Cell Biology - Epithelium

Question 0

The outer nuclear membrane is continuous with what structure in the cell

Answer 0

Endoplasmic reticulum

Question 1

Command center of the cell

Answer 1

Nucleus

Question 2

Most abundant form of chromatin

Answer 2

Euchromatin

Question 3

Site of DNA transcription

Answer 3

Nucleus

Question 4

Responsible for ribosomal RNA synthesis

Answer 4

Nucleolus

Question 5

Transcriptionally inactive form of chromatin

Answer 5

Heterochromatin

Question 6

Complex of DNA, histone and non-histone protein

Answer 6

Chromatin

Question 7

Refers to Barr bodies

Answer 7

Heterochromatin

Question 8

Double membrane, continuous with the ER

Answer 8

Nuclear envelope

Question 9

Allows passage of nucleus to the cytoplasm

Answer 9

Nuclear pore

Question 10

Three zones of Nucleolus

Answer 10

Pars granulosa - maturing ribosomes
Pars fibrosa - active zone
Fibrillar center - inactive DNA

Question 11

Site of DNA replication and transcription of DNA into precursors of RNA molecules

Answer 11

Nucleus

Question 12

Double stranded helical molecule that carries the genetic information of the cell

Answer 12

DNA

Question 13

Positively charged proteins important in forming the nucleosome and solenoid fibers in chromatin

Answer 13

Histone proteins

Question 14

Basic repeating unit of chromatin fiber

Answer 14

Nucleosome

Question 15

Barr bodies in Klinefelter syndrome

Answer 15

One - 47 XXY

Question 16

Cell structure that contains their own set of DNA

Answer 16

Mitochondria

Question 17

Site of post-transitional modification

Answer 17

Golgi apparatus

Question 18

Site of sequestration and release of Calcium ions in striated muscles

Answer 18

Smooth endoplasmic reticulum

Question 19

Consists if large and small subunits

Answer 19

Free ribosomes

Question 20

Site for synthesis of steroid hormones, phopholipids and TAG

Answer 20

Smooth Er

Question 21

Protein sorting and packaging site

Answer 21

Golgi apparatus

Question 22

Site of synthesis of secretory proteins, membrane bound proteins and lysosomal enzymes

Answer 22

Rough ER

Question 23

Involved in production of CoA, TCA, beta oxidation and oxidative phosphorylation

Answer 23

Mitochondria

Question 24

Site of ATP synthesis

Answer 24

Mitochondria

Question 25

Site of drug detoxification and fatty acid elongation

Answer 25

Smooth ER

Question 26

Stacks of membranous cisternae with CIS and TRANS face

Answer 26

Golgi apparatus

Question 27

Non-membrane bound vesicle, site of mRNA translation into amino sequence.

Answer 27

Free Ribosome

Question 28

Site of cytosolic and organellar protein

Answer 28

Free Ribosomes

Question 29

Disease associated with mitochondrial genome defect - muscle weakness and pain, seizures, hemiparesis and dementia

Answer 29

MELAS - mitochondrial encephalopathy lactic acidosis and stroke like episodes

Question 30

Cell structure abundant in ovaries, testes and adrenals

Answer 30

Smooth ER

Question 31

Cell structure abundant in neurons, pancreas and thyroid

Answer 31

Rough ER

Question 32

Cell structure abundant in red muscle fiber

Answer 32

Mitochondria

Question 33

Cell's garbage disposal system

Answer 33

Lysosome

Question 34

Contains oxidative enzyme and synthesis of hydrogen peroxide

Answer 34

Peroxisomes

Question 35

Contains hydrolytic enzymes

Answer 35

Lysosome

Question 36

Involved in beta oxidation of long chain fatty acid

Answer 36

Peroxisome

Question 37

Suicide bags of the cell

Answer 37

Lysosomes

Question 38

Participate in bile acid synthesis

Answer 38

Peroxisomes

Question 39

Acid hydrolase is the major protein

Answer 39

Lysosomes

Question 40

Enzymes are produced in free ribosomes

Answer 40

Peroxisomes

Question 41

Enzymes are produced in the RER

Answer 41

Lysosomes

Question 42

Tumor markers, link between the extracellular matrix, cytoplasm and nucleus

Answer 42

Intermediate filament

Question 43

Structure composed of actin

Answer 43

Microfilaments

Question 44

Consists of circularly arranged A and B tubulin proteins

Answer 44

Microtubule

Question 45

Thinnest of all cytoskeleton

Answer 45

Microfilaments

Question 46

Involved in spindle formation during mitosis and meiosis

Answer 46

Microtubules

Question 47

Ciliary and flagellar movement

Answer 47

Microtubules

Question 48

Involve in muscle contraction

Answer 48

Microfilaments - actin and myosin

Question 49

Function inhibited by Amanita mushroom toxin

Answer 49

Microfilaments

Question 50

Associated with Chediak-Higashi syndrome

Answer 50

Microtubules

Question 51

Tumor marker: epithelial cells - squamous carcinoma and adenocarcinoma

Answer 51

Cytokeratin

Question 52

Tumor marker: endothelial cells,vascular smooth muscle, fibroblast and chondroblast

Answer 52

Vimentin

Question 53

Tumor marker: skeletal and smooth muscle

Answer 53

Desmin

Question 54

Tumor marker: neurons

Answer 54

Neurofilament

Question 55

Tumor marker: glial cells

Answer 55

Glial Fibrillar Acidic Protein

Question 56

Tumor marker: inner membrane of nuclear envelope

Answer 56

Laminins A,B, C

Question 57

MAP: ATPase activity for movement of vesicles toward axon terminal - anterograde transport

Answer 57

Kinesin

Question 58

MAP: ATPase activity toward the minus end - retrograde transport

Answer 58

Dynein

Question 59

MAP: ATPase activity for elongation of nerve axons

Answer 59

Dynamin

Question 60

Drug that acts in the microtubules of fungal cells

Answer 60

Griseofulvin

Question 61

Anti-inflammatory drug acts on microtubules of cells

Answer 61

Colchicine

Question 62

Anti-cancer drugs that acts on the microtubules of cancer cells

Answer 62

Vinblastine Vincristine Taxanes

Question 63

Keratinized squamous epithelium is only present in the?

Answer 63

Skin, Tongue and Lips

Question 64

Eptihelium: sweat glands, developing ovarian follicles

Answer 64

Stratified cuboidal