★ Must-know
Roots anchor the plant and provide resistance to wind, but anchoring also makes the plant immobile and dependent on its environment.
Roots absorb water and mineral ions from the soil, providing mineral nutrition needed for plant life and photosynthesis.
Leaves are the main sites of gas exchange and photosynthesis.
Further detail
📌 Herbaceous flowering plants are small, with flexible, chlorophyll-bearing, sparsely branched stems, whereas woody plants are large, with rigid, brown, highly branched stems.
Roots anchor the plant but also make it immobile.
1. Which structures make up the vegetative apparatus of a flowering plant?
2. How can root anchorage both benefit a plant and limit its response to environmental conditions?
3. Why do fine roots and elongated root hairs near root tips improve a plant’s access to soil resources?
Which organs make up a flowering plant’s vegetative apparatus?
Roots, stem, and leaves.
What do roots absorb from soil?
Water and mineral ions.
How do fine roots and root hairs near their tips affect soil contact?
They greatly increase contact with soil water and minerals.
What is a mycorrhiza?
An intimate, lasting, mutually beneficial association between a plant root and a fungus of a different species.
Which pigments in chloroplast thylakoids capture photons for photosynthesis?
Chlorophyll pigments.
Where does raw sap form, and what does it contain?
It forms in roots from absorbed water and mineral salts.
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