Prelim Examination (2019) Flashcards
Nucleosome is composed of:
A. Long uncoiled strand of DNA
B. 6 histones folding on each other
C. Two chromosomes tightly bound together
D. 2 loops of DNA around histones
D. 2 loops of DNA around histones
Nucleosome is COILED, has 8 HISTONES
Choose which among these is a function of epithelial cells
A. Metabolism
B. Immune cells
C. Absorption
D. Distribution
C. Absorption
Immune and distribution are by blood, a special CONNECTIVE tissue while metabolism is for owel
Where does Krebs cycle takes place?
A. Matrix
B. Intermembrane space
C. Cytosol
D. Outer membrane
A. Matrix
Use to locate intracellular site of peroxidase
A. Enzyme histochemistry
B. Immunohistochemistry
C. PAS technique
D. NOTA
A. Enzyme histochemistry
What removes water from cells and tissues?
Dehydration
Which of the following is unicellular exocrine gland
Goblet Cell
Keratinized stratified squamous epithelium is
adapted for:
A. Absorption
B. Secretion
C. Protection
D. Excretion
C. Protection
What is color of the conglomerate of oxidized
lipids, phospholipids and organic molecules
under H&E stain?
Brownish-gold
Which of the ff commonly possess cilia that
move dust and mucus out of the airways of
the respiratory tract?
A. Pseudostratified columnar B. Stratified squamous C. Transitional D. Simple cuboidal E. Simple squamous
A. Pseudostratified columnar
This organelle is described as a “prelysosome”
for the influx of hydrogen into it causes it to
mature in the lysosome
A. Centrosome
B. Late Endosome
C. Multivesicular bodies
D. Perixosomes
B. Late Endosome
How many chromosomes are there in a
somatic cell?
A. 46
B. 23
C. 92
D. 100
A. 46
What type of epithelium has a dome shape on
its apical membrane?
A. Transitional
B. Pseudostratified
C. Epithiloid
D. Mesothelium
A. Transitional
The component of cell membrane that
contains hydrophilic heads and hydrophobic
tails.
Phospholipid
What is the pointed structure?
Centromere
Which of the following statements is true for
the structure above (RER)?
A. It is continuous with outer nuclear membrane B. It has cristae to maximize surface area for energy production C. It modifies proteins D. It has 9 triplets of microtubules
A. It is continuous with outer nuclear
membrane
Protein (adhesion & recognition)
Carbohydrates
Demonstrate lipofuscin
A.Human blood vessel
B. Human skin
C. Neuron
D. Smooth muscle
C. Neuron
Which feature is characterized with a mainly
protective role in the body?
A. Mucus
B. Multiple microvilli
C. Stratified
C. Stratified
Commonly used to locate lipids?
Sudan Stain
Simple squamous epithelium that lines
abdominal cavity:
Mesothelium
Stain for nuclei
Hematoxylin
mitosis except
Haploid
True of frozen section except
A. Uses carbon monoxide to make cells solid
B. Commonly uses h&e
C. Used for specimen adequacy
D. Sectioned in a microtome inside a cryostat
E. None of these
A. Uses carbon monoxide to make cells solid
Unicellular gland
A. Basket cell
B. Sertoli cell
C. goblet cell
C. goblet cell
Nuclear membrane starts to disintegrate with
further condensation of chromosomes
Prophase
In what stage of the interphase, checking of
damages of the DNA, and unreplicated DNA?
G2
Stains to exhibit lipids
A. Enzyme histochemistry B. Immunohistochemistry C. Pas technique D. H&E E. None of the above
E. None of the above
Abundance of cholesterol in lipid rafts function
to:
*BASA NALANG SA BOOK
Type of epithelium that lines the uterine tube
aiding movement of ova through them
Simple columnar ciliated
Duplication of Centrioles and synthesis of Prophase
mitotic spindles.
Prophase
What is shown in the figure above? (Nasa
gitna Ang chromosomes)
Metaphase
Males have the following chromosomes
22 autosome XY
The intracellular connection of the outermost
portion of two cell membranes that are tightly
connected
A.intermediate junction B. Desmosomes C. Tight junction D. Gap junction E. None of the choices
C. Tight junction
Most commonly use to locate glycogen
A. Enzymecytochemisty B. Immunohistochemistry C. Hematoxylin D. Fuelgen E. Pas
E. Pas
More specific technique
A. Direct immunohistochemistry
B. Indirect immunohistochemistry
E. Enzyme immunohistochemistry
NO ANSWER
Stains carbohydrates
A. PAS
B. H&E
A. PAS
Exhibits metachromasia, EXCEPT
A. Cartilage
B. Heparin-containing mas cells
C. Rer of plasma cells
D. Endothelium of bowman’s capsule
D. Endothelium of bowman’s capsule
Heat shock proteins
Chaperone mediated autophagy
Which is metaboliclly active and stores
nutrients:
A. Prophase B. Metaphase C. Telophase D. Anaphase E. Interphase
E. Interphase
An organelle that partially depends on nucleus
because it has its own DNA and RNA.
