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Stack #155072
Microbiology Test #1 Review Dr. Bharathi
| Question | Answer |
|---|---|
| What are found in pseudomurien? | Archea |
| What are the characteristics of a prokaryotic cell? | No nucleus |
| What is not found in mitochondria? | Cell Walls |
| What part of a cell is not for food storage? | Centrosome |
| What has no cellulose? | A bacterial cell wall |
| What is not sensitive to penicillin? | bacterial cell walls |
| What is not a part of active transport? | cell wall |
| What cells can survive and keep growing? | Endospores |
| What does facliteted diffusion require? | Transporter proteins |
| What is a force with which a solvent moves across a semi-permeable membrane from high to low concentration? | Osmotic pressure |
| What does not maintain the cell shape? | Plasma membrane |
| Where are phospholipids in eukaryotic cell? | Around the organelles and plasma membrane. |
| What is a structure not found in a prokaryotic cell? | cilia |
| What has several layers of peptidoglycan? (PPGY) | Gram positve cell |
| What has cell walls? What lacks cell walls? | Fungi; Protoplasts, animal cells, L forms, mycoplasma |
| Pili are used for what?Fimbriae are used for what? | TransferAttachment |
| 10% NaCl with penicillin are what?What does the cell wall do? | Bacterial cellPlasmolyze |
| 70S Ribosomes are in what?80S Ribosomes are in what? | Prokaryote cellsEukaryote cells |
| Bacteria has photosynthetic pigments called what? | Chromatophores |
| What resembles a prokaryotic cell? | Mitochondrion |
| Total magnifications with 10x ocular and 45x objecive lens is what? | 450x |
| What is the Gram reaction of acid bacteria? | Gram negative |
| How is the resolution of a microscope improved? | Changing the wavelength of light |
| What prevents crystal violet from leaving the cell? | Mordant |
| What has phospholipids in the plasma membrane? | Prokaryotic cell |
| What will happen to bacteria in distilled water with lysozyme? | Osmotic lysis |
| What kind of microscope doe not use light? | Electron |
| Image appears on a screen and not on a lens in what? | Electron microscope |
| What does not respond to negative stain? | Gram negative bacteria |
| What is purple after the counterstain? | Gram positive bacteria |
| What kind of microscope uses an ultra violet light source? | Fluorescence microscope |
| Who is not conected with virology? | Weizmann |
| What is genetic engineering not used to do? | To make life |
| What has a specific epithet? | Escherichia coli |
| How does sourdough bread differ from regular bread? | Acids from lactobacillus |
| What does multicellular fungus do? | Absorbs organic material |
| Not all groups of viruses contain what? | DNA |
| Who observed cells in plant cells? | Hooke |
| What has no rigid cell walls? | Protozoa |
| What cannot reproduce outside host cells? | Viruses |
| Viruses contain what genetic material?How do they reproduce? | RNAIn cells |
| What kind is not harmful? | Normal microbiota |
| What cannot reproduce by themselves? | Viruses |
| What lacks peptidoglycan? | Archea |
| Who first observed microorganisms with a microscope? | Van Leeuwenhoek |
| Who studies the immune mechanism or defense inan organism? | Immunologist |
| What is not a 3 domain kingdom? | Animalia |
| Who disproved the theory of spontaneous generation? | Koch |
| What cell has no nucleus but has peptidoglycan cell wall? | bacteria |
| Who proved microorganisms cause disease? | Koch |
| What moves by flagella and is a nucleted green cell? | Algae |
| What belongs to microbiology? | Helminthes, viruses, fungi, not insects |
| Fungi is what?What kind of cell? | Mold Eukaryotic |
| What uses living organisms to make products? | Biotechnology |
| What requires organic material for growth? | Fungi |
| What is an example of a scientific name? | Mycobacterium leprae |
| What is the difference between fungi and bacteria? | Fungi nucleus, bacteria--no nucleus |
| What cannot metabolize, does not have cells? | viruses |
| What microscope has a light cell against a dark background? | Darkfield |
| What has the highest magnification and greatest reslution? | Electron |
| What is a bacterial smear? | Affix the cells to a slide before staining to affix the cells to the slide and kill bacteria. |
| What is the ocular lens? | Virtual image |
| What shows intracellular detail? | Phase contrast microscope |
| When does the specimen emit light wih ultra violet light? | Fluorescence |
| A counter stain in acid-fast stain is called what? | Basic dye (methylene blue) |
| What happens to gram negative bacteria after decolorizer? | Appear colorless |
| 1 um | 10 -3mm |
| What color are Gram positive bacteria after adding the first stain? | Purple |
| What kind of microscope did Van Leeuwenhoek use? | A simple one. |
| Cells are differentiated after what? | Alcohol or acetone |
| What does the atom 12C have? | 6 protons and 6 neutrons |
| NH 2 group is the what? | Protein functions group |
| What is safranin? | A basic dye |
| What counterstains in gram staining? | A basic dye |
| What steps are there in staining? | 1. Making a smear 2. Fixing 3. Staining |
| How do you see diferences in refractive indexes of cell structure? | Phase contrast |
| What is an example of a scientific name? | streptococcus pyogenes |
| What does not belong with helminth, plantae, fungi or animalia? | Protista |
| Koch was not connected with aseptic surgery but who was? | Lister |
| What did experiments about spontaneous generation show? | Microorganisms were already present |
| Who was not involved in germ theory? | Van leeuweheok |
| What has DNA, RNA, have cells and can live without host cells? | Viruses |
| What do bacteria not have? | Nucleus |
| HCl + NaHC03 is what kind of reaction? | Exchange reaction |
| What type of bond is there in the ions of salts? | Ionic bond |
| What are polymers of glucose? | Starch,dextran, glycogen and cellolose |
| What are acids bases and salts? | Substance that dissociates into one or more hydrogen ions (H) and one or more negative ions. Bases-- A substance that dissociates into one or more hydroxide ions (OH-) and one or more positive ions.Salts? A substance that dissolves in water to catio |
| CH2O units are what? | Carbohydrates |
| What does not increase the number of collisions in a chemical rection? | Enzymes |
| What contains alcohol and glycerol? | Lipids |
| What kind of bond is betwee hydrogen, nitrogen in another molecule? | Hydrogen |
| Are water molecules formed by hydrolysis? | No,by dehydration synthesis |
| What is not used up in a chemical reaction? | Enzymes |
| What are composed of chains of amino acids? | Proteins |
| Water and carbon dioxide change into hydrolic acid with what kind of reaction? | Exchange reaction |
| What are the primary molecules making up plasma membranes in cells? | Lipids |
| What kind of bond is water in a beaker? | Hydrogen bond |
| DNA has what?RNA has what? | Nucleic acidsNucleotides |
| 1um | 10 -6m |
| 1nm | 10 -9m |
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twoboys9194
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