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2 years ago

Why do enzymes act upon energy of activation

2 answers:

8 0

In the presence of an enzyme, the Activation energy is lowered. thus the reactions reaches the activation energy and the reaction is initiated faster and therefore completes faster than the reactions without enzymes. Enzymes lower activation energy, which allows a reaction to occur at a faster rate.

Hope this helps you!!!

Please mark this as the brainliest one!!!

BigorU [14]2 years ago

5 0

Enzymes lower the activation energy of a reaction by binding one of the reactants, called a substrate, and holding it in a way that lowers the activation energy. ... Likewise, an enzyme holds its substrate in such a way that the reaction is much more likely to occur.

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How much 3M NaOH (MW=40) can be made from 10.0mL of a 10M solution?

vaieri [72.5K]

Explanation:

The given data is as follows.

$M_{1}$ = 3 M, $V_{1}$ = ?

$M_{2}$ = 10 M, $V_{2}$ = 10.0 ml

Therefore, calculate the volume of given solution as follows.

$M_{1} \times V_{1}$ = $M_{2} \times V_{2}$

Now, putting the given values into the above formula as follows.

$M_{1} \times V_{1}$ = $M_{2} \times V_{2}$

$3 M \times V_{1}$ = $10 M \times 10.0 ml$

$V_{1}$ = 33.3 ml

or, = 0.033 L (as 1 ml = 0.001 L)

Since, molarity of NaOH is given as 3 M and its volume is calculated as 33.3 ml.

Molarity = $\frac{\text{mass of solute}}{\text{molar mass of solute}} \times \frac{1}{\text{volume in L}}$

3 M = $\frac{mass}{40 g/mol \times 0.033 L}$

mass = 3.96 g

Therefore, we can conclude that mass of NaOH is 3.96 g.

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2 years ago

During which stage of a cell's cycle do the replicated chromosomes thicken and become visible?

trasher [3.6K]

Answer:

Prophase

The replicated chromosomes thicken and become visible as separate chromosomes during prophase stage of mitosis. :)

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2 years ago

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What are wildfires? (With detail)

Anestetic [448]

Answer:

A wildfire is an unplanned fire that burns in a natural area such as a forest, grassland, or prairie. Wildfires are often caused by human activity or a natural phenomenon such as lightning, and they can happen at any time or anywhere. In 50% of wildfires recorded, it is not known how they started.

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2 years ago

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When comparing animal to plant cells, they are different in size, shape, and how they store energy. They have similarities, as w

fgiga [73]

Answer:

ribosome, cell membrane, nucleus

Explanation:

The organelles that perform similar functions in both plant and animal cells among the listed organelles would be the ribosome, the cell membrane, and the nucleus.

First of all, chloroplast and cell wall are limited to the plant cell only. Animal cells do not have these organelles.

The ribosome functions as the site of protein synthesis in both plant and animal cells. The cell membrane acts as a channel for the control of the movement of materials in and out of the cells and is found in both plant and animal cells. The nucleus is also present in both cells and serves as the control unit of the cell by housing the genetic materials and dictating how the cells will behave.

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2 years ago

Prokayotes only include organisms in the Archrea and __________________ domains. protozoa bacteria virus none of the above

UNO [17]

Answer: bacteria

Explanation:

Prokaryotes are living organisms with one cell (unicellular) with no nuclear envelope, and cell organelles lacking membranes. Examples of Prokaryotes include bacteria and cyanobacteria

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3 years ago