The lock and key mechanism refers to

Answers

Answer 1
Enzymes
Enzymes have an active site where the substrate meets. This is where and how products are broken down. The break down of substrates through the use of enzymes is referred to as the lock and key model. Hope this helps

Related Questions

The Serengeti region of Africa contains a population of cheetahs and a population of lions. Studies have shown that the cheetah population has very low genetic diversity, while the genetic diversity of the lion population is quite high. The cheetah population is also much smaller than the lion population. Both populations are vulnerable to infection with a particular virus that can be fatal in both species. What is the most likely outcome if both populations are infected with this virus?

A.
The cheetah population is more likely to survive because there are fewer individuals for the virus to attack.
B.
The lion population is more likely to survive because larger populations are immune to viruses.
C.
The cheetah population is more likely to survive because lower genetic diversity increases immunity to viruses.
D.
The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.

Answers

Answer:

D. The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.

Explanation:

Since lions have greater genetic diversity it is likely that there's one or two lions that have a trait to resist or kill the virus thus won't be infected, whereas, since cheetah's have low genetic diversity and low population size it is likely that they have little to no chance to surviving this virus attack since the genetic makeup is similar among the members of cheetah species.

Answer:

d

Explanation:

plato

which of these forms when moves in the directions shown by the arrows in the diagram

Answers

Answer:

A. Mountain breeze

Pls give 5 stars and thanks!

Answer:

a

Explanation:

What most directly causes hypertension?

Answers

Answer:

hypertension is caused by stress and salt intake

The most common causes of hypertension include smoking, obesity or being overweight, diabetes, having a sedentary lifestyle, lack of physical activity, high salt or alcohol intake levels, insufficient consumption of calcium, potassium or magnesium, a deficiency in vitamin D, stress, aging, chronic kidney disease

During the process of mountain building, earthquakes sometimes occur along continental-continental convergent boundaries. Which statement best describes the motion of the plates along these boundaries that causes the earthquakes?

Answers

Answer:

Although you have not put the answer options, the movement of the plates in the situation shown above occurs with the approach of their continental plates that collide and bend due to the impact.

Explanation:

The converging movement of the plates indicates that two plates are moving towards each other until they collide. When these two plates are continental, the movement is called continental-continental convergent.

As the two continental plates have the same density, the impact between the two causes them to bend and not sink into each other.

Answer:

D) the plates smash together with no subduction

Explanation:

Got it right!

A _____ model places Earth at the center of the solar system, with the Sun and planets revolving around Earth. A. scale B. geocentric C. heliocentric

Answers

Answer:

B. Geocentric

Explanation:

Geo means Earth, and centric means "in the center". So a geocentric model of the solar system would mean the Earth were at the center of the solar system, with the Sun and planets revolving around the Earth.

Answer:

geocentric model

In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under the geocentric model, the Sun, Moon, stars, and planets all orbited Earth.

Hope this helps!

The gluten-free diet was originally intended for people with celiac disease, but it's now become a new fad diet for the general population. Many people state that gluten-free diets are beneficial for people who aren't sensitive to gluten, while others suggest that there's no benefit. Use credible resources to evaluate the argument yourself. Do you think there's sufficient scientific evidence to support the use of a gluten-free diet in people who aren't sensitive to gluten? Provide evidence that supports your argument.

Answers

Answer:

hey love! so i actually have celiac so i know a lot about this haha! hope this helps!!

Following a gluten-free diet in the absence of celiac disease may be detrimental to health. Nutritional deficiences: Avoiding foods that contain gluten can lead to deficiencies in essential nutrients, including iron, calcium, fiber, folate, thiamin, riboflavin, and niacin.

Explanation:

In recent years, the gluten-free diet has become more of a fad than a medical necessity. ... The study concluded that more gluten consumption is associated with a lower risk of heart disease, suggesting that those who do not suffer from celiac disease or non-celiac gluten/wheat sensitivity should not avoid gluten. Though many health professionals suggest otherwise, it's safe to follow a gluten-free diet — even for people who don't necessarily need to do so. Cutting out wheat and other gluten-containing grains or products will not cause adverse health effects — as long as these products are replaced with nutritious foods.

Answer:

Explanation:

There’s no benefit to a gluten-free diet for people who aren’t sensitive to gluten. Many websites state benefits of a gluten-free diet. These benefits range from weight loss to improved heart health. None of these sites backed up their claims with scientific research. More credible sites consistently state that there’s no scientific research to back up these claims. Right now, there’s no evidence that supports the benefits of a gluten-free diet in people who aren’t sensitive to gluten.

