how do an enzyme and substrate to one another? what is the lock and key model of enzyme function?

Answers

Answer 1
The lock and key model is where the substrate has a specific shape which can fit into the specific shape of the active site of the enzyme, just like how a key has a specific shape which can fit into a specific lock.

In other words, the substrate is complementary (same shape) to a specific enzyme, so the substrate can bind/fit to the enzyme.

Related Questions


How is cytokinesis different in plants and animals?

Answers

Answer:

The main difference between plant cell and animal cell cytokinesis is the formation of new cell wall surrounding the daughter cells. Plant cells form a cell plate between the two daughter cells. In animal cells, a cleavage furrow is formed between the two daughter cells.

Explanation:

Have a great day!

Answer:

In plants a cell plate is formed while in animals, it forms a cleavage furrow

Explanation:

a population undergoing natural selection would see a faster and more dramatic change in allele frequency if the starting generation contained more of the allele being selected against.

Answers

Answer: As the change in allele frequency causes the change in genome of the living organism inside few generations.

Explanation: The effect may leave the organism with the loss of some genes, while it can effect cause the loss of some of the beneficial genes inside the genome of the organism. Along with that the process can also improve the sequence of genes which are abnormal in nature.

Define nutrient and thermal pollution.

Answers

Answer:

Nutrient pollution is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae

Explanation:

Explain the idea of Nature vs. Nurture in your own words.

Answers

Nature vs. Nurture both influence the observed traits of an organism.

The controversy between nature and nurture have been an ongoing discourse for many years. It is believed that the traits of an organism are dependent on genes inherited from the parents. Another school of thought believes that environment alone has the sole influence over the traits of an organism.

However, most scientists today are of the opinion that the influence of nature and nurture are intertwined and they both work together to influence the traits exhibited by any organism.

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where does the carbon for photosynthesis come from

Answers

Carbon Dioxide

Don't ask me how I got it, I just remeber

Ps. Branilist would help a lot

Which planet has a dramatic greenhouse effect, no moons and acid in its' clouds? *
Options are
Mercury
Venus
Saturn
Neptune

Answers

Answer: venus

Explanation: Venus' thick atmosphere traps heat creating a runaway greenhouse effect – making it the hottest planet in our solar system with surface temperatures hot enough to melt lead. The greenhouse effect makes Venus roughly 700°F (390°C) hotter than it would be without a greenhouse effect.

what experiments led to the discovery of dna as the hereditary material?

Answers

Answer:

In the 1920s, Frederick Griffith He was studying two different strains of a bacterium, called R (rough) strain and S (smooth) strain. He injected the two strains into mice. The S strain killed (virulent) the mice, but the R strain did not (non-virulent). Griffith also injected mice with S-strain bacteria that had been killed by heat. As expected, the killed bacteria did not harm the mice. However, when the dead S-strain bacteria were mixed with live R-strain bacteria and injected, the mice died.

Explanation:

which of the following is a tissue?
Bone
Collagen
Cytoplasm
Haemoglobin​

Answers

Answer:

Cytoplasm

Cytoplasm is a tissue

Answer:

c. cytoplasm

Explanation:

which structure is not found in both males and females?

Answers

Answer:

Vestibular gland

I hope this helps

Which of the following correctly indicates the order in which mitosis occurs?

A, B, C, D
B, A, C, D
C, B, A, D
A, C, B, D
Other:______________________________

Answers

Based on my knowledge I would say C, B, A, D

the chromosomes replicate themselves, then they line up at the metaphase plate, then they begin to pull apart to form daughter cells

Which of the statements agrees with the base pairing rules in a DNA strands

Answers

Answer:

the offspring of two parents will have 50 percent of his or her gene's from their mother and the other 50 from their father and the gene's will determine what the child will have like the eye color and hair color shape of their nose and other things that are inherited

Explanation:

Which spheres include the water cycle? (Select all that apply.)
hydrosphere
geosphere
biosphere
atmosphere

Answers

The answer Hydrosphere

All of them include the water cycle

which compound is orgaic

Answers

A compound that has Carbon and Hydrogen

Answer: organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.

should the nation of warring wizards be considered a nation. why or why not

Answers

Answer: no

Explanation:

The nation of Warring Wizards should not be considered a nation because they all live in different places and only 2 of them speak Russian.

When HIV, which causes AIDS, invades the body of a person, that person often develops diseases. These diseases are caused by organisms that usually do not harm people who are not infected with HIV. Explain why the organisms are more harmful to people with HIV than to people without HIV

Answers

Answer:

the HIV virus most at time kill the organisms of the other disease hence reducing the effectiveness of those diseases

MPF stands for mitotic promoting factor and this is a[n)...

A. proto-oncogene
B. oncogene
C. cdk-cyclin complex
D. tumor suppressor gene

Answers

A. should be correct

which structure can be found in both eukaryotic and prokaryotic cells?

Answers

Answer:

cell wall and plasma membrane are found in both bacteria(prokaryotic) and plant (eyokaryotic).i think it was helpful

the salivary glands under the tongue are described as

Answers

Answer:

A tissue in our mouth that produces saliva to help swallow food! :)

Which mineral(s) have a black (or greenish-black) streak? Check all that apply.

sulfur

quartz

magnetite

pyrite

Answers

Answer:

Magnetite and pyrite

Explanation:

Their streaks are black

Magnetite is a mineral with an extremely high iron content. Magnetite is black or brownish-red with a black streak.

