What is the suffix for ketones?
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-one
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What is the suffix for ketones?
-one
What is the suffix for alcohols?
-ol
What is the formula for nitroethane?
CH₃CH₂NO₂
What is the formula for propanal?
CH₃CH₂CHO
What is the solubility of amides in water?
Amides with 5 carbons or less are soluble due to hydrogen bonding.
What process forms carbohydrates?
Photosynthesis, using CO2, H2O, and chlorophyll in the presence of sunlight.
What is the formula for methyl ethanoate?
CH₃COOCH₃
What is the suffix for amides?
-amide
What distinguishes saturated fatty acids from unsaturated ones?
Saturated fatty acids contain no double bonds, while unsaturated fatty acids do.
What are the two types of intermolecular forces of attraction (IMF) involved in boiling and melting substances?
Disrupting IMFs between particles and breaking IMFs between similar molecules while forming IMFs between dissimilar molecules.
What effect does branching have on the boiling point of organic compounds?
T_b increases with decreased branching because branching decreases molecular surface area.
How many naturally occurring amino acids are there?
How does bond length change with atomic size?
Bond length decreases with decreasing atomic radius/size.
What is the significance of functional groups in organic compounds?
Functional groups determine where a chemical reaction is most likely to occur and influence physical properties.
What happens to proteins when exposed to strong acids?
They are coagulated and can undergo irreversible denaturation.
What is the role of fats and oils in the body?
They are oxidized to produce energy and serve as a source of reserve food and cushioning for organs.
What are the essential components of food?
Carbohydrates, proteins, fats, minerals, water, and vitamins.
What are the two categories of drugs?
Pharmacodynamic agents and chemotherapeutic agents.
What are alcohols and phenols?
Hydrocarbon compounds with at least one hydrogen replaced by a hydroxyl group, and phenyl rings with a hydroxyl substituent.
What is the valence of carbon according to structural theory?
Carbon has a valence of four and is tetravalent.
Which carboxylic acids are soluble in water?
Carboxylic acids with five or fewer carbons.
What is the colloidal nature of proteins?
Proteins form colloidal dispersions with water and can pass through filter paper but not membranes.
How are alcohols named in IUPAC nomenclature?
Identifying the parent chain, adding alkyl + alcohol, and using the suffix -ol.
What type of bonds are formed in organic compounds?
Covalent bonds, resulting from the sharing of electrons.
What does the presence of protein in urine indicate?
It indicates damage to the membranes in the kidneys, possibly nephritis.
What is the boiling point trend of alcohols compared to hydrocarbons?
Alcohols have relatively higher boiling points than corresponding hydrocarbons due to intermolecular hydrogen bonding.
Why are carboxylic acids with five or fewer carbons soluble in water?
They can form hydrogen bonds with water.
What is the monomer of proteins?
Amino acid.
What are waxes?
Esters of high molecular weight monohydroxy alcohols.
What leads to the formation of pi (π) bonds?
Side-to-side overlap of p and d orbitals.
What distinguishes simple lipids from compound lipids?
Simple lipids are esters of fatty acids, while compound lipids contain additional groups such as phosphoric acid, carbohydrates, and nitrogen compounds.
What type of bond links amino acids together?
Peptide bonds.
What is the optimal temperature for enzyme function in the body?
About 40°C.
What is protein denaturation?
Disruption of the tertiary structure.
What are carbohydrates primarily composed of?
Carbon, hydrogen, and oxygen.
Why do amines have higher boiling points than alkanes of similar molecular weight?
Due to the possibility of hydrogen bonding in primary and secondary amines.
What factors influence the relative reactivity of carbonyl compounds?
Electron density, leaving group ability, and electronic/steric effects of the R-group.
What are the three types of lipids?
Oils, waxes, phospholipids.
What is the suffix for amines?
-amine
What leads to the formation of sigma (σ) bonds?
Head-to-head overlap of atomic or hybrid orbitals.
What is the defining feature of alkynes?
They contain at least one carbon-carbon triple bond.
How do the boiling points of esters compare to those of carboxylic acids?
Esters have lower boiling points than carboxylic acids for comparable molecular weights.
What is the inductive effect in organic compounds?
