Companion cells of phloem are found in (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms

Companion cells of phloem are found in (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms
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Angiosperms
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Companion cells of phloem are found in – (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms

Description : Companion cells of phloem are found in – (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms

Last Answer : (4) Angiosperms Explanation: Only in angiosperms are sieve tubes and companion cells found in the plaloern. In other vascular plants, parenchyma cells function in the same way as companion cells (that ... living protoplasm), but they are not derived from the same mother cell as the sieve element.

Which one is a wrong statement? (a) Haploid endosperm is typical feature of Gymnosperms. (b) Brown algae have chlorophyll a and c and fucoxanthin. (c) Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms. (d) Mucor has biflagellate zoospores

Description : Which one is a wrong statement? (a) Haploid endosperm is typical feature of Gymnosperms. (b) Brown algae have chlorophyll a and c and fucoxanthin. (c) Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms. (d) Mucor has biflagellate zoospores

Last Answer : (d) Mucor has biflagellate zoospores

Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Description : Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Last Answer : (b) most of angiosperms and few gymnosperms

Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Description : Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Last Answer : (b) most of angiosperms and few gymnosperms

Phloem in gymnosperms lacks (a) both sieve tubes and companion cells (b) albuminous cells and sieve cells (c) sieve tubes only (d) companion cells only.

Description : Phloem in gymnosperms lacks (a) both sieve tubes and companion cells (b) albuminous cells and sieve cells (c) sieve tubes only (d) companion cells only.

Last Answer : (a) both sieve tubes and companion cells

Phloem in gymnosperms lacks (a) both sieve tubes and companion cells (b) albuminous cells and sieve cells (c) sieve tubes only (d) companion cells only

Description : Phloem in gymnosperms lacks (a) both sieve tubes and companion cells (b) albuminous cells and sieve cells (c) sieve tubes only (d) companion cells only

Last Answer : (a) both sieve tubes and companion cells

The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Sperrnatophyta (4) Thallophyta

Description : The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Sperrnatophyta (4) Thallophyta

Last Answer : (1) Pteridophyta Explanation: Prothallus is usually the gametophyte stage in the life of a fern or other pteridophyte. The prothallium develops from a germinating spore. It is a short-lived and inconspicuous heart-shaped structure.

126.Plant group with largest ovule, largest tree and largest gametes is (a) gymnosperm (b) angiosperm (c) bryophyta (d) pteridophyta.

Description : 126.Plant group with largest ovule, largest tree and largest gametes is (a) gymnosperm (b) angiosperm (c) bryophyta (d) pteridophyta.

Last Answer : a) gymnosperm

The plant group that produces spores and embryo but lacks vascular tissues and seeds is (a) Pteridophyta (b) Rhodophyta (c) Bryophyta (d) Phaeophyta.

Description : The plant group that produces spores and embryo but lacks vascular tissues and seeds is (a) Pteridophyta (b) Rhodophyta (c) Bryophyta (d) Phaeophyta.

Last Answer : (c) Bryophyta

Which of the following plant kingdom is called ‘amphibians’? (a) Pteridophyta (b) Thallophyta (c) Tracheophyta (d) Bryophyta

Description : Which of the following plant kingdom is called ‘amphibians’? (a) Pteridophyta (b) Thallophyta (c) Tracheophyta (d) Bryophyta

Last Answer : (d) Bryophyta

The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Spermatophyta (4) Thallophyta

Description : The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Spermatophyta (4) Thallophyta

Last Answer : Pteridophyta

Companion cells in gymnosperms? -Biology

Description : Companion cells in gymnosperms? -Biology

Last Answer : answer:

State the function of a) sieve tubes b) sieve plate c) companion cells d) phloem fibres.

Description : State the function of a) sieve tubes b) sieve plate c) companion cells d) phloem fibres.

Last Answer : a) Sieve tubes: They play an important role in the conduction of food. b) Sieve plate: It allows the food to pass through the pores. c) Companion cells: They control the passage of food through the phloem. d) Phloem fibres: They provide tensile strength to the plant body.

Function of companion cells is (a) providing energy to sieve elements for active transport (b) providing water to phloem (c) loading of sucrose into sieve elements by passive transport (d) loading of sucrose into sieve elements.

Description : Function of companion cells is (a) providing energy to sieve elements for active transport (b) providing water to phloem (c) loading of sucrose into sieve elements by passive transport (d) loading of sucrose into sieve elements.

Last Answer : (d) loading of sucrose into sieve elements.

Function of companion cells is (a) providing energy to sieve elements for active transport (b) providing water to phloem (c) loading of sucrose into sieve elements by passive transport (d) loading of sucrose into sieve elements.

