What is the definition of the Michaelis-Menten constant, Km, for an enzyme?

Answers

Answer 1

Answer:

Km is the Michaelis-Menten constant which shows the concentration of the substrate when the reaction velocity is equal to one half of the maximal velocity for the reaction. It can also be thought of as a measure of how well a substrate complexes with a given enzyme, otherwise known as its binding affinity.


Related Questions

Can a person keep a ringneck dove and a diamond dove together?

Answers

Answer:

Ringnecks and diamond doves can be kept as pets in a variety of ways. They can be a single bird, bonded to its owner with or without free flight within the home, or they can be a breeding pair, bonded to one another, producing young

The tropical rain forest biome has some of the highest biodiversity on earth how would a decrease in the biodiversity due to deforestation or other factors affect the large biosphere

Answers

Answer:

Negatively.

Explanation:

A decrease in biodiversity can cause a large chain reaction within the ecosystem. A loss of species can be detrimental, especially if they're key stone species. This negative impact can cause the food chain to be disrupted which ends up affecting every organism within the environment. Every organism plays a role within the ecosystem and when one or more are removed it causes extreme disarray.

The decrease in biodiversity due to deforestation and other factors in the tropical rainforest biome will negatively affect the biosphere. Thus, the effect will be negative.

What is the biosphere?

The biosphere also called the ecosphere is the sum of the total life or the ecosystem. It includes the part of the planet where life is inhabitants. It may include a mountain, roots, dessert, oceans, etc. It is interrelated to biodiversity.

If the biodiversity of a place gets declined due to factors like deforestation, pollution, poaching, natural disasters, etc. then it will affect the ecosystem. If the stone species are lost then it will have a detrimental effect on the ecosystem.

These negative consequences disrupt the food chain and will result in affecting every organism. This chain of disruption will cause an overall loss to the biosphere.

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12. Compare and Contrast the relationships between the speed of electromagnetic
and mechanical waves as they travel through different mediums. YOU must
write at least 8 sentences.

Answers

Answer:

Compare and Contrast the relationships between the speed of electromagnetic  and mechanical waves as they travel through different mediums is explained below in details.

Explanation:

As per the mechanism, the waves can be distinguished as electromagnetic and mechanical waves. Electromagnetic waves are those fluctuations that have no mechanism to progress whereas mechanical waves demand a mechanism for their communication. Electromagnetic waves progress in a vacuum whereas mechanical waves don't have.

Which of the following activities occurs in BOTH prokaryotic and eukaryotic cells?​

Answers

Answer:

Cellular Respiration

Explanation:

Both prokaryotic and eukaryotic cells get the energy they need through the process of cellular respiration.

Hopefully this helps! :)

Which organelle is most like a factory delivery driver?.
lysosome
O endoplasmic reticulum
O cytoplasm
nucleus

Answers

endoplasmic reticulum

Answer:

its B               good luck

Explanation:

Removing a specific group of trees within a small area over a long period of time is
a. clearcutting
b. seed tree cutting
C. group selection
d. single tree selection

Answers

Answer:

C. group

Explanation:

Removing a specific group of trees within a small area over a long period of time is group selection. The correct option is C.

What is group selection?

A quantitative definition of group selection is when the average group fitness is greater or less than the mean of the fitness values of the individual members.

Another definition of group selection is when features evolve in accordance with the fitness (survival and reproductive success) of groups.

The conclusion was that although group selection is theoretically feasible, in practice it almost always favors one group over another.

Group selection is the long-term removal of a certain group of trees in a constrained region. In a clearcut, all the trees in a specific region are taken out at once.

The removal of shelterwood cutting clears an area's also clears land cleared for shelterwood cutting, which also involves cutting downing shelterwood cutting, but it is a completes a method of clearing

Thus, the correct option is C.

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Pls help i dont understand :( will give Brainliest + 25 points!!

Answers

Answer:

competition

Explanation:

because one die and the other lives

Your professor describes an aquatic eukaryote that is single-celled, a primary producer, unable to swim on its own, and is structurally resistant. What organism is most similar to the one described by your professor?

Answers

Answer:

The correct answer is - diatom (protist)

Explanation:

The characteristic described by the professor is most similar to the characteristic of aquatic protist - diatoms. Diatoms are the aquatic protist fall into the eukaryotic type of organisms.

These organisms are single-celled and can not swim on their own. They are a primary producer as they do not depends on others for their food and energy and synthesized themselves.

Which statement summarizes the information in the table

Answers

that would be letter C

Include captive breeding, laws and treaties, and habitat preservation

Answers

These activities include habitat destruction, poaching, pollution, and the introduction of exotic species. Three successful approaches to protecting biodiversity are captive breeding, laws and treaties, and habitat preservation. The number of different species in an area.

