Bio 200 Prelab 1
The earliest step is: - answer Formation of amino-acid building blocks
The second step is: - answer Joining amino-acids into a polymer like beads on a string
(this order is the 'primary structure')
The third step is: - answer The first part of the protein folds due to side-chain and
backbone interactions
The fourth step is: - answer The final protein tertiary structure is completed with the
addition and folding of the last parts of the protein.
The last of these steps is: - answer Enzymatic function is possible due to the completed
tertiary structure creating an 'active site' region of the protein.
Some people cannot eat dairy products because they cannot break down the sugar in
milk products. What is that sugar? - answerLactose
Often, humans cannot break down milk sugar. Why? - answerThese people lack the
enzyme necessary to catalyze the breaking of lactose into smaller glucose and
galactose parts.
In what class of biological macromolecules is the enzyme \beta β -galactosidase? -
answerprotein
Pick the 4 following conditions/substances that are most likely to strongly alter activity of
the enzyme \beta β -galactosidase. You can assume that all other conditions are held
constant. - answerVery high salt concentration
Addition of a hydrophobic oil to the mixture
Extreme pH
Extreme heat
From this week's lab instructions, find all words/names that can be synonymous with \
beta β -galactosidase (either names of enzymes or brand names of products that
contain \beta β -galactosidase). - answerBeta-galactosidase
Lactaid(TM)
Lactase
The earliest step is: - answer Formation of amino-acid building blocks
The second step is: - answer Joining amino-acids into a polymer like beads on a string
(this order is the 'primary structure')
The third step is: - answer The first part of the protein folds due to side-chain and
backbone interactions
The fourth step is: - answer The final protein tertiary structure is completed with the
addition and folding of the last parts of the protein.
The last of these steps is: - answer Enzymatic function is possible due to the completed
tertiary structure creating an 'active site' region of the protein.
Some people cannot eat dairy products because they cannot break down the sugar in
milk products. What is that sugar? - answerLactose
Often, humans cannot break down milk sugar. Why? - answerThese people lack the
enzyme necessary to catalyze the breaking of lactose into smaller glucose and
galactose parts.
In what class of biological macromolecules is the enzyme \beta β -galactosidase? -
answerprotein
Pick the 4 following conditions/substances that are most likely to strongly alter activity of
the enzyme \beta β -galactosidase. You can assume that all other conditions are held
constant. - answerVery high salt concentration
Addition of a hydrophobic oil to the mixture
Extreme pH
Extreme heat
From this week's lab instructions, find all words/names that can be synonymous with \
beta β -galactosidase (either names of enzymes or brand names of products that
contain \beta β -galactosidase). - answerBeta-galactosidase
Lactaid(TM)
Lactase
