Bio Test PDF

1.  What is the primary function of a microscope? A. Measure temperature B. Magnify small objects C. Generate electricity D. Record audio 2.  Which of the following is NOT a type of microscope? A. Compound microscope B. Electron microscope C. Thermometer microscope D. Scanning probe microsc...

1.  What is the primary function of a microscope? A. Measure temperature B. Magnify small objects C. Generate electricity D. Record audio 2.  Which of the following is NOT a type of microscope? A. Compound microscope B. Electron microscope C. Thermometer microscope D. Scanning probe microscope 3.  What type of microscope uses lenses to bend light and magnify specimens? A. Electron microscope B. Scanning probe microscope C. Compound microscope D. Atomic force microscope 4.  The scanning electron microscope (SEM) is used primarily for: A. Viewing internal cell structures B. Creating 3D images of surfaces C. Observing live specimens D. Measuring temperature 5.  Which microscope is used to study the internal structures of transparent specimens? A. Scanning electron microscope B. Transmission electron microscope C. Dark-field microscope D. Phase-contrast microscope 6.  What is the function of a confocal microscope? A. Magnify small objects B. Produce a 3D image of a specimen C. Study live specimens in real-time D. Measure temperature 7.  The oil immersion technique is commonly used with which type of microscope? A. Scanning electron microscope B. Transmission electron microscope C. Compound microscope D. Atomic force microscope 8.  In a transmission electron microscope (TEM), electrons pass through the specimen to create: A. 3D images B. Surface scans C. Cross-sectional views D. Live videos 9.  What is the main advantage of a dark-field microscope? A. High magnification B. Illumination of opaque specimens C. 3D imaging capability D. Real-time observation 10.              Which microscope is suitable for observing living cells and tissues in their natural state? A. Scanning electron microscope B. Transmission electron microscope C. Phase-contrast microscope D. Dark-field microscope 11.              The atomic force microscope (AFM) is commonly used to study: A. Subcellular structures B. Surface topography at the atomic level C. 3D images of large specimens D. Live microorganisms 12.              Which microscope uses a beam of electrons to achieve higher resolution than light microscopes? A. Compound microscope B. Electron microscope C. Scanning probe microscope D. Fluorescence microscope 13.              What is the primary function of a scanning probe microscope (SPM)? A. Create 3D images of surfaces B. Observe live specimens C. Measure temperature D. Magnify small objects 14.              A phase-contrast microscope is especially useful for observing: A. Stained specimens B. Transparent specimens C. Opaque specimens D. Fluorescent specimens 15.              Which microscope is commonly used in microbiology for observing bacteria and viruses? A. Compound microscope B. Scanning electron microscope C. Transmission electron microscope D. Dark-field microscope 16.              What does the term \"numerical aperture\" refer to in microscopy? A. Magnification power of the microscope B. Resolution of the microscope C. Light-gathering ability of the objective lens D. Depth of field of the microscope 17.              The field of view in a microscope refers to: A. The area visible when looking through the eyepiece B. The size of the specimen being observed C. The distance between the objective lens and the specimen D. The intensity of the light source 18.              Which type of microscope is most suitable for observing the detailed structure of small particles like nanoparticles? A. Atomic force microscope B. Scanning electron microscope C. Transmission electron microscope D. Dark-field microscope 19.              Fluorescence microscopy is commonly used to: A. Create 3D images of surfaces B. Observe live specimens C. Detect specific molecules in cells D. Measure temperature 20.              The resolution of a microscope is defined as its ability to: A. Magnify small objects B. Distinguish two closely spaced objects C. Illuminate opaque specimens D. Observe live specimens in real-time 21.              What is the primary role of the objective lens in a microscope? A.  To adjust the interpupillary distance B.  To magnify the specimen C. To control the illumination D. To regulate the stage movement 22.              What is the specific function of the illuminator in a microscope? A.  To magnify the image B.  To provide a light source for the specimen C. To control the focus of the objective lens D. To adjust the condenser height 23.              The condenser in a microscope is primarily responsible for: A.  Magnifying the specimen B.  Controlling the amount of light reaching the specimen C. Adjusting the eyepiece focus D. Regulating the stage movement 24.              What is the primary purpose of the diaphragm in a microscope? A.  To hold the objective lenses in place B.  To control the amount of light passing through the specimen C. To magnify the image D. To adjust the interpupillary distance 25.              In a microscope, what is the primary function of the stage? A.  To adjust the focus of the objective lens B.  To hold and support the specimen being observed C. To provide a light source for the specimen D. To magnify the image