What is the first step of an enzymatic reaction?

Answers

Answer 1

The first step of an enzymatic reaction is, substrate molecule (S) collide with enzyme(E) and react to form an intermediate compound called the enzyme-substrate (E–S) complex.

Enzymatic catalysis of a reaction between two substrates. The enzyme provides a template on which the two substrates are brought together in the correct position and orientation to react with each other. Enzyme-catalyzed reactions take place in at least two steps.

In the first step, an enzyme molecule (E) and a substrate molecule or molecules (S) collide and react to form an intermediate called an enzyme-substrate (E–S) complex. (This step is reversible, as the complex can dissociate into the original substrate or substrates and the free enzyme.) Once the E–S complex is formed, the enzyme is able to catalyze the formation of the product (P), which is then released from the enzyme surface:

S+E→E–S

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Related Questions

The plant chemical which absorbs sunlight and helps make cell food is
A.osmosis
B.cellulose
C.vaculoe
D.chlorophyll​

Answers

Answer:

chlorophyll

Explanation:

In q = mCΔT, what does C stand for?

Answers

Answer:

The symbol c stands for specific heat and depends on the material and phase. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00ºC.

A projectile is projected with an initial velocity of 40 m/s at a 45o angle to the horizontal. , calculate the total time travelled.

Answers

Answer:

5.77 s

Explanation:

From the question,

The total time travelled by the projectile = Time of flight (T)

T = 2usinθ/g............ Equation 1

Where T = Time of Flight of the projectile, u = Initial velocity, θ = Angle of projection to the horizontal, g = acceleration due to gravity

Given: u = 40 m/s, θ = 45°

Constant: g = 9.8 m/s²

Substitute these values into equation 1

T = 2(40)sin(45°)/9.8

T = 80sin(45°)/9.8

T = 80×0.7071/9.8

T = 5.77 s

Circle the letter next to each sentence that is true concerning the compressibility of gases. a. The large relative distances between particles in a gas means that there is considerable empty space between the particles. b. The assumption that particles in a gas are relatively far apart explains gas compressibility. c. Compressibility is a measure of how much the volume of matter decreases under pressure. d. Energy is released by a gas when it is compressed.

Answers

Answer:

The large relative distances between particles in a gas means that there is considerable empty space between the particles.

The assumption that particles in a gas are relatively far apart explains gas compressibility.

Compressibility is a measure of how much the volume of matter decreases under pressure.

Energy is released by a gas when it is compressed

Explanation:

The kinetic molecular theory establishes that gases are composed of molecules. These molecules of gas are far apart from each other hence there is a considerable empty space between the gas molecules. As a result of these empty spaces between gas molecules, it is possible to compress a gas.

Compressibility is defined as a measure of how much the volume of matter decreases under pressure. When a gas is compressed, work is done on the gas and energy is evolved hence the gas heats up.

Click to select the correct answers. Click again to unselect answers. Leave the incorrect answers unselected.
Choose all of the examples where there would be an increase in the electric or magnetic force.
Increase the amount of charge on each object
Decrease the distance between the objects
Decrease the charge on one of the objects
Increase the distance between the objects
Increase the mass of the objects

Answers

Answer:

1,2,5

Explanation:

I took it on usatesprep

1. Give the best advice on being understanding but kinda flirty to a friend that is a girl.
2. You can add a pickup line. :)
THIS IS AN EMERGENCY.

Answers

being understanding is flirty/attractive on its own. listening to her and asking questions bout the situation really shows her that you care and will make you attractive, also maybe inviting to go out to get her mind off things or getting her her fav candy & some other cute little things really will show her that you like her. just be nice to her and listen to what she has to say.

How many grams of KOH are needed to make 0.500 L of a 0.10 M solution

Answers

Answer:

2.8 g KOH

Explanation:

We can find the amount of moles we need by multiplying 0.500 L and the molarity given, 0.10 M (molarity is moles of solute divided by liters of solution). The liters cancel out, leaving us with moles; we can then take the moles and convert it to grams of KOH by using the molar mass of KOH.

0.500 L x 0.10 mol/1 L x 56.106 g /1 mol = 2.8 g KOH (two significant figures)

Which is the correct chemical symbol for this atom of helium?

