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WorksheetsCytology MCQs
Total questions: 70
Worksheet time: 48mins
Receptor mediated endocytosis is the process of accepting substances, after recognizing them and linking them to their specific membrane receptors.
Yes
No
Receptor mediated endocytosis is the process of accepting substances, after recognizing them and linking them to their specific membrane receptors.
Yes
No
Exocytosis is the process of releasing secretory granules through the cell membrane
Yes
No
Glycocalix is the process of releasing secretory granules through the cell membrane
Yes
No
Cytoplasmic inclusions are obligatory (general) cell organelles
Yes
No
Cell Matrix (cytosol) is a light microscopy concept designed to the part of the cytoplasm that is not occupied by any structures.
Yes
No
Mitochondria observed under light microscope appear as tender granules or filaments
Yes
No
Nissl Bodies (substance) are a light microscopic image of the rough (granular) endoplasmic reticulum.
Yes
no
Each cilium is built of microtubules following the 9X3+0 formula
Yes
No
The coated vesicles participate in the intracellular transport process
Yes
No
Golgi apparatus can be observed only by light microscope.
Yes
No
Euchromatin is the active form of the chromatin in the nucleus
Yes
No
Microtubules are elements of the cytoskeleton
Yes
No
Cell (Plasma) Membrane consists of:
a. Lipid bilayer and integral proteins
b. lipid bilayer, integral proteins, polysaccharides
c. lipid bilayer and protein bilayer
d. lipid monolayer and integral proteins
The pinocytosis is:
a. uptake by the cells of the fluid material
b. extrusion of material to the exterior
c. transport of molecules through the plasmalemma with structural changes in it
d. transport of molecules through the plasmalemma using enzymes
By which of the following contacts the intracellular space disappears:
a. "zipper" interlocking (interdigitations)
b. tight junction (zonula occludens)
c. desmosome (macula adherens)
d. gap junction (nexus)
The conexones are structural components of:
a. "zipper" interlocking (interdigitations)
b. tight junction (zonula occludens)
c. desmosome (macula adherens)
d. gap junction (nexus)
Golgi apparatus is stained with:
a. iron- hematoxylin
b. Feulgen reaction
c. silver nitrate (AgNo3)
d. Hematoxylin-eosin
Formation of new mitochondria is assosiated with:
a. modification of Golgi apparatus cisternae
b. their own budding or simple division
c. modification of rough surfaced (granular) endoplasmic reticulum
d. fusion of lysosomes
Which of the following processes is concerned with the rough- surfaced (granular) endoplasmic reticulum:
a. protein synthesis
b. glycogen formation
c. Lipid Synthesis
d. Carbohydrate metabolism
The coated vesicles participate in:
a. intracellular digestion
b. lipid synthesis
c. intracellular transport processes
d. protein synthesis
The lysosome consists of:
a. single membrane and phosphorylating enzymes
b. single membrane and hydrolytic enzymes
c. double infolded membrane
d. microtubules
The microtubules are components of:
a. nucleus
b. cytoskeleton
c. cell ( plasma ) membrane
d. nuclear envelope
The sex chromatin ( Barr body) is seen in:
a. male somatic cells
b. female somatic cells
c. male germ cells
d. female germ cells
Feulgen reaction (technique) is used for visualization of:
a. RNA
b. DNA
c. proteins
d. Polysaccharides
The histone proteins ( histones) take part in:
a. formation of DNA molecule
b. formation of the karyoplasm
c. formation of the nuclear pores
d. formation of the ribosomes
The interphase nucleus of young, functional activity cells is:
a. pyknotic
b. large, pale stained with prominent nucleolus
c. extremely dense heterochromatin
d. fragmented
At metaphase the chromosomes:
a. move to the centre of the cell in relation to the spindle fibres
b. move to the opposite poles of the cell
c. are free dispersed in the cell
d. are attached to inner surface of nuclear envelope
Mitotic spindle fibers consist of:
a. microtubules
b. microfilaments
c. myofilaments
d. neurofibrils
The lipids are visualised using:
a. iron hematoxylin
b. Sudan III
c. PAS reaction
d. Hematoxylin- eosin
The karyorexis is:
a. fragmentation of the nucleus
b. melting of the nucleus.
