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XILEMA Y FLOEMA

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Regina Ochoa

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TEJIDOS VASCULARES


TEJIDOS VASCULARESVersión en línea XILEMA Y FLOEMA por Regina Ochoa 1 What is the primary function of the xylem in vascular plants? a Transport water and minerals from roots to shoots b Protect plant from desiccation c Store sugars d Conduct sugars from leaves to roots 2 What is the primary function of the phloem in vascular plants? a Transport sugars and organic nutrients throughout the plant b Absorb water at roots c Store minerals d Provide structural support 3 Which cells form long tubes with perforated plates in angiosperms? a Traqueids b Parenchyma cells c Sclerenchyma fibers d Vessel elements 4 Which cells are typical conduction elements in ferns and gymnosperms? a Sieve tubes b Phloem companion cells c Traqueids d Xylem parenchyma 5 What tissue type makes up the transport system in plants? a Endodermis and cortex b The vascular tissue system (xylem and phloem) c Ground tissue only d Dermal tissue only 6 Which is the term for the central axis containing vascular tissues in stems? a Stele (stela) b Dermal system c Cortex d Peridermis 7 What is the main distinguishing feature between vascular and non-vascular plants? a Nucleus-containing cells only b Presence of a water-conducting system (xylem and phloem) c Flowers d Seeds 8 What is a protostele? a A simple stele with xylem and phloem and no medulla b A peripheral dermal layer only c A leaf type d A root tip structure 9 What is a siphonostele? a A leaf epidermis structure b A seed type c A root hair arrangement d A cylinder of vascular tissue with xylem and phloem around a pith 10 Which term describes open vascular bundles arranged in a circle with medullary rays? a Siphonostele b Atactostela c Protostela d Eustela 11 Which term describes closed, disorganized vascular bundles with no central medulla? a Eustela b Protostela c Siphonostele d Actostela 12 What is the primary function of xylem in secondary growth? a Provide mechanical support and transport water in wood b Photosynthesis c Gas exchange only d Hormone storage 13 What is the primary function of phloem in relation to photosynthesis products? a Conduct water b Store sugars c Transport sugars from sites of production to other parts d Provide structural support 14 Which components form the vascular tissue system in angiosperms? a Epidermis and cortex b Parenchyma and sclerenchyma c Pith and cambium d Xylem and phloem 15 What are the cells that support the xylem and phloem called? a Parenchyma only b Collenchyma only c Aeriferous cells d Sclerenchyma and sclereids 16 Which tissue types are categorized as undifferentiated meristems? a Apical and lateral meristems b Ground and vascular tissues c Endodermis and peridermis d Dermal and cortex 17 Which tissues conduct water and minerals? a Parenchyma b Epidermis c Phloem d Xylem 18 Which tissues conduct organic products like sugars? a Xylem b Epidermis c Cortex d Phloem 19 What is the term for a vascular arrangement where xylem and phloem are separated by medullary rays? a Protostele b Eustele with open collateral bundles c Atactostele with scattered bundles d Siphonostele with pith 20 What does the term 'estela' refer to in plant anatomy? a A vascular bundle system in the stem or root b A root hair type c A leaf cuticle d A type of seed coat 21 Which group is described as having traqueras as primary conducting cells? a Algae b Angiosperms only c Pteridophytes and gymnosperms d Mosses Explicación 1 Xylem conducts water and minerals from roots upward. 2 Phloem moves sugars and organic compounds where needed. 3 Vessel elements are the main conduction cells in many angiosperms. 4 Traqueids are the main conducting cells in those groups. 5 The stele or vascular cylinder includes xylem and phloem. 6 Stele is the vascular cylinder within the axis. 7 Vascular plants have xylem and phloem for conduction. 8 Protostele is an early simple stele lacking medulla. 9 Siphonostele is a central cylinder of vascular tissue with pith. 10 Eustela refers to open collateral bundles in a ring. 11 Atactostela bundles are closed and disordered. 12 Xylem provides structural support in wood and conducts water. 13 Phloem distributes sugars produced during photosynthesis. 14 The vessel system consists of xylem and phloem. 15 Sclerenchyma fibers provide mechanical support. 16 Meristems are undifferentiated tissues driving growth. 17 Xylem conducts water and minerals from roots upward. 18 Phloem transports sugars from leaves to rest of plant. 19 Eustele describes ring-like open bundles. 20 Estela (stele) is the vascular system of axes. 21 Traqueids are common in pteridophytes and gymnosperms.

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TEJIDOS VASCULARESVersión en línea

por Regina Ochoa

What is the primary function of the xylem in vascular plants?

What is the primary function of the phloem in vascular plants?

Which cells form long tubes with perforated plates in angiosperms?

Which cells are typical conduction elements in ferns and gymnosperms?

What tissue type makes up the transport system in plants?

Which is the term for the central axis containing vascular tissues in stems?

What is the main distinguishing feature between vascular and non-vascular plants?

What is a protostele?

What is a siphonostele?

Which term describes open vascular bundles arranged in a circle with medullary rays?

Which term describes closed, disorganized vascular bundles with no central medulla?

What is the primary function of xylem in secondary growth?

What is the primary function of phloem in relation to photosynthesis products?

Which components form the vascular tissue system in angiosperms?

What are the cells that support the xylem and phloem called?

Which tissue types are categorized as undifferentiated meristems?

Which tissues conduct water and minerals?

Which tissues conduct organic products like sugars?

What is the term for a vascular arrangement where xylem and phloem are separated by medullary rays?

What does the term 'estela' refer to in plant anatomy?

Which group is described as having traqueras as primary conducting cells?