Mendel developed pure lines of peas for his experiments because he wanted
them to be

A. control groups
B. fast-growing
O C. more productive
D. the same

Answers

Answer:

A

Explanation:

Disadvantages of a light microscope against electron microscope

Answers

Disadvantages. Maximum magnification of 1500x. Specimen may be disfigured during preparation to be viewed under the microscope. The resolving power is 1 nm for biological specimens. Only has a resolution of 0.2 μm - which is relatively poor in comparison to other microscopes. Meanwhile, electron microscopes have a much higher range of magnification (can detect smaller structures), and have a much higher resolution (can provide clearer and more detailed images).

electron microscope have a range of disadvantages as well:

. they are extremely expensive

. sample preparation is often much more elaborate......

. the sample must be completely dry.

. it is not possible to observe moving specimens ( the are dead)

. it is not possible to observe colour.

Which statement reveals a property that can be used to identify a mineral?
A mineral is found in Africa.
O A mineral is made in a laboratory
O Amineral is used to make medicine,
A mineral has hexagonal-shaped crystals.
I think it’s the last one but can someone confirm it

Answers

The statement reveals a property that can be used to identify a mineral is A mineral has hexagonal-shaped crystals.

Which is not a property that can be used to identify a mineral ?

Colour is not a effects that can be used to determine a mineral. Natural occur in, solid, inorganic, and crystalline form, and the exact chemical arrangement , have five properties of a mineral.

Thus, option "D" is correct, having hexagonal-shaped.

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Answer:
Its d

Explanation:
I took the test

Gregory Mendel work was different from that of other researchers working in inheritances in his day because he alone

Answers

Answer:

Most scientists believed that heredity material blended together in offspring, however, Mendel did not. he believed that an organism inherits one gene from each parent and that some alleles are dominant over others. This would mean that they would show up in the phenotype of an organism.

Explanation:

Hope this helps :)

Answer: Gregory wrote a research paper for his English class. His first step was to choose a topic Then he found some background information about his topic. Next, he began looking for relevant sources. He then evaluated them to check their reliability.

Gregory began to write his paper. He used evidence from his research to back up his arguments. Finally, he cited the sources he used.

Explanation:

source: trust me bro

this mannitol salt plate was inoculated with an unknown staphylococcus species. what can you conclude about this unknown organisms

Answers

Complete question: Analyzing Mannitol Salt Agar (MSA): An MSA plate was inoculated with an unknown Staphylococcus species. What can you conclude about this unknown organism?

A. It can ferment mannitol.

B. It produces acid during fermentation, leading to a lower pH in the medium.

C. It can tolerate higher salt concentrations.

D. It could be S. aureus.

E. All the above

Answer: The correct option is E ( all of the above)

Explanation:

Culture medium is a growth medium that is used in microbiology which permits the growth of microorganisms. It can be in a gel or liquid form. There are different types of culture medium which includes:

--> Differential medium

--> Selective medium

--> Enriched medium

Mannitol Salt Agar( MSA) is a type of selective culture media that is used in microbiology for the identification and isolation of staphylococcus species from biological samples. A typical MSA includes essential growth factors and trace nutrients such as nitrogen, vitamins, minerals and amino acids essential for growth. The medium contains sodium chloride( salt) with mannitol which is the fermentable carbohydrate source

Staphylococcus aureus organisms are capable of fermenting mannitol, produces acid during fermentation leading to a lower pH in the medium, and can tolerate higher salt concentrations. Therefore the unknown organism is POSITIVE to mannitol salt agar analysis. Thanks and I hope it helps!

DNA and protein together form a complex called

Answers

they form a complex called chromatin

Answer:

chromatin!

Explanation:

What evidence would indicate a new material has been produced?

A Soot appears on a fireplace after a fire.

A metal spoon gets hot after coming out of a dishwasher.
.
A The hubcap of a car is bent during an accident.

A wire sags when too much electricity passes through it.

Answers

I think the answer would be soot appears on a fireplace after a fire. I hope this helps you out! Good luck!

when a plant is limp ot has lost its water tehough ______if you water ir ir should perk up

Answers

Answer:

A Pothos is what the plant is called

No explanation needed

Answers

I think it’s A I hope this helps!

Which best defines genes?

Answers

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... Alleles are forms of the same gene with small differences in their sequence of DNA bases

Write two differences between the unicellular and multicellular organisms.

