A student is investigating how substrate concentration affects the rate of anenzyme-catalyzed reaction. Which ​threevariables​ should be kept constant in the setup of thestudent’s investigation? Select all three variablesA. temperature of the reactionB. amount of enzymeC. amount of substrateD. amount of productE. pH of the reaction

Answers

Answer 1

Answer:

A. temperature of the reaction

B. amount of enzyme

E. pH of the reaction

Explanation:

Temperature should be kept constant because enzymes operate at different activity rates depending on the temperature. The same goes for the pH as well with different enzymes having different optimal pH levels.

The amount of enzyme should be kept constant as well because different concentrations of enzymes can determine how fast the reaction will occur.

Essentially anything that could affect enzyme activity apart from substrate concentration should be kept constant.


Related Questions

do you guys know any good songs or good ways to remember all the bones in the body and where they are???? i have a test tomorrow for this and i cant remember any of it​

Answers

Answer:

The human bones song  by jam campus or how to learn the human bones video

Explanation:

Which of these is an abiotic infectious agent?
● Bacteria
●Fungi
● Parasites
● Viruses​

Answers

It should be viruses

Answer:

A. Bacteria

Explanation:

Hope this helps!

What does permafrost do the the soil? (The soil in the tundra)

Answers

Answer: It makes the soil frozen and hard

Explanation: the permafrost frezzes the soil and doesnt allow any plant life to grow

When plants die this causes what to increase?

Answers

Answer:

Explanation:

Improper watering is often the reason for sudden dying of plants. If you forgot to water for a few days, it's possible that the roots dried up. ... Root rot, a result of wet, poorly drained soil, can be occurring under the surface of the soil, even if the plant looks healthy.

Answer: just like the one above is correct! Improper watering.

Please help I’ll give brainliest to whoever’s right

Answers

Answer:

1:Gravity acts on all masses equally, even though the effects on both masses may be different because gravity causes all objects to fall at the same constant rate of 9.8 m/s2. An object in free fall means that the only force acting on the object is gravity

2:Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies.

3:A scientific theory is an explanation of something in the natural world that is based on past observations and evidence.

4:In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.

Explanation:

What's a chromosome

Answers

A chromosome is a strand of DNA that is encoded with genes. In most cells, humans have 22 pairs of these chromosomes plus the two sex chromosomes (XX in females and XY in males) for a total of 46.

what is the result of cell that undergo division by mitosis

Answers

Answer:

mitosis results in two identical daughter cells ..hope this helped!

Explanation: a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.

Write a 5-sentence paragraph to explain how energy and work are related. Give an example of that.

Answers

This amount of energy transferred by the force to move an object is called work or work done. ... Thus, the relation between Work and Energy is direct. That is, the difference in the Kinetic energy of an object is work done by an object.

Genetics Problem Solving Chapter 25

Answers

Answer:

See the answer below

Explanation:

1.      Tt   x   Tt

   TT  Tt   Tt   tt

Assuming that T is dominant over t:

Genotype ratio = 1TT:2Tt:1tt

Phenotype ratio = 3:1

2.     Rr   x   Rr

    RR   Rr   Rr   rr

Assuming that R is dominant over r:

Genotype ratio = 1RR:2Rr:1rr

Phenotype ratio = 3:1

3.  Assuming that green (G) is dominant over the other color (g). Heterozygous green would be Gg

        Gg   x   Gg

     GG   Gg   Gg   gg

Genotype ratio = 1GG:2Gg:1gg

Phenotype ratio = 3:1 (green ratio the other color)

4. Assuming that green (G) is dominant over the other color (g) as above:

  homzygous green plant = GG; heterozygous green plant - Gg

      GG   x   Gg

   GG   Gg   GG   Gg

Genotype ratio = 1GG:1Gg

Phenotype ratio = 100% green

5. Assuming that tall (T) is dominant over short (t)

Homzygous tall plant = TT

short plant = tt

         TT   x   tt

       Tt   Tt   Tt   Tt

Genotype ratio = 100% Tt

Phenotype ratio = 100% tall

Answer this please. Its gizmos

Answers

the answer is A. because none of the other answers allowed for a full white AND a full red chicken

which of the following changes depending on changes to gravitational forces
a. velocity
b. mass
c. shape
d.weight​

