Which of the following types of food will give her the most energy per pound? One should spend 1 hour daily for 2-3 months to learn and assimilate Organic Chemistry comprehensively. Explain. Some hydrocarbons have only single bonds and appear as a chain (which can be a straight chain or can have branches) of carbon atoms also bonded to hydrogen atoms. Which of the following roles do lipids NOT play in our bodies? Identify the type of hydrocarbon in each structure. Carbon atoms bond reasonably strongly with other carbon atoms. Lipids are a major component of the phospholipid bilayer. All of the following statements are true, EXCEPT _____. Test out what you understood from your introductory course by answering the quiz below. Organic chemistry conversions of class 12 are major problems you have to do in examinations. Which of the following statements about lipids is false? Organic chemistry is the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds, which include not only hydrocarbons but also compounds with any number of other elements. The breakdown of protein secondary, tertiary, and quaternary structure is called _____. The tertiary structure is a complete 3-D structure of a protein, or peptide, including all its atom arrangements, while a quaternary structure is a complete 3-D structure of a protein that contains multiple peptides or proteins. Figure 1.3. If a protein is immersed in an unfavorable pH solution, which structures are most likely to disassociate first, and why? Introduction to Organic Chemistry Chapter Exam Instructions. The stem meth– means one carbon atom, so methane is an alkane with one carbon atom. If an OH group (also called a hydroxyl group) is substituted for a hydrogen atom in a hydrocarbon molecule, the compound is an alcohol. These hydrocarbons are called alkenes (see section 3.2. for more information) Note that the names of alkenes have the same stem as the alkane with the same number of carbon atoms in its chain but have the ending –ene. appear. to them later with the "Go To First Skipped Question" button. Organic chemistry conversions questions,examples,problems. In contrast, increases in unsaturated fats (either mono- or polyunsaturated) have been linked to a lower incidence of certain diseases. Organic chemistry is the branch of chemistry that deals with organic molecules. © copyright 2003-2020 Study.com. All other organisms besides plants and some algae. Which fraction from the fractional distillation of The fractions obtained by fractional distillation of The three smallest alkanes are methane, ethane, and propane. Identify organic molecules as alkanes, alkenes, alkynes, alcohols, or carboxylic acids. Which of the following characteristics distinguishes carbohydrates from other macromolecule types? Organic Chemistry I Form Three revision questions on all topics including The Mole, Organic Chemistry I, Sulphur and Its Compounds, Chlorine and Its Compounds and more. Most organic chemicals are covalent compounds, which is why we introduce organic chemistry here. This way of systematic learning … Fats are combinations of long-chain organic compounds (fatty acids) and glycerol (C3H8O3). What is a functional group? Many organic compounds are considerably more complex than the examples described here. A difference as simple as the difference between a single and double carbon–carbon bond can have a significant impact on health. Polymers are broken down from dimers during dehydration. petroleum have different uses. By Vincenttan | Last updated: Aug 29, 2018. Which fuel, on combustion, does not form a A carbon–carbon double bond is considered a functional group because carbon–carbon double bonds chemically react in specific ways that differ from reactions of alkanes (for example, under certain circumstances, alkenes react with water); a carbon–carbon triple bond also undergoes certain specific chemical reactions. Good luck! Which of the following carbohydrates can be readily used by his body as a source of fuel? Most of these organizations also recommend decreasing the total amount of fat in the diet. appear. An organism that consumes living producers. These hydrocarbons are called alkanes (saturated hydrocarbons). They are structural components of the cell. Until the early nineteenth century, chemists had managed to make many si… Alcohols have an OH functional group in the molecule. Its diversity is based on the following: Curiously, elemental carbon is not particularly abundant. Formulae and molecular models of the three simplest alkanes. The tertiary structure contains two beta protein subunits while the quaternary structure consists of two alpha protein subunits. This molecule has an alcohol functional group. Neither methanol nor isopropyl alcohol should be ingested, as they are toxic even in small quantities. Thus, ethene is an alkene with two carbon atoms per molecule, and propene is a compound with three carbon atoms and one double bond. Polymers are synthesized from dimers during condensation. What is the difference in the ways the two oxygen atoms in the carboxyl group are bonded to the carbon atom? All rights reserved. Larger hydrocarbons such as kerosene or lubricating oil undergo cracking to produce smaller hydrocarbons such as p_________. Organic chemistry is the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds, which include not only hydrocarbons but also compounds with any number of other elements. We'll review your answers and create a Test Prep Plan for you based All the best and keep practicing, Removing question excerpt is a premium feature. Alkanes have no functional group, and they are mostly inert (unreactive).