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