Histology

Question 1

Preserve tissue structure and prevent degradation

Answer 1

FIXATION

Question 2

To remove cell water and fixative by using series of Alcohol solutions

Answer 2

Dehydration

Question 3

Alcohol is removed from the tissue using a clearing agent

Answer 3

Clearing

Question 4

What is a popular clearing agent?

Answer 4

Xylene

Question 5

Cleared tissue is soaked in melted paraffin wax. Also to facilitate handling and cutting of tissue

Answer 5

Infiltration

Question 6

Paraffin-infiltrated tissue is placed in a small mold. Done to obtain a rigid consistency of the specimen for sectioning

Answer 6

Embedding

Question 7

Paraffin block is trimmed to expose the tissue for sectioning (slicing) on a microtome

Answer 7

Trimming

Question 8

Applying dyes on sections aids in the visualization of the architectural pattern of tissues and their physical characteristics and the relationship of cells and extracellular materials

Answer 8

Staining

Question 9

Processes involved in preparing a slide

Answer 9

Fixation
Dehydration
Clearing
Infiltration
Embedding
Trimming
Staining

Question 10

Most commonly used dye that turns to purplish blue

Answer 10

Hematoxylin

Question 11

Most commonly used dye that turns to red or pink

Answer 11

Eosin

Question 12

Type of specialised cell responsible for movement

Answer 12

Muscle and other contractile cells

Question 13

Type of specialised cell responsible for adhesive and tight junction between cells

Answer 13

Epithelial cells

Question 14

Type of specialised cell responsible that synthesize and secrete components of the
ECM

Answer 14

Fibroblasts, cells of bone and cartilage

Question 15

Type of specialised cell responsible that convert physical and chemical stimuli to action potentials

Answer 15

Neurons and sensory cells

Question 16

Type of specialised cell responsible for synthesis and secretion of glycoproteins

Answer 16

Cells of digestive glands

Question 17

Type of specialised cell responsible for synthesis and secretion of glycoproteins

Answer 17

Cell of mucous glands

Question 18

Type of specialised cell responsible for synthsis and secretion of steriods

Answer 18

Certain cells of adrenal gland, testis,ovary

Question 19

Type of specialised cell responsible for ion transport

Answer 19

Cells of Kidney and salivary gland ducts

Question 20

Type of specialised cell responsible for intracellular digestion

Answer 20

Macrophages and neutrophils

Question 21

Type of specialised cell responsible for lipid storage

Answer 21

Fat cells

Question 22

Type of specialised cell responsible for metabolic absorption

Answer 22

Cells lining the intestine

Question 23

Protein linked with sugar chains and acts as receptor for cell adhesion and cell recognition

Answer 23

Glycoprotein (under Glycocalyx)

Question 24

Lysosomes is abundant with what immune cells?

Answer 24

Macrophages and Neutrophils

Question 25

degrade denatured or otherwise nonfunctional polypeptides; Remove proteins no longer needed by the cell; they can be detected once cannot be unfolded by ubiquitin

Answer 25

Proteosomes

Question 26

intracellular digestion and turnoverof cellular components

Answer 26

Lysosomes

Question 27

Mitochondria of stressed cell releases what fromthe inner membrane, triggering a regulated series of events culminating in cell death (apoptosis)

Answer 27

Cytochrome C

Question 28

Type of inclusion: accumulations of lipid-filling adipocytes (fat cells)

Answer 28

Lipid droplets

Question 29

Type of inclusion: aggregates of carbohydrates polymer in which glucose is stored

Answer 29

Glycogen granules

Question 30

Type of inclusions: Pigmented deposits a dark brown granules

Answer 30

Melanin

Question 31

Type of inclusions: complex mix of material partly derived from residual bodies after lysosomal digestion

Answer 31

Lipofuscin

Question 32

Type of inclusions: dense brown aggregate of denatured ferritin proteins, results from phagocytosis of red blood cells

Answer 32

Hemosiderin

Question 33

Interphase: A period which accumulate the enzyme and nucleotides REQUIRED for DNA replication

Answer 33

G1

Question 34

Interphase: Period for preparation of mitosis

Answer 34

G2

Question 35

Interphase: Activities may be temporarily or permanently suspended

Answer 35

G0

Question 36

Phases of Mitosis

Answer 36

Prophase - dispersed chromosomes Metaphase - Chromosomes aligned in equatorial plane Anaphase - pulled apart Telophase - Cytokinesis

Question 37

Function of Epithelial

Answer 37

Covering Absorption Glandular Secretion

Question 38

Function of Connective Tissue

Answer 38

Support and protection of tissues/organs