Practice question

MCQ

Question

What is the lumen of a chloroplast thylakoid?

Options

Choose one · Correct answer highlighted

The space between the two chloroplast-envelope membranes The fluid matrix surrounding all chloroplast structures The space enclosed by the thylakoid membrane Correct The region containing chloroplast DNA and ribosomes

Explanation

The thylakoid membrane encloses an internal space called the lumen. Thylakoids are flattened membranous sacs present within the chloroplast stroma.

Share this question

Discussion

Comments

0 comments

Please log in to join the discussion.

No comments yet. Be the first to start the discussion.

Related blogs

Guides and insights connected to this topic

Botany 06 Sep 2026

Photosynthesis in Higher Plants Biology Notes - Experiments, Light Reaction, Calvin Cycle, C3 and C4 Pathway and Factors Affecting Photosynthesis

Study photosynthesis in higher plants, including early experiments, light reactions, the Calvin cycle, C3 and C4 pathways, and key factors.

Botany 06 Sep 2026

Cell The Unit of Life Biology Notes - Cell Theory, Prokaryotic and Eukaryotic Cells, Cell Organelles, Nucleus and Chromosomes

Notes on Cell: The Unit of Life covering cell theory, prokaryotic and eukaryotic cells, cell organelles, the nucleus and chromosomes.

Cell Biology 29 Aug 2026

Chloroplasts Explained: Structure, Pigments, Light Reactions & How We’re Supercharging Plant Efficiency

Learn how chloroplasts power plant photosynthesis, their structure, pigments, and light reactions. Explore modern efforts to make plants more efficient.