Distortion of electron distribution due to strong electron-donating or electron-withdrawing groups.
What is an apoenzyme?
The protein part of an enzyme.
What is the general formula for alkyl halides?
C_nH_(2n+1)X.
What are lipids defined by?
Their water-repelling property.
What is the formula for propanamide?
CH₃CH₂CONH₂
What is the suffix for nitriles?
-nitrile (cyanide)
How does molecular size affect the boiling point (T_b) of an organic compound?
T_b increases with increasing molecular size due to larger surface area.
How does the acidity of alcohols vary?
Alcohols are more acidic than terminal alkynes but less acidic than water, with acidity decreasing from primary to tertiary alcohols.
What are the products of oxidizing primary and secondary alcohols?
Primary alcohols convert to carboxylic acids, and secondary alcohols convert to ketones.
What is the suffix for carboxylic acids?
-oic acid
How do alkyl halides compare to alkanes in terms of polarity?
Alkyl halides are slightly more polar than alkanes due to the C–X bond.
What is the general formula for aldehydes?
R–C(=O)–H.
What is the general formula for ketones?
R–C(=O)–R.
What is the IUPAC nomenclature for carboxylic acids?
Substituents + root + suffix –oic + 'acid'.
What is the formula for propene?
CH₃CH=CH₂
What is denaturation of a protein?
It refers to the unfolding and rearrangement of the secondary and tertiary structures of a protein without breaking the peptide bonds.
What are carbohydrates classified as?
Polydroxy aldehydes and ketones, including sugars, starches, and cellulose.
What is glucose commonly referred to as?
Blood sugar.
How are ethers named in IUPAC nomenclature?
Using the format (substituents) + -oxy- + parent chain.
What is sucrose?
The most common disaccharide, consisting of a glucose unit and a fructose unit.
How do steric effects influence acidity?
Bulky substituents can enhance acidity by favoring the removal of protons.
What is the order of reactivity for carbonyl compounds?
RC–Cl > RC–O–CR' > RC–OR' > RC–NH2 (most reactive to least reactive).
What is the primary reaction mechanism for alkenes?
Alkenes primarily react through their π bond, acting as nucleophiles.
What is the difference between catabolism and anabolism?
Catabolism produces energy from nutrients, while anabolism stores nutrients or produces proteins and other substances.
What is the monomer of nucleic acids?
Nucleotide.
What are the two types of nucleic acids?
DNA and RNA.
Why do aldehydes and ketones have higher boiling points than ethers and alkanes?
Because of the polar carbonyl group.
What type of reaction do aldehydes and ketones typically undergo?
Nucleophilic addition to the carbonyl bond.
What is the formula for propanoic acid?
CH3CH2COOH.
Why are low-molecular weight alcohols soluble in water?
Because they can form hydrogen bonds with water.
What reagent is used as a disinfectant due to its ability to coagulate proteins?
70% alcohol.
What are activators and inhibitors in enzyme activity?
Activators increase enzyme activity, while inhibitors interfere with it.
What are the main functions of proteins?
Catalysis, structure, movement, defense, regulation, transport, and storage.
How do alkyl groups affect the basicity of amines in the gas phase?
They enhance the amine's basicity by inductive effect.
What are lipids?
Fatlike substances that include fats, oils, and waxes.
What distinguishes fats from oils?
Fats are saturated, while oils contain unsaturated fatty acids.
What does the iodine number indicate?
The number of double bonds in a fat or oil.
What is the saponification number used for?
To determine the molecular weight of a fat by measuring the amount of KOH that reacts with it.
What is the suffix for alkynes?
-yne
What happens to the acidity of carboxylic acids when electron-withdrawing groups (EWG) are present?
The acidity is enhanced due to dispersion of electron density and stabilization of the –COO- group.
What is the polymer of proteins?
Polypeptide.
How does polarity influence the boiling point of organic compounds?
T_b increases with increasing polarity of the molecule due to strong dipole-dipole IMFs.
How do the boiling and melting points of alkynes compare to alkenes?
Alkynes have similar boiling and melting points to those of corresponding alkenes.
What are alkanes characterized by?
Alkanes contain only C-C single bonds and C-H bonds.
What are the four levels of protein structure?
