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L5,6 Non membranous organoids , Histology

Lecture video 


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MCQ 

1.All of the following are non membranous organoids ,except 

a.rimosomes 

b.microtubules 

c.RER 

d.centrioles 

2.what part of cell make protein  

a.ribosomes 

b.mitochondria 

c.golgi 

d.lysosmes  


3.which of the following composed of large & small subunit 

 a.golgi 

b.endoplasmic reticulum 

c.mitochondria 

d.ribosomes   


4.which of the following structures has 9+2 arrangement 

a.flagella 

b.ribosome 

c.mitochondria 

d.golgi 

e.non of the above 


5.michrotubules are involved in  

a.proteinsynthesis 

b.supporting elongated cell shapes 

c.contraction of the cell 

d.ATP synthesis 

e.movement of microvilli

 

6.the average diameter of intermediate filaments 

a.250Mm 

b.100:120Mm 

c.100:120nm 

d.8:10nm 

e.250nm 


7.ribosome production not occur in nucleus  

a.true 

b.false 

8.microtubules are assembled from smaller subunits a.true 

b.false 

 

9.lysosomes are involved in protein synthesis 

a.true 

b.false 

10.microfilament are the major structural component of cilia

 a.true 

b.false 

11.cillia &flagella are similar in their length 

a.true 

b.false

12. ribosomes are found in mature RBCs  

A.true 

b.false 

13. the attached ribosomes as in 

A-pancreatic acinar cells  

B-intra cellular storage as lysosomes

 c-integral protein in cell membrane 

D-nissel granules 

E-all of the above 

14-ribosomes are acidophobic  

a.true 

b.false 

15.we use H&E to see microtubules by LM 

a.true 

b.false 

16.microtubules is formed of dimer unit of tubulin 

 a.true 

b.false 

17. the function of microtubules is to form  

A-mitotic spindle 

 B- centriole

C-the axoneme of cilia and flagella 

d-all of the above 

18. by EM microtubules appear  

A-long 

 b-straight 

 C-non branching

 D- all of the above 

19. we use which technique to see microtubules by LM 

A-H&E 

 B-immunofluorescent  

C-silver 

20.thin filament diameter is 6-8nm 

a.true 

b.false 

21.glial filaments is an intermediate filaments 

 a.true 

b.false 

22. function of cell filaments  

A-contraction of muscle fibers and non muscle cells 

B-movement of microviili 

C-retraction of blood clot 

D-separation of cells in cell division 

E-all of the above 

23.centrioles are found in mature nerve cells 

 a.true 

b.false 

24.is there central lumen-cartwheel or octagonal structure in daughter centriole 

a.true 

b.false 

25. function of centrioles  

A-formation of mitotic spindles 

B-formation of protein 

C-contraction of muscle fibers  

D-non of the above 


26. centrioles form 

a-mitotic spindles

 b-cillia 

c-flagella

 d-all of the above 

27.the pericentriolar bodies represent the organizing center of microtubules  

a.true 

b.false 

28. the kinetosome of cilia is a centriole 

 a.true 

b.false 

29. LM : cilia appear as all of the following except :  

a-short 

 b-hair like 

 c-connected with deeply stained basal body 

 d-long  

30. -shaft of cilia is composed of  

a-2 singlets microtubules 

 b-9paired (doublets) microtubules

 c-inter doublet links 

 d-all of the above 

31. the subunit A of doublet microtubules of shaft of cilia is all of the following except  

a-lies near the cilium axis 

 b-large in size

 c-small in size

 d-complete circle 

 e-its wall made of 13 protofilaments 


32. the kartegner syndrome represented by : 

a-sinusitis 

 b-bronchiectasis 

c-dextrocardia or situs inversus totalis 

 d-male infertility

 e-all of the above  

33.the glycogen appear purple by staining by (PAS) periodic acid Schiff 

a.true 

b.false 

34. -the lipids appear as non membranous droplets

 a.true 

b.false 

35. the exogenous pigment are all of the following except  

a-dusts and carbon particles 

b-tatto 

c-lipofuscin

 d-lipochromes

 e-minerals intoxication 

 

 

 

ANSWERS 

1.c 

2.a 

3.d 

4.a 

5.b 

6.d 

7.b 

8.a 

9.b 

10.b 

11.b 

12.b 

13.e 

14.a 

15.b 

16.a 

17.d 

18.d 

19.b 

20.a 

21.a 

22.e 

23.b 

24.b 

25.a 

26.d 

27.a 

28.a 

29.d 

30.d 

31.b 

32.e 

33.a 

34.a

 35.c 

  

Mention 

1.function of different types of ribosomes? 

2.EM of microtubules in longitudinal section? 

3.LM of centrioles in fixed cells? 

4.parts that form cilia? 

5.difference between cilia & flagella ? 

6.difference between subunit A & B in microtubules that form shaft of cilia ? 

7.classification of cell filaments ? 

8.nutritive substances in the cell ? 

9.examples to endogenous pigments ? 

10.crystalloid that found in sertoli cell & one that found in leyding cell ? 

 

 


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