Root Hairs arise from - (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis

Root Hairs arise from - (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis
by

1 Answer

Answer :

(3) Epidermis Explanation: Root hairs are tubular-shaped tipgrowing cells that arise from epidermal cells known as trichoblasts, behind the tips of young roots. Like all tip-growing cells, root hairs grow by the addition of cell wall precursors to the tip delivered by vesicles from the endomembrane system.
by
selected

Related questions

Root Hairs arise from (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis

Description : Root Hairs arise from (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis

Last Answer : Epidermis

Adventitious roots develop from (a) Epidermis (b) Pericycle or interfascicular parenchyma (c) Cortex (d) Endodermis

Description : Adventitious roots develop from (a) Epidermis (b) Pericycle or interfascicular parenchyma (c) Cortex (d) Endodermis

Last Answer : Ans:(b)

Cortex is the region found between (a) epidermis and stele (b) pericycle and endodermis (c) endodermis and pith (d) endodermis and vascular bundle.

Description : Cortex is the region found between (a) epidermis and stele (b) pericycle and endodermis (c) endodermis and pith (d) endodermis and vascular bundle.

Last Answer : (a) epidermis and stele

Casparian strips occur in (a) epidermis (b) pericycle (c) cortex (d) endodermis.

Description : Casparian strips occur in (a) epidermis (b) pericycle (c) cortex (d) endodermis.

Last Answer : (d) endodermis.

Casparian strips occur in (1) Epidermis (2) Pericycle (3) Cortex (4) Endodermis

Description : Casparian strips occur in (1) Epidermis (2) Pericycle (3) Cortex (4) Endodermis

Last Answer : 4) Endodermis

Where do the Casparian bands occur? (a) Epidermis (b) Endodermis (c) Pericycle (d) Phloem

Description : Where do the Casparian bands occur? (a) Epidermis (b) Endodermis (c) Pericycle (d) Phloem

Last Answer : (b) Endodermis

Casparian strip occurs in a (a) endodermis (b) exodermis (c) pericycle (d) epidermis.

Description : Casparian strip occurs in a (a) endodermis (b) exodermis (c) pericycle (d) epidermis.

Last Answer : (a) endodermis

Ground tissue includes (a) all tissues external to endodermis (b) all tissues except epidermis and vascular bundles (c) epidermis and cortex (d) all tissues internal to endodermis.

Description : Ground tissue includes (a) all tissues external to endodermis (b) all tissues except epidermis and vascular bundles (c) epidermis and cortex (d) all tissues internal to endodermis.

Last Answer : b) all tissues except epidermis and vascular bundles

In the dicot root the vascular cambium originates from (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem (b) cortical region (c) parenchyma between endodermis and pericycle (d) intrafascicular and interfascicular tissue in a ring.

Description : In the dicot root the vascular cambium originates from (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem (b) cortical region (c) parenchyma between endodermis and pericycle (d) intrafascicular and interfascicular tissue in a ring.

Last Answer : (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem

Name the outer portion of a stem or root, bounded externally by the epidermis, and internally by the cells of the pericycle.

Description : Name the outer portion of a stem or root, bounded externally by the epidermis, and internally by the cells of the pericycle. 

Last Answer : ANSWER: Cortex

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

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

Interfascicular cambium develops from the cells of (a) endodermis (b) pericycle (c) medullary rays (d) xylem parenchyma.

Description : Interfascicular cambium develops from the cells of (a) endodermis (b) pericycle (c) medullary rays (d) xylem parenchyma.

Last Answer : (c) medullary rays

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

Some vascular bundles are described as open because these (a) are surrounded by pericycle but no endodermis (b) are capable of producing secondary xylem and phloem(c) possess conjunctive tissue between xylem and phloem (d) are not surrounded by pericycle.

Description : Some vascular bundles are described as open because these (a) are surrounded by pericycle but no endodermis (b) are capable of producing secondary xylem and phloem (c) possess conjunctive tissue between xylem and phloem (d) are not surrounded by pericycle.

Last Answer : (b) are capable of producing secondary xylem and phloem

Casparian strips are found in: (a) Periderm (b) Epidermis (c) Endodermis (d) Hypodermis

Description : Casparian strips are found in: (a) Periderm (b) Epidermis (c) Endodermis (d) Hypodermis

Last Answer : Ans. ((c))

The outermost layer of skin is the A. dermis B. endodermis C. epidermis D. hypodermis

Description : The outermost layer of skin is the A. dermis B. endodermis C. epidermis D. hypodermis

Last Answer : Ans: C

The outermost layer of skin is the-----? A. endodermis B. dermis C. epidermis (Answer) D. hypodermis

Description : The outermost layer of skin is the-----? A. endodermis B. dermis C. epidermis (Answer) D. hypodermis

Last Answer : C. epidermis (Answer)

Casparian strips are found in (a) epidermis (b) hypodermis (c) periderm (d) endodermis.

