Which Is A Reason Cells Divide Apex . Cell divisions are very few in the quiescent centre as there is very little synthesis of new proteins, rnas and dna. The tunica shows only anticlinical divisions and thus it is responsible for surface growth.
Reasons For Cell Division from studylib.net
To have a smaller surface area d. The cells of this region divide first horizontally.
Reasons For Cell Division
Apical is a description of growth occurring at the tips. The megaspore mother cells divide by meiotic division to produce four spores. The apical part of many plants is formed by primary development.
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(a) both assertion and reason are true and reason is the correct explanation of assertion. The lower daughter cell then divides longitudinally, i.e. The zone where these cells exist is known as meristem.
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The root apical meristem is protected as it passes through the soil by an outer region of living parenchyma cells called the root cap. Quiescent centre is found in the centre of the root apex. They help in the growth of the root system as well as the shoot system.
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The cells of root cap secret mucilage which lubricates the passage of the root through soil. The greater the demand for dna and it makes it harder to get in and out of the cell Apical meristem is one of three types of meristem, or tissue which can differentiate into different cell types.
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During the growth of an organism, new cells are produced by mitosis. Quiescent centre consists of actively dividing cells. The cells have no intercellular space.
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At right angles to the plane of It consists of actively dividing cells. The cells of this region divide first horizontally.
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Quiescent centre is found in the centre of the root apex. To prevent tumor formation c. The apical part of many plants is formed by primary development.
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According to this concept there are two portions in shoot apex tunica and corpus. During the growth of an organism, new cells are produced by mitosis. Apical meristem is one of three types of meristem, or tissue which can differentiate into different cell types.
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This act leading to maturation is termed as differentiation. During differentiation, cells undergo few to major structural changes both in. It is produced by a meristematic zone.
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Neurons can be several feet long. Quiescent centre consists of actively dividing cells. This act leading to maturation is termed as differentiation.
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The root apical meristem, or root apex, is a small region at the tip of a root in which all cells are capable of repeated division and from which all primary root tissues are derived. The lower daughter cell then divides longitudinally, i.e. It consists of actively dividing cells.
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Which is a reason cells divide? The cells of root cap secret mucilage which lubricates the passage of the root through soil. According to this concept there are two portions in shoot apex tunica and corpus.
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The tunica corpus concept was given by schmidt (1924) which was based on plane of divisions of cells. Which is a reason cells divide? To have a smaller surface area d.
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The cells have no intercellular space. There are numerous reasons why cells divide. There is a de fi nite scienti fi c and mathematical reason why cells are the size they are and why.
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The root apical meristem is protected as it passes through the soil by an outer region of living parenchyma cells called the root cap. (c) quiescent centre is found in the centre of the root apex. The two types of mechanisms of cell division are mitosis and meiosis.
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The lower daughter cell then divides longitudinally, i.e. It is based on differences in the planes of cell division. Meristem is the tissue in which growth occurs in plants.
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(a) em images of cells expressing apex targeted to the mitochondrial matrix (top) and intermembrane space (bottom). The apical meristem is the growth region in plants found within the root tips and the tips of the new shoots and leaves. Dark regions indicate the presence of.
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Dark regions indicate the presence of. The root apical meristem is protected as it passes through the soil by an outer region of living parenchyma cells called the root cap. Cell divisions are very few in the quiescent centre as there is very little synthesis of new proteins, rnas and dna.
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The two reasons why cell divides are: The apical part of many plants is formed by primary development. The lower daughter cell then divides longitudinally, i.e.
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The outer region of the root apex is the kappe. It is produced by a meristematic zone. A male or female reproductive cell that contains half the genetic information for an organism.
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During differentiation, cells undergo few to major structural changes both in. Neurons can be several feet long. What best describes a gamete?
