1answer.
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
Gennadij [26K]
3 years ago
14

Which structure of the heart is responsible for prevening blood from flowing in tthe wrong direction?

Biology
1 answer:
Sloan [31]3 years ago
8 0
The valves are responsible for preventing blood from flowing in the wrong direction, they are present in the veins, and the arteries don't need them because the aorta (biggest artery) pumps or in other words pushes it with such a force that no other force can change its direction, in the veins there is no structure present for pumping them as a result we have got valves so that they go in one direction...... the meaning of the word valve is to allow in one direction
You might be interested in
How would over expression of protein phosphatase 1 affect the induction of cAMP-inducible genes in response to hormone stimulati
finlep [7]

Answer:

The protein phosphatase-1 dephosphorylates the residues of serine, which are phosphorylated by the protein kinase A. The cyclic-AMP inducible genes are stimulated by CREB that is phosphorylated by protein kinase A. Thus, overexpression of protein phosphatase 1 would prevent their induction.  

Although, protein phosphatase 1 would not influence the function of cAMP-gated ligand channels, as these channels are opened directly by binding of cAMP rather than by protein phosphorylation.  

5 0
3 years ago
In an experiment, the independent variable is the variable you change on purpose. The dependent variable is what you measure. Tr
Strike441 [17]

Answer:

True

Explanation:

An independent variable is the variable you think is the cause,while a dependent variable is the effect. you manipulate the independent variable and measure the outcome in the dependent variable.

3 0
3 years ago
Read 2 more answers
FOR CONSTRUCTED RESPONSE QUESTION!
Vlad1618 [11]

The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions). Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH.

4 0
3 years ago
The purpose of the preamble of the constitution is to?
kvasek [131]
It is known as the opening statement
8 0
3 years ago
Read 2 more answers
HELP!!! 25 POINTS! if the answer is right, ill make u brainliest
Varvara68 [4.7K]
The answer is B) Muscle fiber aka Fascicles this is what there called in the definition. 

6 0
3 years ago
Read 2 more answers
Other questions:
  • Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the
    9·1 answer
  • Microscopic thin-walled tubes carrying blood are called
    6·1 answer
  • What do you think accounts for these differences? How might some of these differences be
    7·1 answer
  • People eyes can be blue green
    8·2 answers
  • Directional selection only occurs in response to naturally occurring events.
    15·2 answers
  • How is it possible for mad made things to move?
    12·1 answer
  • Place your cursor over the boxes on the different chromosome numbers below and match the chromosome number to the description of
    13·1 answer
  • Coursebook questions - page 44
    9·1 answer
  • Help me please <br> Earth and space
    6·2 answers
  • Which soil horizon is primarily responsible for this soil's fertility?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!