4. How do enzymes affect the speed of a chemical reaction?

Answers

Answer 1

Answer:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

Explanation:


Related Questions

Which of the following statements about cells is true?

Answers

all cells have dna.

Answer:

All cells have DNA. Hope that helps

Lipids may contain ____ and small amounts of phosphorus and nitrogen

Answers

Answer:

carbon,hydrogen and oxygen

Please help me order these from least to greatest???

Answers

Rock moves outward, A crack forms, Magma pushes upward, Magma hardens

what does this line of a poem mean

"Funny it seems, but by keeping it's dreams, it learned to breathe fresh air. Long live the rose that grew from concrete when no one else ever cared."

Answers

Proving nature's law is wrong it learned to walk with out having feet. Funny it seems, but by keeping it's dreams, it learned to breathe fresh air. Long live the rose that grew from concrete when no one else ever cared. Tupac Shakur.

Mutations are most often
a) beneficial
b) harmful.
c) neutral.
d) deadly .

Answers

The correct answer is C.

Explanation:

Mutations MAY have negative affects, usually and unfairly categorized as “bad” or “deadly” but sometimes mutations can control genes and have major positive affects.

Answer:

the answer is C

Explanation:

yuhhhh

The conversion of lactic acid back to pyruvic acid requires:
A. carbon dioxide
B. yeast
C. light
D. oxygen
HELP PLEASE

Answers

The answers b.yeast I believe

how do you abbreaviate adenosine triphosphate

Answers

Answer:

ATP

Explanation:

the abbreviated term for this is ATP

please help!!!!!!!!!!!!

Answers

Answer: A. Directional selection

Explanation: Good luck! :D

Please help soon! real answer not a guess. Thank you so much!

Answers

A!

I hope this answer helped! please rate 5 stars >:)

True or False: Industrialized areas have more
anthropogenic air pollution that rural areas

Answers

true, industrialized areas have more man-made factories and facilities which let off pollution

Where m and n are statements mVn is called the _____ of m and n .

Answers

it’s disjunction . .

Listed in the Item Bank are individual steps that need to be ordered. To find out more information about steps, some have more
details available when you click on them. Drag and drop the steps in the proper order by placing each in its corresponding open
rectangle. Be sure that the earliest step is placed next to the number 1.
Succession happens in predictable ways. Can you put the steps in order?
ITEM BANK: Move to Bottom
Grasses
Larger trees
Shrubs
Flowering plants
Small trees and shrubs
Soil formers
1
drag and drop answer here
N
drag and drop answethere
3
drag and drop ansvar here
4
6

Answers

Soil formers, grasses, flowering plants, shrubs, small trees and shrubs, then larger trees.

The correct order or the step is mentioned in below soil formers, grasses, flowering plants, shrubs, small trees and shrubs, then larger trees.

What impact on plants due to depletion of nitrates or nitrogen?

Nitrate plays very vital role in our ecosystem and such that due to presence of the nitrogen plants grow rapidly as well as it produces bigger size fruits and flowers. Plants absorb nitrates in water through their roots without nitrates, the amount of the chlorophyll in leaves reduces.

Nitrate has been a common inorganic ion found in plants that has required for proper growth and development. Many growers has been included the addition of the nitrates in their nutrient regiment to the stimulate plant growth. Plants has been acquire nitrate through the root intake from the soil and water around them.

Phosphorus has a limiting growth factor in the terrestrial ecosystems because the quantity of phosphorus in soil are generally small it has been often the limiting factor for plant growth.

Therefore, The correct order or the step is mentioned in below soil formers, grasses, flowering plants, shrubs, small trees and shrubs, then larger trees.

Learn more about plants on:

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are chemicals that are know to cause canser

Answers

Answer:

microwave

Explanation:

Answer:

microvave

Explanation:

1. The line "... form a more perfect
Union" can be seen as a reference
to what document?
O Bill of Rights
O Ten Commandments
0 Article of Confederation
O Declaration of Independence

Answers

The bill of right if am wrong I am so so sorry.

Answer:article of confederation

Explanation:

Because I’m smart

Why should we clean our hands with soap before eating

Answers

Answer:

Because our hands be dirty they have to be clean when you eat

Explanation:

Washing your hands before eating a meal is a simple and effective method of infection prevention.

When you eat without washing your hands, the bacteria and germs that are left on your fingers and palms can be transferred to the inside of your mouth. This can cause illnesses and infections.

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How is the age of the earth used as evidence of evolution?

