Angiosperm_Reproduction - REMC 8 / Kent ISD Moodle VLE
... When you think of a plant, you are visualizing an adult sporophyte. ► An oak tree, a mulberry bush, a blade of grass, and a thistle are all ...
... When you think of a plant, you are visualizing an adult sporophyte. ► An oak tree, a mulberry bush, a blade of grass, and a thistle are all ...
File
... Primary roots grow down from the stem with some secondary roots forming Image found at: http://www.arboretum.fullerton.edu ...
... Primary roots grow down from the stem with some secondary roots forming Image found at: http://www.arboretum.fullerton.edu ...
Sporophyte Stage - St. Ambrose School
... The stamen is the male reproductive organ of flowers • Produces pollen The pistil is the female reproductive organ • The ovary is the base of the pistil • Ovules are formed in the ...
... The stamen is the male reproductive organ of flowers • Produces pollen The pistil is the female reproductive organ • The ovary is the base of the pistil • Ovules are formed in the ...
Pollination enables Gametes to Come Together Within
... • Has evolved in plants such as dandelions • Uses seed dispersal - A diploid cell in the plant ovule gives rise to an embryo - The ovules mature into seeds - In dandelions, the ovules are dispersed by windblown fruits. ...
... • Has evolved in plants such as dandelions • Uses seed dispersal - A diploid cell in the plant ovule gives rise to an embryo - The ovules mature into seeds - In dandelions, the ovules are dispersed by windblown fruits. ...
New Microsoft PowerPoint Presentation
... Cilimbers:- contrary to the twiners that twin on the support by their own growth movement, the climber require the help of certain clasping of clinging structure(eg., Tendrils, Spines, Thorns, ...
... Cilimbers:- contrary to the twiners that twin on the support by their own growth movement, the climber require the help of certain clasping of clinging structure(eg., Tendrils, Spines, Thorns, ...
The beneficial attribute and Seed histology of recalcitrant (Eurycoma
... present (Figures 1b, c and d). By the fourth week, well defined regions of the cotyledon tissue were observed (Figure 1 d). The embryo of E. longifolia is heart shaped as shown in Figures 2a, b and c. As the germination proceeds, the embryo increased in size. Towards the end of the germination proce ...
... present (Figures 1b, c and d). By the fourth week, well defined regions of the cotyledon tissue were observed (Figure 1 d). The embryo of E. longifolia is heart shaped as shown in Figures 2a, b and c. As the germination proceeds, the embryo increased in size. Towards the end of the germination proce ...
Graminoid families - Alaska Geobotany Center
... Growth forms: have a superficial resemblance to grasses, however, they are not closely related and differ in many characteristics, particularly in the structure of the inflorescence. Leaves: veins parallel, spirally arranged in three ranks (grasses have alternate leaves forming two ranks). Stems: Un ...
... Growth forms: have a superficial resemblance to grasses, however, they are not closely related and differ in many characteristics, particularly in the structure of the inflorescence. Leaves: veins parallel, spirally arranged in three ranks (grasses have alternate leaves forming two ranks). Stems: Un ...
Plant Structure and Function Notes
... Fibrous Roots: have many small branching roots from a central point example: grass ...
... Fibrous Roots: have many small branching roots from a central point example: grass ...
Plants Review
... be able to compare structures / functions to algae / mosses (eg water requirements, roots / rhizoids / holdfast) Gymnosperms: characteristics (seeds, cones, needles, etc) almost complete dominance of sporophyte generation (except in cone) value, uses of gymnosperms p266 ...
... be able to compare structures / functions to algae / mosses (eg water requirements, roots / rhizoids / holdfast) Gymnosperms: characteristics (seeds, cones, needles, etc) almost complete dominance of sporophyte generation (except in cone) value, uses of gymnosperms p266 ...
Genetics
... between two nerve cells is called a “synapse.” The nerve impulse stimulating chemicals are called “neurotransmitters.” The packets are “synaptic vesicles.” K is for Kinetics: Kinetic means movement. One of the major sources of movement in single cells are whip like structures called “flagella.” If ...
... between two nerve cells is called a “synapse.” The nerve impulse stimulating chemicals are called “neurotransmitters.” The packets are “synaptic vesicles.” K is for Kinetics: Kinetic means movement. One of the major sources of movement in single cells are whip like structures called “flagella.” If ...
July/August 2013 - Florida Council of Bromeliad Societies
... Florida’s wildlife in an intimate way, something that modern parks cannot provide. On April 21st 2013, the animal park was closed due to the health issues of David Piper, Lester Piper’s grandson. Internationally recognized local photographer John Brady and family will take over the operation of the ...
... Florida’s wildlife in an intimate way, something that modern parks cannot provide. On April 21st 2013, the animal park was closed due to the health issues of David Piper, Lester Piper’s grandson. Internationally recognized local photographer John Brady and family will take over the operation of the ...
Botany Presentation - St. Lucie County Extension Office
... use of specialized term to describe the leaf tip, base, margin, shape, and surface. ...
... use of specialized term to describe the leaf tip, base, margin, shape, and surface. ...
Vascular Plants - HONORS BIOLOGY
... pea plant clings to a support are modified leaves. After it has “lassoed” a support, a tendril forms a coil that brings the plant closer to the support. Tendrils are typically modified leaves, but some tendrils are modified stems, as in grapevines. ...
... pea plant clings to a support are modified leaves. After it has “lassoed” a support, a tendril forms a coil that brings the plant closer to the support. Tendrils are typically modified leaves, but some tendrils are modified stems, as in grapevines. ...
lecture9
... columnar cells and unite vertically to form a Sieve Tube. STMs have no nucleus at maturity and depend on CC to regulate physiological processes. Each STM has one to several CC. The Sieve Plate is analogous to a Perforation Plate in vessels. ...