A. Golgi Apparatus B. Lysosome C. Ribosome D. Rough ER E. Mitochondria
E. Mitochondria
function of telomere
protect chromosome during cell division
The cell has been collecting abnormal cells
and has the potential on becoming a cancer
cell. Something something.. which will initiate
its death by apoptosis.
A. P B. Nucleus C. Mitochondria D. Lysosome E. Smooth ER
C. Mitochondria
Gathers light that passes thru the specimen
Condenser
Sebum
Holocrine
Which among the following structure is NOT
found on the apical surface of simple
epithelium
A. Microvilli
B. Stereocilia
C. Cilia
D. Desmosomes
D. Desmosomes
which of the following is true about merocrine
secretion
-destruction is through programmed cell death
-membrane bound vesicles bind to membrane
-secretory products accumulate in the mature
cells
-secretory products go to the apical portion
Where does mRNA translation occur?
A. Mitochondria B. Ribosomes C. Lysosome D. Inside the nucleus E. Centrosome
B. Ribosomes
Which of the following describes the secretory
mechanism by which sebum is produced?
A. Eccrine
B. Holocrine
C. Apocrine
D. Cytocrine
B. Holocrine
Paraffin
Embedding
Microscope to visualize whole tissue/organ:
light microscope
Greatest resolution
A. Electronic microscopy
B. Light
C. Both
D. Neither
A. Electronic microscopy
Which of the ff events does NOT occur in G1
phase of cell cycle?
A. Organelles are replicated in the cytoplasm
B. Checking for any unreplicated DNA
C. Cell is metabolically active
D. Cell is doing its expected function
B. Checking for any unreplicated DNA
The border that separates your epithelial cells
from the connective tissue?
Basal lamina
Dead skin sheds off because of what adhering
junction.
Desmosome
Freeze fracture
Integral proteins
What structure functions to connect two sister
chromatids of a condensed chromosome?
A. Centromere
B. Kinetochore
C. Dynamin
D. Telomere
A. Centromere
Nissl bodies
Responsible for dark staining of neurons
1 nanometer
None of the above. 1000 picometer
Which type of epithelium allows expansion
Transitional
Checkpoint: Cell will evaluate its replicative
property and availability of nutrients and
growth factor
A. G2 DNA damage checkpoint
B. G1 DNA damage checkpoint
C. Unreplicated DNA checkpoint
D. Restriction point
D. Restriction point
Which of the following organelles DOES NOT
have their own membrane:
a. Ribosomes
b. Peroxisomes
c. Lysosomes
d. Endosomes
a. Ribosomes
Lining in walls of capillaries and alveolar sacs:
simple squamous
Barr body
Heterochromatin X
What is the cell make-up of the gallbladder?
Simple columnar
Integral protein which transports molecules
from high to low concentrations, and involves
change in shape.
A. Channel B. Carrier C. Pump D. Peripheral E. Carbohydrate
B. Carrier
Basophilia except
A. Ergastoplasm B. Nucleoi C. Extracellular fibers D. Heterochromatin E.None of the above
C. Extracellular fibers
What could possibly develop as a result from
poliomyelitis?
scoliosis
Chromosome are forms of DNA in a cell that is
actively transcribing DNA to synthesize
proteins
False
Which test is best performed to locate
carbohydrates in the tissue?
PAS stain/test
Characteristic of epithelium?
Regenerate rapidly?
What type of tissue forms walls of capillaries
and air sacs of lungs?
Simple Squamous
Treatment with ascending concentration of
alcohol
Dehydration
What lining epithelium covers the mouth,
esophagus and vagina?
Stratified Squamous epithelium
Exhibits basophilia except:
A. Ergastoplasm
B. Extracellular fibers
C. Heterochromatin
D. None of the above
B. Extracellular fibers
Which of the following is incorrect regarding
the functions of Fixation:
a. preserves structural details
b. it disinfects
c. it prevents autolysis
d. it does not affect enzymatic activity
e. none of the choices
d. it does not affect enzymatic activity
Drug and alcohol metabolism
SER
