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Biology & Geology (STEM)

Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Quiz

Lesson 1: Plant Immunity (Structural and Biochemical Defense) — Lesson quiz

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1.
Tyloses in plants are formed specifically as a result of:
Excessive transpiration on hot summer days
Deposition of suberin on epidermal cells
Proliferation of parenchyma cells into xylem vessels through pits following injury
Secretion of toxic phenolic compounds into phloem sieve tubes
2.
According to the Egyptian STEM biology syllabus, what is the exact scientific deduction regarding: Physiological vs. Structural Support in Plants?
Physiological support is temporary and completely dependent on water uptake into vacuoles via osmosis, while structural support is permanent via deposition of cellulose, lignin, or suberin
Both physiological and structural supports disappear immediately when the plant wilts
Structural support relies solely on turgor pressure of living parenchyma
Physiological support involves permanent deposition of lignin in stone cells
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