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

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

Answer :

Cambium cells
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Related questions

What is the shape of the tracheid cells ?

Description : What is the shape of the tracheid cells ?

Last Answer : The cells of the tracheid are elongated , with pointed and pointed ends.

What do tracheid cells look like ?

Description : What do tracheid cells look like ?

Last Answer : Tracheid cells are long. The ends are narrow and pointed.

The only living tissue in plant xylem is (1) Trachea (2) Xylem fibre (3) Xylem parenchyma (4) Tracheid

Description : The only living tissue in plant xylem is (1) Trachea (2) Xylem fibre (3) Xylem parenchyma (4) Tracheid

Last Answer : (3) Xylem parenchyma Explanation: Xylem parenchyma is the only living component found in xylem tissue. They are living cells associated with the xylem that are found in between the vessels ... is a complex permanent tissue specialized for the conduction of water and mineral substances in plants.

The only living tissue in plant xylem is (1) Trachea (2) Xylem fibre (3) Xylem parenchyma (4) Tracheid

Description : The only living tissue in plant xylem is (1) Trachea (2) Xylem fibre (3) Xylem parenchyma (4) Tracheid

Last Answer : Xylem parenchyma

A major characteristic of monocot root is the presence of (a) vasculature without cambium (b) cambium sandwiched between phloem and xylem along the radius (c) open vascular bundles (d) scattered vascular bundles

Description : A major characteristic of monocot root is the presence of (a) vasculature without cambium (b) cambium sandwiched between phloem and xylem along the radius (c) open vascular bundles (d) scattered vascular bundles

Last Answer : (a) vasculature without cambium

What does the cell wall of a tracheid look like ?

Description : What does the cell wall of a tracheid look like ?

Last Answer : The cell wall of the trachea is hard, firm , lignin - containing.

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)

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 : (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 ... the addition of cell wall precursors to the tip delivered by vesicles from the endomembrane system.

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

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

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

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

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

In plants, the external group of tissues, from the cambium outward, of a woody stem or root is known as what?

Description : In plants, the external group of tissues, from the cambium outward, of a woody stem or root is known as what? 

Last Answer : ANSWER: BARK

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 cells without nuclei are present in

Description : The cells without nuclei are present in

Last Answer : The cells without nuclei are present in A. Vascular cambium B. Root hair C. Comkpanion cell D. Members of seive tube

Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat, glands, hairs on skin and diphyoclonts (2) Presence of mammary glands, sweat glands and diaphragm (3) Presence of mammary' glands, sweat glands, and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Description : Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat, glands, hairs on skin and diphyoclonts (2) Presence of mammary glands, sweat ... glands, sweat glands, and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Last Answer : (3) Presence of mammary' glands, sweat glands, and diaphragm Explanation: Ayes are also worm blooded and their heart is four-chambered. Crocodiles (Reptilia) also have fourchambered heart.

Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat glands, hairs on skin and diphyodonts (2) Presence of mammary glands, sweat glands and diaphragm (3) Presence of mammary glands, sweat glands and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Description : Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat glands, hairs on skin and diphyodonts (2) Presence of mammary glands, sweat ... glands, sweat glands and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Last Answer :  Presence of mammary glands, sweat glands and diaphragm

Inter fascicular cambium develops from the cells -Biology

Description : Inter fascicular cambium develops from the cells -Biology

Last Answer : answer:

Inter-fascicular cambium is formed from the cells of

Description : Inter-fascicular cambium is formed from the cells of

Last Answer : Inter-fascicular cambium is formed from the cells of A. Cortex B. Pith C. Pericycle D. Medullary rays

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.

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

In Dracaena, the cambium arises from the cells of

Description : In Dracaena, the cambium arises from the cells of

Last Answer : In Dracaena, the cambium arises from the cells of - parenchyma outside the outermost vascular bundles

Companion cells function? -Biology

Description : Companion cells function? -Biology

Last Answer : answer:

Companion cells in gymnosperms? -Biology

Description : Companion cells in gymnosperms? -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

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.

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.

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.

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

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.

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.

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

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

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.

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.