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Biology Quarter 1 Exam
Review for quarter one exam
38
Biology
11th Grade
10/16/2012

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Term
Proteins
Definition
organic compound made of amino acids joined by peptide bonds
Term
Protein structure
Definition
primary, secondary, tertiary, quatrenary
Term
primary
Definition
a simple chain of amino acids
Term
secondary
Definition
helix or pleated sheet made of Hydrogen bonds
Term
tertiary
Definition
intertwined peptide chain
Term
quatrenary
Definition
protein consisting of one or more amino acid chain
Term
amino acids
Definition
the individual sub-unit of which proteins are made
Term
peptide bond
Definition
the covalent bond between the amino groups nitrogen of one amino acid and the carboxyl groups carbon of a second amino acid joining the two amino acids together in a peptide or protein
Term
Proteins provide
Definition
transport of substances, enzymes, hormones
Term
Carbohydrates
Definition
an organic compound composed of carbon hydrogen and oxygen in a ratio of 1:2
Term
Carbohydrates provide
Definition
energy storage, structural support
Term
monosaccharides
Definition
Glucose, Fructose, Ribose, Diobrose (one sugar)
Term
disaccharides
Definition
Two monosaccharides that combine in condensation reactions to form double sugar (two sugars)
sucrose, lactose
Term
polysaccharide
Definition
A complex molecule made of three or more monosaccharides (many sugars) starch, glycogen, celluose
Term
starch
Definition
In plants, monosaccharides joined together into polysaccharides. Appear as starch granules
Term
celluose
Definition
an important structural polysaccharide which makes up most of cell wall in plants
Term
glycogen
Definition
in animals, monosaccharides joined together into polysaccharides found in muscles and liver cells
Term
lipids
Definition
organic molecules made mostly of carbon and hydrogen that make up oils, fats and waxes
Term
lipids provide
Definition
store energy, provide structural support, provide waterproof coverings
Term
phospholipids
Definition
a lipid consisting of glycerol bonded to two fatty acids and one phosphate group
Term
Hydrophilic Head
Definition
phosphate group, polar, water soluble
Term
Hydrophobic Tails
Definition
two fatty acids, non polar, water insoluable
Term
steroids
Definition
a group of lipids characterized by a C-skeleton with four fused rings and various functional groups protected from them. Cholesterol, Hormones
Term
cholesterol
Definition
a lipid found in the cell membranes and body tissues. A vital component of the cell membrane in animals
Term
hormones
Definition
a chemical messenger that carries messages from glands to cells. Their function is to achieve homeostasis
Term
triglycerides
Definition
lipids composed of three fatty acids, tails bond to a single glycerol molecule
Term
saturated fats
Definition
fatty acids with as many hydrogen atoms as possible. Only shar a single bond between carbon atoms
Term
unsaturated fats
Definition
fatty acids with fewer than the maximum number of hydrogen atoms. Share double bonds, not fully saturated with hydrogen. Found in nuts, seeds and oil
Term
nucleic acids
Definition
organic molecules composed of nucleotide sub-units. Store and transmit genetic information, made of monomers.
Term
nucleotides
Definition
Made of phosphate group, sugar, base
Term
DNA
Definition
Deoxybase nucleotides bond to form four bases. Adenine, thyamine, guanine, cytosine
Term
RNA
Definition
Ribose nucleotides form four types of bases. Adenine, uracil, guanine, cytosine
Term
polymer
Definition
many parts, molecules made from repeating units of identical compounds(monomers)
Term
monomer
Definition
one part, a small organic molecule
Term
dehydration synthesis
Definition
to make, glucose+fructose=sucrose, monomer+monomer=polymer
Term
endergonic
Definition
to store energy
Term
Science
Definition
Systematic knowledge of the physical, living or material world gained through observation and experimentation
Term
Biology
Definition
The study and science of life
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