Monocots vs Dicots
... Plants are the fundamental building blocks of life on earth. Plants are life forms belonging to the kingdom Plantae. The scientific study has revealed at least 500,000 species of plants. The types of plants vary in size from microscopic algae, to huge sequoia trees more than 8m (26 ft) tall. P ...
... Plants are the fundamental building blocks of life on earth. Plants are life forms belonging to the kingdom Plantae. The scientific study has revealed at least 500,000 species of plants. The types of plants vary in size from microscopic algae, to huge sequoia trees more than 8m (26 ft) tall. P ...
plant structure and function
... – Both have thick secondary cell walls – Both are dead at maturity – Chains of tracheids and vessel elements form tubes that make up the vascular tissue called xylem ...
... – Both have thick secondary cell walls – Both are dead at maturity – Chains of tracheids and vessel elements form tubes that make up the vascular tissue called xylem ...
Plant Reproduction - holytrinitywhitestone.com
... Can be done from seeds, leaves, roots, stems, etc. Sexual Reproduction HOW? ...
... Can be done from seeds, leaves, roots, stems, etc. Sexual Reproduction HOW? ...
roots, stems, and leaves
... – Layer of tightly packed cells called the epidermis – First line of defense against damage and infection – Waxy layer called cuticle reduces water loss ...
... – Layer of tightly packed cells called the epidermis – First line of defense against damage and infection – Waxy layer called cuticle reduces water loss ...
Male Parts Anther
... producing part of the plant. The number of stamen are usually the same as the number of ...
... producing part of the plant. The number of stamen are usually the same as the number of ...
2- (G) Explain what true breeding is
... fruits stick to animal fur → carried away from parent plant 4/ Self-explosive: e.g. gorse when fruits dry they explode sending the seeds away from the mother plant - stem cut just below leaf/leaf bud - Hormone powder dusted onto basis of stem - stem placed in damp compost - new roots and shoots de ...
... fruits stick to animal fur → carried away from parent plant 4/ Self-explosive: e.g. gorse when fruits dry they explode sending the seeds away from the mother plant - stem cut just below leaf/leaf bud - Hormone powder dusted onto basis of stem - stem placed in damp compost - new roots and shoots de ...
2- (G) Explain what true breeding is
... fruits stick to animal fur → carried away from parent plant 4/ Self-explosive: e.g. gorse when fruits dry they explode sending the seeds away from the mother plant - stem cut just below leaf/leaf bud - Hormone powder dusted onto basis of stem - stem placed in damp compost - new roots and shoots de ...
... fruits stick to animal fur → carried away from parent plant 4/ Self-explosive: e.g. gorse when fruits dry they explode sending the seeds away from the mother plant - stem cut just below leaf/leaf bud - Hormone powder dusted onto basis of stem - stem placed in damp compost - new roots and shoots de ...
Plant and fungi review key
... (paranchyma, collenchyma, sclerenchyma) , vascular tissue (xylem, phloem), Dermal tissue Ground tissue is made up of paranchyma, collenchyma, sclerenchyma, Paranchyma – makes up cells which do most of the photosynthesis, growth and repair Collenchyma – living flexible yet hard tissues which give pla ...
... (paranchyma, collenchyma, sclerenchyma) , vascular tissue (xylem, phloem), Dermal tissue Ground tissue is made up of paranchyma, collenchyma, sclerenchyma, Paranchyma – makes up cells which do most of the photosynthesis, growth and repair Collenchyma – living flexible yet hard tissues which give pla ...
Trees
... Meristems – Cells that produce other cells Differentiation – Change in the cells structure to assume a needed function Apical meristems – Meristems located at the ends of shoots/buds and roots (primary growth) Cambium – Lateral Meristems that produce the tree’s vascular system (secondary growth) Cor ...
... Meristems – Cells that produce other cells Differentiation – Change in the cells structure to assume a needed function Apical meristems – Meristems located at the ends of shoots/buds and roots (primary growth) Cambium – Lateral Meristems that produce the tree’s vascular system (secondary growth) Cor ...
Phytohormones - Napa Valley College
... genes in the nucleus Secondary messengers mediate the phytohormone responses 1. Involve in the transfer informa:on from sources to targets 2. Amplify the signal produced by the phytohormone Hormone, from ...
... genes in the nucleus Secondary messengers mediate the phytohormone responses 1. Involve in the transfer informa:on from sources to targets 2. Amplify the signal produced by the phytohormone Hormone, from ...
Lilium longiflorum - Aggie Horticulture
... Oregon tests new cultivars • Single-nosed vs. double-nosed ...
