Nutrition in Plants
Boojho & Paheli's Questions Answered
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Plants have different ways of getting their nutrition. While most plants make their own food through photosynthesis, some depend on other sources. Let's explore common questions about plant nutrition!
B
How do plants prepare their own food?
Plants make their own food through a process called photosynthesis. They use sunlight, carbon dioxide from the air, water from the soil, and a green pigment called chlorophyll to make sugar (glucose) which is their food.
P
Why can't our body make food from carbon dioxide, water and minerals like plants do?
Humans don't have chlorophyll, the green pigment that captures sunlight needed for photosynthesis. Our bodies aren't designed to convert sunlight into energy like plants do.
B
How do water and minerals absorbed by roots reach the leaves?
Water and minerals travel upward from roots to leaves through special tubes called xylem vessels that act like pipelines inside the plant's stem and branches.
P
What is special about leaves that they can synthesize food when other parts can't?
Leaves contain chlorophyll to capture sunlight and have tiny pores called stomata that take in carbon dioxide - both essential for photosynthesis. Other plant parts lack these special features.
B
I've seen plants with red, violet or brown leaves. Do these leaves also carry out photosynthesis?
Yes! These colorful leaves still contain chlorophyll underneath their red, violet or brown pigments. They perform photosynthesis just like green leaves, but their other colors mask the green.
B
If the pitcher plant is green and makes food through photosynthesis, why does it eat insects?
Pitcher plants grow in soil that lacks important nutrients like nitrogen. Though they make some food through photosynthesis, they trap and digest insects to get the extra nutrients they need from their bodies.
P
Are mosquitoes, bed bugs, lice and leeches that suck blood also parasites?
Yes, they are all parasites. They live on or inside other animals (hosts), take nutrients from them (like blood), and often cause harm to the host.
B
How do fungi get nutrients without having mouths like animals?
Fungi absorb food through their hyphae (thread-like tubes). These release digestive juices onto dead matter, breaking it down into liquid that fungi can absorb directly through their surface.
P
How do fungi suddenly appear during rainy season?
Tiny fungal spores are always floating in the air. During rainy season, when they land on warm, moist surfaces (like shoes, bread or wood), they find perfect conditions to grow and become visible.
B
Do fungi cause diseases?
Some fungi cause diseases in plants (like wheat rust) and humans (like athlete's foot). But many fungi are useful - mushrooms are food, yeast helps make bread, and some fungi are used in medicines.
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