Plant Structure and Function
... Three Types of Plant Tissues • Vascular Tissue – Transport – Support ...
... Three Types of Plant Tissues • Vascular Tissue – Transport – Support ...
Unit 13 Plants (Teacher) PPT
... Companion Cell =parenchyma cell that provides physiological support to sieve-tube member ...
... Companion Cell =parenchyma cell that provides physiological support to sieve-tube member ...
Plant form and function, Powerpoint for March 27.
... • Usually the meristematic activity causing the elongation of the internodes is most intense at the base of the developing internodes - if elongation of the internodes occurs over a long period, the meristematic base of the internode may be called an intercalary meristem (a meristematic region betwe ...
... • Usually the meristematic activity causing the elongation of the internodes is most intense at the base of the developing internodes - if elongation of the internodes occurs over a long period, the meristematic base of the internode may be called an intercalary meristem (a meristematic region betwe ...
Lecture - Chapter 42 - Stems, Roots, and Leaves
... • On a piece of paper, list plant leaves or products of plant leaves that you have used in the past few days. • What qualities of the leaves made them useful? ...
... • On a piece of paper, list plant leaves or products of plant leaves that you have used in the past few days. • What qualities of the leaves made them useful? ...
Plant Growth
... Whether they are involved in primary or secondary growth, all plant cells and tissues arise from three primary meristems*: ...
... Whether they are involved in primary or secondary growth, all plant cells and tissues arise from three primary meristems*: ...
Plant Structure Questions Answers
... 20. Explain how the casparian strip in the endodermis affects movement of water into the roots vascular system. Water and its dissolved nutrients are absorbed into the roots by both traveling through the cells cytoplasm and by just moving along the extracellular space. However, water reaches the end ...
... 20. Explain how the casparian strip in the endodermis affects movement of water into the roots vascular system. Water and its dissolved nutrients are absorbed into the roots by both traveling through the cells cytoplasm and by just moving along the extracellular space. However, water reaches the end ...
Plant structure & growth
... Sensitive to touch, so faster growth on the opposite side occurs. Eg. vine, ivy ...
... Sensitive to touch, so faster growth on the opposite side occurs. Eg. vine, ivy ...
here
... Tendrils are modified leaves that are very thin and they extend out and wrap around a solid structure allowing the plants to grow upwards. Grape vines, peas and my favorite flower the sweet pea all have tendrils ...
... Tendrils are modified leaves that are very thin and they extend out and wrap around a solid structure allowing the plants to grow upwards. Grape vines, peas and my favorite flower the sweet pea all have tendrils ...
Chapter 42a
... • The cell is the basic unit of all living things. Tissues are made up of one or more types of cells, organs are made up of tissues, and systems are made up of organs. Most groups of multicellular organisms, including plants, are made up of multiple organ systems. • The organs and organ systems of a ...
... • The cell is the basic unit of all living things. Tissues are made up of one or more types of cells, organs are made up of tissues, and systems are made up of organs. Most groups of multicellular organisms, including plants, are made up of multiple organ systems. • The organs and organ systems of a ...
Week 1 Topic: Plant anatomy Reading: Chapter 24, sections 1
... • The cell is the basic unit of all living things. Tissues are made up of one or more types of cells, organs are made up of tissues, and systems are made up of organs. Most groups of multicellular organisms, including plants, are made up of multiple organ systems. • The organs and organ systems of a ...
... • The cell is the basic unit of all living things. Tissues are made up of one or more types of cells, organs are made up of tissues, and systems are made up of organs. Most groups of multicellular organisms, including plants, are made up of multiple organ systems. • The organs and organ systems of a ...
Plant Organs
... occurs in here) It is composed of parenchyma and other tissues: Palisade Cells are columnar cells, they are tightly packed. Spongy Cells have an irregular shape; they are not very tightly packed. Vascular Boundless are composed of xylem and phloem. ...
... occurs in here) It is composed of parenchyma and other tissues: Palisade Cells are columnar cells, they are tightly packed. Spongy Cells have an irregular shape; they are not very tightly packed. Vascular Boundless are composed of xylem and phloem. ...
Chapter 35: Plant Structure, Growth, and Development
... Dicots – taproot system c. Root hairs – increase surface area for water absorption ...
... Dicots – taproot system c. Root hairs – increase surface area for water absorption ...
Chapter 35 notes
... – Spines: sharp, pointy ends, used to protect themselves from herbivores; cactus – Storage leaves: serve as food storage organs; aloe – Bracts: associated with a reproductive structure such as a flower, poinsettia – Reproductive leaves: contain new plants at tips; walking fern The Three Tissue Syste ...
