Cytoplasmic Membrane Systems MCQ

Test your knowledge with important Cytoplasmic Membrane Systems MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Cytoplasmic Membrane Systems MCQs at Bissoy

• ‘Stroma targeting domain’ is located in the ________________
  ক

  chloroplast

  খ

  mitochondria

  গ

  peptide

  ঘ

  transit peptide
• Most proteins destined for uptake by the chloroplasts are synthesized with a ________________
  ক

  removable C-terminal sequence

  খ

  removable N-terminal sequence

  গ

  removable hydrophobic tail

  ঘ

  removable hydrophilic tail
• In how many subcompartments of the chloroplasts, can the proteins be delivered?
  ক

  2

  খ

  4

  গ

  6

  ঘ

  8
• Following its entry into the mitochondrial matrix, the peptide is _______________
  ক

  degraded

  খ

  converted to phagosome

  গ

  folded to its native conformation

  ঘ

  hydrolyzed
• Hsp 70 and Hsp 90 are ____________ involved in the mitochondrial uptake of proteins.
  ক

  chaperones

  খ

  receptors

  গ

  ligands

  ঘ

  glycolipids
• Mitochondrial matrix proteins have a target sequence, called presequence located at __________
  ক

  N-terminus

  খ

  C-terminus

  গ

  interstitial site

  ঘ

  center of the sequence
• Most of the proteins of mitochondria are synthesized in the ______________
  ক

  mitochondrial matrix

  খ

  mitochondrial membrane

  গ

  cytosol

  ঘ

  medial cisternae
• For which of the following organelles, the proteins to be imported remain in their native folded state?
  ক

  Peroxisomes

  খ

  Mitochondrion

  গ

  Chloroplast

  ঘ

  Endoplasmic reticulum
• Eough endoplasmic reticulum imports its proteins posttranslationally.
  ক

  True

  খ

  False
• Mycobacterium tuberculosis inhibits the fusion of its phagosome with _________________ following phagocytosis.
  ক

  membrane

  খ

  lysosome

  গ

  endosome

  ঘ

  chromosome
• ‘Niemann–Pick type C disease’ is caused due to deficiency of a specific ________________
  ক

  protein

  খ

  receptor

  গ

  ligand

  ঘ

  gene
• Where do the materials ingested by endocytosis, reach after travelling through the late endosome?
  ক

  nucleus

  খ

  lysosome

  গ

  mitochondria

  ঘ

  early endosome
• Receptors dissociate from their bound ligands as a result of ________________
  ক

  high H+ concentration

  খ

  low H+ concentration

  গ

  high Cl– concentration

  ঘ

  low Cl– concentration
• Transformation from an early to a late endosome is characterized by a decrease in ______________
  ক

  mobility

  খ

  lipid content

  গ

  pH

  ঘ

  protein content
• Late endosomes are located near the _____________
  ক

  membrane

  খ

  nucleus

  গ

  mitochondria

  ঘ

  peroxisomes
• Following internalization, vesicle–bound materials are transported to _________________
  ক

  nucleus

  খ

  peroxisomes

  গ

  lysosomes

  ঘ

  endosomes
• Receptor down regulation leads to a decrease in the sensitivity of the cell towards further stimulation.
  ক

  True

  খ

  False
• Dynamin is a _____________________
  ক

  adaptor molecule

  খ

  accessory protein

  গ

  integral membrane protein

  ঘ

  phospholipids
• Which adaptor molecule operate in clathrin–mediated endocytosis?
  ক

  GGA

  খ

  AP1

  গ

  AP2

  ঘ

  Sar1
• A molecule of clathrin has a ______________ structure.
  ক

  triskelion

  খ

  spherical

  গ

  cylindrical

  ঘ

  polygonal
• Receptor–mediated endocytosis (RME) leads to the formation of ___________ coated pits.
  ক

  clathrin

  খ

  lipid

  গ

  lysosome

  ঘ

  mannose
• The process in which cell uptakes extracellular material bound to cell surface receptors is known as __________________
  ক

  phagocytosis

  খ

  pinocytosis

  গ

  receptor–mediated endocytosis

  ঘ

  bulk–phase endocytosis
• Which of the following is a type of endocytosis?
  ক

  Pinocytosis

  খ

  Phagocytosis

  গ

  Receptor-mediated endocytosis

  ঘ

  All of the mentioned
• Endocytosis and phagocytosis refer to the same process.
  ক

  True

  খ

  False
• Plant vacuoles are also sites of intracellular digestion.
  ক

  True

  খ

  False
• Water enters the vacuole by ____________
  ক

  reverse osmosis

  খ

  osmosis

  গ

  active diffusion

  ঘ

  passive diffusion
• Tonoplast is a ___________
  ক

  membrane

  খ

  toxic compound

  গ

  sphingolipid

  ঘ

  glycoprotein
• Which of the following is a toxic by-product stored in the plant cell vacuole that is clinical importance?
  ক

  oxytocin

  খ

  sialic acid

  গ

  digitalis

  ঘ

  tonoplast
• In plant cells, by-products of the metabolic pathways are stored in _____________
  ক

  vacuole

  খ

  mitochondrion

  গ

  chloroplast

  ঘ

  nucleus
• 90% of the volume of a plant cell is occupied by the vacuole.
  ক

  True

  খ

  False