Bio/Biochem · 2A

Cells and organelles

Content category 2A. 9 questions in 2 sets, each with reasoning for every answer choice.

Set 1 · Cell organelles

  1. Gap junctions vs. tight junctions vs. desmosomeseasy
  2. Peroxisome vs. lysosome functionseasy
  3. Signal sequences and rough ER targetingmedium
  4. Mannose-6-phosphate and lysosomal targetingmedium
  5. Microtubules vs. microfilaments vs. intermediate filamentseasy

Set 2 · Membrane transport

  1. Na⁺/K⁺-ATPase stoichiometryeasy
  2. Red blood cells in hypotonic solutioneasy
  3. Secondary active transport (SGLT)medium
  4. The ubiquitin–proteasome pathwaymedium