Cytology MCQs

Mohammed Abubaker
Quiz by , created over 3 years ago

1 Medicine Quiz on Cytology MCQs, created by Mohammed Abubaker on 03/05/2016.

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Mohammed Abubaker
Created by Mohammed Abubaker over 3 years ago
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Question 1

Question
1. Receptor mediated endocytosis is the process of accepting substances, after recognising them and linking them to their specific membrane receptors.
Answer
  • True
  • False

Question 2

Question
2. The clathrin protein participates in the coated vesicles.
Answer
  • True
  • False

Question 3

Question
3. Exocytosis is the process of releasing secretory granules through the cell membrane.
Answer
  • True
  • False

Question 4

Question
4. Glycocalyx is a glycoprotein coat located on top of the plasma membrane and attached to it.
Answer
  • True
  • False

Question 5

Question
5. Cytoplasmic inclusions are obligatory (general) cell organelles.
Answer
  • True
  • False

Question 6

Question
6. Cell matrix (cytosol) is a light microscopy concept designated to the part of the cytoplasm that is not occupied by any structures.
Answer
  • True
  • False

Question 7

Question
7. Mitochondria observed under light microscope appear as tender granules or filaments.
Answer
  • True
  • False

Question 8

Question
8. Nissl bodies (substance) are a light microscope image of the rough (granular) endoplasmic reticulum.
Answer
  • True
  • False

Question 9

Question
9. Each cilium is built of microtubules following the 9x3+0 formula
Answer
  • True
  • False

Question 10

Question
10. The coated vesicles participate in the intracellular transport process.
Answer
  • True
  • False

Question 11

Question
11. Golgi apparatus can only be observed by light microscope.
Answer
  • True
  • False

Question 12

Question
12. Euchromatin is the active form of chromatin in the nucleus.
Answer
  • True
  • False

Question 13

Question
13. Microtubules are elements of the cytoskeleton.
Answer
  • True
  • False

Question 14

Question
14. Cell (plasma) membrane consists of:
Answer
  • Lipid bilayer and integral proteins
  • Lipid bilayer, integral proteins, polysaccharides
  • Lipid bilayer and protein bilayer
  • Lipid monolayer and integral proteins

Question 15

Question
15. The pinocytosis is:
Answer
  • Uptake by cells of fluid material
  • Extrusion of material to the exterior
  • Transport of molecules through the cell membrane with structural changes in it
  • Transport of molecules through the cell membrane using enzymes

Question 16

Question
16. By which of the following contacts the intercellular space disappears:
Answer
  • "Zipper" interlocking (interdigitations)
  • Tight Junction (Zonula Occludens)
  • Desmosome (Macula Adherens)
  • Gap Junction (Nexus)

Question 17

Question
17. The conexones are structural components of:
Answer
  • "Zipper" interlocking (Interdigitations)
  • Tight junction (Zonula Occludens)
  • Desmosome (Macula Adherens)
  • Gap Junction (Nexus)

Question 18

Question
18. Golgi Apparatus is stained with:
Answer
  • Iron-Hematoxylin
  • Feulgen reaction
  • Silver Nitrate (AgNO3)
  • Hematoxylin-Eosin (H-E)

Question 19

Question
19. Formation of new mitochondria is associated with:
Answer
  • Modification of Golgi apparatus cisternae
  • Their own budding or simple division
  • Modification of rough-surfaced (granular) endoplasmic reticulum
  • Fusion of lysosomes

Question 20

Question
20. Which of the following processes is concerned with the rough-surfaced (granular) endoplasmic reticulum:
Answer
  • Protein synthesis
  • Glycogen formation
  • Lipid synthesis
  • Carbohydrate metabolism

Question 21

Question
21. The coated vesicles participate in:
Answer
  • Intracellular digestion
  • Lipid synthesis
  • Intracellular transport processes
  • Protein synthesis

Question 22

Question
22. The lysosomes consist of:
Answer
  • Single membrane and phosphorylate enzymes
  • Single membrane and hydrolytic enzymes
  • Double infolded membrane
  • Microtubules

Question 23

Question
23. The microtubules are components of:
Answer
  • Nucleus
  • Cytoskeleton
  • Cell (plasma) membrane
  • Nuclear envelope

Question 24

Question
24. The sex chromatin (Barr body) is seen in:
Answer
  • Male somatic cells
  • Female somatic cells
  • Male germ cells
  • Female germ cells

Question 25

Question
25. Feulgen reaction (technique) is used for visualisation of:
Answer
  • RNA
  • DNA
  • Proteins
  • Polysaccharides

Question 26

Question
26. The histone proteins (histones) take part in:
Answer
  • Formation of DNA molecule
  • Formation of the karyoplasm
  • Formation of the nuclear pores
  • Formation of the ribosomes

Question 27

Question
27. The interphase nucleus of young, functional activity cells is:
Answer
  • Pyknotic
  • Large, pale stained with prominent nucleolus
  • With extremely dense heterochromatin
  • Heterochromatin

Question 28

Question
28. At metaphase the chromosomes:
Answer
  • Move to the centre 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 the inner surface of nuclear envelope

