MICR 200 - quiz 1

ch 1,2,4

how many double bonds can an individual atom of carbon form

2

a nitrogen atom forms a single bond with 2 different hydrogen atoms forms this functional group

amino group

oxygen is ____ electronegative compared to carbon

more

a long chain of carbons bound to hydrogen would yield a ___ molecule and a molecule with hydrogens bound to oxygen would yield a ___ molecule

polar; polar

adding an acid to solution would cause the pH to ___ and adding a base to soluation would cause the pH to ___

decrease; increase

alpha helix and pleated beta sheets form ___ structure of a protein

secondary

nucleic acids contain

phosphate group, sugar, nitrogen base

lipids consist of ___ and 3 ___

glycerol; fatty acids

all chemical reactions only run in single direction

false

what functional group makes an organic acid and acid

carboxyl group

what type of reaction is shown: lactose + H20 -> galactose + glucose

hydrolysis, catabolic

what functional group is shown

amino group

what is the name of the molecule that is shown below

phospholipid

bacteria are isotonic to solution C. Bacteria were transferred from solution D (o.9% salt concentration). Solution D is a ___ solution and the bacterial cell will ___

hypotonic; gain water

as an acid mixes in water

the number of hydrogen ions will increase

DNA is composed of monomers called

nucleotides

which of the following structures are used by eukaryotes for mobility

fimbriae

if an atom has a charge of -2 which of the following must be true

it gained 2 electrons

which of the following is an example of anabolism

nucleotides to DNA

in the name micrococcus luteus, luteus is the

species

which term is not used to describe bacterial morphologies

streptobacilli, sarcinae

the difference between eukaryotic and prokaryotic cells is that prokaryotic cells ___ eukaryotic cells

have a nucleoid region, which is lacking in

which of the following has mycolic acid in their cell walls

mycobacterium, nocardia

peptide bonds

are used to form fatty acids

peptide bonds

link amino acids

which of the following does not have a cell membrane

viruses

a major type of lipid foundin the cell membranes is

phospholipids

an atom whose atomic number is 5 has ___ electrons in its outermost energy level

3