Plant cells and tissues
... Plant cells and tissues Chapter 23 Apical meristems Meristem at the tip of the root or shoot Meristematic tissues are site of active cell division Indeterminate growth Growth Primary growth is the extension of plants and addition of primary tissue (epiderm, ground tissue, and vascular tissue ...
... Plant cells and tissues Chapter 23 Apical meristems Meristem at the tip of the root or shoot Meristematic tissues are site of active cell division Indeterminate growth Growth Primary growth is the extension of plants and addition of primary tissue (epiderm, ground tissue, and vascular tissue ...
9 Asexual reproduction and cloning in plants
... Make a table with these qualities under the headings of 'Sexual reproduction' and 'Vegetative reproduction'. 5 If a gardener wanted to propagate a useful variety of apple tree in a way which maintained all its desirable qualities, which of the following techniques would be used: (a) planting stem cu ...
... Make a table with these qualities under the headings of 'Sexual reproduction' and 'Vegetative reproduction'. 5 If a gardener wanted to propagate a useful variety of apple tree in a way which maintained all its desirable qualities, which of the following techniques would be used: (a) planting stem cu ...
basic horticulture – notes
... PROJECTS DUE TODAY EXAM REVIEW TODAY HANDS-ON DEMONSTRATIONS – help with set up, grade students PLANT GROWTH and DEVELOPMENT GROWTH and DEVELOPMENT are separate, but INTERELATED PROCESSES GROWTH – increase in size and weight - measurable DEVELOPMENT – differentiation of cells, tissues and organs ...
... PROJECTS DUE TODAY EXAM REVIEW TODAY HANDS-ON DEMONSTRATIONS – help with set up, grade students PLANT GROWTH and DEVELOPMENT GROWTH and DEVELOPMENT are separate, but INTERELATED PROCESSES GROWTH – increase in size and weight - measurable DEVELOPMENT – differentiation of cells, tissues and organs ...
1.Potato – This is a stem, an underground storage stem called a
... leaves bud from it when left on the counter too long. 2.Carrot – This is a modified tap root, for storage. 3.Celery – Leaf; the part we eat is an enlarged petiole (the stem of the leaf). 4.Broccoli tops — These are sometimes called florets, meaning flowers. They are immature flowers. 5.Sweet potato ...
... leaves bud from it when left on the counter too long. 2.Carrot – This is a modified tap root, for storage. 3.Celery – Leaf; the part we eat is an enlarged petiole (the stem of the leaf). 4.Broccoli tops — These are sometimes called florets, meaning flowers. They are immature flowers. 5.Sweet potato ...
Plant Science Unit 7 Review – Sexual Propagation 7.1 Define Terms
... B. ______________________: ...
... B. ______________________: ...
plant_Kingdom
... Hornworts look like liverworts except that they have curved structures growing out of them. They live in moist soil mixed in grasses. ...
... Hornworts look like liverworts except that they have curved structures growing out of them. They live in moist soil mixed in grasses. ...
Parts of a Flower
... • Most photosynthesis takes place in the palisade mesophyll. • Below the palisade mesophyll is the spongy mesophyll, which is composed of loosely packed, irregularly shaped cells. • These cells usually are surrounded by many air spaces that allow carbon dioxide, oxygen, and water vapor to freely flo ...
... • Most photosynthesis takes place in the palisade mesophyll. • Below the palisade mesophyll is the spongy mesophyll, which is composed of loosely packed, irregularly shaped cells. • These cells usually are surrounded by many air spaces that allow carbon dioxide, oxygen, and water vapor to freely flo ...
Botany11 - Coastalzone
... Usually located above ground, provide the structural support for leaves and flowers. Internal transport of water, nutrition via the xylem and phloem. New tissues produced at the apical (primary growth) and lateral (secondary growth) meristems. As always, form is related to function… In DICOTS the ep ...
... Usually located above ground, provide the structural support for leaves and flowers. Internal transport of water, nutrition via the xylem and phloem. New tissues produced at the apical (primary growth) and lateral (secondary growth) meristems. As always, form is related to function… In DICOTS the ep ...
Kingdoms of Life
... most are saprobes (=decomposers) eat dead organic matter; fungi are absorptive heterotrophs: they digest outside their bodies the most visible part of most fungi is the fruiting body which produces the spores; it takes the form of a mushroom, bracket fungus, morrel, toadstool or just appears as a fu ...
... most are saprobes (=decomposers) eat dead organic matter; fungi are absorptive heterotrophs: they digest outside their bodies the most visible part of most fungi is the fruiting body which produces the spores; it takes the form of a mushroom, bracket fungus, morrel, toadstool or just appears as a fu ...
Purple Loosestrife (Lythrum salicaria)
... Showy flowers with 4 to 8 wrinkled petals. Sepals have 8, 10 or 12 prominent green veins. Leaves and Stems: Opposite leaves without stalks, some"mes in spirals (or whorls) around the stem. Lance-shaped, slightly hairy with smooth edges. S"ff, square or octagonal stem. Can be smooth or with so# hairs. ...
... Showy flowers with 4 to 8 wrinkled petals. Sepals have 8, 10 or 12 prominent green veins. Leaves and Stems: Opposite leaves without stalks, some"mes in spirals (or whorls) around the stem. Lance-shaped, slightly hairy with smooth edges. S"ff, square or octagonal stem. Can be smooth or with so# hairs. ...
