answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetllana [295]
2 years ago
11

Caffeine is an inhibitor of phosphodiesterase. Therefore, the cells of a person who has recently consumed coffee would have incr

eased levels of _____.
A) phosphorylated proteins
B) cAMP
C) adenylyl cyclase
D) activated G proteins
Biology
1 answer:
adell [148]2 years ago
7 0

Answer:

B) cAMP

Explanation:

Phosphodiesterase is an enzyme that breaks a phosphodiester bond, for example in molecules such as cAMP and cGMP. So, phosphodiestarases are  are regulators of signal transduction: regulate the duration of signaling pathway.

Caffeine is  central-nervous-system stimulant and the mechanisms of its action usually are: mobilization of intracellular calcium or inhibition of specific phosphodiesterases.

You might be interested in
The enzyme telomerase is part protein and part RNA. What would be the most likely effect of a large deletion in the gene that en
Artist 52 [7]

Answer: option A, B and D

Explanation:

The telomeres found at the terminal ends of eukaryotic chromosomes are long repetitive sequences that protects the DNA from being identify as a damage molecule to encourage fusion with other chromosomes. Since replication does not extend down to these 3' ends, the cell recruits the telomerase enzyme which is a ribonucleoprotein that helps to add telomeric repeats using its own RNA component as template to extend this end. Thus if mutation like a large deletion occurs in the gene encoding for this enzyme, the telomerase would not be able to associate correctly with the telomere, the catalytic center also encoding for its RNA polymerase would be altered and the enzymes will not be able to synthesize new telomeric repeats sequences

7 0
1 year ago
One summer you begin noticing ants in your kitchen. It starts off as just a few here and there, but pretty soon you begin notici
NemiM [27]

Answer:

Sympatric speciation.

Explanation:

Sympatric speciation occurs between Crematogaster ashmeadi and Linepithema humile ants because they live on the same geographical location. Sympatric speciation is a type of speciation in which ancestral population evolve into separate species without separation of geography. Hybrid sterility is the postzygotic isolating mechanism that decreases the fitness of the hybrid individuals and helps in controlling the population of an organisms..

4 0
1 year ago
Benjamina started her walk from the front door of her ground floor apartment. She walked 6 meters to the corner of the building
Alona [7]
Benjamina has walked two legs of a right triangle, so you can connect her two movements with a line if you were sketching the situation.. The displacement is the objects overall change in position in relation to its origin, so in your case, Benjamina's apartment. While the total distance adds up regardless of her position. 

So, the total distance Benjamina walked is 10m + 6m = 16m 
Her displacement can be found by your best friends, the Pythagorean Theorem: 10m ^2 + 6m ^2 = delta x^2 (or displacement squared).. giving you a displacement of 11.66, or 12 m

The difference between the distance she walked and her displacement is 4 meters. 


4 0
2 years ago
Read 2 more answers
How does the frogs vestigial thumb help survival?
Leviafan [203]

Frogs have their way of avoiding the predators like camouflage, squirting the poisonous liquid out of their system and through their vestigial thumbs. This organ helps them by avoiding predation by stealth which makes them quiet and silent in moving so that predators won't notice them readily. 
6 0
1 year ago
A pentose sugar is the core of all ________.
Bess [88]

Answer:

ribose and/OR deoxyribose

Explanation:

im not sure though, it might be wrong.

8 0
1 year ago
Other questions:
  • What is a disacharride?
    5·1 answer
  • Comparative embryology definition
    8·1 answer
  • What was Carolus Linnaeus' classification system of organisms based on?
    7·1 answer
  • A benefit of monoculture farming practices is what?
    15·1 answer
  • As natural selection acts on a trait in a population, how will the amount of variation associated with that trait in the populat
    5·1 answer
  • What is the heroic part of the Philosophical Breakfast Club’s story? What is the flip side of this story? Explain the details of
    8·1 answer
  • Which of these has a warming effect on Earth?
    14·2 answers
  • Hypothesize how the properties of water protect the aquatic organisms living in a temperate-
    12·1 answer
  • Complete 9 additional base pairs. Remember there is no thymine in RNA
    13·1 answer
  • Students were divided into two groups to watch a set of comedians. Group A watched the comedians as a large group and then rated
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!