Description : Companion cells are closely associated with (a) sieve elements (b) vessel elements (c) trichomes (d) guard cells.
Last Answer : a) sieve elements
Last Answer : (a) sieve elements
Description : Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall.
Last Answer : (b) vessel wall
Description : Bordered pits are found in (a) sieve cells (b) vessel wall (c) companion cells (d) sieve tube wall
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.
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.
Last Answer : d) sieve elements.
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
Description : The cells which are closely associated and interacting with guard cells are - (1) Transfusion tissue (2) Complementary cells (3) Subsidiary cells (4) Hypodermal cells
Last Answer : (3) Subsidiary cells Explanation: Guard cells interact physiologically and mechanically with subsidiary cells. Guard cells are those which have chloroplasts and control the opening of stomata. But, subsidiary cells are those which support the guard cells and they do not have chloroplasts.
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.
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
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
Description : A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein
Last Answer : (a) enucleate condition
Description : A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein.
Description : What enlightenment philosopher is most closely associated with the idea that government have the responsibility to guard life liberty and property?
Last Answer : john Locke
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.
Description : At maturity, which of the following is non-nucleated? (a) Palisade cell (b) Cortical cell (c) Sieve cell (d) Companion cel
Last Answer : c) Sieve cell
Last Answer : (c) Sieve cell
Description : Companion cells are associated with? -Biology
Last Answer : answer:
Description : Companion cells are usually seen associated with which tube? —
Last Answer : Sieve tube
Description : $ Sieve tubes have "P" proteins. ! In gymnosperms, sieve tubes are associated with albuminous cells.
Last Answer : $ Sieve tubes have "P" proteins. ! In gymnosperms, sieve tubes are associated with albuminous cells. A. If ... is wrong D. If both As and R are wrong.
Description : Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant. (A) Agitated vessel (B) Sieve tray column (C) Bubble cap column (D) Packed tower
Last Answer : (A) Agitated vessel
Description : The cells which are colsely associated and interacting with guard cells are (1) Transfusion tissue (2) Complementary cells (3) Subsidiary cells (4) Hypodermal cells
Last Answer : Subsidiary cells
Description : Which of the following statements is a requirement of Coast Guard Regulations (46 CFR) concerning emergency diesel generator engines? A. The fuel must have a flash point not less than 75°F. B. ... to each side of the vertical. D. The starting battery must produce 12 consecutive cranking cycles.
Last Answer : Answer: C
Description : What do sieve tube elements do? -Biology
Description : What are sieve tube elements? -Biology
Description : Trichomes function -Biology
Description : Trichomes types -Biology
Description : Name the tiny pores present on the surface of leaves in plants. (1) Pits (2) Stomata (3) Trichomes (4) Hydathodes
Last Answer : (2) Stomata Explanation: Stomata are pores in the surface of the leaf. The pore is surrounded by two guard cells. When these two guard cells take up water, they bend and open up the pore between them.
Last Answer : (2) Stomata Explanation: Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stems.
Description : Among the following characters, which one was not considered by Mendel in his experiments on pea? (a) Trichomes-Glandular or non-glandular (b) Seed-Green or yellow (c) Pod-Inflated or constricted (d) Stem-Tall or dwarf
Last Answer : a) Trichomes-Glandular or non-glandular
Description : Among the following characters, which one was not considered by Mendel in his experiments on pea ? (1) Trichomes — Glandular or non-glandular (2) Seed — Green or Yellow (3) Pod — Inflated or Constricted (4) Stem - Tall or Dwarf
Last Answer : (1) Trichomes — Glandular or non-glandular
Description : Salt secreting trichomes are found in
Last Answer : Salt secreting trichomes are found in – Artiplex
Description : Trichomes are the structures which are exclusively made up of
Last Answer : Trichomes are the structures which are exclusively made up of – Epidermis only
Last Answer : Stomata
Description : Companion cells function? -Biology
Description : Companion cells in gymnosperms? -Biology
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
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.
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.
Description : Companion cells of phloem are found in (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms
Last Answer : Angiosperms
Description : The only plant cells without nuclei among the following are : (1) Cambium cells (2) Root hairs (3) Companion cells (4) Tracheid cells
Last Answer : Cambium cells
Description : Tyloses are: (a) Lactiferous channels (b) Secretory cells (c) Sieve plates (d) Tracheal plugs plugging the lumen of vessels and tracheids
Last Answer : Ans. ((d))
Description : Which of the following plant cells will show totipotency? (a) Sieve tubes (b) Xylem vessels (c) Meristem (d) Cork cells
Last Answer : (c) Meristem
Description : Why is it that dogs and puppies are more closely associated with boys while cats and kittens are with girls?
Last Answer : Possibly. Or that people stereotype cats as being more “passive” and small. Either way it’s probably some dumb gender stereotype
Description : Which of these are most closely associated with Taoism?
Last Answer : Lao-zi and Zhuangzi
Description : Human Genome Project (HGP) is closely associated with the rapid development of a new area in biology called as
Last Answer : Human Genome Project (HGP) is closely associated with the rapid development of a new area ... B. bioinformatics C. biogeography D. bioscience