c. disappearance of the nucleolus
d. extrusion of the nucleus
The apocrine secretion is associated with:
a. loss of the apical portion of the cell cytoplasm
b. the entire cell is secreted
c. without the loss of any cell cytoplasm
d. loss of the basal portion of the cell cytoplasm
The apoptosis is:
a. programmed cell death
b. cell death under pathological conditions
c. cell differentiation
d. cell division
The fibers of the division spindle are:
a. microtubules
b. microfibrils
c. neurofibrils
d. neurotubules
The nucleolus is:
a. related to the formation of the subunits of the ribosomes
b. limited by the membrane
c. associated to the inner nuclear membrane
d. visible in the mitotic nucleus
The enzyme acid phosphatase is characteristic for:
a. mitochondria
b. rough endoplasmic reticulum (rER)
c. Lysosomes
d. Ribosomes
The integral proteins of the plasma membrane interact with:
a. peripheral proteins
b. components of the cytoskeleton
c. lysosomes
d. nucleolus
e. endoplasmic reticulum
The glycocalix:
a. is the polysaccharide layer
b. takes part in the cell division
c. takes part in the cell cooperation
d. contains protein and ion channels
e. takes part in the ATP synthesis
the types of adherent junctions are:
a. desmosomes (macula adherens)
b. hemi-desmosome
c. nexus
d. zonula adherens
e. "zipper" interlocking (interdigitations)
The Nexus is:
a. built of connexones
b. cell organelle
c. occluding junction ( tight junction)
d. consisting of protein channels for transport of small molecules and ions between the cells
e. enzyme
The basophilia of the cell cytoplasm is due to:
a. presence of abundant rough surfaced endoplasmic reticulum
b. presence of abundant rough-surfaced endoplasmic reticulum
c. numerous mitochondria
d. numerous ribosomes
e. presence of abundant lipid droplets
The nuclear pores:
a. are localized to the inner nuclear membrane
b. the function is selective transport of substances across the nuclear envelope
c. are formed at sites where the inner and outer membranes of the nuclear envelope are joined
d. are built of connexones
e. are localized to the outer nuclear membrane
The nucleolus is:
a. a general cell organelle
b. built of parts of the chromosomes No 13,14,15,21 and 22
c. place where the ribosomes are formed
d. component of the nucleus
e. bonded by a membrane
The main functions of the smooth-surfaced endoplasmic reticulum are:
a. formation of the secretory granules
b. add carbohydrates to the proteins (formation of glycoproteins)
c. synthesis of lipids and steroid hormones
d. synthesis of glycogen and mucus
e. intracellular transport
The term dyctyosome describes:
a. component of golgi complex
b. component of centrioles
c. flattened cisternae with outer forming and inner secreting surfaces
d. release of secretory granules from the inner surface
e. release of secretory granules from the outer surface
Which of the following features are specific for the mitochondria:
a. possess own genetic apparatus
b. formation of new mitochondria is through their own budding or simple division
c. take part in the ATP synthesis
d. take part in the polysaccharide synthesis
e. are component of the cytoskeleton
Which of the following features are common for the mitochondria and peroxysomes:
a. are bounded by double membrane
b. contain matrix with numerous enzymes
c. take part in the biosynthesis of fatty acids
d. are general membrane cell organelles
e. posses own genetic apparatus
Which of the following features are specific for the lysosomes:
a. take part in the steroid synthesis
b. take part in the intracellular digestion
c. contain hydrolytic enzymes
d. are related to the processes of cell aging and death
e. contain phosphorylating enzymes
Which of the following features are specific for the peroxysomes:
a. take part in the steroid synthesis
b. take part in the intracellular digestion
c. contain oxidative enzymes
d. contain matrix with crystalloid
e. contain phosphorylating enzymes
Which of the following features are specific for the microtubules:
a. sustain the cell shape
b. are built from the protein actin
c. take part in the intracellular transport of molecules and organelles
d. ensure mobility of the microvilli
e. participate in the formation of spindle fibers during the mitosis
The mitochondria are visualised using:
a. iron- hematoxylin
b. methylene blue
c. acid fuscin by altmanns method
d. hematoxylin- Eosin
e. impregnation technique
Typical for the nuclear membrane (envelope) is:
a. made of one layer (membrane)
b. double layered
c. continuous with the rough endoplasmic reticulum (rER)
d. ribosomes on the inner layer (membrane)
e. nuclear pores
Based on the function of the plasma membrane proteins are classified:
(5 points)
(a)
The types of cell junction ( intracellular contacts) are:
(a)
Electron microscopy shows that the nucleolus consists of following parts:
(a)
The general membrane cell organelles are:
(a)
The main changes in the nucleus and cytoplasm during prophase are:
(a)
The main components of the cytoskeleton are:
(a)
The cell inclusions are:
(a)
The light microscope changes in the ageing cell are:
(a)
The types of exocrine secretion are:
(a)
The specialized organelles are:
(a)
By light microscopic observation of section of spinal ganglion stained with AgNo3 (silver impregnation) a reticular network situated near the nucleus is visible.
What is this organelle?
(a)
Electron microscopy reveals a shallow bowl like complex consisting of parallel arranged cisternae (flattened plates) with associated vesicles and vacuoles.
What is this organelle?
(a)
By electron microscopy, a pair of cylindrical structures localized at right angle to each other is observed. In transverse section, their wall is composed of nine sets of three peripherally placed microtubules.
What is this organelle?
(a)
Under light microscope, in the cytoplasm of cells stained with Sudan III- hematoxylin coloured in orange droplets surrounding blue nuclei are seen .
What is the name of the described structure?
(a)
During mitosis the chromosomes are localized in the opposite poles of the spindle fibres and form a specific figure.
Which phase of mitosis is this and what is the name of the figure?
(a)
With electron microscope cylindrical structures made of 9X2+2 microtubules can be seen.
What is this organelle?
(a)
With electron microscope an oval structure made of two membranes with cristae of the inner membrane can be seen.
What are these structures?
(a)
Electron microscopy reveals that the Golgi complex consists mainly of:
(a)