А (blank)
is a chemical substance that organisms require to live.​

Answers

Answer:

Nutrient

Explanation:

Nutrients are compounds in foods which are essential to life and health of living organisms, providing them with energy. They are the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients:

Carbohydrates,Lipids (fats),Proteins,Vitamins,Minerals,Water.

As a muscle I am responsible for regulating leaving teh body

Answers

Answer:

The digestive system is in charge of squeezing energy and nutrients out of all that ... Anus: The place where solid waste exits the body.

Can seaweed help curb global warming?

Answers

Answer:

no.......................................

Answer:

yessss

Explanation:

hahhahhaha

zoom in to see

define the ratio of sperm to egg?

Answers

Answer:

1,2 × 10⁹ : 1

Explanation:

In fact, the average male will produce roughly 525 billion sperm cells over a lifetime and shed at least one billion of them per month. A healthy adult male can release between 40 million and 1.2 billion sperm cells in a single ejaculation.

Explanation:

Therefore, a standard sperm to egg ratio of 1 × 105 sperm per egg is recommended for fertilization in Atlantic cod. At the 1 × 103:1, 5 × 103:1, and 1 × 104:1 sperm to egg ratios maximum fertilization occurred after 30 min sperm to egg contact time.

hope it helps : d please mark me brainliest

So how you liking Earth? Are you loving your existence ?​

Answers

No, not really. I'm only here because I need points so ask a question for school.

Answer:

CHING CHONG CHINKY WONG

Explanation:


Who first suggested the theory of evolution by natural selection?
O A. Charles Darwin
B. Wilhelm Weinberg
C. Gregor Mendel
D. Thomas Malthus

Answers

Charles Darwin!
Darwin and a scientist contemporary of his, Alfred Russel Wallace, proposed that evolution occurs because of a phenomenon called natural selection.

Charles Darwin first suggested the theory of evolution by natural selection.  Therefore, option (A) is correct.

Who was Charles Darwin?

Darwin was a British naturalist who conducted extensive research and observation during his travels around the world, and his work culminated in the publication of "On the Origin of Species" in 1859. In this seminal work, Darwin proposed that species evolve over time through a process he called natural selection, which involves the differential survival and reproduction of individuals with advantageous traits.

This theory challenged the prevailing view of species as unchanging, fixed entities and revolutionized the field of biology. While Darwin was not the first to propose the idea of evolution, his theory of natural selection provided a mechanism to explain how it occurs and remains one of the most important and influential ideas in the history of science.

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What is the main function of the structure labeled A?


It attracts insects and other animals.
It moves the pollen to the ovaries.
It catches pollen.
It produces pollen.​

Answers

Answer:

D

Explanation:

I did the assignment

The main function of the structure labeled A is it produces pollen. Therefore, the correct option is D.

What is a pollen?

Pollen is a microscopic, powdery substance produced by the male reproductive organs of seed plants. It is made up of cells that contain the male gametes (reproductive cells) and is responsible for fertilizing the female reproductive cells (ovules) to produce seeds.

Pollen is often carried from one plant to another by wind, insects, or other animals, where it can then come into contact with the female reproductive organs of a different plant.

If the pollen comes into contact with a receptive ovule, it can fertilize the ovule and produce a seed. Therefore, the correct option is D.

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The question is incomplete, but most probably the complete question is,

What is the main function of the structure labeled A?

A. It attracts insects and other animals.

B. It moves the pollen to the ovaries.

C. It catches pollen.

D. It produces pollen.​

Contrapposto is defined as:
O a photographic print process using gum Arabic.
an asymmetrical arrangement of the human figure.
a German term to denote devotional images used to aid prayer.
diagonal lines the recede into fictive space.

Answers

Answer:

an asymmetrical arrangement of the human figure.

Explanation:

Contrapposto is an Italian term and it is use in visual art to describe

an asymmetrical arrangement of the human figure in which the line of the arms and shoulders contrasts with and balances the line of the hips and legs. It was an important sculptural development,it unveiling marks the first time in Western art that the human body is used to expression of relaxed physiological disposition.

The primary way in which toddlers play is
A. dramatic play.
B. exploration.
C. art.
D. block building.

