Histology Flashcards
What antibiotics target the 50s of bacteria?
Chloramphenicol Erythromycin (Macrolides) Lincosamides (Clindamycin) Linezolid Streptogramins
What antibiotics target the 30s of bacteria?
Aminoglycosides (Streptomycin)
Tetracycline
Buy AT 30
What is the Command Center of the Cell?
Nucleus
The outer nuclear membrane is continuous with what other structure in the cell?
Endoplasmic Reticulum
What form of chromatin is most abundant?
Euchromatin
Where is the site of DNA transcription?
Nucleus
What is responsible for ribosomal RNA Synthesis?
Nucleolus
What form of chromatin is transcriptionally inactive?
Heterochromatin
What is responsible for ribosome assembly?
Nucleolus
A complex of DNA, histone, and non-histone proteins?
Chromatin
Where is the site of DNA replication?
Nucleus
It is a double membrane and continuous with the ER
Nuclear envelope
Allows the passage of Nucleus to the Cytoplasm
Nuclear Pore
Where exactly can you find inactive DNA?
Fibrillar Center
Where can you find maturing ribosomes?
Granular Zone
Pars Granulosa
Where can you find newly transcribed rRNA where it is bound to ribosomal proteins?
Dense Fibrillar Zone
Pars Fibrosa
- Site of DNA replication and transcription of DNA into precursors of RNA molecules
- Contains all enzymes required for replication and repair of newly synthesized DNA
- Transcription and processing of precursor RNA molecules
Nucleus
Double stranded helical molecule that carries the genetic information of the cell
DNA
Positively charged proteins important in forming the nucleosome and solenoid fibers in chromatin
Histone proteins
Basic repeating unit of the chromatin fiber
Nucleosome
Enzymes involved in nuclear functions
Nonhistone proteins
Condensed/Dark
Inactive
Barr Bodies
Heterochromatin
Dispersed/Light
Actively transcribed
Euchromatin
A patient with Klinefelter’s Syndrome will have how many Barr Bodies?
1
47 XXY
