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If it is necessary to investigate fat inclusions in cells. Which fixator and stain is useful for that investigation?

a. +formalin and Sudan III

b. alcohol and pyronin G

c. alcohol and Feulgen stain

d. formalin and periodic acid Schiff reaction

e. alcohol and toluidine blue

8. If it is necessary to investigate cellular structures sized less than 0,2 micrometers. Which methods are useful for that investigation:

a. phase-contrast

b. luminescent

c. ultraviolet

d. +electron

e. densitometry

9. The first stage in making of histologic specimens is:

a. +fixation of the material

b. staining of sections

c. hardening of material

d. making of sections

e. embedding of the sections in balsam

10. The second stage in making of histologic specimens is:

a. fixation of the material

b. staining of sections

c. +hardening of material

d. making of sections

e. embedding of the sections in balsam

11. The third stage in making of histologic specimens is:

a. fixation of the material

b. staining of sections

c. hardening of material

d. +making of sections

e. embedding of the sections in balsam

12. The fourth stage in making of histologic specimens is:

a. fixation of the material

b. staining of sections

c. hardening of material

d. making of sections

e. +embedding of the sections in balsam

13. Cellular structure that consists of lipid bilayer, integral, semiintegral and membranous proteins;

a.+plasmalemma

b. microtubule

c. ribosome

d. cell centre

e. axoneme

14.. Specialized junctional structure (cell contact) at which the two plasma membranes are in actual contact:

a. unspecialized contact

b.+ tight junction

c. gap junction

d. desmosome

e. chemogenic synapse

15.. Cell contact that allows the free passage of some substances from one cell to the other:

a. desmosome

b. tight junction

c. +gap junction

d. adhesive belt

e. unspecialized contact

16. Glycocalix of the cellular plasma membrane represents:

a. thick lipid layer

b. ribonucleoprotein layer

c.+ glycoprotein and glycolipid complexes associated with plasmalemma

d. layer of glycosaminoglycans

e. microfilaments and microtubules

17. Membranous organelle containing hydrolytic enzymes:

a. granular endoplasmic reticulum

b. Golgi complex

c.+ lysosomes

d. mitochondria

e. agranular endoplasmic reticulum

18. Synthesis of proteins of the cell membrane takes place in:

a. agranular endoplasmic reticulum

b. +granular endoplasmic reticulum

c. mitochondria

d. lysosomes

e. centrioles

19. Which of the following structures takes part in the breakdown of biogenic macromolecules:

a. centrioles

b. ribosomes

c. Golgi complex

d. endoplasmic reticulum

e.+ lysosomes

20. Primary lysosomes are formed in:

a. microtubules

b. cell centre

c. +Golgi complex

d. microfibrils

e. peroxisomes

21. Organelles that perform the function of accumulation, segregation, transport, modification and discharge of secretory product from the cell:

a. microtubules

b. microfilaments

c. ribosomes

d. polysomes

e. +dictyosomes of the Golgi complex

22. Cell organelle that consists of five to ten flattened cisternae and a large number of vesicles:

a. agranular endoplasmic reticulum

b. granular endoplasmic reticulum

c. mitochondrion

d.+ Golgi complex

e. lysosome

23. Cell organelle that is bounded by a smooth outer membrane within which there is an inner membrane; the inner membrane is highly folded on itself forming incomplete partitions called cristae; the space bounded by the inner membrane is filled by a granular material called matrix:

a. agranular endoplasmic reticulum

b. granular endoplasmic reticulum

c+ mitochondrion

d. Golgi complex

e. lysosome

24. Synthesis of adenosinetriphosphate takes place in:

a. centrioles

b. microtubules

c. microfilaments

d. ribosomes

e.+ mitochondria

25. Cell organelle 0,2-0,4 micrometer in size, that represents membrane bounded vesicle containing hydrolases:

a. agranular endoplasmic reticulum

b. granular endoplasmic reticulum

c. mitochondrion

d. Golgi complex

e.+ lysosome

26. Marker enzyme of peroxisomes:

a. succinate dehydrogenase

b. acid phosphatase

c. +catalase

d. alkaline phosphatase

e. myeloperoxidase

27. Protein synthesis for “export” takes place in:

a. nucleolus

b. mitochondria

c. +granular endoplasmic reticulum

d. agranular endoplasmic reticulum

e. Golgi complex

28. Ribosomes play an essential role in:

a.+ protein synthesis

b. glycogen synthesis

c. phagocytosis

d. glycosaminoglycan synthesis

e. transport of substances

29. Cell organelle that represents elementary apparatus of the protein synthesis:

a.+ ribosome

b. lysosome

c. peroxisome

d. mitochondrion

e. microtubule

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