Description : Function of companion cells is (a) providing energy to sieve elements for active transport (b) providing water to phloem (c) loading of sucrose into sieve elements by passive transport (d) loading of sucrose into sieve elements.

Last Answer : (d) loading of sucrose into sieve elements.

The principal pathway of water translocation in angiosperms is (a) sieve cells (b) sieve tube elements (c) xylem vessel system (d) xylem and phloem

Description : The principal pathway of water translocation in angiosperms is (a) sieve cells (b) sieve tube elements (c) xylem vessel system (d) xylem and phloem

Last Answer : a) sieve cells

which of the following structures are found in gymnosperms but not in angiosperms? -General Knowledge

Description : which of the following structures are found in gymnosperms but not in angiosperms? -General Knowledge

Last Answer : Cones are found in gymnosperms but not in angiosperms.

Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes

Description : Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes

Last Answer : Ans. ((b))

Difference between gymnosperms and angiosperms -Biology

Description : Difference between gymnosperms and angiosperms -Biology

Last Answer : answer:

$ Angiosperms produce seeds, but do not produce fruits. ! Fruit and seed formation occurs in Gymnosperms.

Description : $ Angiosperms produce seeds, but do not produce fruits. ! Fruit and seed formation occurs in Gymnosperms.

Last Answer : $ Angiosperms produce seeds, but do not produce fruits. ! Fruit and seed formation occurs in Gymnosperms. A. ... wrong D. If both As and R are wrong.

$ Tracheophytes are the plants with vascular tissues. ! Tracheophytes are of three types (i) Pteridophytes (ii) Gymnosperms (iii) Angiosperms

Description : $ Tracheophytes are the plants with vascular tissues. ! Tracheophytes are of three types (i) Pteridophytes (ii) Gymnosperms (iii) Angiosperms

Last Answer : $ Tracheophytes are the plants with vascular tissues. ! Tracheophytes are of three types (i) Pteridophytes (ii ... D. If both As and R are wrong.

Are tangerines angiosperms or gymnosperms?

Description : Are tangerines angiosperms or gymnosperms?

Last Answer : Feel Free to Answer

Which of the following are mostly woody trees, always perennials and never herbs or annuals? (a) Angiosperms (b) Gymnosperms (c) Pteridophytes (d) Bryophytes

Description : Which of the following are mostly woody trees, always perennials and never herbs or annuals? (a) Angiosperms (b) Gymnosperms (c) Pteridophytes (d) Bryophytes

Last Answer : Ans:(b)

How do angiosperms differ from gymnosperms?

Description : How do angiosperms differ from gymnosperms?

Last Answer : First, the seeds of the angiosperms, a more recently evolved and highly successful division of the tracheophytes, are enclosed within a protective chamber, the ovary. A ripened ovary containing ... support. In conifers, the single xylem elements, the tracheids, represent a more primitive condition 

Classify the following into gymnosperms and angiosperms. Wheat, pinus, bean, Cycas

Description : Classify the following into gymnosperms and angiosperms. Wheat, pinus, bean, Cycas

Last Answer : Pinus, Cycas – Gymnosperms Wheat, bean – Angiosperms

The species that flower are called -------? A. Gymnosperms B. Bryophytes C. Angiosperms (Answer)

Description : The species that flower are called -------? A. Gymnosperms B. Bryophytes C. Angiosperms (Answer)

Last Answer : C. Angiosperms (Answer)

Double fertilisation is characteristic of (a) angiosperms (b) anatropous (c) gymnosperms (d) bryophytes.

Description : Double fertilisation is characteristic of (a) angiosperms (b) anatropous (c) gymnosperms (d) bryophytes.

Last Answer : (a) angiosperms

Double fertilisation is exhibited by (a) algae (b) fungi (c) angiosperms (d) gymnosperms.

Description : Double fertilisation is exhibited by (a) algae (b) fungi (c) angiosperms (d) gymnosperms.

Last Answer : c) angiosperms

Pollination occurs in (a) bryophytes and angiosperms (b) pteridophytes and angiosperms (c) angiosperms and gymnosperms (d) angiosperms and fungi.

Description : Pollination occurs in (a) bryophytes and angiosperms (b) pteridophytes and angiosperms (c) angiosperms and gymnosperms (d) angiosperms and fungi.

Last Answer : (c) angiosperms and gymnosperm

Double fertilization is exhibited by : (1) Algae (2) Fungi (3) Angiosperms (4) Gymnosperms

Description : Double fertilization is exhibited by : (1) Algae (2) Fungi (3) Angiosperms (4) Gymnosperms

Last Answer : (3) Angiosperms

Double fertilization is exhibited by: a) Gymnosperms b) Algae c) Fungi d) Angiosperms

Description : Double fertilization is exhibited by: a) Gymnosperms b) Algae c) Fungi d) Angiosperms

Last Answer : d) Angiosperms

The name given to a structure present in angiosperms but lacking in gymnosperms is?