Answers

I think mass. I’m really sorry if I’m wrong.
which of the following changes depending on changes to gravitational forces
b. mass

A woman who has blood type A positive has a daughter who is type O positive and a son who is type B negative. Rh-positive is a trait that shows simple dominance over Rh-negative. Which of the following is a possible phenotype for the father?
A) A negative
B) O negative
C) B positive
D) AB negative

Answers

Answer:

The correct answer is - C) B positive

Explanation:

In the given question is the man has B positive blood group with two offspring a girl with type O positive and a son who is type B negative. In ABO blood group A and B if present together they express in offspring if present together.

Here the difference in the Rh factor only as the blood group O has no antigen on its surface therefore the most possible phenotype for the father as he has son with B negative and a daughter with  O positive.

Find the stoma. Explain the gas exchange process that is taking place.
please help :(

Answers

The gas exchange in plants takes place through stomata, and the process is called diffusion. ... The stomata cells are found on the dicotyledonous leaves, and they are arranged parallel in the case of monocotyledons. A higher concentration of stomata cells is found towards the lower surface of the leaf.

The distribution of the height of humans is a normal distribution. There are some very y'all people, and some very short people, but most people are in the middle. What is most likely true about this trait?

Answers

Answer:

humans normal distribution

Explanation

sorry

You need a dog to work with the police.What traits would you want the dog to have? Why?

Answers

Obedience, because the dog should know when to attack and when to call down

Which best describes independent assortment?

In metaphase 1, chromosomes from the mother and father line up on opposite sides of the cell.
In metaphase 1, chromosomes from the mother and father line up randomly along the middle of the cell.
Portions of each chromosome switch sections in the mother’s and father’s chromosomes.
Portions of each chromosome break off and reattach to the original chromosome.

Answers

Answer:

In metaphase 1, chromosomes from the mother and father line up randomly along the middle of the cell.

Explanation:

In diploid (2n) organisms, the homologous chromosomes are the two copies of each chromosome, where one of these homologs is the chromosome from the mother, while the second one is from the father. During metaphase I, the homologous pairs of chromosomes pair together at the middle of the cell. The law of independent assortment, also known as or Mendel's Second Law, states that homologous chromosomes line up in random orientations at the metaphase plate during this period (metaphase I).

Answer:

B

Explanation:

chemical used in afb staining ​

Answers

Answer:

carbol fuchsin, acid alcohol, and methylene blue.

.............

Which two elements are characteristics of autobiographies?
Autobiographies include fictional accounts of a series of events.
Autobiographies are written in the first-person point of view.
Autobiographies are told by an outside observer.
Autobiographies rely on research to tell the story.
Autobiographies share an author’s personal thoughts.

Answers

Answer:

It is b and e

Explanation:

Autobiographies are written in the first-person point of view.

Autobiographies share an author’s personal thoughts.

Answer:

The answer is B. Autobiographies are written in the first-person point of view. And E. Autobiographies share an author’s personal thoughts.

2. The structural and functional unit of life is (a) a cell, (b) an organ, (c) the organism, (d) a
molecule.

Answers

Answer:

A. A cell

Explanation:

Cells are the building blocks of life.

They are the biological units of organisms and are the basic structural and functional units of life.

Cells are the smallest units of life.

During photosynthesis energy from the sun is converted into

Answers

The answer is Nutrients the plant needs
During photosynthesis energy from the sun is converted into glucose, solar energy is harvested as a chemical energy in a process that converts water and carbon dioxide to glucose

What is your opinion on the use of stem cells, obtained from fertilized eggs or early stage embryos

Answers

I believe that it can help in the future. Who knows embryonic stem cells may lead to new, and more effective treatments for serious human ailments and alleviate the suffering of thousands of people!