Description : Casparian strips are found in (a) epidermis (b) hypodermis (c) periderm (d) endodermis.

Last Answer : (d) endodermis.

The outer most layer of skin is called the: a) endodermis b) mesoderm c) epidermis d) dermis

Description : The outer most layer of skin is called the: a) endodermis b) mesoderm c) epidermis d) dermis

Last Answer : ANSWER: C -- EPIDERMIS 

For union between stock and scion in grafting which one is the first to occur? (a) Formation of callus (b) Production of plasmodesmata (c) Differentiation of new vascular tissues (d) Regeneration of cortex and epidermis

Description : For union between stock and scion in grafting which one is the first to occur? (a) Formation of callus (b) Production of plasmodesmata (c) Differentiation of new vascular tissues (d) Regeneration of cortex and epidermis

Last Answer : (a) Formation of callus

In root, the pericycle is (a) Single layered (b) Tow layered (c) Three layered (d) Absent

Description : In root, the pericycle is (a) Single layered (b) Tow layered (c) Three layered (d) Absent

Last Answer : Ans:(a)

What is the role of the endodermis in the root? -Biology

Description : What is the role of the endodermis in the root? -Biology

Last Answer : answer:

Why do roots have root hairs? -Biology

Description : Why do roots have root hairs? -Biology

Last Answer : answer:

Water will be absorbed by root hairs, then how is when the external medium? -General Knowledge

Description : Water will be absorbed by root hairs, then how is when the external medium? -General Knowledge

Last Answer : The answer is 'Hypotonic'

Water will be absorbed by root hairs, then how is when the external medium? -General Knowledge

Description : Water will be absorbed by root hairs, then how is when the external medium? -General Knowledge

Last Answer : answer:

Water will be absorbed by root hairs, then how is when the external medium? -General Knowledge

Description : Water will be absorbed by root hairs, then how is when the external medium? -General Knowledge

Last Answer : answer:

How do plants absorb water through root hairs ?

Description : How do plants absorb water through root hairs ?

Last Answer : Answer : Plants absorb water through unicellular root hairs.

Root hairs absorb water from soil due to

Description : Root hairs absorb water from soil due to

Last Answer : Root hairs absorb water from soil due to A. Osmotic pressure B. Atmospheric pressure C. Turgor pressure D. Suciton pressure

The growth of seedling plants after transplantation will not always be proper because (a) New soil may not contain the required minerals (b) During transplantation root hairs get damaged (c) Roots cannot penetrate deep into the soil (d) Of all factors stated above

Description : The growth of seedling plants after transplantation will not always be proper because (a) New soil may not contain the required minerals (b) During transplantation root hairs get damaged (c) Roots cannot penetrate deep into the soil (d) Of all factors stated above

Last Answer : Ans:(d)

Plants absorb most of the water needed by them through their (a) Embryonic zone (b) Growing point (c) Root hairs (d) Zone of elongation

Description : Plants absorb most of the water needed by them through their (a) Embryonic zone (b) Growing point (c) Root hairs (d) Zone of elongation

Last Answer : Ans:(c)

In plants water is absorbed by the root hairs by a process called: (1) Transpiration (2) Respiration (3) Perspiration (4) Osmosis

Description : In plants water is absorbed by the root hairs by a process called: (1) Transpiration (2) Respiration (3) Perspiration (4) Osmosis

Last Answer : (4) Osmosis Explanation: Plants absorb water from their root hairs on the root via osmosis. It is then transported to other parts of the plant. (through the network of xylem vessels) through a combination of capillary action and "transiprational pull".

Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Description : Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Last Answer : (2) Capillary pressure Explanation: In plants, the transpiration stream is the uninterrupted stream of water, and other, which is taken up by the roots and, via the xylem vessels, ... the difference in water potential between the soil and the substomatal cavity caused by transpiration.

Water will be absorbed by root hairs, then how is when the external medium?

Description : Water will be absorbed by root hairs, then how is when the external medium?

