Description : Tracheids differ from other tracheary elements in (a) having Casparian strips (b) being imperforate (c) lacking nucleus (d) being lignified
Last Answer : (b) being imperforate
Description : The xylem and phloem elements in the plant are surrounded by a layer of living cells called (a) Casparian strips (b) Pericycle (c) Stele(d) Endodermis
Last Answer : (b) Pericycle
Description : The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of (a) weak gravitational pull (b) transpiration pull (c) lignified thick walls (d) cohesion and adhesion
Last Answer : (d) cohesion and adhesion.
Description : What are casparian strips? -Biology
Last Answer : answer:
Description : Casparian strips functions -Biology
Description : Casparian strips are present in? -Biology
Description : Of what fatty substance are casparian strips composed? -Biology
Description : Casparian strips are found in: (a) Periderm (b) Epidermis (c) Endodermis (d) Hypodermis
Last Answer : Ans. ((c))
Description : Casparian strips are found in (a) epidermis (b) hypodermis (c) periderm (d) endodermis.
Last Answer : (d) endodermis.
Description : Casparian strips occur in (a) epidermis (b) pericycle (c) cortex (d) endodermis.
Description : Casparian strips occur in (1) Epidermis (2) Pericycle (3) Cortex (4) Endodermis
Last Answer : 4) Endodermis
Description : An organised and differentiated cellular structure having cytoplasm but no nucleus is (a) vessels (b) xylem parenchyma (c) sieve tubes (d) tracheids.
Last Answer : (c) sieve tubes
Description : Plasmodesmata are (a) locomotory structures (b) membranes connecting the nucleus with plasmalemma (c) connections between adjacent cells (d) lignified cemented layers between cells.
Last Answer : (c) connections between adjacent cells
Description : Conifers differ from grasses in the (a) formation of endosperm before fertilization (b) production of seeds from ovules (c) lack of xylem tracheids (d) absence of pollen tubes.
Last Answer : (a) formation of endosperm before fertilization
Description : Identify the wrong statement in context of heartwood. (a) It is highly durable. (b) It conducts water and minerals efficiently. (c) It comprises dead elements with highly lignified walls. (d) Organic compounds are deposited in it.
Last Answer : (b) It conducts water and minerals efficiently
Description : Identify the wrong statement in context of heartwood: (1) It is highly durable (2) It conducts water and minerals efficiently (3) It comprises dead elements with highly lignified walls (4) Organic compounds are deposited in it
Last Answer : 2) It conducts water and minerals efficiently
Description : 2. Perisperm and endosperm differ in a. Being a diploid tissue b. Being a haploid tissue c. Having no reserve food d. Formation of perisperm by fusion of the secondary nucleus with many sperms
Last Answer : d. Formation of perisperm by fusion of the secondary nucleus with many sperms
Description : Why are vessel elements better than tracheids? -Biology
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 : The chief water conducting elements of xylem in gymnosperms are (a) vessels (b) fibres (c) transfusion tissue (d) tracheids.
Last Answer : (d) tracheids.
Last Answer : d) sieve elements.
Description : The chief water conducting elements of xylem in gymnosperms are (a) vessels (b) fibres (c) transfusion tissue (d) tracheids
Last Answer : d) tracheids.
Description : Imperforate anus repair?
Last Answer : DefinitionImperforate anus repair is surgery to correct a birth defect involving the rectum and anus.An imperforate anus defect prevents most or all stool from passing out of the rectum.See also: ... fistulas), creating an anal opening, and putting the rectal pouch into the anal opening. This
Description : Imperforate anus?
Last Answer : DefinitionImperforate anus is congenital (present from birth) defect in which the opening to the anus is missing or blocked. The anus is the opening to the rectum through which stools leave the body. ... other birth defects. It is a relatively common condition that occurs in about 1 out of 5,
Description : Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids
Last Answer : Ans. ((a))
Description : Which type of tissue has lignified cell walls? (a) Parenchyma (b) Collenchyma (c) Sclerenchyma (d) cambium
Last Answer : (c) Sclerenchyma
Description : A plant having seeds but lacking flowers and fruits belongs to (a) pteridophytes (b) mosses (c) ferns (d) gymnosperms.
Last Answer : (d) gymnosperms.
Description : In which of the following would you place the plants having vascular tissue lacking seeds? (a) Pteridophytes (b) Gymnosperms (c) Algae (d) Bryophytes
Last Answer : (a) Pteridophytes
Description : The Casparian strip is present in
Last Answer : Ans. Endosmosis
Description : Where do the Casparian bands occur? (a) Epidermis (b) Endodermis (c) Pericycle (d) Phloem
Last Answer : (b) Endodermis
Description : Casparian strip occurs in a (a) endodermis (b) exodermis (c) pericycle (d) epidermis.
Last Answer : (a) endodermis
Description : What is being modeled at slits a and b as you pull the strips down through the base seafloor spreading?
Last Answer : What is the answer ?
Description : Function of tracheids -Biology
Description : Why are tracheids not efficient in transporting water up the plant? -Biology
Description : What are tracheids?
Last Answer : Need answer
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 : What are xylem vessels and tracheids?
Last Answer : Xylem vessels consist of series of elongated dead cells joined together forming end to end tube like structure for conduction of water and salts
Description : Which of the following statements is true? (a) Vessels are multicellular with wide lumen. (b) Tracheids are multicellular with narrow lumen. (c) Vessels are unicellular with narrow lumen. (d) Tracheids are unicellular with wide lumen.
Last Answer : (a) Vessels are multicellular with wide lumen
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.
Last Answer : (a) Vessels are multicellular with wide lumen.
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
Description : Why tracheids are less efficient than vessels in conduction
Last Answer : Ans: Tracheids do not have uniform diameter, overlapped on each other at the ends and have solid cross walls. Vessels have uniform diameter, perforated cross walls and their elements are not overlapped but arranged one above the other.
Description : Do you find that people who tend to boast about their accomplishments and continually say how wonderful they are, are overcompensating? That they're lacking in some other area?
Last Answer : answer:Usually, but not necessarily the rule. Depends on how the boasting is being applied. And usually it is an insecurity of some sort.
Description : In performing an audit, Jackson, CPA, discovers that the professional competence necessary for the engagement is lacking. Jackson informs management of the situation and recommends another local firm ... of competence should be construed to be a violation of generally accepted auditing standards.
Last Answer : Jackson may request compensation from the other firm for any professional services rendered to it in connection with the engagement.
Description : In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called? (1) shelter belts (2) agroforests (3) wind breaks (4) social forests
Last Answer : (3) wind breaks Explanation: A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the ... benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
Description : A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised (A) Steel experiences tensile force (B) Brass experiences compressive force (C) Composite beam gets subjected to a couple (D) All the above
Last Answer : (D) All the above
Description : 102.Perisperm differs from endosperm in (a) being a diploid tissue (b) its formation by fusion of secondary nucleus with several sperms (c) being a haploid tissue (d) having no reserve food.
Last Answer : (a) being a diploid tissue