Xyle - Study guides, Class notes & Summaries

What are xylem? : Tubes that carry water and mineral ions in solution; water travels upwards from roots to leaves. They are formed from dead cells. How is water transported in the xylem? : THE COHESION-TENSION THEORY: 1)Water evaporates from the leaves- transpiration. 2)This creats tension which pulls more water into the leaf. 3)Water molecules are cohesive so the whole column of water moves upwards. 4)Water enters the stem via the roots. What is transpiration? : When water evaporates...

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What are xylem? - Answer Tubes that carry water and mineral ions in solution; water travels upwards from roots to leaves. They are formed from dead cells. How is water transported in the xylem? - Answer THE COHESION-TENSION THEORY: 1)Water evaporates from the leaves- transpiration. 2)This creats tension which pulls more water into the leaf. 3)Water molecules are cohesive so the whole column of water moves upwards. 4)Water enters the stem via the roots. What is transpiration? - An...

ISA CERTIFIED ARBORIST EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+ Acclimation - -gradual process by which a tree changes in its environment Angiosperm - -flowering plant Apical Dominance - -tendency for terminal buds to inhibit growth of lateral buds Apical Meristems - -located at the end of the shoot Bark - -protects branches & trunk of tree from injury Buffering Capacity - -ability to maintain pH Cambium - -layer of cells located between the phloem & xyle

BOT3015 EXAM 3 Marking Scheme 2024 100% Correct Brownian movement - Answer- molecules /ions in constant random motion Diffusion - Answer- movement of molecules or ions from region of higher concentration to region of lower concentration Molecules that are moving from a region of higher concentration to a region of lower concentration are said to be moving ______________________________ - Answer- Along a diffusion gradient molecules moving from regions of low to high concentration are sai...

AQA A Level Biology- Xylem and Phloem Exam 2024/2025 Questions Only Which Are Verified.

Which of these does NOT describe what is meant by the symbolism of language? - We can create and understand an infinite number of meaningful sentences What does combinatorial entailment mean? - Two or more stimulus relations can mutually combine to form new relations What is a *Cfunc*? - A contextual cue that specifies which stimulus functions should be transformed according to the specified relation What does mutual entailment mean? - Responding to a stimulus relation in one direction en...

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