Last Answer : Hypotonic

Root hairs develop from the region of : (1) Elongation (2) root cap (3) Meristematic activity (4) Maturation

Description : Root hairs develop from the region of : (1) Elongation (2) root cap (3) Meristematic activity (4) Maturation

Last Answer : (4) Maturation

The only plant cells without nuclei among the following are : (1) Cambium cells (2) Root hairs (3) Companion cells (4) Tracheid cells

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

In plants water is absorbed by the root hairs by a process called: (1) Transpiration (2) Respiration (3) Perspiration (4) Osmosis

Description : In plants water is absorbed by the root hairs by a process called: (1) Transpiration (2) Respiration (3) Perspiration (4) Osmosis

Last Answer : Osmosis

Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Description : Water from soil enters into the root hairs owing to : (1) Atmospheric pressure (2) Capillary pressure (3) Root pressure (4) Osmotic pressure

Last Answer : Capillary pressure

The girth of the stem or root increases due to ___ (a) Apical meristem (b) Cambium (c) Intercalary meristem (d) Epidermis

Description : The girth of the stem or root increases due to ___ (a) Apical meristem (b) Cambium (c) Intercalary meristem (d) Epidermis

Last Answer : (b) Cambium

$ Tap root arises from the radicle of seed. ! Radical leaves arise from the reduced stem.

Description : $ Tap root arises from the radicle of seed. ! Radical leaves arise from the reduced stem.

Last Answer : $ Tap root arises from the radicle of seed. ! Radical leaves arise from the reduced stem. A. If both As ... R is wrong D. If both As and R are wrong.

$ Tap root system is that which arises from the radicle of seed. ! Adventitious roots can also arise from the radicle.

Description : $ Tap root system is that which arises from the radicle of seed. ! Adventitious roots can also arise from the radicle.

Last Answer : $ Tap root system is that which arises from the radicle of seed. ! Adventitious roots can also arise from ... is wrong D. If both As and R are wrong.

Root suckers are a) Insects that suck nutrients from the roots of plants b) Shoots that arise from roots to form new plant c)New plant parts that arise from the branches of fruit trees d) Roots of neighboring plants that share water with the another plant

Description : Root suckers are a) Insects that suck nutrients from the roots of plants b) Shoots that arise from roots to form new plant c)New plant parts that arise from the branches of fruit trees d) Roots of neighboring plants that share water with the another plant

Last Answer : b) Shoots that arise from roots to form new plant

Cortex of root function -Biology

Description : Cortex of root function -Biology

Last Answer : answer:

Pith and cortex do not differentiate in (a) monocot stem (b) dicot stem (c) monocot root (d) dicot root

Description : Pith and cortex do not differentiate in (a) monocot stem (b) dicot stem (c) monocot root (d) dicot root

Last Answer : (a) monocot stem

All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia (a) can induce root nodules on many plant species (b) can fix nitrogen in the free-living state (c) cannot fix specialized vesicles in which the nitrogenase is protected from oxygen by a chemical barrier involving triterpene hopanoids (d) like Rhizobium, it usually infects its host plant through root hair deformation and stimulates cell proliferation in the host’s cortex

Description : All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia (a) can induce root nodules on many plant species (b) can fix ... its host plant through root hair deformation and stimulates cell proliferation in the host's cortex

Last Answer : (b) can fix nitrogen in the free-living state

Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has the capacity to produce lateral roots.

Description : Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has the capacity to produce lateral roots.

Last Answer : Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has ... D. If both assertion and reason are false.

Read the following four statements (A – D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth. (C) Stamens in flowers of Gloriosa and Petunia are polyandrous.(D) Symbiotic nitrogen fixers occur in free-living state also in soil.

Description : Read the following four statements (A - D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium ... Petunia are polyandrous. (D) Symbiotic nitrogen fixers occur in free-living state also in soil.

Last Answer : (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.

Pericycle of roots produces (a) mechanical support (b) lateral roots (c) vascular bundles (d) adventitious buds.

Description : Pericycle of roots produces (a) mechanical support (b) lateral roots (c) vascular bundles (d) adventitious buds.

Last Answer : b) lateral roots

Cork cambium and vascular cambium are (a) parts of secondary xylem and phloem (b) parts of pericycle (c) lateral meristem (d) apical meristem.

Description : Cork cambium and vascular cambium are (a) parts of secondary xylem and phloem (b) parts of pericycle (c) lateral meristem (d) apical meristem.

Last Answer : (c) lateral meristem

Cork cambium and vascular cambium are (a) parts of secondary xylem and phloem (b) parts of pericycle (c) lateral meristem (d) apical meristem.

Description : Cork cambium and vascular cambium are (a) parts of secondary xylem and phloem (b) parts of pericycle (c) lateral meristem (d) apical meristem.

Last Answer : c) lateral meristem

Which type of cell would probably be most appropriate to study chloroplasts (A) Conducting cell (B) Photosynthetic cell (C) Pericycle cell (D) All options are correct

Description : Which type of cell would probably be most appropriate to study chloroplasts (A) Conducting cell (B) Photosynthetic cell (C) Pericycle cell (D) All options are correct

Last Answer : Photosynthetic cell bcz chloroplast involved in synthesis of ATP by traping light