Primary, Secondary, Tertiary, Quaternary.
What is the IUPAC nomenclature for alkanes?
It consists of substituents + root + -ane.
What are the three classes of amines?
Primary (1°), secondary (2°), and tertiary (3°) amines based on the number of hydrogen atoms replaced by alkyl/aryl groups.
What is π-electron delocalization or resonance?
A concept that applies to conjugated systems, explaining bond strength and stability.
What role do coenzymes play in enzyme activity?
They are required for certain enzymes to act effectively and often contain B vitamins.
How are amines named in IUPAC nomenclature?
Using the format (substituents) + root + suffix -amine.
What are the two classes of nucleic acids?
Ribonucleic acids (RNA) and deoxyribonucleic acids (DNA).
What is the trend in basicity of amines in the aqueous phase?
3° < 2° < 1° < NH3, due to steric hindrance from bulky groups.
What is the suffix for esters?
-yl, -oate
How are proteins metabolized in the body?
They are hydrolyzed to amino acids, used for tissue building, or broken down to ammonia, carbon dioxide, and water.
What is a zwitterion?
A molecule that contains both an amine group and a carboxyl group, forming a double ion.
What are long-chain carboxylic acids commonly known as?
Fatty acids.
What is the reaction of carboxylic acids with bases?
They form carboxylate salts.
What is the antidote for mercuric chloride poisoning?
Egg white.
What is the IUPAC nomenclature for alkynes?
Substituents + root + -yne.
What are the two main types of carbohydrates?
Monosaccharides (one sugar unit) and polysaccharides (two or more units).
What is the relationship between bond strength and s-character?
The greater the s-character, the stronger the bond.
What defines ethers in terms of structure?
Ethers contain two hydrocarbon groups attached to a central oxygen atom (R–O–R').
What is Hückel’s Rule for aromatic compounds?
A compound is aromatic if it is planar, fully conjugated, monocyclic, and has (4n+2) electrons.
What type of reactions do aromatic hydrocarbons typically undergo?
Electrophilic aromatic substitution.
What is the monomer of carbohydrates?
Monosaccharide.
Why are alkanes insoluble in water?
Because they are nonpolar and cannot interact with the strong IMFs of water.
How do the boiling points of amines compare to those of alcohols?
Amines have lower boiling points than corresponding alcohols due to weaker hydrogen bonds.
How are polysaccharides broken down into monosaccharides?
Through hydrolysis.
What components make up a lipid?
3 fatty acids and 1 glycerol.
What are reducing sugars?
Sugars that can be oxidized by Cu2+, identified in Fehling's and Benedict's tests.
What does Markovnikov's rule state regarding electrophilic addition to alkenes?
The hydrogen of an attacking electrophile will add to the alkene carbon with the greater number of hydrogen substituents.
What are proteins made of?
Amino acids linked through peptide bonds.
What is the primary source of energy in the body?
Carbohydrates, which are converted to glucose.
What is the main function of nucleic acids?
Involved in heredity, protein synthesis, and as energy carriers.
How can nutrients be classified?
According to their functions: provision of energy, body-building materials, and regulation of body processes.
What are derived lipids?
Lipids obtained by the hydrolysis of simple or compound lipids, such as fatty acids and sterols.
How does heat affect proteins?
Gentle heating causes reversible denaturation, while vigorous heating causes irreversible denaturation.
What makes amines moderately polar compounds?
The presence of the C–N bond.
What is starch and its significance?
A polysaccharide made up of many glucose units, important as a nutrient for humans.
What is the formula for ethanoic acid?
CH₃COOH
What is the primary structure of a protein?
The kind and order of amino acids in the protein.
What is the process of forming esters from carboxylic acids called?
Esterification.
What type of reactions can alkyl halides undergo?
Nucleophilic substitution or elimination reactions.
What is the sugar component of DNA?
Deoxyribose.
What is the formula for ethanenitrile?
CH₃CN
What is the suffix for aldehydes?
-al
What is the prefix for nitro compounds?
nitro-
What is the suffix for ethers?
-yl ether
What is the suffix for alkenes?
-ene
What is the prefix for halides?
fluoro-, chloro-, bromo-, iodo-
What is the suffix for radicals?
yl-