Biology Major substances: Organic compounds – are compounds that contain carbon and were originally made by living things e.g. carbohydrates‚ lipids‚ proteins‚ nucleic acids Inorganic compounds – are compounds do not contain carbon as a main element Organic compounds | Composition | Function | Proteins | Carbon‚ hydrogen‚ oxygen and nitrogen | Used in the structure‚ storage‚ movement and transport of cells for growth and repair. | Lipids | Carbon‚ hydrogen and oxygen | Stores energy
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ALGAE Algae are eukaryotic organisms that have no roots‚ stems‚ or leaves but do have chlorophyll and other pigments for carrying outphotosynthesis. Algae can be multicellular or unicellular. Unicellular algae occur most frequently in water‚ especially in plankton. Algae are eukaryotic organisms that have no roots‚ stems‚ or leaves but do have chlorophyll and other pigments for carrying out photosynthesis. Algae can be multicellular or unicellular. Unicellular algae occur most frequently in water
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Microbiology Lecture Notes: I.Cell1/27/14 1. Robert Hooke 2. Basic unit of structure and function in all living things. a. Unicellular à Microscopic b. Multicellular à Microscopic & Macroscopic c. 2 main cell groups: 1. Eukaryote = True Nucleus 2. Prokaryote= Bacteria (only) a. Karyo = nucleus‚ pro= pre‚ Eu= true 3. Components of a cell: a. Nucleus: brain of cell; has nuclear membrane/envelope 1. DNA à Chromosomes (Genes) à make protein à Macromolecule
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thus chemical energy is the product. This is different from respiration because respiration transforms chemical energy into energy usable by cells; in this case chemical energy is the source. Photosynthesis occurs in the chloroplasts‚ using the chlorophyll inside of the chloroplasts‚ while respiration occurs in the mitochondria. Photosynthesis produces oxygen as a by-product‚ while aerobic respiration requires oxygen to even work. Photosynthesis produces NADPH2 in its workings‚ while aerobic respiration
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energy from sunlight to produce sugar‚ which cellular respiration converts into ATP‚ the "fuel" used by all living things. The conversion of unusable sunlight energy into usable chemical energy‚ is associated with the actions of the green pigment chlorophyll. Most of the time‚ the photosynthetic process uses water and releases the oxygen. Cellular respiration allows organisms to use (release) in the chemical bonds of glucose(C6H12O6). The energy in glucose is used to produce ATP. Cells use
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The three particles that make up atoms are d. protons‚ neutrons‚ and electrons. Which of the following statements about a compound is true? A. The physical and chemical properties of a compound are usually very different from those of the elements from which it is formed. A covalent bond is formed as the result of b. sharing electrons. In a water molecule‚ shared electrons spend more time around the oxygen atom than the hydrogen atoms. As a result‚ the oxygen atom is a. slightly negative.
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create their own food and energy. They also use energy from light. However‚ not all organisms that use light as a source of energy carry out photosynthesis. Chloroplasts are necessary for photosynthesis to take place‚ and they specifically use chlorophyll‚ the green pigment involved in photosynthesis. Because of this‚ photosynthesis most often takes place in the leaves of plants‚ since that is where the chloroplasts can be found. Since photosynthesis requires carbon dioxide‚ water‚ and sunlight‚
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of the highlights of the chapter. An awesome example of a chemical reaction is that of photosynthesis‚ found in green plants. In photosynthesis‚ plants absorb carbon dioxide gas from the air‚ with energy from the sun‚ water from the soil and chlorophyll to make carbohydrates for food. Figure 13.1 – The Reaction of A wire of magnesium with Oxygen (page 342) of the textbook also shows how a wire of magnesium metal and oxygen in the
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Malunggay – Scientific name: Moringa oleifera Lam. Dry skin has a low level of sebum and can be prone to sensitivity. The skin has a parched look caused by its inability to retain moisture. It usually feels "tight" and uncomfortable after washing unless some type of moisturizer or skin cream is applied. Chapping and cracking are signs of extremely dry‚ dehydrated skin. Dryness is exacerbated by wind‚ extremes of temperature and air-conditioning‚ all of which cause the skin to flake‚ chap and feel
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8/22/12 1) The most basic view of food is to consider it as 2) Kosher foods: a) A status symbol a) Cannot contain pork* b) Fuel to provide energy* b) Must be blessed by a Rabbi c) A cultural identity c) Cannot include any ruminants d) Kosher d) Cannot include alcohol 3) The major components of food include all of the following EXCEPT 4) Corned beef is a national dish associated with what country? a) Water a) Ireland* b) Protein b) Scotland c)
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