Chapter 5 Flashcards
What are the 4 classes of large molecules for all living things?
Carbs, proteins, nucleic acid, lipids
Giant molecule formed by the joining of smaller molecules
Macromolecules
Long molecule consisting of smaller molecules
Polymer
Building blocks of polymers
Monomer
Monomers are connected in what type of reaction?
Dehydration synthesis
2 molecules become covalently bonded together with the removal of a water molecule
Dehydration reaction
Bond between 2 monomers is broken by an addition of a water molecule
Hydrolysis
Polymers are converted to monomers in what type of reaction?
Hydrolysis
What are the monomers for all carbohydrates?
Monosaccharides
Lipids are linked together by what bond?
Ester bonds
Carbohydrates are linked together by what bond?
Glycosidic linkages
Carbonyl group within a carbon skeleton
Ketone
Carbonyl group at the end of a carbon skeleton
Aldehyde
What makes maltose?
Glucose + glucose
What makes sucrose?
Glucose + fructose
What makes lactose?
Glucose + galactose
Covalent bond formed between 2 monosaccharides by a dehydration reaction
Glycosidic linkage
What are examples of storage polysaccharides?
starch, glycogen
What are examples of structural polysaccharides?
Cellulose, chitin
Storage polysaccharaide produced by vertebrates that is stored in the liver
Glycogen
What makes up a lipid?
3 fatty acids and glycerol
Has all hydrogen bonds in a lipid
Saturated
Name 2 saturated fats
Oil and plant fat
Name an unsaturated fat
Butter
Has a double bond in a lipid
Unsaturated
What is the function of fat?
Energy storage, cushions vital organs, body insulation
Unsaturated fat formed artificially during the hydrogenation of oils
Trans fat
Response of cell to chemical stimuli
Receptor proteins
Supports (ex: keratin)
Structural proteins
What are other examples of steroids?
Cholesterol, vertebrate sex hormone
Selective acceleration of chemical reactions
Enzymatic protein
Storage of amino acids
Storage protein
Coordination of activities
Hormonal protein
Movement
Contractile and motor protein
Protects against diseases
Defensive protein
Transport of substances
Transport protein
Covalent bond between the carboxyl group on one amino acid and the amino group
Peptide bond
Polymer of amino acid subunits connected in a specific sequence; chain of many amino acids
Polypeptide
What are the 4 levels of protein structures?
Primary, secondary, tertiary, quaternary
Protein loses its shape due to the disruption of weak chemical bonds and interactions
Denature
Information storage (nucleic acid)
DNA
Protein synthesis
RNA
Energy transfer
ATP and ADP
Adenine and guanine
Purine
Cytosine and thymine
Pyrimidines
What are nucleic acids made of?
Phosphate group and nitrogenous base
What macromolecule always contain sulfur?
Nucleic acid
What macromolecule always contain nitrogen?
Protein
Organic molecule possessing both a carboxyl and an amino group; serves as the monomers of polypeptides
Amino Acid
Having both a hydrophilic region and a hydrophobic region
Amphipathic
A sugar (monosaccharide) or one of its dimers (dissacharides) or polymers (polysaccharides)
Carbohydrate
A double sugar, consisting of two monosaccharides joined by a glycosidic linkage formed by dehydration synthesis
Disaccharide
Carboxylic acide with a long carbon chain
Fatty acid
Method of metabolic control in which the end product of a metabolic pathway acts as a inhibitor of an enzyme within that enzyme
Feedback inhibition
Atom or group of atoms that has gained or lost one or more electrons
Ion
A series of chemical reactions that either builds a complex molecule (anabolic) or breaks down a complex molecule to simpler molecules (catabolic)
Metabolic pathway
Simplest carbohydrate, active alone or serving as a monomer for disaccharides and polysaccharides
Monosaccharide
Accumulation of an end product of a process slows the process
Negative feedback
Serves as a blueprint for proteins and for all cellular activities
Nucleic Acid
What makes up a nucleotide?
Nitrogenous base, phosphate group, ribose sugar
Covalent bond between the carboxyl group on one amino acid and the amino group of the other, formed by dehydration synthesis
Peptide bonds
An end product of a process speeds up that process
Positive feedback
Consists of one or more polypeptides folded and coiled into a specific 3D structure
Protein
Lipid consisting of 3 fatty acids linked to one glycerol molecule
Triglyceride
What are some examples of quaternary protein structures?
Collagen, hemoglobin
Protein that has a long fiber shape
Fibrous protein
Protein that has a spherical shape
Globular protein
What is an example of a fibrous protein?
Actin, collagen
What is an example of a globular protein?
Hemoglobin
Lipids with a carbon skeleton with four fused rings and a small ACYL tail
Steroid
What are the 5 nitrogenous bases?
Adenine, guanine, cytosine, thymine, uracil
What makes up a nucleoside?
Nitrogenous base and sugar