Answers

Answer:

1.a unicellular organism has only 1 cell while a multicellular organism has 1 or more cell

2.a unicellular organism is a prokaryotic cell or bacteria, while a multicellular organism is mainly a eukaryote

Explanation:

Answer:

Unicellular organisms are single-celled

Multicellular organisms are multi-celled

Unicellular organisms include bacteria

Multicellular organisms don't include bacteria

Explanation:

Hope this helped!!

Tyson draws a model to show how the particles in a liquid appear.
1
2
Which model (or models) above could be Tyson's drawing of particles in a LIQUID?
O model 1 and model 2
O model 1
O model 1, model 2, and model 3
O model 3
Me

Answers

A liquid is rightly modeled by the diagram in model 1.

States of matter:

There are three states of matter which are;

SolidLiquidGas

Particle motion in the states of matter:

The degree of motion of particles in the three states of matter differs. The particles of matter in a solid are compacted hence a solid has no space between particles. Particles are less compacted in the liquid phase but are very free in the gas phase.

Hence, model 1 must be the correct representation of a liquid.

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Silver (Ag) has 47 protons in each atom. Based on this information, which of the following also describes an atom of silver? A. It has no neutrons. B. It has 47 electrons. C. It has 23 neutrons and 24 electrons. D. It has a total of 94 neutrons and electrons. it science by the way.​

Answers

Answer:

B

Explanation:

It has 47 electrons, as proton number is equal/the same as the electron number (proton number=electron number).

Hope this helps! :)

difference between valley and plateu ​

Answers

Answer:

A valley is a landforms carved by a river where as a Plateu is carved via wind

I WILL GIVE BRAINLIEST Pretend you're riding the bus to school on a very cold and snowy day. List 3 different phases changes you might see along the way.

Answers

If you’re talking about scientific phases you will see
1. precipitation(the snow falling)
2. evaporation(water turning into vapor)
3.melting(snow turning the water)

While riding the bus to school on a very cold and snowy day three different phases changes you might see along the way are mentioned below:

1. precipitation(the snow falling)

2. evaporation(water turning into vapor)

3. melting(snow turning the water)

What is precipitation, evaporation, and melting?

Evaporation is the process in which liquid changes in vapour or gas and it can be easily observed during hot summer days when there is raining and when wet clothes dry in the presence of sunlight. Evaporation is directly proportional to temperature and when rate of evaporation increases the temperature also increases.

Precipitation is the water that is falling from the sky and it occurs when a portion of atmosphere becomes saturated with water vapour.

Melting is the process in which solid is converted into liquid like ice cube converted into liquid water and this is one of the example of melting.

Therefore, the mentioned below are three phases changes :

1. precipitation(the snow falling)

2. evaporation(water turning into vapor)

3. melting(snow turning the water)

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Which statement best explains how the cell membrane helps a cell remove waste? A. Carbon dioxide molecules pass out of the cell through the layer of phospholipids

Answers

Hi you’ve only provided one of the options but I don’t know if this will help. The cell membrane is a Thin flexible barristers that surround all cells. Selectively permeable is some substance to pass across while others cannot. Hopefully that can give you give an idea.

which of the following rock type(s) may be weathered to become sediment and form a sedimentary rock?
A) Igneous rock
B) Sedimentary rock
C) Metamorphic rock
Igneous, Sedimentary and Metamorphic rocks

Answers

Answer: B i believe

Explanation:

C- Igneous , Sedimentary, and Metamorphic rocks.

They can all be eroded / broken down to become sediments.

Question 4 of 5
The box shows the element nitrogen as it appears in the
periodic table.
N
Nitrogen
14.0
Which two parts are needed to make a neutral atom of nitrogen?
O A. Electron clouds with a total of 14 electrons
I B. A nucleus with three protons and four neutrons
C. A nucleus with seven protons and seven neutrons
O D. Electron clouds with a total of seven electrons

Answers

Answer:D & C

Explanation:

What is one defining feature of a prokaryotic cell?


A.cytoplasm surrounds organelles


B.have a cell wall outside plasma membrane


C.organelles are not membrane-bound


D.membrane-bound organelles

Answers

The distinguishing feature of a prokaryotic cell is that it has no nucleus or internal membranes, so unlike eukaryotic cells they contain no membrane bound organelles. - google

Answer:

B. have a cell wall outside plasma membrane

Explanation:

I love memorizing articles on subjects I enjoy to help answer and solve questions like these, this one is from bio.libretexts.org, and I really hope it can help:

"The Prokaryotic Cell;

They do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. Most prokaryotes have a cell wall outside the plasma membrane."

Have a nice day! :)

Help pls i rlly need it?

Answers

C. The nucleus hope this help you!

Answer:

CELL NUCLEUS!!!

Explanation:

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