Properties of life‚ Basic Chemical Terminology‚ Molecules and Compound of a cell Properties of life: All living things are made of cells and keep certain characteristics in common. All living things are divided into several characteristics: order‚ reproduction‚ growth and development‚ energy processing‚ respond to the environment‚ regulation and evolution. Cells are either made of prokaryotic or eukaryotic. Prokaryotic is simple‚ small and lacking membrane-enclosed membrane. Eukaryotic
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The organic compounds are carbohydrates‚ lipids‚ nucleic acids‚ and proteins. Each which are made up of elements and monomers. Each organic compound has it’s own function and chemical structure. Each compound also plays a role in living organisms. Carbohydrates are composed of several elements‚ and one monomer. The elements include: carbon‚ hydrogen‚ and oxygen atoms. Carbohydrates are composed of only one monomer‚ which is monosaccharides. Monosaccharides are the simplest carbohydrates‚ and
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The effect of drugs‚ toxins‚ and other molecules on synapse and synapse transmission. The synapse is the small gap separating two neurons‚ the presynaptic neuron (neuron that carries the impulse to the synapse‚) and postsynaptic neuron (neuron that carries the impulse away from the synapse.) It separates the axon terminals of the presynaptic neuron from the postsynaptic neuron. The synapse is made of three major parts: a presynaptic neuron‚ a postsynaptic neuron‚ and a synaptic cleft. The presynaptic
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3) What does sodium chloride represent? Sodium chloride represents the two atoms that when put together create a molecule NaCl 4) Explain the concept of an ionic bond. An ionic bond happens when two or more ions bond together because of their opposite charge. They are drawn to each other like magnets because of their opposite charge. 5) Why does the compound sodium
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Unit 10: Biological Molecules and Metabolic Pathways C: Explore the factors that can affect the pathways and the rate of photosynthesis in plants The following report is about the factors which can affect the pathways and the the rate of photosynthesis in plants. This report will cover what photosynthesis is ‚ the factors which may affect photosynthesis in working poorly‚ light independant and dependant reaction. An investigation will be carried out which will include the factors that affect photosynthesis
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BIOLOGY TENTH EDITION Global Edition Campbell • Reece • Urry • Cain • Wasserman • Minorsky • Jackson 5 Biological Macromolecules and Lipids Topic 1 Biological Molecules (Part 4) Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick © 2015 Pearson Education‚ Inc. Learning Outcome a) Describe structure and composition of nucleic acids‚ DNA and RNA. b) Discuss the importance of base pairing and hydrogen bonding. ©© 2015 Pearson Education Ltd 2011 Pearson Education‚ Inc. Concept
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Neuroscience: Neurotransmitters (small molecule and neuroactive)‚ storage release removal and disease. 1. The brain is made up of neurons that process and transmit information by electrochemical signaling. Neurotransmitters are endogenous chemicals which relay‚ amplify‚ and modulate signals between a neuron and another cell. Chemical messengers must fulfill four criteria to be considered a transmitter. These four steps include the synthesis of a transmitter substance‚ the storage and release of
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Analysis: The purpose of this lab is to find out how does the concentration of a saline solution affect the movement of the solvent molecules. Before the experiment‚ it was predicted that the saline solution in baggies would remain inside‚ without mixing with the water‚ and that the mass would not change. Throughout the experiment‚ the saline solution was added into the baggie‚ it was discovered that a small portion of the saline solution would leave the bag. In the baggie that has 0.2 percent
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What kind of molecules can and cannot pass easily across a lipid bilayer? Structure of a lipid bilayer A lipid bilayer is a membrane mainly composed of lipid molecules‚ usually a phospholipids (See Figure 1). Phospholipids are formed from 3 components :- (1) 2 fatty acids tails – these are hydrophobic; (2) a negatively-charged hydrophilic phosphate group; and (3) a glycerol backbone. The bilayer structure is favourable energetically because the hydrophobic fatty acid tails cluster
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Cellular Respiration  Cellular respiration is the process of oxidizing food molecules‚ like glucose‚ to carbon dioxide and water. C6H12O6 + 6O2 + 6H2O → 12H2O + 6 CO2 The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the cell. The process occurs in two phases: glycolysis‚ the breakdown of glucose to pyruvic acid the complete oxidation of pyruvic acid to carbon dioxide and water In eukaryotes‚ glycolysis occurs in the cytosol. (Link to
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