WorksheetsHISTOLOGY QUIZ #1
Total questions: 26
Worksheet time: 18mins
Target cell is described as which of the following?
Cell receiving the signal.
Integral to communication between cells within a given tissue.
Cells that sends the signal.
Elicit responses from targets in different tissues.
The figure is in what phase of Mitosis or Meiosis?
Mitosis: Anaphase
Meiosis: Anaphase I
Meiosis: Anaphase II
Mitosis: Telophase
Meiosis: Telophase II
What is the process before the cell starts to divide?
Mitosis
Interphase
DNA Replication
Cell Differentiation
What happens in the telophase of mitosis?
Two chromatids of each chromosome are pulled apart at the centromere, two asters of mitotic apparatus are pushed farther apart, and chromatids are pulled tightly to the center of cell.
Two sets of daughter chromosomes are pushed apart, mitotic apparatus dissolutes, new nuclear membrane develops around each set of chromosomes.
Microtubular spines of the aster fragment the nuclear envelope, multiple microtubules from the aster attach to the chromatids at centromeres, and forms a contractile ring of microfilaments.
Two asters of mitotic apparatus are pushed apart, molecular motors extend between spines and the cell pinches in two, midway between the two nuclei.
What are the two key features that characterized meiosis?
Formation of two identical DNA molecules and eventual formation of tetrads.
Involvement of two cell divisions and production of four haploid cells.
New combination of genes and production of four haploid cells.
DNA recombination and yielding of two cells that are the same genetically.
Considered as an extension of the Rough Endoplasmic reticulum.
Nuclear pores
Nuclear envelope
Chromatin
Smooth Endoplasmic reticulum
Which of the following does not describe Peroxisomes?
Functions in hydrogen peroxide metabolism
Presence of catalases
Membrane-limited, enzyme-containing vesicles
Responsible for proteolysis of malformed and ubiquitin-tagged proteins
Which of the following is/are incorrectly paired?
Golgi apparatus- functions in carbohydrate synthesis and in secretory processes.
Actin filaments are microfilaments interacting with myosin to bring about cellular movement.
Peroxisomes are responsible for lysis of malformed and ubiquitin-tagged proteins.
SER- important in lipid metabolism and steroid hormone synthesis.
Describe the difference in structure between the cell of a maple leaf and the cell of a squirrel.
The squirrel cell would be a rigid, thick shape with straight lines; and the maple leaf cell would be more flexible and loose with no defined shape.
The maple leaf cell would be a rigid, thick shape with straight lines; and the squirrel cell would be more flexible and loose with no defined shape.
The squirrel cell would be a rectangular shape; and the maple leaf cell would be more of a blob.
The squirrel cell would be green because of the presence of chloroplast, and the maple leaf cell would be clear or transparent.
In preparing tissue for microscopy, the following processes are done except for
Cell fractionation
Staining
Fixation
Embedding
DEHYDRATION
What structure in the plasma membrane participates in cell adhesion and recognition?
Carbohydrates
Glycocalyx
Integral membrane proteins
Transmembrane proteins
Peripheral membrane proteins
Production of cleavage furrow appears during
Anaphase
Prometaphase
Cytokinesis
Telophase
Which of the following tissue contains an abundant amount of Extracellular matrix?
Epithelial
Connective
Nervous
Muscle
What describes Muscle tissue?
Lines the surface of body cavities and glandular secretions
Support and protection of tissues/organs
Contains several types of fixed and wandering cells
Has elongated contractile cells
What binds the epithelial cells to the underlying basal lamina?
Desmosomes and gap junctions
Tight junction and Adherent junction
Connexons
Hemidesmosomes and Desmosomes
Hemidesmosomes
Which of the following is incorrectly paired?
Desmosomes- spot-like, not circular, structures between two cells.
Adherent or anchoring junctions- are sites of strong cell adhesions.
Gap junctions are channels for communication between adjacent cells.
Tight junctions serves as intercellular channels for flow of molecules.
This junction provides points linking the cytoskeletons of adjacent cells; strengthens and stabilizes nearby tight junction.
Zonula occludens
Macula adherens
Zonula adherens
Nexus
In blistering (bullous) disease, which junction are abnormal?
Gap junction
Hemidesmosomes
Tight junctions
Desmosome
A less common type of apical process usually best seen on the absorptive epithelial cells lining the male reproductive system as seen in the figure. This is
Cilia
Stereocilia
Basal Bodies
Microvilli
We are always protected from Helicobacter pylori causing gastric ulcer due to
Tight junctions
Hemidesmosomes
Desmosomes
Gap junctions
Which of the following is not a classification of stratified epithilia?
Simple
Squamous
Cuboidal
Columnar
Simple Cuboidal epithelium are found in what organ distribution?
Lining of intestine and gallbladder
Serous lining of cavities
Pericardium, Pleura, and Peritoneum
Covering of the ovary and Thyroid
All of the following epithelia functions for protection, except for
Stratified Cuboidal
Transitional epithelium
Simple columnar
Simple Squamous
Urothelium is also known as
Transitional epithelium
Simple columnar
Simple cuboidal
Stratified columnar
What is the lining of the conjunctiva?
Stratified Cuboidal Epithelium
Stratified Columnar epithelium
Simple Columnar Epithelium
Simple Stratified Cuboidal Epithelium
What is the epithelium of the figure?
(a)