... Oregon tests new cultivars • Single-nosed vs. double-nosed ...
Parts of a Vascular Plant
... surrounding the central column, a cylinder of cells called pericycle: branch or lateral roots form from ...
... surrounding the central column, a cylinder of cells called pericycle: branch or lateral roots form from ...
plant packet_ans
... Collenchyma – thicker and uneven, provide support Sclerenchyma - thick and even, used for support and structure where growth is no longer occurring 13. What are the three types of plant tissue systems and what are their functions? Dermal – forms outside covering, absorption, protection, and ga ...
... Collenchyma – thicker and uneven, provide support Sclerenchyma - thick and even, used for support and structure where growth is no longer occurring 13. What are the three types of plant tissue systems and what are their functions? Dermal – forms outside covering, absorption, protection, and ga ...
Part I. Predictions
... the soil. The more root area a plant has, the more water and nutrients it can absorb. There are two types of root systems- taproot and fibrous. A taproot system consists of a long, thick main root with thin branching roots growing off the main root. A fibrous roots system consists of several main ro ...
... the soil. The more root area a plant has, the more water and nutrients it can absorb. There are two types of root systems- taproot and fibrous. A taproot system consists of a long, thick main root with thin branching roots growing off the main root. A fibrous roots system consists of several main ro ...
SampleExam - Personal.psu.edu
... What is the definition of a secondary metabolite? What is believed to be the function of many of them? Name one secondary metabolite utilized by humans. (4 pts.) ...
... What is the definition of a secondary metabolite? What is believed to be the function of many of them? Name one secondary metabolite utilized by humans. (4 pts.) ...
Plant Responses to Abiotic Environment
... • Auxin at top of plant is produced in high concentrations so shoot grows fast but lateral buds stay dormant unless they are lower down the plant where the concentration is lower. This gives many plants and trees their triangular shape. • Cytokinins from roots stimulate lateral buds making them grow ...
... • Auxin at top of plant is produced in high concentrations so shoot grows fast but lateral buds stay dormant unless they are lower down the plant where the concentration is lower. This gives many plants and trees their triangular shape. • Cytokinins from roots stimulate lateral buds making them grow ...
Plant Phyla
... • Response of plants to touch • Can stunt growth • Can cause “twining” of plant tendrils with vines and climbing plants ...
... • Response of plants to touch • Can stunt growth • Can cause “twining” of plant tendrils with vines and climbing plants ...
Block I - Madhya Pradesh Bhoj Open University
... organism. Growth is a common word used to designate any change in an organism. But, it should not be confused with the development. Development is an ordered change or progress towards a more complex state. It is also an irreversible process that means a differentiated organ can not become an undiff ...
... organism. Growth is a common word used to designate any change in an organism. But, it should not be confused with the development. Development is an ordered change or progress towards a more complex state. It is also an irreversible process that means a differentiated organ can not become an undiff ...
Bio Revision
... • Almost no chance of an evolution taking place. • Identical to the parents, so diseases and bad qualities are also passed down • Struggle for light, space, nutrients and soil so most plants will remain less healthy. ...
... • Almost no chance of an evolution taking place. • Identical to the parents, so diseases and bad qualities are also passed down • Struggle for light, space, nutrients and soil so most plants will remain less healthy. ...
chapter - 5 morphology of flowering plants
... span, habit and habitat. They have well developed root and shoot systems. Root system is either tap root or fibrous. Generally, dicotyledonous plants have tap roots while monocotyledonous plants have fibrous roots. The roots in some plants get modified for storage of food, mechanical support and res ...
... span, habit and habitat. They have well developed root and shoot systems. Root system is either tap root or fibrous. Generally, dicotyledonous plants have tap roots while monocotyledonous plants have fibrous roots. The roots in some plants get modified for storage of food, mechanical support and res ...
Plant Parts and their Functions
... • Translocation-moves water and minerals from roots up to the leaves and move food from the leaves down to the roots • Supports branches, leaves, flowers, fruits and seeds ...
... • Translocation-moves water and minerals from roots up to the leaves and move food from the leaves down to the roots • Supports branches, leaves, flowers, fruits and seeds ...
Chapter 5
... 2. One important difference between the anatomy of roots and the anatomy of leaves is that a) only leaves have phloem and only roots have xylem. b) the cells of roots have cell walls that are lacking in leaf cells. ...
... 2. One important difference between the anatomy of roots and the anatomy of leaves is that a) only leaves have phloem and only roots have xylem. b) the cells of roots have cell walls that are lacking in leaf cells. ...
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.