Description : The name given to a structure present in angiosperms but lacking in gymnosperms is?

Last Answer : ANSWER: OVARY or OVULARY

Identify the two components of Phloem tissue that help in transportation of food in plants (a) Phloem parenchyma & sieve tubes (b) Sieve tubes & companion cell. (c) Phloem parenchyma & companion cell. (d) Phloem fibres and sieve tubes

Description : Identify the two components of Phloem tissue that help in transportation of food in plants (a) Phloem parenchyma & sieve tubes (b) Sieve tubes & companion cell. (c) Phloem parenchyma & companion cell. (d) Phloem fibres and sieve tubes

Last Answer : (b) Sieve tubes & companion cell.

Gymnosperms are also called soft wood spermatophytes because they lack (a) cambium (b) phloem fibres (c) thick-walled tracheids(d) xylem fibres

Description : Gymnosperms are also called soft wood spermatophytes because they lack (a) cambium (b) phloem fibres (c) thick-walled tracheids(d) xylem fibres

Last Answer : (d) xylem fibres.

Gymnosperms are also called soft wood spermatophytes because they lack (1) Xylem fibres (2) Cambium (3) Phloem fibres (4) Thick-walled tracheids

Description : Gymnosperms are also called soft wood spermatophytes because they lack (1) Xylem fibres (2) Cambium (3) Phloem fibres (4) Thick-walled tracheids

Last Answer : (4) Thick-walled tracheids

Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall.

Description : Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall.

Last Answer : (b) vessel wall

Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall

Description : Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall

Last Answer : (b) vessel wall

A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is (a) cork cambium (b) vascular cambium (c) endodermis (d) pericycle.

Description : A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is (a) cork cambium (b) vascular cambium (c) endodermis (d) pericycle.

Last Answer : (b) vascular cambium

Pteridophyta do not have : -Science

Description : Pteridophyta do not have : -Science

Last Answer : Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. Examples include ferns, horsetails and club-mosses. ... Pteridophytes do not have seeds or flowers either, instead they also reproduce via spores.

Commelina benghalensis bearing shortlived blue coloured flowers is a a). Monocot b). Dicot c). Spermatophyte d). Pteridophyta

Description : Commelina benghalensis bearing shortlived blue coloured flowers is a a). Monocot b). Dicot c). Spermatophyte d). Pteridophyta

Last Answer : a). Monocot

Rhynia is a a. Fungi b. Lichen c. Pteridophyta d. None of the above

Description : Rhynia is a a. Fungi b. Lichen c. Pteridophyta d. None of the above

Last Answer : c. Pteridophyta

Companion cells function? -Biology

Description : Companion cells function? -Biology

Last Answer : answer:

Companion cells are associated with? -Biology

Description : Companion cells are associated with? -Biology

Last Answer : answer:

Companion cells are usually seen associatied with

Description : Companion cells are usually seen associatied with

Last Answer : Companion cells are usually seen associatied with A. Fibres B. Trancheids C. Vessels D. Sievenes

What are companion cells?

Description : What are companion cells?

Last Answer : Companion cells are living cells that are closely associated with sieve tubes. They control the passage of food through phloem.

Transport of food material in higher plants takes place through (a) companion cells (b) transfusion tissue (c) tracheids (d) sieve elements.

Description : Transport of food material in higher plants takes place through (a) companion cells (b) transfusion tissue (c) tracheids (d) sieve elements.

Last Answer : (d) sieve elements.

Companion cells are closely associated with (a) sieve elements (b) vessel elements (c) trichomes (d) guard cells.

Description : Companion cells are closely associated with (a) sieve elements (b) vessel elements (c) trichomes (d) guard cells.

Last Answer : a) sieve elements

Transport of food material in higher plants takes place through (a) companion cells (b) transfusion tissue (c) tracheids (d) sieve elements.

Description : Transport of food material in higher plants takes place through (a) companion cells (b) transfusion tissue (c) tracheids (d) sieve elements.

Last Answer : d) sieve elements.

Companion cells are closely associated with (a) sieve elements (b) vessel elements (c) trichomes (d) guard cells.

Description : Companion cells are closely associated with (a) sieve elements (b) vessel elements (c) trichomes (d) guard cells.

Last Answer : (a) sieve elements

Companion cells are usually seen associated with which tube? —

Description : Companion cells are usually seen associated with which tube? —

Last Answer : Sieve tube