1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dusya [7]
3 years ago
5

Which statement about enzymes is true? A. They are large molecules that decrease the rate of reactions in the body. B. They are

large molecules that increase the rate of biologicallyimportant reactions. C. They slow the rate of chemical reactions. D. They are permanently changed in the course of a reaction.
Chemistry
2 answers:
zmey [24]3 years ago
6 0

Answer;

B. They are large molecules that increase the rate of biologically important reactions.

Explanation;

-Enzymes are biological molecules, that are protein in nature, that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.

-They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism. Some enzymes help break large molecules into smaller pieces that are more easily absorbed by the body. Other enzymes help bind two molecules together to produce a new molecule.


podryga [215]3 years ago
5 0
<h2>Answer:</h2>

The correct statement about enzyme is second (B) statement: They are large molecules that increase the rate of biologically important reactions.

<h3>Explanation:</h3>
  • Enzymes are biological catalysts which are protein in nature.
  • They lowers the activation energy of a reaction when catalyze a biological reaction.
  • So in a reaction, when there is low energy need due to the presence of enzymes, the substrate will easily and quickly reacts to form the products.
  • Hence increasing the rate of reaction which is the increase in products with respect to time.

You might be interested in
Some type of path is necessary to join both half-cells in order for electron flow to occur.
klemol [59]

The given statement, some type of path is necessary to join both half-cells in order for electron flow to occur, is true.

Explanation:

Flow of electrons is possible with the help of a conducting medium like metal wire.

A laboratory device which helps in completion of oxidation and reduction-half reactions of a galvanic or voltaic cell is known as salt bridge. Basically, this salt bridge helps in the flow of electrons from anode to cathode and vice-versa.

If salt bridge is not present in an electrochemical cell, the electron neutrality will not be maintained and hence, flow of electrons will not take place.

Thus, we can conclude that the statement some type of path is necessary to join both half-cells in order for electron flow to occur, is true.

4 0
2 years ago
Rate how successful you were at using Active Reading skills by responding to the following statement: As i read, i paid attentio
Aleksandr-060686 [28]

It is possible to rate your active reading skills either by using a number is a specific rate or by using a word that qualifies your performance.

<h3>What are active reading skills?</h3>

Active reading skills are a set of skills that help you read actively; this means skills to effectively read a text and understand it.

<h3>How to rate your reading skills?</h3>

In this case, you are asked to rate your ability to pay attention to your understanding, thoughts, and questions while reading. To do this you can:

Rate using numbers:

  1. Select a specific scale rating such as 1 to 5 or 1 10.
  2. Analyze honestly if you used this ability while reading the text.
  3. Give yourself a number. For example, if you apply this skill only sometimes while reading you can rate yourself 5 out of 10.

Rate using words:

  1. Select the types of words that you will use, the most common ones are frequency words such as always, sometimes, and never.
  2. Analyze honestly your performance.
  3. Find the word that best fits it.

Learn more about rate in: brainly.com/question/2278897

8 0
2 years ago
What is basic of matter that can’t be broken down
solong [7]

Answer:

Atoms

Explanation:

Adams can’t be broken down there the littlest piece of matter there is and they make up everything.

5 0
2 years ago
Read 2 more answers
A piece of silver releases 202.8 J of heat while cooling 65.0 °C. What is the mass of the sample? Silver has a specific heat of
KiRa [710]

Answer: 13 grams

Explanation:

The quantity of heat energy (Q) released from a heated substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since,

Q = 202.8 Joules

Mass of silver = ?

C = 0.240 J/g °C.

Φ = 65°C

Then, Q = MCΦ

202.8J = M x 0.240 J/g °C x 65°C

202.8J = M x 15.6 J/g

M = (202.8J / 15.6 J/g)

M = 13 g

Thus, the mass of silver is 13 grams

7 0
3 years ago
A gas mixture contains 0.800 mol of N2, 0.200 mol of H2, and 0.150 mol of CH4. What is the mole fraction of H2 in the mixture?
Blababa [14]

Answer:

0.1739

Explanation:

0.800 mol of N2

0.200 mol of H2

0.150 mol of CH4

Total moles of the mixture = 0.8 + 0.2 + 0.150 = 1.150 mol

Mole fraction of H2 = Number of moles of H2 /  Total moles

Mole Fraction = 0.2 / 1.150 = 0.1739

4 0
2 years ago
Other questions:
  • Given the equation representing a reaction: H2 O2 --&gt; H2O . What is the total mass of water formed when 8 grams of hydrogen r
    14·1 answer
  • Some fats are called "saturated" fats because __________. Select one: a. their carbon skeleton is bent to form four fused rings
    8·1 answer
  • a solution of hydrochloric acid contains 1.5 moles of the solute in 2.0 liters of solution. calculate the molarity of this solut
    8·1 answer
  • Scavengers break down wastes into simple, organic substances. <br> a. true <br> b. false
    14·2 answers
  • What is insulin's structure?<br> a.quaternary<br> b.secondary<br> c.primary<br> d.tertiary
    11·1 answer
  • Who is good with science?
    13·1 answer
  • Which of the following temperature scales contains an absolute zero? Fahrenheit (°F) Celsius (°C) Kelvin (K)
    7·1 answer
  • Explain reaction of metals with the following with the help of chemical equations. i) with acids ii) with oxygen iii) with water
    9·1 answer
  • How does solar radiation affect the thermosphere?<br> God bless all! :)
    9·2 answers
  • the mass concentration the mass concentration for a solution containing 45 g of calcium carbonate is 100 cm3 ​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!