have bordered pits for lateral movement of water.no cross walls for continuous flow/column of water.lignified/thickened to prevent collapsing.Ii) State the ways in which xylem vessels are adapted to their function Phloem vessels translocate manufactured food from leaves to other parts of the body.xylem vessels and tracheids transport water and mineral salts from the soil.State the differences between the internal structure of a root and a stem.Ĭ) i) Name the transport structures of a flowering plant some have hollow pith or pith is absent.vascular bundles are many and scattered.
both have epidermis, cortex, pericycle and vascular bundles.I) Give the similarities and differences between a monocotyledonous and are thin walled to speed up rate of absorption of Water and mineral saltsĬ) i) Compare the internal structure of a dicotyledonous root and a monocotyledonous root.many mitochondria in cytoplasm to supply energy for active transport of mineral salts.the root hair is long/narrow/numerous to increase surface area for absorption of water and.Ii) State ways in which the root hairs are adapted to their functions There large number offers a large surface area for absorption of water and mineral salts.they are permeable to water and mineral salts hence are used to absorb Water and mineral.they are cells with elongated finger-like projections which are in contact with soil.oxygen and carbon IV oxideī) i) Describe the structure and function of root hair make nutrients move from one point to another.Ii) Explain the necessity of transport in plants and animals Movement of substances from one pan of the body to another.
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