If [e]t was the concentration of lactase in the kinetics trials, what expression gives the concentration of lactase in the commercial preparation of this enzyme?

Answers

Answer 1

DF = 1/250 x 1/2

Vt = Et

Vf = final concentration of lactase in the commercial preparation

DF = Vt / Vf

Vf = Vt / DF

Vf = Et / (1/250)(1/2)

Vf = Et x 500

The commercial preparation was first diluted by 1 - 250 to prepare the stock solution, and it was further diluted by 1 -2 by mixing with the substrate stock solution to perform the kinetics experiments.

Therefore, the dilution factor is done when you take whatever you initial volume was - in this case 1mL - and divide it by the new diluted volume - 0.1mL + 25mL. Then we get is 0.1/25.1, which is more easily solved as 1/250.

Since, this was a double dilution, 1mL of the initial dilution was diluted further with 1mL of substrate. So the second dilution factor will be 1/(1+1) = 1/2.

To learn more about kinetic experiments here

https://brainly.com/question/13004369

#SPJ4

If [e]t Was The Concentration Of Lactase In The Kinetics Trials, What Expression Gives The Concentration

Related Questions

BRAINLIEST Explain the difference between a scientific law and a scientific theory.

Answers

A scientific theory is a theory that explains the scientist's observations, whereas a scientific law is a repeated pattern in the world that we have not sought an explanation for.

Answer:

A theory is a group of related hypotheses that can be accepted as true based on repeated investigations with similar results. A law is a scientific concept that explains what patterns of behavior will be seen through repeated investigations

Explanation:

sample response on edge

what is site of gaseous exchange in an insect​

Answers

Answer:

what are the answers? if I knew the answers I could tell ya

Experiment 2:
Compare the circumference of the balloon before and after freezing. What is the percent increase in this measurement?

Answers

Answer:

17%

Explanation:

Answer:

17%

Explanation:

Radiant energy is the source of electromagnetic waves, which include x-rays, infrared and ultraviolet waves among others. The diagram below shows the electromagnetic spectrum. Which wave has the greatest frequency?

Answers

Answer:

gamma

Explanation:

In the electromagnetic spectrum, gamma rays are the electromagnetic waves which have greatest frequency.

What is electromagnetic spectrum?

The electromagnetic spectrum consists of electromagnetic  radiation which consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The waves are arranged in decreasing order of energies in the electromagnetic spectrum.There are seven types of electromagnetic waves.

Learn more about electromagnetic spectrum,here:

https://brainly.com/question/23727978

#SPJ2

What describes the conversion of ADP to ATP?

A)an input of energy as both phosphate groups detach


B)a release of energy as one phosphate group detached

C) a release of energy as a third phosphate group is attached

D) an input of energy to attach a third phosphate group

Answers

Answer:

D

Explanation:

The option that describes the conversion of ADP to ATP is D) an input of energy to attach a third phosphate group.

What is ADP?

ADP (adenosine diphosphate) is a molecule that is made up of adenosine and two phosphate groups. ATP (adenosine triphosphate) is a molecule that is made up of adenosine and three phosphate groups. The conversion of ADP to ATP is an energy-intensive process that requires an input of energy.

The third phosphate group is attached to ADP by a process called phosphorylation. Phosphorylation is an energy-requiring reaction that uses ATP as a source of energy.

Find out more on ADP conversion at https://brainly.com/question/14452154

#SPJ6

Grace and Carlos are going for a walk the temperature is -15°C with wins at 10 to 12 mph what should I wear

Answers

A snow coat, snow boots, gloves, socks, hat anything to keep u warm

2. A food web explains why there are more _____. It is because more energy is available to _____. A. Decomposers than consumers / consumers b. Producers than decomposers / consumers c. Consumers than producers / producers d. Producers than consumers / producers

Answers

Answer:

D

Explanation:

A food web explains why there are more producers than consumers. It is because more energy is available to producers.

The food web is a structural representation of the feeding relationship that exists among the living organisms in a particular environment.

