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Alenkasestr [34]
3 years ago
5

The amount of energy needed fo a reaction to take place is the activation energy. En zymes can lower the activation energy of a

chemical reaction, which of the fallowing describes a way that process could happen?
Biology
1 answer:
inysia [295]3 years ago
8 0

Enzymes lower the activation energy by forming a complex with substrate (enzyme-substrate complex). There are a few mechanisms of enzymes activity:

• Enzymes can change the charge distribution of the molecule

• Enzymes can change the substrate bonds

• Enzymes can reduce the reaction entropy.

All of the mechanisms tend to bring the molecule (reactant) to unstable state called the transition state (high-energy state).


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Flu vaccine reccomandations
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Answer:

Special Consideration Regarding Egg Allergy

People with egg allergies can receive any licensed, recommended age-appropriate influenza vaccine (IIV4, RIV4, or LAIV4) that is otherwise appropriate. People who have a history of severe egg allergy (those who have had any symptom other than hives after exposure to egg) should be vaccinated in a medical setting, supervised by a health care provider who is able to recognize and manage severe allergic reactions. Two completely egg-free (ovalbumin-free) flu vaccine options are available: quadrivalent recombinant vaccine and quadrivalent cell-based vaccine.

Get vaccinated before flu season starts

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It takes about two weeks after vaccination for antibodies that protect against flu to develop in the body.

September and October are generally good times to be vaccinated against flu. Ideally, everyone should be vaccinated by the end of October. Additional considerations concerning the timing of vaccination for certain groups include:

Adults, especially those 65 years and older, should generally not get vaccinated early (in July or August) because protection may decrease over time, but early vaccination can be considered for any person who is unable to return at a later time to be vaccinated.

Children can get vaccinated as soon as vaccine becomes available, even if this is in July or August. Some children need two doses of flu vaccine. For those children it is recommended to get the first dose as soon as vaccine is available, because the second dose needs to given at least 4 weeks after the first.

Early vaccination can also be considered for people who are in the third trimester of pregnancy, because this can help protect their infants during the first months of life (when they are too young to be vaccinated).

Explanation:

6 0
3 years ago
Runoff from a mine site flows into a lake and makes the water acidic. This would
larisa86 [58]
B is not right
c or a,
a is not right
c is correct because they need each other to live
hope that helped :)
8 0
3 years ago
Read 2 more answers
A total of _____ amino acids compose the majority of protein in living things and nine are _____ to human
Evgen [1.6K]

A total of <u>20</u> amino acids compose the majority of protein in living things and nine are <u>essential</u> to human.

  • All living organisms, from bacteria to people, depend on amino acids for survival.
  • The same 20 types of amino acids are present in all living things.
  • Only 21 amino acids are required by the human body to create all the proteins required for growth and function.
  • Your body can create thousands of different types of proteins with only the same 21 amino acids because they can be ordered in a wide variety of ways.
  • The body is unable to produce essential amino acids. They must therefore originate from food.
  • Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine are the nine essential amino acids.

learn more about amino acids here: brainly.com/question/1201532

#SPJ4

8 0
2 years ago
What biome receives the least rainfall
Ulleksa [173]

Answer:

deserts

Desert biomes are the driest of all the biomes. In fact, the most important characteristic of a desert is that it receives very little rainfall. Most deserts receive less than 300 mm a year compared to rainforests, which receive over 2,000 mm.

Explanation:

8 0
3 years ago
What happens to the energy that is stored in cells? Check all that apply.
Julli [10]

Answer:

A, D & E

Explanation:   All ATPs are not spent at the same time, and futhermore, they are constantly replaced by the continuous process of cellular respiration that captures the chemical energy in the glucose molecules and stores them in ATP. During the release of this energy to power the biochemical reactions, much of it is lost as heat energy and this is why living organisms are always warm.

HOPE THIS HELPS YOU BEST FRIEND

8 0
4 years ago
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