... – Spines: sharp, pointy ends, used to protect themselves from herbivores; cactus – Storage leaves: serve as food storage organs; aloe – Bracts: associated with a reproductive structure such as a flower, poinsettia – Reproductive leaves: contain new plants at tips; walking fern The Three Tissue Syste ...
Organization of Flowering Plants
... primary growth. Terminal bud scales: is located at the tip of the twig, this is where new primary growth ...
... primary growth. Terminal bud scales: is located at the tip of the twig, this is where new primary growth ...
Chapter 35
... - early in secondary growth the epidermis falls off and CC makes new tissue - produces cork to the outside for protection and cork and CC are called the periderm - Bark is the periderm plus primary and secondary phloem - old phloem and cork are sloughed off ...
... - early in secondary growth the epidermis falls off and CC makes new tissue - produces cork to the outside for protection and cork and CC are called the periderm - Bark is the periderm plus primary and secondary phloem - old phloem and cork are sloughed off ...
Previous Questions - 2002
... Grass stem elongates after initial growth due to : (1) Lateral meristem (2) Secondary meristem (3) Intercalary meristem (4) Apical meristem A simple tissue with mechanical and physiological functions in a young dicotyledonous plant is (1) Parenchyma (2) Collenchyma (3) Sclerenchyma (4) Meristematic ...
... Grass stem elongates after initial growth due to : (1) Lateral meristem (2) Secondary meristem (3) Intercalary meristem (4) Apical meristem A simple tissue with mechanical and physiological functions in a young dicotyledonous plant is (1) Parenchyma (2) Collenchyma (3) Sclerenchyma (4) Meristematic ...
from vascular tissue Secondary growth
... To observe the process of mitosis in plant roots, a student should examine the root’s a. root cap. b. zone of maturation. c. meristem tissue. d. pericycle. e. endodermis. ...
... To observe the process of mitosis in plant roots, a student should examine the root’s a. root cap. b. zone of maturation. c. meristem tissue. d. pericycle. e. endodermis. ...
Plant Hormones (Chapter 39)
... Leaf growth Stimulate flowering and development of fruit Affect root growth/differentiation Affect root growth/differentiation Stem elongation Leaf growth Stimulates cell division/growth Stimulate germination Delay senescence (cell death) Inhibits growth Closes stomata during wat ...
... Leaf growth Stimulate flowering and development of fruit Affect root growth/differentiation Affect root growth/differentiation Stem elongation Leaf growth Stimulates cell division/growth Stimulate germination Delay senescence (cell death) Inhibits growth Closes stomata during wat ...
Taxonomy and Systematics: Seeking Order Amidst Diversity
... Protoderm cells develop into epidermis Some epidermal cells are guard cells surrounding stomata Ground meristem cells develop into ground tissues In dicot stems these are the pith and cortex Secondary growth in stems [See Fig. 35.18] a.k.a “Girth growth” Primary growth at a branch tip lays down apic ...
... Protoderm cells develop into epidermis Some epidermal cells are guard cells surrounding stomata Ground meristem cells develop into ground tissues In dicot stems these are the pith and cortex Secondary growth in stems [See Fig. 35.18] a.k.a “Girth growth” Primary growth at a branch tip lays down apic ...
Slide 1
... Stems are alternating systems of nodes, the points at which leaves are attached, and internodes, the stem segment between nodes The angle formed by each leaf and the stem is an axillary bud that has the potential to form a vegetative branch ◦ Most young plants’ are dormant and growth is usually conc ...
... Stems are alternating systems of nodes, the points at which leaves are attached, and internodes, the stem segment between nodes The angle formed by each leaf and the stem is an axillary bud that has the potential to form a vegetative branch ◦ Most young plants’ are dormant and growth is usually conc ...
embryo - FBS-WP
... the iterative activity of meristems • Meristems are complex with 50 to 100 initials. (Ferns have one initial cell) • Meristem activity can be – determinate: limited development to give rise to a specific structure e.g. flower - has an endpoint – indeterminate: continuous production of organs e.g. le ...
... the iterative activity of meristems • Meristems are complex with 50 to 100 initials. (Ferns have one initial cell) • Meristem activity can be – determinate: limited development to give rise to a specific structure e.g. flower - has an endpoint – indeterminate: continuous production of organs e.g. le ...
