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Histo Final Exam > 1-50 > Flashcards

1-50 Flashcards

1
Q
  1. In preparing tissue for routine light microscopic study, which procedure immediately precedes clearing the specimen with an organic solvent://
A

Dehydration using increasing strengths of alcohol ending with absolute alcohol

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2
Q
  1. The basic living unit of all plants and animals://
A

Cell

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3
Q

‘3. The study of tissues is called://

A

Histology

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4
Q
  1. The vital product of mitochondria is://
A

‘ATP

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5
Q
  1. Structure connects the eyepiece to the objective lens://
A

The tube

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6
Q
  1. Microscope which does NOT depend on visible light://
A

Transmission electon microscope

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7
Q
  1. Step which occurs after the tissue is embedded in paraffin://
A

Embedded tissue is sectioned with microtome into very thin slices without distortion and attached to glass slides.
Mounted paraffin sections are deparaffined before staining.

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8
Q
  1. What color does hematoxylin stain structures://
A

Blue

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9
Q
  1. Which of the following is NOT a membranous organelle://
A
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10
Q
  1. Organelle which contains digestive enzymes://
A

Lysosomes

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11
Q
  1. Organelle which sorts and packages proteins within a cell is called://
A

Golgi bodies

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12
Q
  1. Folds on the inner mitochondrial membrane is called://
A

Cristae

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13
Q
  1. Organelle which is considered as powerhouse of the cell://
A

Mitochondria

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14
Q
  1. Which of the following is NOT an inclusion://
A
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15
Q
  1. Organelle which is involved in lipid metabolism://
A

SER

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16
Q
  1. The fluid inside the cell is called://
A

Cytoplasm

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17
Q
  1. Limiting membrane cell is called://
A

Plasma membrane

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18
Q
  1. General process which brings things into the cell is called://
A

Endocytosis

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19
Q
  1. Organelle which produces protein for export://
A

RER

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20
Q
  1. Ribosomes are assembled in:
A
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21
Q
  1. Transport of solid particles is called://
A

Phagocytosis

22
Q
  1. Plasma membrane consists of all components EXCEPT for: //
A

Pheripheral steroids

23
Q
  1. Golgi complex performs all enumerated functions EXCEPT for://
A

Secretory protein synthesis

24
Q
  1. Organelle which contains detoxifying enzymes://
A

Peroxisomes

25
Q
  1. Biosynthesis of lipids takes place in://
A

SER

26
Q
  1. Polysaccharide that can be found on the outer surface of the cell membranes://
A

Cellulose

27
Q
  1. Site of protein synthesis://
A

Ribosomes

28
Q
  1. What structure contributes to the cellsʼ cytoskeleton://
A

Microtubles, microfilaments(actin filaments), intermediate filaments

29
Q
  1. Cytoplasm basophilia is inherent in the cells that://
A
30
Q
  1. Calcium ions storage takes place in://
A
31
Q
  1. In a cell subunits of ribosomes are formed in://
A

Nucleolus

32
Q
  1. Membranous organelles are all enumerated EXCEPT for://
A
33
Q
  1. In a light microscope used for histology, resolution and magnification of cells are largely dependent on which component://
A

Objective lens

34
Q
  1. In transmission EM preparations of cells the cell membrane often appears as a trilaminar structure having two parallel dark-staining components on either side of an unstained middle layer. This central poorly stained region of the membrane is primarily responsible for which functions://
A

Creation of a barrier to water soluble molecules

35
Q
  1. Cytoplasm often stains poorly because its lipid content is removed by the organic solvents used in the clearing step in routine histological preparations. This problem is most likely to occur with cytoplasmic regions rich in which organelles://
A

SER

36
Q
  1. Oval and round organelles with double wall are seen at the electron micrograph. The outer membrane is smooth, the inner membrane folded into cristae contain enzyme ATPase synthetizes. These are://
A

Mitochondria

37
Q
  1. A tissue sample of benign tumor was studied under the electron microscope. A lot of small (15-20 nm) spherical bodies, consisting of 2 unequal subunits were detected. These are://
A

Ribosomes

38
Q
  1. The organisms to be identified have a nucleus surrounded by a nuclear membrane. Genetic material is concentrated predominantly in the chromosomes that consist of DNA strands and protein molecules. These cells divide mitotically. Identify these organisms://
A

Eukaryotes

39
Q
  1. Cells of healthy liver actively synthesize glycogen and proteins. What organelles are the most developed in them://
A

SER and RER

40
Q
  1. Which organelle contains detoxifying enzymes://
A

Peroxisomes

41
Q
  1. Which organelle contains digestive enzymes://
A

lysosomes

42
Q
  1. What are the folds on the inner mitochondrial membrane called://
A

cristae

43
Q
  1. Which organelle is involved in lipid metabolism://
A

peroxisomes

44
Q
  1. In transmission EM preparations of cells the cell membrane often appears as a trilaminar structure having two parallel dark-staining components on either side of an unstained middle layer. This central poorly stained region of the membrane is primarily responsible for which functions://
A

Creation of barrier yo water soluble molecules

45
Q
  1. Cytoplasm often stains poorly because its lipid content is removed by the organic solvents used in the clearing step in routine histological preparations. This problem is most likely to occur with cytoplasmic regions rich in which organelles://
A

SER

46
Q
  1. Moving of the daughter chromatids to the poles of the cell is observed in the mitotically dividing cell. On what stage of the mitotic cycle is this cell://
A

Anaphase

47
Q
  1. During which phase of mitosis do the chromosomes line up along the middle of the dividing cell://
A

Metaphase

48
Q
  1. The two main stages of the cell cycle are called://
A

Interphase and mitotic phase

49
Q
  1. DNA in a cell is copied during://
A

S phase

50
Q
  1. Cells spend most of their time in what phase://
A

Interphase

Histo Final Exam (8 decks)

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