Cell. Flashcards
Most prominent organelle of cell?
Nucleus.
Which structure doesn’t contains nucleus?
Mature RBC.
In which structure, RNA processing and ribosomes synthesising takes place?
Nucleolous.
Marker enzyme of mitochondria is located where? Name it?
Inner membrane ,ATP synthase.
Which structure is a site of detoxification of drugs?
ER.
Marker enzyme of lysosomes?
Cathespin.
In which case , cathespin which is limited to interior of lysosomes get released out of cell?
Tumour metastasis.
In which case, mannose-6-phosphate is synthesised but can’t reach its targeting cell?
Inclusion cell (I-1) disease.
Protein packaging and secretion is done by?
Golgi complex.
Marker enzyme of golgi complex?
Galactosyl transferase.
Marker enzyme of cytoplasm?
Lactate dehydrogenase.
Marker enzyme of microsomes?
Glucose-6-phosphatase.
Mitochondria is absent in?
Erythrocyte.
Which part of mitochondria contains ETC?
Inner mitochondrial membrane.
Enzymes for citric acid cycle, urea cycle and heme synthesis are located in?
Fluid matrix.
Inner mitochondrial membrane contains cytochrome-P450 is involved in?
Steroidogenesis.
Which structure are prominent in leukocyte and platelets?
Peroxisomes.
Which enzymes destroy the free radicals formed from per oxidation of PUFA ?
Catalase and Peroxidase.
In which disease there is insufficient oxidation of VLCFA by peroxisomes?
Adrenoleukodystrophy.( Brown Schilder disease)
Disease due to defective peroxisomal metabolism of glyoxalate from glycine?
Primary hyperoxaluria.
Disease in which no transport of protein to peroxisomes is their due to which peroxisomes remains empty?
Zellweger syndrome.
Which structure plays a triggering role in apoptosis?
Mitochondria.
Name two ectoenzymes of plasma membrane?
Alkaline phosphatase and Nucleotide phosphatase.
Which type of phospholipid are prs on outer and inner side of plasma membrane ?
Outer- choline containing phospholipids.
Inner- ethanolamine and serine containing phospholipids.
Lateral movement of membrane describes which property of membrane?
Fluidity.
Fluidity of membrane enables which process ?
Exocytosis and Endocytosis.
Which enzymes catalysis flip-flop movement?
Flippases.( transfer of amino phospholipids)
Floppases catalyse outward movement.
Which substance can alter fluidity of membrane?
Cholesterol. With its increase , fluidity decreases
Which type of Fatty acid affects fluidity?
Unsaturated cis FA
Transmembrane protein works as?
Receptors.