A typical food web groups living organisms as producers, consumers, or decomposers. Producers are those that fix sunlight energy into chemical energy, a process known as photosynthesis while consumers are those that either feed on producers or other living organisms in the environment. The decomposers return both producers and consumers back to the earth and help nutrients circulate in the environment.

In a typical food web, producers are usually more than consumers because more energy is usually available at this level. Less and less energy becomes available as we move up the ladder in each food chain that makes up the food web.

The correct option is D.

WILL GIVE BRIANLIEST

What evidence supports the law of conservation of energy?


Light energy is converted to chemical energy during photosynthesis.

Oxygen is made from the breakdown of carbon dioxide during photosynthesis.

Energy is absorbed by chlorophyll during photosynthesis.

The sun gives off light energy that is absorbed by plants.

Answers

Answer:

Light energy is converted to chemical energy during photosynthesis.

Explanation:

nevermind.............

HELPPP ASAPPPP!!!! Plsssss

Answers

Answer:

Waxing gibbous

Answer:

waxing gibbous

Explanation:

1. Look at the five structures shown here. How do you think they are related to each other?

Answers

Answer:

They are all related to cells

Explanation:

;^; can you list the answers

DNA is a structure made up of two coiled polynucleotide chains with nitrogenous bases present in chromosomes. These chromosomes are present in the nucleus of the cell. These cells together form an organism.

What are Cells?

Cell is define as the smallest unit which can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts:

1. The cell membrane

2.The nucleus

3. The cytoplasm.

A nucleus is defined as the membrane-enclosed organelle within a cell that contains chromosomes. It is an array of pores, or pores, in the nuclear membrane that allow the selective passage of certain molecules, such as proteins and nucleic acids, into and out of the nucleus.

Chromosomes are define as the threadlike structures made of protein and a single molecule of DNA which serve to carry the genomic information from cell to cell. These DNA (Deoxyribonucleic acid) is a polymer which is composed of two polynucleotide chains that coil around each other to form a double helix consisting of nitrogenous bases.

Thus, DNA is a structure made up of two coiled polynucleotide chains with nitrogenous bases present in chromosomes. These chromosomes are present in the nucleus of the cell. These cells together form an organism.

Learn more about Cell, here:

https://brainly.com/question/12129097

#SPJ2

What usually happens to a population of organisms when the region's carrying capacity has been reached?

Answers

Answer:

the population starts to slowly decline

Explanation:

The population will decline drastically because there is not enough resources to sustain the population or increase the population.

In the body, red blood cells have a much shorter lifetime than cheek cells.
Use ideas about the different structure of these cells to suggest why.​

Answers

Red blood cells do not have a nucleus.
It does not consist of a cell membrane or a cytoplasm.
It simply only transports oxygen around the body.
Pls mark me brainliest:)

If you see an ant digging an anthill, chances are it's:
a. A worker
b. A drone
c. A larva
d. A queen

Answers

Answer: A

Explanation:because the queen sits and because i got it right

Which scenario would most likely result in cooperative hunting? Finches eat grass seeds, but grass seeds are not found in an area during winter months. A shark eats a certain kind of fish, and the fish swim together when the shark comes close. Wolves eat rabbits, and the number of rabbits in an area is low. Lions eat zebra, and there are a lot of zebra and lions living in an area.

Answers

C. Wolves eat rabbits, and the number of rabbits in an area is low.
Answer:

A scenario that would most likely result into cooperative hunting is where there are few and limited number of rabbits in an area, and as such, it is difficult to hunt rabbits due to scarcity. In order to increase their chances of catching rabbits, wolves in that area would cooperate together and hunt in packs.

Mark me as brainliest ❤️

DNA relays information in the _______ of its nitrogenous bases.
1.Length
2.Size
3.Order
4.Composition

Answers

Answer:

3

Explanation:

DNA RELAYS INFORMATION IN THE ORDER OF ITS NITROGEN BASES

I believe the correct answer is 3. Order.

Science cells pls help

Answers

Answer:

sou brasileira bem não posso ajudar ok

What activities can increase the amount of atmospheric CO2?

