Plant physiology
⏱ ~3-min readAceMark Guide
What this topic is really about
Chloroplasts are the specific organelles where photosynthesis occurs because they contain chlorophyll to capture light energy and synthesize sugars. In contrast, mitochondria are responsible for cellular respiration and ATP generation, while ribosomes are the sites of protein synthesis.
Most transpiration occurs through stomata, which are microscopic pores on leaf surfaces that open to facilitate gas exchange for photosynthesis. While lenticels also allow for water loss in woody stems, they account for only a tiny fraction of total transpiration compared to stomata.
See the mechanism
Chloroplasts are the specific organelles where photosynthesis occurs because they contain chlorophyll to capture light energy and synthesize sugars. A diagram for this topic isn't available yet — the worked example below walks the same reasoning step by step.
An exam-style question, fully explained
Photosynthesis occurs in the:
- Identify what the question tests: Photosynthesis occurs in the:.
- Chloroplasts are the specific organelles where photosynthesis occurs because they contain chlorophyll to capture light energy and synthesize sugars.
- In contrast, mitochondria are responsible for cellular respiration and ATP generation, while ribosomes are the sites of protein synthesis.
Traps the examiner sets
- Read each option carefully — distractors on Plant physiology are designed to look plausible.
- Re-check the exact wording of the question stem before committing to an answer.
- Watch the qualifiers ("always", "only", "except") that flip a correct-looking option.
Test your recall
Answer each from memory — you'll see instantly whether you're right and why.
Run a focused 10-question mini-mock on Plant physiology and see it stick.
Practice more of this topic →