Pregunta 1
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Receptor mediated endocytosis is the process of accepting substances, after recognizing them and linking them to their specific membrane receptors.
Pregunta 2
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The clathrin protein participates in the coated vesicles.
Pregunta 3
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Exocytosis is the process of releasing secretory granules through the cell membrane.
Pregunta 4
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Glycocalix is a glycoprotein coat located on top of the plasmalemma and attached to it.
Pregunta 5
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Cytoplasmic inclusions are obligatory (general) cell organelles.
Pregunta 6
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Cell matrix (cyotsol) is a light microscopy concept designated to the part of the cytoplasma that is not occupied by any structures.
Pregunta 7
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Mitochondria observed under light microscope appear as tender granules or filaments.
Pregunta 8
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Nissl bodies (substance) are a light microscope image of the rough (granular) endoplasmic reticulum.
Pregunta 9
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Each cilia is built of microtubules following the 9x3+0 formula.
Pregunta 10
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The coated vesicles participates in the intracellular transport processes.
Pregunta 11
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Cell (plasma) membrane consists of:
Respuesta
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Lipid bilayer and integral proteins
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Lipid bilayer, integral proteins, polysaccharides
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Lipid bilayer and protein bilayer
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Lipid monolayer and integral proteins
Pregunta 12
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The pinocytosis is:
Respuesta
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Uptake by the cells of fluid material
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Extrusion of material to the exterior
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Transport of molecules through the plasmalemma with structural changes in it.
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Transport of molecules through the plasmalemma using enzymes.
Pregunta 13
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By which of the following contacts the intercellular space disappears:
Respuesta
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"Zipper" interlocking (interdigitations)
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Tight junction (Zonula Occludens)
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Desmosome (Macula adherens)
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Gap Junction (nexus)
Pregunta 14
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The conexones are structural components of:
Respuesta
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"Zipper" interlocking (interdigitations)
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Tight junction (zonula occludens)
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Desmosome (macula adherens)
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Gap junction (nexus)
Pregunta 15
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Golgi apparatus is stained with:
Respuesta
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Iron-hematoxylin
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Feulgen reaction
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Silver nitrate (AgNO3)
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Hematoxylin-eosin
Pregunta 16
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Formation of new mitochondria is associated with:
Respuesta
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Modification of Golgi apparatus cisternae
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Their own budding or simple division
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Modification of rough-surfaced (granular) endoplasmic reticulum
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Fusion of lysosomes
Pregunta 17
Pregunta
Which of the following processes is concerned with the rough-surfaced (granular) endoplasmic reticulum:
Respuesta
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Protein synthesis
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Glycogen formation
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Lipid synthesis
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Carbohydrate metabolism
Pregunta 18
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The coated vesicles participate in:
Pregunta 19
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The lysosomes consists of:
Pregunta 20
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The microtubules are components of:
Respuesta
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Nucleus
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Cytoskeleton
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Cell (plasma) membrane
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Nuclear envelope
Pregunta 21
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The sex chromatin (Barr Body) is seen in:
Respuesta
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Male somatic cells
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Female somatic cells
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Male germ cells
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Female germ cells
Pregunta 22
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Feulgen reaction (technique) is used for visualization of:
Respuesta
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RNA
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DNA
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Proteins
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Polysaccharides
Pregunta 23
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The histone proteins (histones) take part in:
Respuesta
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Formation of DNA molecule
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Formation of the karyoplasm
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Formation of the nuclear pores
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Formation of the ribesomes
Pregunta 24
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The interphase nucleus of young, functional activity cells is:
Pregunta 25
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At metaphase the chromosomes:
Respuesta
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Move to the center of the cell in relation to the spindle fibers
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Move to the opposite poles of the cell
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Are free dispersed in the cell
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Are attached to inner surface of nuclear envelope
Pregunta 26
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Mitotic spindle fibers consists of:
Respuesta
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Microtubules
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Microfilaments
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Myofilaments
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Neurofibrils
Pregunta 27
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The lipids are visualized using:
Respuesta
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Iron hematoxylin
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Sudan III
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PAS reaction
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Hematoxylin - Eosin
Pregunta 28
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The karyorexis is:
Pregunta 29
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The apocrine secretion is associated with:
Respuesta
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Loss of the apical portion of the cell cytoplasm
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The entire cell is secreted
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Without the loss of any cell cytoplasm
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Loss of the basal portion of the cell cytoplasm
Pregunta 30
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The apoptosis is:
Pregunta 31
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The integral protein of the plasma membrane interact with:
Pregunta 32
Respuesta
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Is polysaccharide layer
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Takes part in the cell adhesion
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Takes part in the cell cooperation
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Contains protein and ion channels
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Takes part in the ATP synthesis
Pregunta 33
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The types of adherent junctions are:
Pregunta 34
Pregunta 35
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The basophilia of the cell cytoplasm is due to:
Respuesta
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Presence of abundant smooth-surfaced endoplasmic reticulum
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Presence of abundant rough-surfaced endoplasmic reticulum
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Numerous mitochondria
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Numerous ribosomes
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Presence of abundant lipid droplets
Pregunta 36
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The nuclear pores:
Respuesta
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Are localized to the inner nuclear membrane
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Consist of three rings each containing 8 protein granules
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Are closed by a thin, fibrous unilaminar diaphragm
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Are built of connexones
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Are localized to the outer nuclear membrane
Pregunta 37
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The nucleolus is:
Respuesta
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General cell organelle
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Built of parts of the chromosones N.13, 14, 15, 21, 22
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Place where the ribesomes are fromed
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Component of the nucleus
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Bounded by a membrane
Pregunta 38
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The main functions of the smooth-surfaced endoplasmic reticulum are:
Respuesta
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Formation of the secretory granules
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Add carbohydrates to the proteins (formation of glycoproteins)
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Synthesis of lipids and steroid hormones
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Synthesis of glycogen and mucus
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Intracellular transport
Pregunta 39
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The term dyctiosome describes:
Respuesta
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Component of Golgi complex
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Component of centrioles
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Flattened cisternae with outer forming and inner secreting surfaces
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Releasing of secretory granules form the inner surface
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Releasing of secretory granules form the outer surface
Pregunta 40
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Which of the following features are specific for the mitochondria:
Respuesta
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Posses own genetic apparatus
-
Formation of new mitochondria is trough their own budding or simple division
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Take part in the ATP synthesis
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Take part in the polysaccharides synthesis
-
Are component of the cytoskeleton
Pregunta 41
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Which of the following features are common for the mitochondria and peroxysomes
Respuesta
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Are bounded by double membrane
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Contain matrix with numerous enzymes
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Take part in the biosynthesis of fatty acids
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Are general membrane cell organelles
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Posses own genetic apparatus
Pregunta 42
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Which of the following features are specific for the lysosomes
Respuesta
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Take part in the steroid synthesis
-
Take part in the intracellular digestion
-
Contain hydrolytic enzymes
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Are related to processes of cell aging and death
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Contain phosphorylating
Pregunta 43
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Which of the following features are specific for the peroxysomes:
Respuesta
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Take part in the steroid synthesis
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Take part in the intracellular digestion
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Contain oxidative enzymes
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Contain matrix with crystalloid
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Contain phosphorylating enzymes
Pregunta 44
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Which of the following features are specific for the microtubules
Respuesta
-
Sustain the cell shape
-
Are built from the protein actin
-
Take part in the intracellular transport of molecules and organelles
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Ensure mobility of the microvilli
-
Participate in the formation of spindle fibers during mitosis
Pregunta 45
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The mitochondria are visualized using: