All categories

3 years ago

Which is the best definition of activation energy?

2 answers:

5 0

The correct answer is Energy required to break the bonds of reactant molecules (to start a reaction) is the activation energy. It is the minimum amount of energy necessary for a reaction and it was defined as such as far back as the 19th century.

maksim [4K]3 years ago

4 0

Answer:

The energy required to form or break the bonds of reactant molecules, or C in ed2020

Explanation:

This is the exact answer in edgenuity so you aren't confused with a big explanation.

Hope this helps

You might be interested in

What term is used to describe bacterial cells that can naturally take up dna from their environment?

Maru [420]

<h2>The correct answer is: Competent cells</h2>

Explanation:

Bacterial cells have the capability of incorporating foreign naked DNA or deoxyribonucleic acid fragments from the environment or the exterior of the cell to the interior of the cell. This process is known as Transformation.
The bacterial cells which are able to undergo transformation are called Competent bacterial cells.
Some of the bacterial cells are naturally competent like Bacillus subtilis, Streptocossus pneumoniae while others like Escherishia coli need to be chemically treated to make them artificially competent.
In natural competence, the foreign DNA from the cell exterior is incorporated into the cell interior through specific protein complexes present in the plasma membrane of the bacterial cells.
In artificial competence, the negative charge on foreign DNA is masked by positively charged calcium ions (so that it is not repelled by the negative charge of the lipid bilayer of the bacterial cell plasma membrane) and then small pores are created in the lipid bilayer of the plasma membrane of the bacterial cells by giving a heat shock to the cells. This results in the uptake of the DNA by the bacterial cells.

3 0

3 years ago

Which of the following is maintained by the systems of the body?

Bogdan [553]

I believe the correct answer is homeostasis.

6 0

3 years ago

Read 2 more answers

!!HELP PLEASE!!

Bogdan [553]

The whale's flipper and tail flukes and fish fins are analogous structure as they have different structural formation but they perform the same function.

Flipper and tails are locomotory organs in the whale and helps the whale in propelling similarly fins in the fish assist the fish in swimming. Both the strcutures have evolved differently and are made of different materials.

4 0

3 years ago

Translation ends when

Y_Kistochka [10]

Translation

Remember that transcription happens in the nucleus as it changes from DNA to mRNA. In translation,
the mRNA first has to leave the nucleus and go into the cytoplasm of the cell. The process of translation actually occurs in the cell’s ribosomes.

The process of translation uses the genetic code on the mRNA strand to direct the construction (making) of a protein molecule. 
1. A ribosome attaches to an mRNA molecule in the cytoplasm.
2. As each codon passes through the ribosome, tRNA molecules bring the matching amino acids into the ribosome. Each tRNA has a set of 3 unpaired nitrogenous bases called an anticodon which matches up with the codon coming through the ribosome. So one end of a tRNA has an anticodon and the other end carries the amino acid which is how the code is translated.
3. The ribosome and the rRNA molecules it contains attach the amino acids together as they are being translated. The protein chain will keep growing until the ribosome reaches the stop codon on the mRNA. At that point, translation is done and the ribosome lets go.

Hope this helps!!!

6 0

3 years ago

Macy observes the lake near a park is covered in green slime. Over a few days she sees that the fish in the lake have started dy

horsena [70]

An algal bloom has drained the lake of oxygen.

Explanation:

The possible cause of the fish death in the lake near the park is that an algal bloom has drained the lake of oxygen.

The green slime on top of the lake are the growing algae.

This condition is caused by eutrophication.
It occurs when nutrients are enriched in a water body causing the growth of algae.
Algae bloom causes the depletion of oxygen levels in the ocean.
They block off plants from producing oxygen and enriching water with it.
Fishes need oxygen for their life actions.

learn more:

Algae brainly.com/question/1739812

#learnwithBrainly

3 0

3 years ago