n. trisomy
(a) carbohydrate that makes up the bulk of plant matter
(b) a combination of reacting particles (atoms; molecules or ions) when they are at the top of the activation energy barrier between the products and the reactants
(c) the sex of an organism; male or female
(d) a condition in which a chromosome is present in a triplet rather than a pair
n. double helix
(a) lymphoid tissue at the back of the throat
(b) the double-stranded coiled structure of a DNA molecule
(c) spherical structure inside the cell nucleus which contains RNA in order to make ribosomes
(d) the process by which blood cells are made
n. enantiomer
(a) inactive state of hibernation
(b) either one of a pair of chemical components whose molecular structures have a mirror-image relationship to each other
(c) air tube connecting trachea ('windpipe') and lungs
(d) process in which proteins lose their tertiary structure leading to the elimination or diminishing of their original features
n. nitrogen balance
(a) change in the directions and intensities of a group of waves after passing by a barrier
(b) phosphoric acid in the salt or ester form
(c) ability to resist infection, because of its white blood cells and antibodies
(d) the relationship between the amount of nitrogen taken in and excreted by the body
n. thorax
(a) shortening
(b) area that contains the heart and lungs; the chest
(c) the amount of a substance within a second substance, usually in a solution
(d) major organ of the central nervous system, controlling all bodily activities |
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n. olefin
(a) bundle of nerve fibers
(b) unsaturated open chain hydrocarbons possessing one or more double bonds
(c) molecule differing only in the spatial arrangement around a single carbon atom
(d) fatty acid vital for growth and repair that needs to be found from the diet
n. surfactant
(a) an unproven idea or generalization
(b) the overall conformation of each polypeptide chain making up the protein
(c) a group of cells with the same shape and function
(d) lipoprotein maintaining the stability of lung tissue
n. acetominophen
(a) epithelial lining of viscera and body cavities that produces mucous
(b) the movement of semen out of the penis by contractile waves which occur at orgasm
(c) a painkiller
(d) a specific carrier transports molecules through the cell membrane
n. leukemia
(a) specialized structure which performs particular functions within a cell
(b) compound containing glycerol and fatty acids which is important as a fuel and for energy storage
(c) characteristic that is controlled by a gene carried on the X chromosome
(d) cancer of the white blood cells
n. labor
(a) sugar that contains five carbons
(b) the part of the body that sits on top of the neck
(c) the process of childbirth
(d) this is a layer of Schwann cells which covers the nerve axon |