Answers

H........................................

HELPPPPP MEEEEE ASAPPP

According to the diagram above, when the north end of the Earth’s axis is tilted toward the sun, explain the suns effect on the North America.

A. North America will experience more indirect rays and shorter days

B. North America will experience more indirect rays and longer days.

C. North America will experience more direct rays and shorter days

D. North America will experience more direct rays and longer days.

Answers

Answer:

the answer is  D

Explanation:

brainliest?

I need help answer with right answer

Answers

Answer:

I think it would be D

Explanation:

How many Zn atoms are there in 4.65 moles of Zn?
atoms
Submit Answer
Retry Entire Group
9 more gra

Answers

There are 6.5 grams

What is the pH of a solution that has a pOH of 5.9

Answers

Answer:

pH = 8.1

Explanation:

Assuming that we are at 25 degrees Celsius, pH + pOH = 14.

We can then plug in the given pOH and solve for pH:

pH + pOH = 14

pH + 5.9 = 14

pH = 14 - 5.9 = 8.1

Agas has a pressure of 6.58 kPa at 540 K. What will the pressure be at 210 K if the volume

does not change?

26 kPa

260 kPa

17.000 kPa

17 kPa

Previous

Next >

Answers

Answer:

[tex]P_2=2.6kPa[/tex]

Explanation:

Hello there!

In this case, according to the Gay-Lussac's gas law, which illustrates the pressure-temperature behavior as a directly proportional relationship:

[tex]\frac{P_2}{T_2}=\frac{P_1}{T_1}[/tex]

We can solve for the final pressure as shown below:

[tex]P_2=\frac{P_1T_2}{T_1}[/tex]

Thus, we plug in the initial pressure and temperature and final temperature to obtain:

[tex]P_2=\frac{6.58kPa*210K}{540K}\\\\ P_2=2.6kPa[/tex]

Which is not among the choices.

Regards!

PLEASE PLEASE PLEASE HELP:
An unknown material has 389 J of heat energy added to it. If its specific heat capacity is 0.371 J/g*C and 58 g were affected, what was the temperature increase?

Answers

i know the answer but i really don’t

Predict the shape of the molecule.

Answers

Answer: circle

Explanation:

When mechanical energy is transformed,
A.
potential energy remains unchanged.
B.
heat is given off.
C.
kinetic energy remains unchanged.
D.
friction is encountered.

Answers

Answer:

kinetic energy remains unchanged

I NEED HELP ASAP!! What is the difference between the experimental group and a control group?​

Answers

I believe the control group is what doesn't change in the experiment, and the experimental group is what is being tested / receives the treatment :)

At what temperature would the volume of a gas be 0.550 L if it had a volume of 0.432 L at –20.0°C? Be careful! This is not in the correct units for temperature.

Answers

Answer:

49.2°C is the temperature

Explanation:

Based on Charles's law, the absolute temperature of a gas is directly proportional to the volume under constant pressure. The equation is:

V1 / T1 = V2 / T2

Where V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.

Computing the values of the problem:

V1 = 0.432L

T1 = -20.0°C + 273.15K = 253.15K

V2 = 0.550L

T2 = ?

0.432L / 253.15K = 0.550L / T2

322.3K = T2

322.3K - 273.15 =

49.2°C is the temperature

What is the pH of a 4.7 x 10-9 M HCl solution? *

4.67


8.33


11.21


2.93​

Answers

11.21 or 2.93 I think

How many Joules are required to heat 40g of water from 13°C to 40°C?
J

Answers

Answer: 1080

Explanation:

you have to subtract 40 from 13 frist then multiply the remins of the temeture with 40 and your answer is 1080

define a lone pair and give example

Answers

Answer : a lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond and is sometimes called an unshared pair or non-bonding pair

Explanation: ex: Water, Ammonia, hydrogen fluoride. come to mind as the simplest such molecules with lone pairs.

The N in ammonia has 1 lone pair and three bonds (to H).

The O in water has 2 lone pairs and two bonds (to H)

the F in Hydrogen fluoride has 3 lone pairs and one bond.

