★ Must-know
📌 Starch is a storage form of glucose and is not the initial product of photosynthesis.
Further detail
Light energy → photosynthesis → organic matter from mineral matter
★ Must-know
At the scale of a leaf, the area producing glucose can be identified because photosynthesis occurs only in illuminated areas.
Photosynthesis occurs in chlorophyllous parenchyma tissues and in chlorophyllous cells containing chloroplasts.
After exposure to light, starch grains can be seen inside chloroplasts, indicating that chloroplasts are the organelles where plant organic matter is produced.
Further detail
1. How do photoautotrophs obtain the organic matter they need for growth?
2. Which statement correctly describes starch in relation to photosynthesis?
3. A leaf has one region exposed to light and another kept in darkness. Which region is expected to produce glucose?
What do photoautotrophs use to produce organic matter?
Light energy
From what do photoautotrophs produce organic matter by photosynthesis?
Mineral matter including carbon dioxide, water, and mineral salts
What is starch in relation to glucose?
A storage form of glucose
Is starch the initial product of photosynthesis?
No, it is not the initial product
How can the glucose-producing area in a leaf be identified?
It is the illuminated area where photosynthesis occurs.
In which tissues does photosynthesis occur?
In chlorophyllous parenchyma tissues and chlorophyllous cells with chloroplasts.
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