USE OF STEM CELL:

The first attempts to turn mature cells back into pluripotent stem cells involved a process called cloning. In the cloning process, an egg is fertilized in the lab, and right after fertilization, the DNA is removed from the egg.These stem cells come from embryos that are three to five days old. These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body. This versatility allows embryonic stem cells to be used to regenerate or repair diseased tissue and organs.Despite the potential benefit of using human ES cells in the treatment of disease, their use remains controversial because of their derivation from early embryos.

Learn more:

brainly.com/question/12483864

You have been given three plants: Two have solid black flowers, and one has grey flowers. You cross each black-flowered plant to the grey plant with the following results:
Parents: black #1 X grey F1: 87 solid black, 83 spotted black
Parents: black #2 X grey F1: all black
To try and make sense of these results, you intercross the solid black-flowered F1 plants from cross #2 with the following results in the F2:
132 black
35 spotted black
11 grey
What are the genotypes of the parents, F1 and F2 generations?

Answers

Answer:

The correct answer would be -

F1: #1 black flower plant = Aabb and aabb and #2 = AABB and aabb

F2 = AaBb and AaBb

Explanation:

In this cross, it is the case of the dominant epistasis type of inheritance pattern as Gene A masks the expression of gene B but expresses itself only in presence of b or B.

The ratio of the dihybrid cross change in such inheritance from  9: 3: 3: 1 ratio changes to 12: 3: 1.

Check for the images for cross:

During the New Imperialism nations expanded their empires to

Answers

Answer: To compete with one another

Explanation: pennfoster

A feature of an organism
1.gene
2.mutations
3.cell
4.chromosome
5.Trait

Answers

Laugh out loud I’m not sure sorry I just typing bc I need help for mine sorry again

Answer:

(Not gene)

Explanation:

I was taking a quiz and tried #1 (gene) and it said i was wrong

Which line of defense includes active immunity?
O first
O second
O third
O fourth

Answers

Answer:

The second line of defense.

Explanation:

In our bodies the second line of defense includes active immunity. It contains non-specific immune responses, but yet still contains specific responses for certain things such as inflammatory and fevers.

Third line of defense includes active immunity. The correct option is C.

What are lines of defense?

The first line of defense consists of chemical and physical barriers that are constantly ready to defend the body against infection.

Your skin, tears, sputum, cilia, stomach acid, urine flow, 'friendly' bacteria, and white blood cells called neutrophils are examples of these.

The second line of defense assists administration in effectively managing risk and controls.

Organization develops multiple risk management and compliance functions to assist in the development and/or monitoring of first-line controls.

Immune cells that specifically target antigens are the third line of defense. B-cells and T-cells, all white blood cells, are immune cells that play a role in the third defense line.

Antibodies are produced by B-cells. T-cells aid in the identification of pathogenic cells and the destruction of those cells.

Thus, the correct option is C.

For more details regarding line of defense, visit:

https://brainly.com/question/15026334

#SPJ2

The theory that Evolution results from a slow genetic change in a population is...
A Convergent Equilibrium
B Co - evolution
C Gradualism
D Puncuated Equilibrium

Answers

The answer is B-evolution

How have protozoa typically been classified?

by their type of reproduction

by their symmetry

by their mode of locomotion

by their mode of nutrition

Answers

Answer:

by their mode of locomotion

Explanation:

I'm not too sure but.. :)

Cellular Respiration occurs in which organelle?
a. ribosome
B. golgi
c.nucleus
d.mitochondria​

Answers

Answer:

the answer d. mitochondria

D the “mighty” mitochondria

What do variations of traits have to do with mutations? give an example

Answers


Genetic variations can arise from gene mutations or from genetic recombination (a normal process in which genetic material is rearranged as a cell is getting ready to divide). These variations often alter gene activity or protein function, which can introduce different traits in an organism.

4 points
Objects revolving around the Sun that are too small and too numerous to
be considered planets. *

Answers

Answer:

Asteroids are rocky worlds revolving around the sun that are too small to be called planets. They are also known as planetoids or minor planets. There are millions of asteroids, ranging in size from hundreds of miles to several feet across.

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