Practice qs Flashcards
What stain is used for lipid soluble (lipid) items?
Sudan stain
What fixatives are used to crosslink by perfusion?
Formaldehye and glutaraldehyde
Following centrifugation, at the top of the tube with anticoagulant is _______, while at the top of the tube without anticoagulant is _______.
Plasma, serum
What remains unstained in neutrophils in a Wright stain? How do RBCs stain?
Granules are unstained. RBCs (and thus other eosinophilic granules!) will stain greyish
What is the destination of proteins produced by free ribosomes?
Cytosol
Where are ribosomes made? Where do they reside after manufacture?
Nucleolus, reside on the surface of the nuclear envelope.
What kind of nucleus shape do columnar cells have?
Oval
What kind of nucleus shape do cuboidal cells have?
Round
The basement membrane is also called the _____ ______. It is similar to but is not the same as the ______ ______ which is found on muscle cells, adipocytes, and supporting cells of PNS.
Same as: basal lamina
NOT: external lamina
The relaxed urothelium is often confused with what cell type?
Stratified cuboidal
The A band contains?
Actin and Myosin
The I band contains?
Actin
The H band contains?
Myosin
Do neutrophil granules stain with H&E?
No
Monocytes and lymphocytes in peripheral blood can enter connective tissue where they become _____ and _____, respectively.
macrophages, lymphocytes
chondroblasts secrete _____, while osteoblasts secrete _____.
Type II collagen, Type I collagen
What are two roles of integrins in cell locomotion?
- As a transmembrane receptor connecting the extracellular matrix and the actin cytoskeleton
- As a signaling center controlling actin polymerization and organization
At the normal resting potential of a cell, which ion has the largest driving force across the cell membrane?
Ca2+
The power stroke is associated with the _______ of the hydrolysis products ADP and Pi from myosin.
displacement
Does the tension in titin increase with increasing sarcomere length in skeletal muscle?
Yes
