Genetic Modification of Plants using Agrobacterium Agrobacterium tumefaciens is a rod-shaped aerobic soil bacterium that can infect dicot plants especially apple‚ pear‚ peach‚ cherry‚ almond‚ raspberry‚ rose & grapevines. It’s method of infection is unique‚ for it transfers some of its DNA to the chromosomes of the plant cell‚ causing a tumour to grow & causing the plant to make special organic food molecules for the bacterium. The process begins when a plant is wounded‚ often near the base
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Anatomy of Flowering Plants Tissues A tissue is a group of cells having a common origin and usually performing a common function. Based on cell’s capability to divide‚ tissues are classified into two main groups which are as follows: 1. Meristematic and 2. Permanent tissues. Meristematic Tissues: Cells in the meristematic tissue are capable of dividing. Meristematic tissues are found in those regions which need to grow continuously. For example‚ root tips and stem tips contain meristematic
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Biology exam review 2.1 Kingdom King Phylum Philip Class Came Order Over Genus Germany Species South Domain Bacteria Archea Eukarya Kingdom Eubacteria Archeabacteria Protista‚ Fungi‚ Plantae‚ Animalia. # of cells Prokaryote Prokaryote Eukaryote Cell structure Cell walls made of peptidolglycan (coat of sugars) Cell walls without peptidoglycan Fungi-cell walls with chitin. Protista-cell walls of cellulose in some‚ and in others chloroplasts. Plantae-cell walls
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Exercise 5: Gymnosperms and Angiosperms ______________________________________________________________________________ OBJECTIVES: 1. Describe the distinguishing features of gymnosperms and angiosperms. 2. Understand the evolutionary significance of pollen and seeds. 3. Understand the function of a cone‚ a flower‚ and a seed. 4. Relate the life cycle of angiosperms to the other phyla of the plant kingdom. ______________________________________________________________________________ INTRODUCTION
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Plants Study Guide Allison Henry G1 Plants Charophyceans (green algae)- closest relatives of land plant 4 Shared Traits 1. Rose-shaped complexes for cellulose synthesis 2. Peroxisome enzymes 3. Structure of flagellated sperm 4. Formation of phragmoplast a. Group of microtubules that form between daughter nuclei during division of cells Adaptations In charophyceans- layer of sporopollenin prevents exposed zygotes from drying out Allows plants to live further from water Derived Traits of
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nonvascular? My plant is vascular because it has true roots‚ stems‚ and leaves. It has a system for transporting food and water. My plant has tube –like structures that provide support and circulate water and food throughout the plant. Monocot or Dicot? My plant is a dicot because it’s flowers have either four or five petals or multiples of these numbers. The leaves are wide with branching veins. The vascular tube structures are arranged in circular bundles. How the Dwarf Gardenia Survives‚ Reproduces
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Plant Structure and Function Plant Body The unique organization of tissues in flowering plants is part of the reason why they are the dominant group of the plant kingdom. Monocots and Dicots Meristems Meristems – region of undifferentiated cells that can divide rapidly. Apical meristems – shoots and tip of roots (primary growth) Lateral meristems – thickening of the cambium (secondary growth) Plant Tissues Plant Tissues Xylem – conducts water and mineral ions; fluids can
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Why did plants exposed to no light grow better than the plants exposed to light? The plants exposed to no light performed better than those exposed to light is most likely caused by the plants exposed to no light having more water than those in light. Even though the amount and frequency of water added to all plants were kept the same‚ the amount of water the plants in no light had access to was more than the amount of water the plants in light had. This is due to two reasons: a) because the plants
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Biology: Unit 1: Diversity Of Life Fungi Fungi: are multi-cellular heterotrophs that use external digestion‚ and often grow out of sight‚ underground → fungi have nothing in common with plants other then the fact that they are stationary‚ and grow in the ground. They are not photosynthetic‚ and they do not produce their own food. Characteristics/ Cell Structure: * Mesh like bodies‚ composed of branching networks of filaments called mycelium * Mycelium: a branched mass of hyphae
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Biology 110-12 . 1. What are the five kingdoms and give a brief description of each kingdom? Answer: Monera- Single celled prokaryotes;bacteria Protista - Mostly single celled eukaryotes; Photoautotrophs (algae) and heterotrophs (protozoa) Fungi-Multicellular eukaryotes that feed by extracellular digestion and absorption Heterotrophs: includes decomposers‚ many pathogens and parasites Plantae-Multicellular photosynthetic autotrophs producers Animalia- Diverse multicellular heterotrophs Range from
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