Hands on Learning topics

Question 1

alpha glucose

Answer 1

hydroxyls on the same side

Question 2

beta glucose

Answer 2

hydroxyls on opposite sides

Question 3

bond formed by dehydration synthesis that unites two glucose monomers?

Answer 3

glycosidic linkage 1,4 (at 1 and 4 carbon)

Question 4

non polar R-Groups

Answer 4

Valine, phenylanine

Question 5

sequence of tripeptide

Answer 5

(N-terminus) cysteine : Threonine : Alanine (C-terminus)

Question 6

cysteine is a weak __ amino acid due to the __ group on the side chain

Answer 6

polar; sulfhydryl

Question 7

Threonine is a ___ amino acid due to the ___ group on the side chain

Answer 7

polar; hydroxyl

Question 8

Alanine is a ____ amino acid due to the ____ group on the side chain

Answer 8

non polar; methyl

Question 9

What happens why you hydrolyze valine from a polypeptide?

Answer 9

a water molecule is added to the reaction

Question 10

fatty acids

Answer 10

consist of a long chain of hydrocarbons with a carboxyl group at the end

Question 11

trans and cis isomers have….

Answer 11

C=C; cis causes bending; trans remains straight

Question 12

dehydration synthesis

Answer 12

causes water molecules to be removed from the reaction

Question 13

phosphate group

Answer 13

consists of a phosphorus atom surrounded by oxygen and hydrogen

Question 14

ATP (adenosine triphosphate

Answer 14

a modified RNA nucleotide

Question 15

phosphoanhydride bond

Answer 15

forms between consecutive phosphate groups in ATP; when broken, creates a lot of energyy

Question 16

hydrolysis of ATP

Answer 16

ATP + H2O = ADP + P(i) = AMP +P(i) + energy

Question 17

In a DNA strand, to what number carbon does the nitrogenous bas attach?

Answer 17

1’ Carbon

Question 18

in a DNA strand, to what number carbon does the hydroxyl group attach to?

Answer 18

3’ carbon

Question 19

In a DNA strand, to what number carbon does the phosphate group connect to?

Answer 19

5’ carbon

Question 20

DNA strands will undergo complementary bonding such that a pyrimidine is always ____ bonded to purine

Answer 20

hydrogen

Question 21

what kind of bond is formed between purines and pyrimidines along the phosphate-sugar backbone of the DNA strands?

Answer 21

phosphodiester

Question 22

the atomic number equals the number of _____ and is found as the subscript to the left of the symbol for an element

Answer 22

protons

Question 23

the mass number equals the atomic number plus the number of ____ and is found as the superscript to the left of the symbol for an element

Answer 23

neutrons

Question 24

in a neutral atom, the number of protons equals the number of _____

Answer 24

electrons

Question 25

isotopes

Answer 25

atoms of an element that have the same atomic number but have differing mass numbers

Question 26

unstable isotopes

Answer 26

emit nuclear radiation as the parent isotope decays into the daughter isotope

Question 27

half-life

Answer 27

the time it takes for the proportion of the parent isotope to decrease by half

Question 28

The amount of remaining C-14 (half-life: 5700 years) found in a cave painting in France is about 3.125%. How many years ago did the artists make these drawing?

Answer 28

28,300 years ago