Histology MCQs/Cell and Technique (2023/24)



{How is called degradation of harvested sample of tissue caused by main enzymes of the tissue? + Autolysis - Apoptosis - Autophagy - Autonomy
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{Why are some hematoxylins called "iron"? - Used embedding medium contains iron - Used fixative fluid contains iron - Used hematoxylin is steel-blue + Used mordant contains iron
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{Which structure is stained using PAS reaction? - DNA - RNA - Glycogen only + All polysaccharides
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{All but one structure are eosinophilic. Which is not? - Mitochondria + Ribosomes - Cytoplasm - Collagen
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{Which basic (overview) staining method is the most common? - AZAN (aka Heidenhein's trichromatic method) + Hematoxylin-Eosin - Mallory trichrome - Masson trichrome
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{Which color has collagen if the yellow Masson trichrome is used? + Yellow - Black - Pink - Red
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{Which color have nuclei if the AZAN is used? - Magenta - Black - Blue + Red
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{Which method of physical fixation is the most common? - Irradiation by UV light - Microwaving + Freezing - Heating
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{How thick are slices of the specimen for the light microscopy? - 4 - 10 mm - 1 - 5 mm + 4 - 10 μm - 1 - 5 μm
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{Which embedding medium is the most common for processing for the light microscopy? - Water insoluble resin - Water soluble resin + Parafin-wax - Gelatine
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{Which tool is necessary if the label in used immunohistochemistry is a fluorescent dye? - Atomic force microscope - Electron microscope + Source of UV light - Cryotome
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{What is necessary if the Sudan IV dye is applied? - Perserve the monosaccharides inside the specimen + Perserve the fat inside the specimen - Keep the specimen frozen - Keep the specimen warm
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{Where take places enzymes of the respiratory chain? - Intermembranous mitochondrial space + Inner mitochondrial membrane - Outer mitochondrial membrane - Inner mitochondrial matrix
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{Which type of cytoskeleton is used by the dynein? - Dynein is not associated with the cytoskeleton - Intermediate filaments - Microfilaments + Microtubules
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{Which of following molecules can pass the membrane easily without the transporter? - Fatty acid - Glucose + Oxygen - Water
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{How is calleed programmed cell death? - Autolysis - Autophagy + Apoptosis - Autonomy
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{How is called phase of the cell cycle in which are non-proliferating cells like neurons? + G0 - G1 - G2 - G3
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{Which cells contain huge amount of a lipofuscin? - Intensily dividing cells - Immature cells - Young cells + Old cells
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{How is called main/immediate template for production of proteins? - snRNA + mRNA - tRNA - rRNA
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{What is main function of the nucleolus? - Production of proteasomes - Production of peroxisomes + Production of ribosomes - Production of lysosomes
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{One of following functions is not main function of the Golgi apparatus. Which one? - Covalent modification of proteins + Degradation of proteins - Targeting of proteins - Glycosylation
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{What is not main functin of the smooth endoplasmic reticulum? - Degradation of xenobiotics + Synthesis of proteins - Production of lipids - Storage of calcium
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{High amount of the euchromatin in a nucleus is a sign of: - Epigenetical silencing of nearly all genes + High level of transcription of genes - Preparation for mitotic division - Preparation for meiotic division
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{Nuclear envelope is associated with one class of intermediate filaments. Which one? - Cytokeratines - Vimentin + Lamins - Desmin
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{How are called main structural proteins of chromosomes which are tightly associated with the DNA? + Histones - Tubulins - Lamins - Actins
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{What is a glycocalyx? - Layer of nucleic acids associated with outer cell membrane - There is no structure called glycocalyx in the human body + Layer of saccharides associated with outer cell membrane - Layer of lipids associated with outer cell membrane
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{What is main function of aquaporins? - They are involved in regulation of exocytosis - They are part of pinocytic vesicles - They are involved in phagocytosis + They are channels for water
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{Which cell adhesion is the most important for mechanical cohesivity of cells? - Zonula occludens (occludent junction) + Desmosome (macula adhaerens) - Gap junction (nexus) - Tight junction
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{Which of following molecules is usually immediate source of energy for biochemical processes? - Triacylglycerols - Fatty acids - Glucose + ATP
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{How is called first step of mitosis? - Metaphase - Telophase + Prophase - Anaphase
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{Which type of cytoskeleton is usually associated with gap junctions? + Gap junction is not associated with cytoskeleton - Cytokeratins - Vimentin - Actin
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{How is called central structure for growth of microtubules? + Centrosome - Peroxisome - Proteasome - Nucleus
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{Which structure gives rise to the lipofuscin? - Smooth endoplasmic reticulum - Golgi apparatus - Melanosomes + Lysosomes
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{Which structure is main molecule of the biological membrane? - Neutral polysaccharides - Charged polysaccharides - Lipophilic proteins + Phospholipids
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{Which is a function of caspases? + Degradation of macromolecules of dying cell - Degradation of ingested bacteria - Degradation of worn-out proteins - Degradation of damaged DNA
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{Which of following structures is a cell inclusion? + Granule of glycogen - Proteasome - Ribosome - Centriol
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{Which organelles are abundant in the basal labyrinth (aka basal annealing)? - Golgi apparatus - Microfilaments + Mitochondria - Ribosomes
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{Which type of cytoskeleton supports microvilli? - Vimentin filaments + Microfilament - Microtubules - Cytokeratins
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{Which motor protein is responsible for movement of kinocilia (aka cilia)? - Kinocilia are immotile - Kinesin + Dynein - Myosin
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{Which motor protein is responsible for movement of stereocilia? + Stereocilia are immotile - Kinesin - Myosin - Dynein
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Links

 * List of all tests: Histology MCQs
 * Portal:Histology