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Which organelle is found ONLY in plant cells?
Mitochondria
Chloroplast
Lysosome
Nucleus
Mitochondria
Chloroplasts are specialized organelles found exclusively in plant cells and some algae, responsible for photosynthesis. The official answer key provided in the prompt is scientifically incorrect, as Mitochondria are present in both plant and animal cells.
Chloroplasts are specialized organelles found exclusively in plant cells and some algae, responsible for photosynthesis. The official answer key provided in the prompt is scientifically incorrect, as Mitochondria are present in both plant and animal cells.
A chloroplast is like a solar panel installed on a roof; it captures sunlight to generate electricity (or in this case, chemical food) for the building (the cell).
P-C-S: Plant-Chloroplast-Sunlight.
6CO2тАЛ+6H2тАЛOlightтАЛC6тАЛH12тАЛO6тАЛ+6O2тАЛ тАФ Overall equation for photosynthesis in chloroplasts
Chloroplasts contain chlorophyll pigments that absorb light energy to drive the chemical reaction of photosynthesis. The process converts solar energy into chemical energy stored in glucose: 6CO2тАЛ+6H2тАЛO+light┬аenergyтЖТC6тАЛH12тАЛO6тАЛ+6O2тАЛ.
Chloroplasts are the site of photosynthesis.
They contain their own DNA and ribosomes.
Mitochondria perform cellular respiration in both plants and animals.
Enables autotrophic nutrition by producing glucose
Produces oxygen as a byproduct of water photolysis
Primary production in terrestrial ecosystems
Oxygen generation for aerobic respiration
| Feature | Mitochondria | Chloroplast |
|---|---|---|
Presence in Plant vs Animal | Present in both | Plant only |
The official key provided in the prompt (Option A) is scientifically erroneous. The correct answer for 'Found ONLY in plant cells' is B (Chloroplast).
Lysosomes are primarily found in animal cells, though some plant vacuoles perform similar degradative functions.
The Nucleus is present in all eukaryotic cells.
B is correct тАФ Chloroplasts are specialized organelles found exclusively in plant cells used for photosynthesis.
Always verify official keys against standard biology textbooks like NCERT; if a question has a factual error, prioritize the biological consensus over the flawed official key in your private studies.
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