Explain why organisms need enzymes to survive.

1 answer:

7 0

Enzymes are catalysts in chemical reactions. What this means is that they speed up chemical reactions, which in turn means that all the actions necessary for our metabolisms occur as a result of catalysts. This goes from fighting illnesses and diseases to dissolving food. We couldn't live without them because our metabolisms would be so slow that we would die as nothing could work.

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My doctor also explained that birth control pills "trick the body into thinking it is pregnant." she explained that women do not

Rudiy27

When you are pregnant, you do not ovulate because you have already fertilized an egg and it is embedded into the uterus where it is growing into a baby. The body knows this, so it does not shed the uterine lining. The shedding of this lining is triggered by hormones which change when the body is pregnant. During pregnancy, a large amount of progesterone is initially produced which helps to prevent the lining from shedding. If you are not pregnant, your progesterone level will begin to decline at the end of your cycle, triggering the shedding of the lining and the period. Birth control pills alter your hormones to mimic a pregnant state. This will prevent the body from releasing an egg and then shedding the uterine lining.

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3 years ago

What was the second organism to be found here on planet Earth? *

mafiozo [28]

What was the second organism to be found here on planet Earth?

Prokaryotes

The prokaryotes are considered to be the most oldest on earth. The first found organism on earth was bacteria and then many other Prokaryotes were found...~

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2 years ago

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LiRa [457]

Survival of the fittest. If one organism thrives better in an enviornment and the other organism struggles, the one that is more adapted will obviously play a part in helping the less adapted organism die out. Food is a major point along with other aspects

5 0

2 years ago

This variable could also be called the potential effect?

larisa [96]

False.

It can either be called Dependent or Independent variable.

Hope this is correct :)

Have a great day

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3 years ago

If they gave IVs of pure water in the emergency room to people who are dehydrated, what would happen?

Zigmanuir [339]

Answer:

The correct answer is: B. blood cells would be in a hypotonic solution, so water would rush into the cell causing it to expand and eventually burst.

Explanation:

Cells have a certain solute concentration that produces an osmotic pressure of aproximately 300 mOsm. For that reason, IVs solutions must have a solute concentration which equals the cell osmotic pressure. That is usually acomplished by using an aqueous solution of NaCl 0.9% w/v or 5% w/v Glucose.

If an IV of pure water is administrated to a person, the blood cells will be in a hypotonic solution. That is, with a concentration lesser than the concentration inside the cells. Due to the difference in concentration, a net flow of water will be produced from the exterior to the cell interior. As the volume of the cell is increased, the cell membrane is damaged and eventually the cell will collapse.

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3 years ago