During a laboratory experiment, you discover that an enzyme-catalyzed reaction has a △G of -20 kcal/mol. If you double the amount of enzyme in the reaction, what will be the △G for the new reaction?


A. +20 kcal/mol

B. -40 kcal/mol

C. -20 kcal/mol

D. -10 kcal/mol

Answers

Answer 1

Answer:

Option-C

Explanation:

Delta G (△G) refers to the overall energy released during a chemical reaction when equilibrium is reached i.e the rate of conversion of product into the substrate is equal to the rate of conversion of substrate into product. Thus, △G accounts for the equilibrium of the reaction.

In the given question, it has been mentioned that △G of a reaction is -20 kcal/mol then how will it change if the amount of enzyme is doubled.  

The △G is not affected by the enzyme concentration as the presence of enzyme affects the G (Gibbs free energy) and activation energy.

Therefore, △G will remain the same even if the amount of enzyme is doubled i.e -20 kcal/mol will be the correct value.

Thus, Option-C is the correct answer.


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the hard work he went through

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False — life cycles have to do with birth to death progressions, not genetic traits.

Explain how geography influences genetics

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Answer: Environmental variables can influence the movement of gametes, individuals and groups of individuals among natural populations to affect gene flow patterns, which may have a profound influence on the spatial and temporal distribution of genetic variation and further, evolutionary progress of natural populations.

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Answer:

6.02E+23 atoms

Explanation:

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Answer:

Lines of Evidence supporting theory of evolution by natural selection: Fossil evidence, Biographical evidence and Anatomical evidence.

Explanation:

I majored in Biology

how has selective breeding contributed to a wide variety of dog breeds?​

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Answer:

In the same way that inbreeding among human populations can increase the frequency of normally rare genes that cause diseases, the selective breeding that created the hundreds of modern dog breeds has put purebred dogs at risk for a large number of health problems, affecting both body and behavior.

Combined sewage overflow has been linked to eutrophication in ecosystems within NYC, including Jamaica Bay and Coney Island Creek. Based on your understanding of eutrophication, why might combined sewage overflow be causing an overgrowth of harmful algae in NYC? Explain your answer in YOUR OWN WORDS please.

(This is 7th grade science).

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A. Of the 100 cells shown, how many are in the process of dividing?

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Answer:

Can you show me a picture? I can't answer your question without being able to see a picture or a graph of some sort. Thanks!

Explanation:

How do stem cells know what type of cell to differentiate into?

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Through gene expression, transcription and translation of this subset of genes determines how a cell looks and acts—its phenotype. ... | Cell fate means that a stem cell “makes a decision” to differentiate into a more mature cell type.

Summarize cell division in prokaryotes

Answers

According to the research, the correct answer is that unicellular living beings like prokaryotes have their cell division by binary fission, forming two identical individuals (daughter cells).

What is binary fission?

It refers to the process of cell division where first the deoxyribonucleic acid (DNA) is duplicated and then cytonesis occurs, which involves the separation of the cytoplasm.

In this sense, it gives rise to two daughter cells with identical genetic material, this is the reproduction method shared by certain yeasts, algae, bacteria and other prokaryotic organisms.

Therefore, we can conclude that the cell division mechanism of prokaryotes is through binary fission where two daughter cells arise.

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The electrons that travel through electron transport chain #1 (and that have been excited off of the chlorophyll molecules on photosystem #2) are used to

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Answer:

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Explanation:

Hope this helps :)

Where in Nebraska was the oldest known species of horses found? *

Answers

Answer:

Knox County

Explanation:

i live in Nebraska

The oldest known species of horse found in Knox County in Nebraska, Eohippus, (genus Hyracotherium), also called dawn horse, is considered as oldest known species of horse, hence option 1 is correct.

What are the species of horses?

The horse is a mammal considered a domesticated one-toed, hoofed mammal and belongs to the taxonomic family of Equus ferus, there is only one species of a domesticated horse but around 400 breeds developed for the improvement of their strength.

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These animals generally use for domestication purposes by human beings for pulling carts and heavy materials.

Therefore, in Knox County of Nebraska, the oldest known species of horses is found, hence option 1 is correct.

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The given question is incomplete, so the most probable complete question is,

Where in Nebraska was the oldest known species of horses found?

1: Knox County

2: United States

3: Grand Island

4: Omaha

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Answers

The best conclusion you can make about the life cycle of this cell is that the cell is in the S phase of interphase and will move next to the G2 phase.

S phase (Synthesis Phase) is the phase of the cell cycle in which all of the chromosomes (DNA) are replicated within the nucleus. During this phase, the DNA is effectively doubled as each chromosome contains two sister chromatids. After the S phase, the cell enters the G2 phase where various proteins (such as microtubules) are synthesized.

Ok how about my guinea pig? Please don't report.

Answers

beautiful lolhxoydiylhdljxluflueoyful

Answer:

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Explanation:

what is the function of the respiratory system?
1. to break down food.
2. to breathe.
3. to transport materials in the body.
4.to rid the body of waste.
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Correct answer is 2 - To breathe

at which temperature would air hold the least water vapor?

