Q71.Match the LIST-I with LIST-II
List-I
A. Translation
B. Replication
C. ATP synthesis
D. Dark reaction of photosynthesis
List-II
I. Nucleus
II. Mitochondria
III. Stroma
IV. Cytoplasm
Options
(1) A-III, B-I, C-II, D-IV
(2) A-II, B-I, C-IV, D-III
(3) A-IV, B-II, C-III, D-I
(4) A-IV, B-I, C-II, D-III
Cellular Process Locations Matching Quiz
Translation, replication, ATP synthesis, and dark reaction occur in distinct cellular compartments: cytoplasm, nucleus, mitochondria, and stroma respectively.
Correct Answer
Option (4) A-IV, B-I, C-II, D-III correctly matches all processes to their locations.
This reflects prokaryotic-like translation in cytoplasm, DNA replication in nucleus, oxidative phosphorylation in mitochondria, and Calvin cycle in chloroplast stroma.
Option Breakdown
Process Locations Explained
Translation (Cytoplasm – IV): Ribosomes on rough ER or free in cytosol synthesize proteins from mRNA.
Replication (Nucleus – I): DNA polymerase duplicates genome during S-phase within nuclear envelope.
ATP Synthesis (Mitochondria – II): Electron transport chain and ATP synthase in inner membrane produce bulk cellular ATP.
Dark Reaction (Stroma – III): Calvin cycle enzymes fix CO₂ into glucose using light reaction products (ATP/NADPH).
Key Exam Distinctions
Dark reaction (light-independent) occurs in stroma, not thylakoids (light-dependent site); mitochondria handle aerobic respiration ATP, not cytoplasmic glycolysis alone.