File
... 2; netlike veins in leaves, flower parts in multiples of four or five, vascular tissue arranged in rings in stem 7. Other characteristics affect the outward appearance of flowering plants as well as when they should be planted and harvested. 8. woody stems: stiff, often thick stems containing the de ...
... 2; netlike veins in leaves, flower parts in multiples of four or five, vascular tissue arranged in rings in stem 7. Other characteristics affect the outward appearance of flowering plants as well as when they should be planted and harvested. 8. woody stems: stiff, often thick stems containing the de ...
plants - Miami Beach Senior High School
... Is it a plant worksheet answers The items on the list biologically considered to be plants are fern, grass, moss, vine, tomato, flower, tree, onion, weed, bush, cactus, cabbage, dandelion, and carrot. ...
... Is it a plant worksheet answers The items on the list biologically considered to be plants are fern, grass, moss, vine, tomato, flower, tree, onion, weed, bush, cactus, cabbage, dandelion, and carrot. ...
PPT
... dissolved sugars from the leaves to other parts of the plant – Formed from sieve tube cells making a continuous duct – Alive! But do not have nucleus – Connected to small nucleated companion cells that direct their activities ...
... dissolved sugars from the leaves to other parts of the plant – Formed from sieve tube cells making a continuous duct – Alive! But do not have nucleus – Connected to small nucleated companion cells that direct their activities ...
Kingdom Plantae 2 - Bio-Guru
... but other epidermal cells do not. • When the two guard cells are turgid (swollen with water), the stoma is open • The increase in osmotic pressure in the guard cells is caused by an uptake of potassium ions (K+). • Abscisic acid (ABA) is the hormone that triggers closing of the stomata when there is ...
... but other epidermal cells do not. • When the two guard cells are turgid (swollen with water), the stoma is open • The increase in osmotic pressure in the guard cells is caused by an uptake of potassium ions (K+). • Abscisic acid (ABA) is the hormone that triggers closing of the stomata when there is ...
Plant Biology Review ()
... Leaf structure • Mesophyll is between epidermis layers – Palisade layer is more ordered to maximize photosynthesis – Spongy layer is more diffuse, leaving space for gas movement ...
... Leaf structure • Mesophyll is between epidermis layers – Palisade layer is more ordered to maximize photosynthesis – Spongy layer is more diffuse, leaving space for gas movement ...
Cycas Structure and reproduction
... Endodermis with casparian thickenings Pericycle is multilayered with thin cells having starch grains Vascular tissue within is typically radial Roots usually diarch to tetraarch, rarely polyarch Vessels absent in vascular tissue Pith reduced or absent ...
... Endodermis with casparian thickenings Pericycle is multilayered with thin cells having starch grains Vascular tissue within is typically radial Roots usually diarch to tetraarch, rarely polyarch Vessels absent in vascular tissue Pith reduced or absent ...
Molecular genetic approaches to plant development
... meristematic cell is not dependent on its lineage. There doesn't seem to be a precise relationship between a cell's position in the meristem and its fate. The first six leaves of an Arabidopsis plant are derived from most of the cells that make up a meristem. This suggests that the remainder of the ...
... meristematic cell is not dependent on its lineage. There doesn't seem to be a precise relationship between a cell's position in the meristem and its fate. The first six leaves of an Arabidopsis plant are derived from most of the cells that make up a meristem. This suggests that the remainder of the ...
PDF (6 pages) - Cheatography.com
... Lipids - energy storage (fats/oils), membrane structure (phospholipids, ...
... Lipids - energy storage (fats/oils), membrane structure (phospholipids, ...
1 - BY 124 SI
... C. The lower epidermis D. The mesophyll E. The stomata 26. Which best describes a characteristic of tracheids? A. They are only found in gymnosperms. B. They are only produced early in the growing season. C. They are also called vessel elements. D. They maximize the delivery of water to new, expandi ...
... C. The lower epidermis D. The mesophyll E. The stomata 26. Which best describes a characteristic of tracheids? A. They are only found in gymnosperms. B. They are only produced early in the growing season. C. They are also called vessel elements. D. They maximize the delivery of water to new, expandi ...
1 - BY 124 SI
... C. The lower epidermis D. The mesophyll E. The stomata 26. Which best describes a characteristic of tracheids? A. They are only found in gymnosperms. B. They are only produced early in the growing season. C. They are also called vessel elements. D. They maximize the delivery of water to new, expandi ...
... C. The lower epidermis D. The mesophyll E. The stomata 26. Which best describes a characteristic of tracheids? A. They are only found in gymnosperms. B. They are only produced early in the growing season. C. They are also called vessel elements. D. They maximize the delivery of water to new, expandi ...
Higher Biology - Unit 1 Cell Biology
... Explain how sex cells are suited to their function. State that sex cells are gametes. Identify the structures of the male reproductive system and give their functions. Identify the structures of the female reproductive system and give their functions. Describe the process of fertilisation in land an ...
... Explain how sex cells are suited to their function. State that sex cells are gametes. Identify the structures of the male reproductive system and give their functions. Identify the structures of the female reproductive system and give their functions. Describe the process of fertilisation in land 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.