Answers

Answer:bush burning

Explanation:

Since CO2 is a byproduct of combustion, it is released in a large quantity during bush burning

burning fossil fuels increases the amount of CO2 in the atmosphere!
ex. coal, gas

student obtain a dear image of window bars on a screen with the help of a convex lens. But
in order to have the best image, his teacher suggested him to obtain the image of a distant tree
Where will the lens has to be moved in order to obtain a clear image?
a, away from the screen
b. behind the screen
c. towards the screen
d. at a very long distance from the screen​

Answers

Answer:

A is the answer- away from the screen the lens needs to move

The Colorado River provides water and electricity for over 40 million people. But so much water is withdrawn from this river for agriculture/livestock and drinking water, that very little of it reaches the sea. Due to drought and overuse, it currently is drying up. This will be a major problem because crops and livestock in the USA depend on this water. What percent of the nation's crops and livestock rely on the river's water?​

Answers

Answer:

About 80%

Explanation:

I might be wrong but at least 80%

2. RNA polymerase is a type of enzyme. Enzymes help chemical reactions occur quickly. Click the Release enzyme button, and describe what happens.

Answers

Answer:

The nucleotides are split

Explanation:

With the release of enzyme, enzyme take part in the chemical reaction without utilizing in it.

When the enzyme release by any glands in the body, it attached to the substrate and speed up the chemical reaction without using in it. Once the chemical reaction ended, the enzyme which attached the substrate earlier detached and then attached other substrate in order to speed up the chemical reaction.

Without enzyme, chemical reaction occurs but at a very slower rate so we can conclude that with the release of enzyme, enzyme take part in the chemical reaction without utilizing in it.

Learn more: https://brainly.com/question/21571415

1. What are 5 sources of natural gas used today.

Answers

Additional sources of hydrocarbon gases that are included in U.S. natural gas production and consumption are supplemental gaseous fuels, which include blast furnace gas, refinery gas, biomass gas, propane-air mixtures, and synthetic natural gas (natural gas made from petroleum hydrocarbons or from coal).

Which of the following is not a premise of Cell Theory?
l. All cells arise from other cells.
ll. All living cells require water for survival.
lll. All living things are only composed of cells.
Choose 1 answer:
a. I only
b. ll and lll
c. ll only
d. lll only

Answers

All cellsarisefromothercells a I only

Which factor is needed for both thunderstorms and hurricanes to form?

Answers

Answer:

C. rising moist air

Explanation:

for the storm to start/process it needs the moist air in order for both hurricanes and thunderstorms to happen, because the rotation with the moistness creates the storms.

Hope this helps

Answer:

rising, moist air

Explanation:

because it is i got it right on my test

2. The theory that shows that the Sun is in the center of the solar system is called
a. Geocentric Theory
b. Scientific Theory
C. Egocentric Theory
d. Heliocentric Theory

Answers

Heliocentric theory thank you for your time .

PLEASE HELP WILL MARK THE BEST!!!!

Answers

Answer:

#3#5#7

Explanation:

hopes this helps

1 DNA unzips exposing nitrogen bases.
2 RNA nucleotides pair up with their corresponding DNA bases, copying the code.
3 mRNA carries the newly copied code out of the nucleus and to the ribosome.
4 tRNA brings the appropriate amino acids to the ribosome depending on the code.
5 A series of amino acids make up the newly formed proteins.
6 The proteins get to work!

Which of the above steps is Transcription?
Which of the above steps is Translation?


(Please answer ASAP)
Thanks for answering, I appreciate you for the help you have provided me! Enjoy your day/night.

Answers

Transcription: 1,2,3 (DNA->RNA)
Translation: 4,5,6 (RNA-> PROTEIN)

PLEASE HELP, WILL MARK BRAINLEST

The picture below shows a model of the solar system.

Picture shows the sun in the center and six circular orbits around it. The first orbit around the sun has the planet Mercury, the second orbit has planet Venus, the third orbit has planet Earth, the fourth orbit has planet Mars, the fifth orbit has planet Jupiter, and the sixth orbit has planet Saturn.

