Tentamen (uitwerkingen)
AP Biology Exam Questions And Accurate Answers
- Vak
- Instelling
AP Biology Exam Questions And Accurate Answers ...
[Meer zien]Voorbeeld 2 van de 8 pagina's
Voorbeeld 2 van de 8 pagina's
In winkelwagen
In winkelwagen
gesponsord bericht van onze partner
Verkoper
Volgen
Easton
Ontvangen beoordelingen
Voorbeeld van de inhoud
AP Biology Exam Questions And AccurateAnswers 2024-2025
A genetic alteration in the gene coding for a specific single-polypeptide enzyme
substitutes an amino acid with a polar R group, serine, with the amino acid
phenylalanine that has a non-polar R group. When scientists test the catalysis of this
normal enzyme and the mutated enzyme, they observe that the mutated enzyme has
drastically lower activity compared to the normal enzyme. Which of the following is the
most likely explanation for how the amino acid substitution has resulted in decreased
catalytic activity by the mutated enzyme? A. The substitution decreased the mass of the
enzyme so that the mutated enzyme binds more weakly to the substrate than the normal
enzyme does.
B. The substitution altered the secondary and tertiary structure of the enzyme so that
the mutated enzyme folds into a different shape compared to the normal enzyme.
C. The substitution caused many copies of the mutated enzyme to aggregate together
and compete for subs - Answer B. The substitution changed the secondary and tertiary
structure of the enzyme so that the mutated enzyme folds into a different shape than the
normal enzyme does.
An average bag of fertilizer contains large quantities of nitrogen, phosphorus, and
potassium and only trace amounts of magnesium and calcium. Which of the following
most accurately reflects the fertilizer component to the molecule it will be incorporated
by the organisms in the area?
A. Nitrogen will be incorporated into nucleic acids
B. Phosphorus will be incorporated into amino acids
C. Potassium will be incorporated into lipids
D. Magnesium will be incorporated into carbohydrates -Answer A. Nitrogen will be
incorporated into nucleic acids
Amylase is an enzyme that converts carbohydrate polymers into monomers. Glycogen
synthase is one of the enzymes responsible for converting carbohydrate monomers into
polymers. Which of the following best describes the reactions of these enzymes?
A. Amylase acids in the removal of a water molecule to break covalent bonds whereas
glycogen synthase aids in the addition of a water molecule to form a covalent bonds.
, B. Amylase aids in the addition of a water molecule to break covalent bonds whereas
glycogen synthase aids in the removal of a water molecule to form covalent bonds.
C. Amylase catalyzes the addition of a water molecule to form covalent bonds whereas
glycogen synthase catalyzes
the removal of a water molecule to break covalent bonds
D. Amylase catalyzes the removal of a water molecule to form covalent bonds whereas
glycogen synthase catalyzes
the addition of a water molecule to break covalent bonds. - Answer B. Amylase
catalyzes the addition of a water molecule to break covalent bonds whereas glycogen
synthase catalyzes the removal of a water molecule to form covalent bonds.
A researcher measured the temperature at which two different samples of
double-stranded denature
(separate into single strands). Sample denatured at a much lower temperature
compared to sample.
Based on these data, the researcher claims that the in sample contains a higher
percentage of
guanine and cytosine than does the in sample.
Which of the following is the best evidence for the researcher's conclusion?
A. The bonds between guanine and cytosine are covalent bonds, which take more
energy to break than
do those between adenine and thymine.
B. Guanine-cytosine pairs denature at a higher temperature because they have more
hydrogen bonds between
them than adenine-thymine pairs do.
C.Adenine-thymine pairs require less energy to separate because adenine and thymine
are both singlering
bases.
D. Guanine-cytosine pairs require more energy to separate because one is a purine and
one is a pyrimidine. - Answer B. Guanine-cytosine pairs denature at a higher
temperature because they have more hydrogen bonds between
them than adenine-thymine pairs do.
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper Easton. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €11,76. Je zit daarna nergens aan vast.
Is Stuvia te vertrouwen?
4,6 sterren op Google & Trustpilot (+1000 reviews)
Afgelopen 30 dagen zijn er 60904 samenvattingen verkocht
Opgericht in 2010, al 14 jaar dé plek om samenvattingen te kopen