Answer:In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond and is sometimes called an unshared pair or non-bonding pair. Lone pairs are found in the outermost electron shell of atoms. They can be identified by using a Lewis structure.

What volume of DI water, in mL, must you use to dissolve 30.0 g of NaOH in order to make a 1.25 M solution? mL (round to whole number)

Answers

Answer:

600mL

Explanation:

Molarity of a solution (M) = number of moles (n) ÷ volume (V)

number of moles = mass/molar mass

Molar mass of NaOH = 23 + 16 + 1

= 40g/mol

mole = 30/40

n of NaOH = 0.75mol

Using Molarity = n/V

V = number of moles ÷ molarity

V = 0.75 ÷ 1.25

V = 0.6L

In milliliters (mL), the volume of NaOH will be 0.6 × 1000

= 600mL

a 1.4g sample of pure gas occupies a volume of 981 mL at 42°C and 117 kPa. Determine the molar mass of the compound.

Answers

Answer:

51 g/mol. Explanation: Whenever you see molar masses in gas law questions, more often than not density will be involved.

Which molecule is shown below?
H
H-C-H
The
H Η Η Η Η
H-Ċ-Ċ-Ċ-Ċ -C-0-H
11 11 1
Η Η Η Η Η Η
A. 2-ethylhexane
B. 2-methylhexane
C. 3-methylhexane
D. 3-ethylhexane

Answers

Answer:

2-methylhexane

Explanation:

just took it the quiz

2-methylhexane is the molecule shown below. Hence option B is correct.

What is Molecule and atom ?

Atom is smallest entity of a body. Body is made up of atoms. it is basic building block of a body. An atom consist of electrons, protons and neutrons as sub atomic particle. whole mass of the atom is concentrated at the center of the atom which we call it as nucleus, nucleus consist of proton and neutron. Electron revolve around the nucleus at determined(fixed) orbit. Total number of protons in the atom decides the atomic number and the elements in the periodic table.

Molecule is made up of atoms, it is formed when two or more atoms bound together. The electrons in the outermost orbit are responsible for the molecule formation. Electrons are shared by the atoms in the entire molecule.

In this problem the structure shown in this figure is a structure of 2-methylhexane. Hence option B is correct.

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Blood is made up of red and white blood cells, platelets and ______.






Find the interquartile range

Answers

blood is made up of red and white blood cells, platelets and plasma

In which of the following groups of ions are the charges all shown
correctly?

Answers

Answer:

magnesium and potassium are the group of ions

Explanation:

magnessium has positive charge and pottasium has negative charge

Question :What's oxidation?

Answers

Answer:

The process or result of oxidizing or being oxidized.(Rust)

Explanation:

Pluto

Albino trees exist in nature, but they’re rare. These trees contain a gene mutation that causes them to lack chlorophyll, so their leaves are white. In California, albino redwood trees are parasites. They survive off the energy from nearby redwood trees. Why do you think they need to use energy from other trees to survive?

Answers

Answer:

They need to use energy from other tress to survive so that they can do basic functions, like absorbing nutrients from the ground, and growing back leaves. They don't have chlorophyll, so they need that energy to do the functions I mentioned above.

Explanation: Hope this helps!

Answer:

Trees need chlorophyll to make energy. Because albino trees don’t have chlorophyll, they can’t create their own energy. So, they must take energy from other trees to survive.

Explanation:

All of the facts about our star the Sun listed below are true EXCEPT which option?
A. the sun is the smallest object in our Solar System.

B. the sun is an average-sized yellow star.

C. the sun is located in an arm of the spiral shaped Milky Way galaxy.

D. the sun appears brighter because it is much closer to Earth than other stars

Answers

Answer:

A

Explanation:

The sun is the smallest object in our solar system

Answer:

A. the sun is the smallest object in our solar system

Explanation:

In 2009, the Hubble Space Telescope discovered the smallest object ever seen in visible light at the time within the Kuiper Belt. The Kuiper Belt Object (KBO) found was a mere 3,200 feet (975 meters) across and was 4.2 billion miles away.

can someone please help me:(​

Answers

Answer:

I think (B) is right answer because here oxygen is a combustible material and combustible is always take place when oxygen is burn

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