Magnetite  - black

Pyrite -- greenish to brownish black.

What is so special about magnetite?Magnetite is a mineral with an extremely high iron content. Magnetite is black or brownish-red with a black streak. On the Mohs hardness scale, it has a hardness of about 6.Magnetite is most commonly used as an iron ore in the production of steel. Other uses include using it as a catalyst in the Haber process to produce ammonia, as a pigment in paints and ceramics, and as magnetic micro- and nanoparticles in a variety of processes and materials.Magnetite is an abundant raw material found in the Mountains and Mountains Caves, as well as the Jellyshroom Cave and Lost River.

To learn more about : Magnetite

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When carbohydrate intake is low, which of the following is most likely to result?

a. Your ur body will starve

b.your body will store more fat

c.your energy will use more energy

d.your body will break down other nutrients for energy

Answers

Answer:

d

Explanation:

e.g protein is used in the absence of carbohydrates

D is the correct answer because in absence of carbohydrates protein is used instead

WIll GIVE BRAINLIEST!!!!

Answers

Answer:

Both A and B

Explanation:

This was on my test today and I got it correct.

HELP I DONT UNDERSTAND THIS
What is the most likely explanation of the data shown below?
A 3 column table with 6 rows. Column 1 is labeled Year with entries 0, 1, 2, 3, 4, 5. Column 2 is labeled Dark moths with entries 50 percent, 59 percent, 68 percent, 80 percent, 95 percent, 100 percent. Column 3 is labeled Light moths with entries 50 percent 41 percent, 32 percent, 20 percent, 5 percent, 0 percent.
a.
There has been a drought in the area that is affecting all life forms.
b.
The population of natural predators of the moths has gotten smaller.
c.
The moths are living in an environment with light trees.
d.
The moths are living in an environment with dark trees.

Answers

Answer:

The correct answer is D. The moths are living in an environment with dark trees.

Explanation:

In general, the data shows the population of light moths increases over time, while the population of light moths decreases to the point it disappeared. This would likely occur if there was an environmental change that allowed dark moths to have survival and reproductive advantage over light moths. This includes if the trees are dark because in this scenario dark moths have a better chance to avoid predators and reproduce, while light moths would have a lower chance to survive because predators can find them easily and this leads to the decrease in light moths population shown in the chart.

Construction of a new road system splits a population of a rare snail species into three sub- populations, J, K and L. Each of these populations is reproductively isolated.
The table shows the sizes of the three populations immediately after the building of the road
and again ten years later. DNA analysis was used to find:
p the relative frequency of the dominant allele of a gene
q the relative frequency of the recessive allele of this gene.
The three areas of habitat remained the same as each other over the ten year
immediately after road building
after 10 years
population p q size
1000 0.52 0.48 100 0.63 0.37 10 0.20 0.80
population p size
J 1000 0.50 K 100 0.49 L 10 0.40
q
0.50 0.51 0.60
Which statements are supported by this data?
Statement 1: Statement 2: Statement 3:
Natural selection is occurring in populations K and L.
The Founder Effect is strongest in population L.
The observed allele frequency changes result from genetic drift.
A. 1, 2 and 3 C. Only 2 and 3
B. Only 1 and 2 D. Only 1

Answers

Answer:

hey(not contact)...to their family since they went away

Explanation:

how do bacteria associated with legumes provide nitrogen to the plant in a usable form
A. they use it in a chemical reaction producing ammonia
B. they make it into air bubbles and release it
C. they dissolve it in water
D. they get it from sunlight ​

Answers

(A) they use it in a chemical reaction producing ammonia.

The liquid part of blood is called ?​

Answers

Answer:

Plasma

Explanation:

How many variables can a scientist change during a scientific investigation?

Answers

Answer:

Three

Explanation:

In three to five sentences, describe the advantages and disadvantages of these maps in modeling mitosis.

Answers

ii am confused blease elaborate

so sorry

What is NOT a characteristic of cell differentiation?

Answers

Answer:

unstable phenomenon

Explanation:

What is unique about active sites?

A: active sites provide cells with energy.
B: active sites are specific to certain substrates (reactants).
C: active sites store the genetic information of cells.

Answers

The Unique feature of Active sites is that active sites are specific to certain substrates (reactants)

Active sites are specific regions of an enzyme where substrate molecules bind in other to bring about a chemical reaction.

The active site is made up of amino acid which forms temporary bonds with the substrate otherwise known as the binding site and the residues which brings about a reaction of that substrate.

Active sites are specific to certain substrates (reactants). Therefore, option (B) is correct.

Active sites are vital to enzymes, proteins that aid biological processes. They have a distinctive form that matches their substrate molecules. This specificity allows only particular substrates to bind to and interact with the active site, catalysing processes. This is called the "lock and key" or "induced fit" model.

Enzymes' catalytic action depends on active sites. A substrate attaches to an enzyme's active site and changes conformation, lowering the reaction's activation energy. This speeds up the reaction. After the reaction, the products are released and the enzyme's active site can bind to another substrate. Therefore, option (B) is correct.

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2. Which organisms make carbon dioxide in the
atmosphere available for all living organisms in
the ecosystem?

Answers

Answer:

land plants, bacteria, and algae

Explanation:

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