Answers

Answer:

Explanation:

All radiometric evidence points to the age of the Earth as about 4.54 billion years old. The old age of the Earth is evidence for evolution, a change in the genetic makeup of a population over time.

Answer:

The age of the earth can be used as evidence of evolution because it withholds the past that we are capable of uncovering bit by bit. We excavate fossils buried in the ground which we use accordingly. The fossil record reveals that the deeper you go, the farther back in history you unearth. This is known as the Law of Superposition. With these fossils, we can compare and contrast the anatomy of closely related organisms and possibly uncover vestigial structures. All of which is evidence that evolution has taken place.

PLEASE HELP ASSIGNMENT DUE TODAY
Humans living in developed countries usually use LESS natural resources than those in non-developed countries?
True
False

Answers

False, have a nice day!

Nigel lives near a chemical plant that spews sulfur dioxide into the air. At first, Nigel could not stand the smell of the gas in the air. However, after some time, he no longer even notices the presence of the gas. What kind of tolerance has his body developed? a behavioral tolerance b. a physiological tolerance a genetic tolerance d. a physical tolerance​

Answers

Answer:  Genetic Tolerance

The answer is Genetic Tolerance because the definition of it is "Genetic resistance (or genetic tolerance) refers to the ability of certain organisms to endure environmental conditions that are extremely stressful or lethal to non-adapted individuals of the same species ."

Answer:

B.) A physiological tolerance

Explanation:

How much weight can a male American Pekin duck carry?

Answers

Answer:

up to 13 pounds.

Explanation:

Their fine meat quality and egg-laying ability has made them the first choice of American duck growers. They are the easiest domestic ducks to process and prepare for meat production. Male Pekins carry a Fall weight of up to 13 pounds, and the females weigh about 7 pounds.

2. Which group of animals is found in a water habitat?
A dolphin, carabao, cat
C. cat horse, goat, monkey
B. fish, squid, crab
D. tadpole, grasshopper, hawk​

Answers

B) fish, squid, crab

Answer:

B) . fish, squid, crab

Explanation:

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One difference between cell division in plant cells and in animal cells is that plant cells have...
A. centrioles.
B. centromeres.
C. a cell plate.
D. chromatin.

Answers

Answer

A. centrioles

higher plant cells do not have centrioles in cell division.

1. What enters a plant when stomata open? *
O carbon dioxide
O oxygen
O nutrients
O sugar
2. Loss of water vapor through stomata is called *

Answers

Answer:

The answer for 1 . Carbon dioxide

The answer for 2. Transpiration

Explanation:

what is the relationship between the cell membrane and cystic fibrosis?

Answers

Answer:

The CFTR gene provides instructions for making a protein called the cystic fibrosis transmembrane conductance regulator. This protein functions as a channel across the membrane of cells that produce mucus, sweat, saliva, tears, and digestive enzymes.

HOPE THIS HELPS

Which process is necessary for cell division? *

Answers

Answer:

a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.

Explanation:

Mitosis is necessary as it enables the cell to split. Another example of cell division is meiosis which involves gametes.

I hope this helps.

A full moon appears white to us on earth because

Answers

Answer:   when the moon's light (from the sun) is being shone through the atmosphere the blue hues are scattered but the red ones are not.

Explanation:

!!!!!!!!!!!!PLEASE HELP ME PLEASE PLSEASE!!!!!!!!!!

Answers

Answer:

look at the directions and muitply by 2

How does the method of reproduction differ in each of the three species?

Answers

Answer:

What are the three species?

Answer:

Hydra carry out budding (reproduce asexually)

Plants carry out asexual reproduction

Animals carry out sexual reproduction

Explanation:

when do you think friction can be helpful ? try to think of a situation friction is necessary

Answers

Answer:

friction stops tyres skidding in the road and prevents shoes slipping on the pavement .it grips the ground a prevent sliding

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The diagram below shows the sequence of events and processes which resulted in the origin of life.


Picture shows a flow chart with a rectangle labeled non-living matter at the top, an oval labeled A below it, and a rectangle labeled appearance of bacteria at the bottom.


Which of these processes best fits the oval labeled A?


chemical evolution

biological evolution

atmospheric transformation

geological transformation

Answers

Biological evolution beat fits the oval Labeled A

Answer:

chemical evolution

Explanation:

This type of evolution is what we believe started the origin of life. Chemical evolution is when something changes to have different abilities (which in this case would be true).

Have a great day everybody!

a is a part of the shore that sticks out into the beach​

Answers

Answer:

headland

Explanation:

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