MCQ1: The commonest rocking microtome is called a ----------------- Answer: Cambridge Rocker MCQ2: A rocking microtome is generally best for cutting sections thicker than -------- Answer: six microns MCQ3: Rotary microtomes enable sections of ---------- thickness to be cut Answer: 5 microns MCQ4: -----------is a device which usually has a wedge blade and the instrument is unusual as the blade is moved past the fixed chuck Answer: freezing microtome MCQ5: Microtomes of all kinds are cleaned of wax after use possibly by using a little of--------- harmful solvent Answer: Xylene MCQ6: Microtome parts liable to rust should be wiped with a little ----------------- Answer: thin oil MCQ7: There are three basic cross sectional shapes of knives, namely,------------- Answer: Wedge, plano- concave and double concave MCQ8: ----------- knives are often used for sectioning soft materials such as celloid in embedded Tissues Answer: plano-concave MCQ9: A stereo / dissecting microscope is used for______. Answer: Observing specimen in three-dimensional images MCQ10: Botanical sectioning razors are generally ------------------ Answer: plano-convex MCQ11: The best knives for the cutting of paraffin blocks are the ----------- Answer: double concave MCQ12: The single ----------- ground botanical razor is the ideal instrument for cutting sections Answer: Hollow MCQ13: ----------- is the mechanical cutting of plant or animal materials in the laboratory Answer: Microtomy MCQ14: The purpose of ----------- in the lab is to get a thin section of the object preferably only one cut thick for microscopic viewing Answer: Sectioning MCQ15: --------- is the science of the measurement of light in terms of its perceived brightness to the human eye Answer: Photometry MCQ16: ----------- is the science of measurement of radiant energy (including light) in terms of absolute power Answer: Radiometry MCQ17: Photometry is typically based on the eye’s -----------response Answer: Photopic MCQ18: Parallel examples of analogous systems of quantities of photometric and radiometric quantities include all of these, except Answer: Absolute and none absolute power MCQ19: Watts are units of radiant flux while ----------- are units of luminous flux Answer: Lumens MCQ20: The ---------- is the photometric unit of light output Answer: Lumen MCQ21: A dark-field microscope is useful for ______. Answer: Observing bacterial motion MCQ22: The purpose of dehydration in permanent slide preparation is to_____. Answer: allow complete infiltration of tissues with Canada balsam MCQ23: ---------- deals mainly with measurement of heat energy Answer: Calorimetry MCQ24: ------------ is a form of energy that flows from a part of a system to another through a temperature gradient Answer: Heat MCQ25: The following are good practices in the storage of prepared slides except ______. Answer: No need to store temporary slides MCQ26:  If a slide is to be kept for long-term reference Answer: it must be made as a permanent preparation MCQ27: Study of the nervous system is done with: Answer: preserved animals MCQ28: Proper disposal of dissected animals should be done by______. Answer: By burying them deep in the soil MCQ29: Which of the following is a type of microtome used in the laboratory? Answer: All of the options MCQ30: The following are cross sectional shapes of microtome knives except _____. Answer: Zig-zag MCQ31: All microtomes should be cleaned with______. Answer: Wax MCQ32: ............. are solid rods made of globular proteins and are important component of the cytoskeleton Answer: Microfilaments MCQ33: The main aim of fixation for fresh tissues is to _____ Answer: kill tissues MCQ34: The making of a permanent stained preparation mounted in Canada balsam involves five process in order Answer: Fixation - Staining – Dehydration -Clearing-Mounting MCQ35: Microtomes can be divided into four basic groups in the following order: Answer: Rocking –Rotary- Sledge -Freezing FBQ1: Clearing removes all traces of alcohol and allows the mountant to infiltrate the ---------- Answer: Tissue FBQ2: The simplest light microscope is ----------- magnifying lens Answer: simple FBQ3:  If a slide is to be kept for long-term reference it must be made as a ------------preparation Answer: Permanent FBQ4: The study of the nervous system is done with ------------------ animals Answer: preserved FBQ5: We can immobilize a frog for dissection by ------------------ Answer: pithing FBQ6: Dissection of animals is done in a ------------ tray Answer: dissection FBQ7: During dissection, vertebrates are better opened up from the --------- side Answer: ventral FBQ11: Highly refractive structure bend light at much greater angle than do structure with low ------------ Answer: refractive index FBQ12: The conductivity of a solution depends on the number of Answer: Ions FBQ13: The oil immersion objective with 1000x magnification is also known as_____? Answer: Wet objective FBQ14: When a dissecting microscope is used, ----------- images of the object can be seen on the stage. Answer: three-dimensional FBQ15: ------------ microscopy is a cheaper alternative to phase contrast microscopy Answer: Dark field FBQ16: As a rule the shortest ---------- has the lowest power and the longest one has the highest power. Answer: Lens FBQ17: The main aim of fixation for fresh tissues is to kill ----- Answer: Tissues FBQ18: The ------------ is the photometric unit of light output Answer: Lumen FBQ19: ---------------- measurement is based on photodetectors, devices that produce an electric signal when exposed to light Answer: Photometric FBQ20: ----------------- photometers are used to measure the directional luminous flux produced by Lamps Answer: Spherical FBQ21: A------------- rotates about the lamp in three axes measuring the output of the lamp from all sides Answer: Photocell FBQ22: when a hot and cold objects are in-------------- contact, heat flows from the hot to the cold object until thermal equilibrium is established Answer: Thermal FBQ23: The calorimeter is usually made up of ----------, a good conductor so that it reaches the same temperature as its content as soon as possible Answer: Copper FBQ24: Why an insulating lid is used to cover the calorimeter to which leads to cooling and loss of part of the liquid weighed into the calorimeter to prevent ---------- Answer: evaporation FBQ25: --------------- is the rate at which energy is generated or expended Answer: Power FBQ26: The subject of chromatograpy was firstly introduced by the Russian botanist ------------- Answer: Micharl Iswett FBQ27: Separation of two sample components in chromatography is based on their different distribution between two ------------ phases Answer: non-miscible FBQ28: ------------ is a method for separating the components of a mixture by differential distribution of the components between a stationary phase and mobile phase. Answer: Chromatography FBQ29: In liquid chromatography the mobile phase is a -------- Answer: Liquid FBQ30: --------------- Chromatography is one of the most common types of chromatography in which filter paper serves as a support for immobile liquid phase Answer: Paper FBQ31: ------------------- chromatography is frequently used by organic chemists to purify liquids and solids Answer: Column FBQ32: Thin layer chromatography is particularly useful in ----------------- work Answer: forensic FBQ33: Gas Chromatography is used to analyse ----------------- samples for the presence of alcohol Answer: blood FBQ34: ---------- lenses are best used at higher powers to focus light unto a specimen Answer: Condenser   FBQ35: In microscopy staining is a technique used to ________ and ______ Answer: improve contrast, resolution FBQ36: In microscopy staining is a technique used to ________ and ______ Answer: improve contrast, resolution FBQ37: In microscopy staining is a technique used to ________ and ______ Answer: improve contrast, resolution FBQ38: In microscopy staining is a technique used to ________ and ______ Answer: improve contrast, resolution