya Bacteria Animalia Archaea
Animalia
Which one of the following organisms lacks cell walls? Bacteria Animalia Plantae Fungi
Animalia
Who proved that microorganisms cause disease? van Leeuwenhoek Semmelweis Koch Fleming Pasteur
Koch
Which of the following pairs is mismatched? Koch-aseptic surgery Pasteur-proof of biogenesis Jenner-vaccination Ehrlich-chemotherapy
Koch-Aseptic surgery
Which of the following CANNOT be made by using recombinant DNA technology Human hormones Pharmaceutical drugs Pest-resistant crops Life Vaccine
Life
Which type of molecule contains the alcohol glycerol? Carbohydrate Lipid Protein Nucleic Acid
Lipid
Regarding Pasteur's experiments with the S-neck flask, which of the following statements is true? Any possibility of contamination was removed There was a food source involved All microorganisms were killed before beginning There was air involved All of the above
All of the above
Which type of molecule is composed of (CH2O) units Carbohydrate Protein Lipid Nucleic Acid
Carbohydrate
Which of the following statements about biofilms is false? Biofilms in pipes block the flow of water Biofilms in your body protect mucous membranes from harmful microbes Biofilms on rocks provide food for animals Biofilms on medican implants cause infections Compared to free-living bacteria, biofilms are more sensitive to antibiotics
Compared to free living bacteria, biofilms are more sensitive to antibiotics
What is the type of bond between carbon, hydrogen, and oxygen atoms in organic molecules? Ionic Covalent Hydrogen
Covalent
Which one of the following does not belong with the others? Archaea Eukarya Fungi Bacteria
Fungi
You are observing a cell through a microscope and note that it has no apparent nucleus. You conclude that it most likely Moves by pseudopods Is part of a multicellular animal Has a cellulose cell wall Has a peptidoglyen cell wall Is a plant cell
Has a peptidoglycan cell wall
Who observed cells in plant material Pasteur Koch van Leeuwenhoek Lister Hooke
Hooke
Which of the following is the type of bond between molecules of water in a beaker of water? Covalent Ionic Hydrogen
Hydrogen
What is the type of bond between ions in salt? Hydrogen Ionic Covalent
Ionic
Which of the following is the type of bond holding K+ and I- ions in KI? Ionic Hydrogen Covalent
Ionic
Which of the following statements about the atom 12/6C is false It has 6 protons in its nucleus Its atomic number is 6 It has 6 electrons orbiting the nucleus It has 12 neutrons in its nucleus Its atomic weight is 12
It has 12 neutrons in its nucleus
Which of the following pairs is mismatched? Penicillin-antibiotic Normal macrobiotics-harmful Chemotherapy-treatment of disease Pathogen-disease causing Vaccine-a preparation of microorganisms
Normal macrobiotics-harmful
Structurally ATP is most like which type of molecule? Carbohydrate Protein Lipid Nucleic Acid
Nucleic Acid
What do genes consist of? Nucleic Acids Proteins Carbohydrates Lipids
Nucleic Acids
Who disproved the theory of spontaneous generation? Pasteur Hooke Koch van Leeuwenhoek Virchow
Pasteur
Which molecule is composed of a chain of amino acids? Lipid Protein Carbohydrate Nucleic Acid
Protein
Which type of molecule contains -NH2 groups Carbohydrate Protein Lipid Nucleic Acid
Protein
Which of the following is a scientific name? Group A streptococcus Flesh-eating bacteria streptococcus pyogenes IGAS
streptococcus pyogenes