Answers

Answer: I believe it's 60 degrees Fahrenheit or less, Since heat is required to have proper evaporation, then this will only be leading to a portion of the water condensed leading to a half condensation

Explanation:

Answer:

the coldest temp in F holds the least amount of water vapor..

please answer asap! anatomy final exam!! thanks:)
Describe what lymph is and how it travels throughout the body. What would happen if the lymphatic system did not drain interstitial fluid from the body?

Answers

Answer:

A fluid that flows through the lymphatic system is called lymph. it travels when you breathe and move your muscles the lymph continuously get pushed towards the heart from the outer reaches of your body. if the lymphatic system didn't drain interstitial fluid then the lymph fluid would build up in the body's tissues, making them swell.

(GIVING BRAINLIEST!!)
Which common characteristic of planets do Saturn and Earth share?

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Answers

Answer:

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Explanation:

The answer is C. Earth doesn’t have rings. Saturn has way more moons then earths

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Answers

Answer:

Air is forced to rise over mountains, air cools and condensation occurs, rain falls over the mountains, dry air sinks down the other side of the mountain. Some deserts form in areas that lie at great distances from the sea. The air here is much drier than on the coast.

Explanation:

In C3 cycle one carbon compound is accepted by?

Answers

Answer:

The correct answer is - RuBP.

Explanation:

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Answers

Answer: The biochemistry is the scientific study of the chemical substances.

Explanation:

In biochemistry the chemical composition of the chemical substances and their involvement in the vital body processes in living organisms is studied. The function and structure of the chemical compounds and their associated biomolecules is studied thoroughly. The biochemistry is studied at the molecular and the atomic level. In biometry the structural dimensions of the biomolecules is studied. This way the biochemistry is linked with biometry.

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Answer:

2 Refraction, Transition/bouncing?

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StraightLustre,ShineMirrorTransparency, PropertyNot deep,less fastersee,redoblique ,blockswood,more metals,Board,pen

Look at the graph below. A graph is shown with Absolute magnitude shown on y axis and Surface temperature in degree Celsius shown on x axis. The Dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. The Main Sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. The giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. The supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. Point A has coordinates 20,000 and minus 4. Point B has coordinates 2,500 and minus 4. Point C has coordinates 5,000 and 2. Point D has coordinates 7,000 and 4. Which of the following stars is most likely to be red? Star A Star B Star C Star D

Answers

Answer:

Star A

Explanation:

If you look directly at the diagram, the dwarf stars are labeled under 'A' and are the least in mass and temperature.

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What are stars?

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Stars have different colors and different sizes.

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From the chart, Star A which is a dwarf star has the coldest temperature, and therefore is a red star.

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if a sample known to be about 11,460 years old and has 400 carbon 14 Adams how many atoms are in the sample when organisms just died

Answers

Answer:

There are 1600 atoms when organism just died.

Explanation:

The statement is incorrect. The correct statement is:

If a sample known to be about 11,460 years old and has 400 carbon 14 atoms. How many atoms are in the sample when organisms just died?

The amount of atoms associated with radioactive isotopes decreases exponentially in time by means of the following formula:

[tex]n(t) = n_{o}\cdot e^{-\frac{t}{\tau} }[/tex] (1)

Where:

[tex]n_{o}[/tex] - Initial amount of atoms.

[tex]n(t)[/tex] - Current amount of atoms.

[tex]t[/tex] - Time, measured in years.

[tex]\tau[/tex] - Time constant, measured in years.

In addition, the time constant can be calculated in terms of the half-life of the radioactive isotope ([tex]t_{1/2}[/tex]), measured in years:

[tex]\tau = \frac{t_{1/2}}{\ln 2}[/tex] (2)

If we know that [tex]t_{1/2} = 5,730\,yr[/tex], [tex]t = 11,460\,yr[/tex] and [tex]n(11,460\,yr) = 400[/tex], then the initial amount of atoms is:

[tex]n_{o} = \frac{n(t)}{e^{-\frac{t}{\tau} }}[/tex]

[tex]\tau = \frac{5,730\,yr}{\ln 2}[/tex]

[tex]\tau \approx 8,266.643\,yr[/tex]

[tex]n_{o} = \frac{400}{e^{-\frac{11,460\,yr}{8,266.643\,yr} }}[/tex]

[tex]n_{o} \approx 1600[/tex]

There are 1600 atoms when organism just died.

⦁ In what stage of an animal’s life cycle do most cells differentiate?

Answers

Answer:

Reproduction

Explanation:

Answer:

Animals and plants produced by sexual reproduction begin life as a single cell, a fertilised egg or zygote . These cells must divide by mitosis to produce a multicellular organism.

6) Pamela went to the doctor for her yearly check-up. They discovered that she had decreased
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hormonal supplements, she should be able to conceive a child.
What systems are affected?
Why?

Answers

Answer:

strogen and progesterone levels

Explanation:

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Answer:

Saturated fatty acids lack double bonds between the individual carbon atoms, while in unsaturated fatty acids there is at least one double bond in the fatty acid chain. Saturated fats tend to be solid at room temperature and from animal sources, while unsaturated fats are usually liquid and from plant sources.

Explanation:

Does Natural Selection affect individuals or populations? EXPLAIN.

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Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

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