Which of these is most likely a use of this model?

make the concepts about solar system more understandable
show the exact distances between objects in the solar system
reproduce every characteristic of the solar system accurately
prove that most theories about the solar system have loopholes

Answers

Answer:

A

Explanation:

It is likely used as a representation of the solar system to help visual learners understand better.

Answer:

A

Explanation:

Complete a Punnett square for the cross-pollination of a female (TT) and a male (Tt). Write in the correct answers to complete the square.

Answers

first row: T, T

first column: T, t

row 2, column 2: TT

row 2, column 3: TT

row 3, column 2: Tt

row 3, column 3: Tt

it doesn't matter whether you put the female (TT) in the first row or the male (Tt) in the first row. you can interchange those positions.

i hope this helps! have a great day :)

A scientist is studying a worm. It is three millimeters long and pointed at each end. The worm is unsegmented and has only male reproductive structures.

Which kind of worm is the scientist most likely studying?

a tapeworm
a flatworm
a roundworm
an earthworm

Answers

Answer:

i think the answer is c roundworms

Explanation:

i know im right becausee i made a 90% with this being right

Answer:

a roundworm

Explanation:

I got the answer right on quiz .

why do you think using a person's own cell to make a new organ or tissue for them will increase the chance that their body will accept the transplant?

Answers

Answer:

In my personal opinion, I think this is possible because your body already knows the cell. It is already familiar with it.

Explanation:

Other Questions
What is the value of x in X 9? Given: Line a and line b intersect Prove: in which process is energy absorbed by the substance undergoing the change state?a.melting or freezingb.condensation or vaporization Non -examples of the property 0 Give the first five terms of the sequence:2/5,A =4/5; n = ,-2 (for n 3) What is the solution for [tex]x^{2} + 4x\ \textgreater \ 77[/tex]? x < 7 or x > 11 x < 11 or x > 7 7 < x < 11 11 < x < 7 A convex mirror forms an image of half the size of the object. When it is moved 15 cm away from the object, the size of the image becomes 2/5 times the size of object. Find the focal length of convex mirror. Answer is 30. What does the phase full faith and credit mean in Article VI of the Constitution? According to the theory of plate tectonics, the movement of plates cane form mountain ranges and valleys. Within the next 100 million years the Great Rift Valley in Africa will most likely become a ? An advantage of electromagnets over bar magnets is that you can easily vary the __________ of the magnetic field. What word completes this sentence?. What is the total area of the three triangle? How does each branch of the federal government "check" the other two branches? The average person spends about 1/10 of their walking hours with their eyes closed. If Mrs. James was awake for 15 1/2 hours today, how much more time did she have her eyes open than closed.? PLEASE HELP Maisie knows that she needs 3 kg of grass seed to make a rectangular lawn 5 m by 9m. Grass seed is sold in 2 kg boxesMaisie wants to make a rectangular lawn 10 m by 14m. She has 5 boxes of grass seed. (a) Has Maisie got enough grass seed to make a lawn 10 m by 14m!You must show allyour working(4) A newsletter publisher believes that more than 31% of their readers own a personal computer. Is there sufficient evidence at the 0.02 level to substantiate the publisher's claim?State the null and alternative hypotheses for the above scenario Fill-in-the-blank with GUSTA or GUSTAN.Meespaol.O gustaO gustanestudiar el The 65 students in a classical music lecture class were polled, with the following results: 36 like Wolfgang Amadeus Mozart 37 like Ludwig van Beethoven 32 like Franz Joseph Haydn 14 like Mozart and Beethoven 20 like Mozart and Haydn 15 like Beethoven and Haydn 8 like all three composers. How many of these students like:________. a. exactly two of these composers? b. exactly one of these composers? c. like only Mozart? d. like haydn and exactly one of the other two?e. like none of these composers? Solve 4x-2y=-10 y=x+1 using the substitution method All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday. 25% of students brought their lunch. 50 students brought their lunch. How many students in total are in Ridgewood Junior High School? the perimeter of a rectangle is 70 cm. if its length is decreased by 5 cm and its width is increased by 5 cm,its area will increase by 50 cm^2.find the length and the width of the original rectangle