... columnar cells and unite vertically to form a Sieve Tube. STMs have no nucleus at maturity and depend on CC to regulate physiological processes. Each STM has one to several CC. The Sieve Plate is analogous to a Perforation Plate in vessels. ...
Plant Evolution and Plant Form and Function
... Concept: Growth, morphogenesis, and differentiation produce the plant body. -By increasing cell number, division in meristems increases the potential for growth. However, it is cell expansion that accounts for the actual increase in plant mass. -Morphogenesis—the development of body form and organi ...
... Concept: Growth, morphogenesis, and differentiation produce the plant body. -By increasing cell number, division in meristems increases the potential for growth. However, it is cell expansion that accounts for the actual increase in plant mass. -Morphogenesis—the development of body form and organi ...
NO APICAL MERISTEM (MtNAM) regulates
... stages. Mutations in CUC1 ⁄ CUC2 of A. thaliana and in NAM of Petunia lead to fusion of cotyledons and some floral organs, as well as severe defects of the primary apical meristem (Souer et al., 1996; Aida et al., 1997; Takada et al., 2001). Double mutants cuc3 ⁄ cuc2 or cuc3 ⁄ cuc1 in A. thaliana a ...
... stages. Mutations in CUC1 ⁄ CUC2 of A. thaliana and in NAM of Petunia lead to fusion of cotyledons and some floral organs, as well as severe defects of the primary apical meristem (Souer et al., 1996; Aida et al., 1997; Takada et al., 2001). Double mutants cuc3 ⁄ cuc2 or cuc3 ⁄ cuc1 in A. thaliana a ...
plant parts - Petal School District
... Roots • Root hairs: – Tiny one celled hair like extensions of the epidermal cells located near the tips of the roots where vascular tissues have formed. – Increase surface area – Absorb water and minerals from soil ...
... Roots • Root hairs: – Tiny one celled hair like extensions of the epidermal cells located near the tips of the roots where vascular tissues have formed. – Increase surface area – Absorb water and minerals from soil ...
Plant Structure and Function Classwork What are flowering plants
... 33. Identify the function of flower petals. 34. Describe the structure of the carpel. 35. What forms the first cell of the next sporophyte generation? 36. Identify the male gametophyte. 37. Where does the female gametophyte generate? ...
... 33. Identify the function of flower petals. 34. Describe the structure of the carpel. 35. What forms the first cell of the next sporophyte generation? 36. Identify the male gametophyte. 37. Where does the female gametophyte generate? ...
July/August 2011 - Florida Council of Bromeliad Societies
... Molina (pew'ya) (Name taken from the Mapuche Indians of Chile, meaning "point") The genus Puya has several distinctions: It is reputed to be the most primitive member of the entire bromeliad family; it has the largest species in the family, and it has the species that takes the longest to bloom. Thi ...
... Molina (pew'ya) (Name taken from the Mapuche Indians of Chile, meaning "point") The genus Puya has several distinctions: It is reputed to be the most primitive member of the entire bromeliad family; it has the largest species in the family, and it has the species that takes the longest to bloom. Thi ...
Plant Data
... Leaflets have fine hairs beneath and none to very slightly hairy on upper surface, fine hairlike point at tip Relatively short petioles, petioles branching singly from stem Very few flowers left, blue, no hair on banner, possible very slight fuzz at edges Seed pods dry, open and mottled Photo No. 65 ...
... Leaflets have fine hairs beneath and none to very slightly hairy on upper surface, fine hairlike point at tip Relatively short petioles, petioles branching singly from stem Very few flowers left, blue, no hair on banner, possible very slight fuzz at edges Seed pods dry, open and mottled Photo No. 65 ...
Station 14 – Fruit- Observe the specimens at this
... 2. What function do you think the fleshy part (white) of this fruit serves for the seed? (page 569)_____________________ 3. A bell pepper is considered to be a fruit because it contains _______________________________________ 4. Some fruits are classified as being dry fruits while others are classif ...
... 2. What function do you think the fleshy part (white) of this fruit serves for the seed? (page 569)_____________________ 3. A bell pepper is considered to be a fruit because it contains _______________________________________ 4. Some fruits are classified as being dry fruits while others are classif ...
UNIT 1: Grocery Store Botany
... Tubers (L. tuber = tumor, knob, hump): Is the potato (Solanum tuberosum) [photo] a modification of a stem or swollen rhizome? Recall that stems bear nodes where buds occur. What is an “eye” of a potato? ----- The “eye” is a lateral bud, an attribute of stems. Is the typical potato collected on the g ...
... Tubers (L. tuber = tumor, knob, hump): Is the potato (Solanum tuberosum) [photo] a modification of a stem or swollen rhizome? Recall that stems bear nodes where buds occur. What is an “eye” of a potato? ----- The “eye” is a lateral bud, an attribute of stems. Is the typical potato collected on the g ...
Unit 6 Homework
... 3. List several adaptations of land plants significant for terrestrial survival. 4. Describe or draw the generic diagram to explain alternation of generations. 5. Describe a few features common to Bryophytes. Include the 3 phyla. 6. What is the dominant phase of the moss life cycle? Briefly describe ...
... 3. List several adaptations of land plants significant for terrestrial survival. 4. Describe or draw the generic diagram to explain alternation of generations. 5. Describe a few features common to Bryophytes. Include the 3 phyla. 6. What is the dominant phase of the moss life cycle? Briefly describe ...
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.