Question 29

Question
29. Mitotic spindle fibers consist of:
Answer
  • Microtubules
  • Microfilaments
  • Myofilaments
  • Neurofibrils

Question 30

Question
30. The lipids are visualised using:
Answer
  • Iron-Hematoxylin
  • Sudan III
  • PAS Reaction
  • Hematoxylin-Eosin

Question 31

Question
31. The karyorexis is:
Answer
  • Fragmentation of the nucleus
  • Melting of the nucleus
  • Disappearance of the nucleolus
  • Extrusion of the nucleus

Question 32

Question
32. The apocrine secretion is associated with:
Answer
  • Loss of 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

Question 33

Question
33. The apoptosis is associated with:
Answer
  • Programmed cell death
  • Cell death under pathological conditions
  • Cell differentiation
  • Cell division

Question 34

Question
34. The fibres of the division spindle are:
Answer
  • Microtubules
  • Microfibrils
  • Neurofibrils
  • Neurotubules

Question 35

Question
35. The nucleolus is:
Answer
  • Related to the formation of the subunits of the ribosomes
  • Limited by a membrane
  • Associated to the inner nuclear membrane
  • Visible in the mitotic nucleus

Question 36

Question
36. The enzyme acid phosphatase is characteristic for:
Answer
  • Mitochondria
  • Rough endoplasmic reticulum (rER)
  • Lysosomes
  • Ribosomes

Question 37

Question
37. The integral proteins of the plasma membrane interact with:
Answer
  • Peripheral proteins
  • Components of the cytoskeleton
  • Lysosomes
  • Nucleolus
  • Endoplasmic reticulum

Question 38

Question
38. The glyocalyx:
Answer
  • Is a polysaccharide layer
  • Takes part in cell adhesion
  • Takes part in cell cooperation
  • Contains protein and ion channels
  • Takes part in the ATP synthesis

Question 39

Question
39. The type of adherent junctions are:
Answer
  • Desmosomes (Macula adherens)
  • Hemi-desmosome
  • Nexus
  • Zonula Adherens
  • "Zipper" interlocking (Interdigitations)

Question 40

Question
40. The nexus is:
Answer
  • Built of connexones
  • Cell organelle
  • Occluding junction (Tight junction)
  • Consisting of protein channels for transport of small molecules and ions between the cells
  • Enzyme

Question 41

Question
41. The basophilic of cell cytoplasm is due to:
Answer
  • Presence of abundant smooth-surfaced endoplasmic reticulum
  • Presence of abundant rough-surfaced endoplasmic reticulum
  • Numerous mitochondria
  • Numerous ribosomes
  • Presence of abundant lipid droplets

Question 42

Question
42. The nuclear pores:
Answer
  • Are localised to the inner nuclear membrane
  • The function is selective transport of substances across the nuclear envelope
  • Are formed at sites where the inner and outer membranes of the nuclear envelope are joined
  • Are built of connexones
  • Are localised to the outer nuclear membrane

Question 43

Question
43. The nucleolus is:
Answer
  • A general cell organelle
  • Built of parts of the chromosome No 13, 14, 15, 21 and 22
  • Place where ribosomes are formed
  • Component of the nucleus
  • Bounded by a membrane

Question 44

Question
44. The main functions of the smooth-endoplasmic reticulum are:
Answer
  • 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

Question 45

Question
45. The term dyctyosome describes:
Answer
  • Component of Golgi complex
  • Component of centrioles
  • Flattened cisternae with outer forming and inner secreting surfaces
  • Releasing of secretory granules from the inner surface
  • Releasing of secretory granules from the outer surface

Question 46

Question
46. Which of the following features are specific for the mitochondria:
Answer
  • Possess own genetic apparatus
  • Formation of new mitochondria is through their own budding or simple division
  • Take part in ATP synthesis
  • Take part in the polysaccharide synthesis
  • Are component of the cytoskeleton

Question 47

Question
47. Which of the following features are common for the mitochondria and peroxysomes:
Answer
  • Are bounded by double membrane
  • Contain matrix with numerous enzymes
  • Take part in the biosynthesis of fatty acids
  • Are general membrane cell organelles
  • Possess own genetic apparatus

Question 48

Question
48. Which of the following features are specific for the lysosomes:
Answer
  • 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 enzymes

Question 49

Question
49. Which of the following features are specific for the peroxysomes:
Answer
  • Takes part in the steroid synthesis
  • Takes part in the intracellular digestion
  • Contain oxidative enzymes
  • Contain matrix with crystalloid
  • Contain phosphorylating enzymes

Question 50

Question
50. Which of the following features are specific for the microtubules:
Answer
  • 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 fibres during the mitosis

Question 51

Question
51. The mitochondria are visualised using:
Answer
  • Iron-Hematoxylin
  • Methylene Blue
  • Acid Fuscin by Altmann's Method
  • Hematoxylin-Eosin
  • Impregnation technique

Question 52

Question
52. Typical for the nuclear membrane (envelope) is:
Answer
  • Made of one layer (membrane)
  • Double layered
  • Continuous with the rough endoplasmic reticulum
  • Ribosomes of the inner layer (membrane)
  • Nuclear pores