Stems - USD 281
... Each leaf is attached to the stem at a node. The spaces between nodes are internodes. Bud – apical meristem capable of developing into a new shoot system, enclosed by specialized leaves (bud scales) - lateral – located at nodes - terminal – located at tips of stems ...
... Each leaf is attached to the stem at a node. The spaces between nodes are internodes. Bud – apical meristem capable of developing into a new shoot system, enclosed by specialized leaves (bud scales) - lateral – located at nodes - terminal – located at tips of stems ...
You Light Up My Life
... • Root cap covers tip • Apical meristem produces the cap • Cell divisions at the apical meristem cause the root to lengthen ...
... • Root cap covers tip • Apical meristem produces the cap • Cell divisions at the apical meristem cause the root to lengthen ...
powerpoint
... VASCULAR, GROUND TISSUES OF THE PRIMARY PLANT BODY. IN ROOTS, THE APICAL IS LOCATED NEAR THE TIP, WHERE IT REGENERATES THE ROOT CAP AS PRODUCING THE PRIMARY MERISTEMS. THE APICAL MERISTEM OF SHOOT IS LOCATED IN THE TERMINAL BUD, WHERE IT GIVES RISE, MODULE BY MODULE, TO A REPETITION OF INTERNODES AN ...
... VASCULAR, GROUND TISSUES OF THE PRIMARY PLANT BODY. IN ROOTS, THE APICAL IS LOCATED NEAR THE TIP, WHERE IT REGENERATES THE ROOT CAP AS PRODUCING THE PRIMARY MERISTEMS. THE APICAL MERISTEM OF SHOOT IS LOCATED IN THE TERMINAL BUD, WHERE IT GIVES RISE, MODULE BY MODULE, TO A REPETITION OF INTERNODES AN ...
Meristem
A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place.Meristematic cells give rise to various organs of the plant and keep the plant growing. The shoot apical meristem (SAM) gives rise to organs like the leaves and flowers, while the root apical meristem (RAM) provides the meristematic cells for the future root growth. SAM and RAM cells divide rapidly and are considered indeterminate, in that they do not possess any defined end status. In that sense, the meristematic cells are frequently compared to the stem cells in animals, which have an analogous behavior and function.The term meristem was first used in 1858 by Karl Wilhelm von Nägeli (1817–1891) in his book Beiträge zur Wissenschaftlichen Botanik. It is derived from the Greek word merizein (μερίζειν), meaning to divide, in recognition of its inherent function.In general, differentiated plant cells cannot divide or produce cells of a different type. Therefore, cell division in the meristem is required to provide new cells for expansion and differentiation of tissues and initiation of new organs, providing the basic structure of the plant body.Meristematic cells are incompletely or not at all differentiated, and are capable of continued cellular division (youthful). Furthermore, the cells are small and protoplasm fills the cell completely. The vacuoles are extremely small. The cytoplasm does not contain differentiated plastids (chloroplasts or chromoplasts), although they are present in rudimentary form (proplastids). Meristematic cells are packed closely together without intercellular cavities. The cell wall is a very thin primary cell wall.Maintenance of the cells requires a balance between two antagonistic processes: organ initiation and stem cell population renewal.Apical meristems are the completely undifferentiated (indeterminate) meristems in a plant. These differentiate into three kinds of primary meristems. The primary meristems in turn produce the two secondary meristem types. These secondary meristems are also known as lateral meristems because they are involved in lateral growth.At the meristem summit, there is a small group of slowly dividing cells, which is commonly called the central zone. Cells of this zone have a stem cell function and are essential for meristem maintenance. The proliferation and growth rates at the meristem summit usually differ considerably from those at the periphery.Meristems also are induced in the roots of legumes such as soybean, Lotus japonicus, pea, and Medicago truncatula after infection with soil bacteria commonly called Rhizobium. Cells of the inner or outer cortex in the so-called ""window of nodulation"" just behind the developing root tip are induced to divide. The critical signal substance is the lipo-oligosaccharide Nod-factor, decorated with side groups to allow specificity of interaction. The Nod factor receptor proteins NFR1 and NFR5 were cloned from several legumes including Lotus japonicus, Medicago truncatula and soybean (Glycine max). Regulation of nodule meristems utilizes long distance regulation commonly called ""Autoregulation of Nodulation"" (AON). This process involves a leaf-vascular tissue located LRR receptor kinases (LjHAR1, GmNARK and MtSUNN), CLE peptide signalling, and KAPP interaction, similar to that seen in the CLV1,2,3 system. LjKLAVIER also exhibits a nodule regulation phenotype though it is not yet known how this relates to the other AON receptor kinases.