Histo 1 Flashcards
The second name for the trilamllar lines
Unit membrane
Most abundant component in the cell membrane
Protein 60%
Types of protein found in the cell membrane
Integral = intrinsic
Peripheral = extrinsic
Types of integral proteins
Trans membranous - small particles
The forming of CHO in the cell m
Glycolipids and glycoprotein
Cell coat = glycocalyx
Info about the cell coat:
LM:
EM:
Function:
LM: PAS magenta color
EM: fuzzy moderate electron dense
Function: RIA (recognition, receptor, immunity, adhesion)
Types of endocytosis
Phagocytosis- pinocytosis
Stains used in mitochondria
H&E: not seen
Iron H: dark blue
Janeous green: green
Histochemically: succinic dehydrogynase
The inner membrane of the mitochondria contains
Respiratory and electron transport enzyme
The result of negative stain method
Inner membrane sphere or elementary particles contain phosphorylaion enzymes
Functions of mitochondria
B oxidation of short fa
Contains all types of enzymes اللي احنا ذكرناهم
Em of rER
flattened membranous cisternae
Em of sER
Anastmosing network of tubules
Types of vesicles in Golgi apparatus
Micro = transfer coming from rER
Macro = secretory going to the lysosoms or exocytosis
Function of golgi ———> hint 5
Concentrate & modify proteins by adding CHO & sulfate.
Storage, modification & packaging the excretory products.
Makes lysosomes.
Sorting out proteins.
Recycle the cell membrane and keeps it and the cell coat in a good condition.
What are lysosomes?
Membranous cell organelle contains large variety of acid hydrolase intracytoplasmic digestion
Stains of lysosome
H & E: not seen
Histochemically: acid phosphatase
Fate of residual bodies in autophagic vacuole
Lipofuscin pigment or wear & tear pigment
Functions of lysosomes
Digestion within cells
Defensive mechanisms
Removal of old organelles
Change inactive hormones to active ones
Help sperm to penetrate ovum
Lysosomal storage disease
Tay sach’s: low hexosamindase
Gaucher: low glycosidase
Gout: caused by urate crystals
Peroxisomes contain
D amino acid oxidase
Hydroxy oxidase
Uricase enzyme
Catalase enzyme
Functions of peroxisomes
B oxidation of long chain fa
Formation of bile acid
Metabolism of alcohol
Segregate H2O2
