Plant Cell Plant cells are eukaryotic cells or cells with membrane bound nucleus. Generally‚ plant cells are larger than animal cells and are mostly similar in size and are rectangular or cube shaped. Plant cells are similar to animal cells in being eukaryotic and they have similar cell organelles. What is a Plant Cell? Back to Top Plant cells are eukaryotic cells i.e.‚ the DNA in a plant cell is enclosed within the nucleus. The most important distinctive structure of plant cell is the presence
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1. 2. Basis of life are (a) nucleic acids (c) nucleoproteins Life span of parrot is (a) 140 years (c) 80 years Theory of ’saltations’ (b) proteins (d) amino acids (b) 60 years (d) 40 years was given by (c) Mixed (d) None of these 11. Pappus helps in dispersal of pollen in (a) Asteraceae (b) Brassicaceae (c) Malvaceae (d) Solanaceae 12. In which of the following groups are seeds present? (a) Psilophyta (c) Lycopodiophyta 13. Match the columns. Column I (Vitamins) A. B. C. D. B‚ D E C
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One off the main functions of tau is to modulate the stability of axonal microtubules. Atonal mircotubule is actually a method responsible for movement of mitochondria‚ lipids‚ synaptic vesicles‚ proteins‚ and any other cell organelle to and from a neuron’s cell body‚ through the cytoplasm of its axon. Due to what tau is made up
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Sam Rausser Wednesday‚ August 17‚ 2011 3:38 PM Once glucose is made‚ glucose molecules can be converted (by plants) to… 1) monosaccharides‚ like fructose 2) Disaccharides a. Maltose (glu‐glu) seeds b. Sucrose (glu‐fru) sugar cane‚ sugar beets 3) Polysaccharides a. Starch‚ food storage in roots (chains of glucose) b. Cellulose‚ plant structure (chains of glucose) 4) Amino Acids a. Glucose + N from ground 5) Lipids‚ specifically oils which are energy source in seeds & phospholipids found in membranes
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relationship between a fungus and photosynthetic plant or alga. | Biodiversity | The variety and abundance of organisms‚ genes and ecosystems found in a given area | Cell membrane | Semi-Permable membrane that totally surrounds the cell | Microtubules | Made up of protein and help cell movement. Provide support and shape | Species | Represents organisms that are related in the same way | Domain | The highest and most broadest
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The most common type of deaf-blindness disease in the world is Usher Syndrome. Usher Syndrome is a clinically and genetically heterogeneous disease. It is inherited in an autosomal recessive inheritance pattern. Worldwide‚ the chance of a baby being born with Ushers Syndrome is approximately 1 in every 25‚000 babies. To date‚ there are roughly 50‚000 people with Ushers Syndrome living in the United States. As stated above‚ Ushers Syndrome is an inherited disease characterized by hearing impairment
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• Charophyceans-green algal group that shares 2 ultrastructural features with land plants; considered to be closest relatives of land plants • Rosette cellulose-synthesizing complexes-rose-shaped array of proteins that synthesize cellulose microtubules of cell walls of charophyceans and land plants • Peroxisome-microbody containing enzymes that transfer hydrogen from various substrates to oxygen‚ producing and then degrading hydrogen peroxide • Sphenophytes-class of plants with a fossil
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albendazole‚ and mebendazole) and is commonly used to treat soil-transmitted helminth infections (Bethony et al. 2006; Geary et al. 2009). Generally‚ these drugs efficacy is due to its selective binding to β-tubulin of the nematode impeding the microtubule polymerisation of the parasite (Dye and Walker‚ 2007) and inhibition of the fumarate reductase enzyme responsible for energy generation (Barragry‚ 2011). As a result of tubulin polymerization inhibition‚ cellular transport and energy metabolism
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Human Biology Unit 1 Assignment The human body is made up of 100 trillion cells. All cells have the same basic structure (see figure 1) however some cells are specialised to suit a specific purpose. An example of this is the pancreatic beta cells found in the islets of Langerhans. These cells are specialised to synthesise the protein insulin that is involved in the metabolism of glucose in the cells. (Layden‚ 2010) Figure 1 - Picture to show basic structure of a cell. (Farrabee‚ M J. 2007) But
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Unit 13‚ task 1. P1 – Describe the microstructure of a typical animal cell and the functions of the main cell components. A typical animal cell is seen as a tiny‚ three dimensional sac which is in fact made up of many components‚ each as important as the other. The microstructure of an animal cell was in fact uncovered mainly through the use of both cell fractionation and electron microscopy. Each main component has its own‚ individual function which helps a cell to function and maintains the
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