Answers

Answer:

D

Explanation:

The right a exploration

The stems of horsetails contain:

A. spores
B. utensils
C. silica

Answers

The answer is C) Silica

Which statements accurately describe carbon? Check all that apply.
Carbon has fourteen valence electrons.
Carbon forms millions of known compounds.
Carbon can only form single covalent bonds.
Carbon bonds with oxygen, nitrogen, sulfur, and phosphorus.
O Carbon bonds with halogens such as chlorine and iodine.​

Answers

Answer:

B, D, E

Explanation:

Just did it on edge 2020

Carbon is the element with the atomic number six. It can form millions of known compounds and can bond with nitrogen, phosphorus, oxygen, and sulfur, as well as halogens. Thus, options B, D, and E are correct.

What are carbons?

Carbon is studied under carbon chemistry and is the major part of organic chemistry. It is an element in the periodic table with the atomic number six and a mass of 12 amu.

The carbon is known to be unreactive and can form a covalent bond by sharing its four valence electron. It can form bonds with oxygen, sulfur, nitrogen, and phosphorus.

It can also bond with halogens like chlorine and iodine to form carbon tetrachloride by sharing its valence electron in its outer shell to form the compounds.

Therefore, options B, D, and E. carbons links with various elements through covalent bonds.

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PLSSS HELPPP MEEE WITH THIS QUESTIONNNNN NO GUESSING PLSSSS
Which process is shown in the plant cell below?

A= cell growth
B= cell reproduction
C= metamorphosis
D= photosynthesis

Answers

the answer is B = cell reproduction

The given process shown in the image is cell reproduction. Cell reproduction takes place by mitosis and meiosis.

What is cell reproduction?

Mitosis and meiosis are the two distinct processes of cell division. When people talk about "cell division," they typically mean mitosis, which is the process of creating new cells for the body. The cell division process known as meiosis is what produces egg and sperm cells.

A vital process for life is mitosis. A cell divides into two identical daughter cells after duplicating all of its components, including its chromosomes. Due to the importance of this procedure, specific genes carefully regulate each phase of mitosis.

Meiosis, the second sort of cell division, makes sure that each generation of people has the same number of chromosomes.

Therefore, The given process shown in the image is cell reproduction. Cell reproduction takes place by mitosis and meiosis.

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which statement best describes how genes are able to produce a organism's traits?

Answers

Answer: Genes come in pairs which are passed down by the parents'. Both parents pass on one copy of their genes to create a gene for the child; this will later create a trait.

Is there lipids in tofu

Answers

Answer:

NOPE

Explanation:

2. In the example of the white and brown mice, vultures will prey on both colors of mice. However, in
the desert environment, the brown mice are better able to hide from their predators and have an
advantageous trait. What will happen to the color of mice over time?

Answers

Answer:

The brown color of mice would become more common in the population of the mice in the desert overtime

Explanation:

In the mice population, since the environment favors the individuals with brown fur color over individuals with white fur color, as it makes them better able to escape from predatory vultures, white mice gets eaten more often. With time, the population of white mice reduces while that of brown mice increases.

Overtime, brown mice leaves more offspring with its trait compared to white mice. As a result of this, the color mice that would be more common in the desert environment would be mainly brown colored mice, while white mice would be few.

What does an unstable isotope give off that a stable isotope does not?

Answers

Answer:

An unstable isotope emits some kind of radiation, that is it is radioactive. A stable isotope is one that does not emit radiation,

Explanation:

Many elements have one or more isotopes that are radioactive. These isotopes are called radioisotopes. Their nuclei are unstable, so they break down, or decay, and emit radiation. The nucleus may be unstable because it has too many protons or an unstable ratio of protons to neutrons.

Explain the central dogma of molecular biology. please don't define it or state what it says.

Answers

Answer:

The central dogma of molecular biology is an explanation of the flow of genetic information within a biological system. it is often stated as "DNA makes RNA, and RNA makes protein", although this is not its original meaning.This states that once "information" has passed into protein it cannot get out again.

Explanation:

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Which type of selection leads to increased phenotypic and genetic variation? directional selection disruptive selection stabilizing selection species selection

Answers

Answer:

diruptive selection/ diversifying selection

Explanation:

disruptive selection often leads to more variations in species

The circumstance that concludes whether the organism will be able to accommodate and endure in the changed conditions is called selection.

The correct answer is:

Option B. Disruptive selection.

This can be explained by:

Disruptive or diversifying adaptation occurs when there is a change in population genetics in which the traits are valued over intermediates.

This type of assortment supports either the dominant or the recessive trait but do not favour intermediates.

For example, in selection between tall, short or intermediate organisms the tall and short will be selected over the medium heightened organism.

Therefore, disruptive selection will lead to increased phenotypic and genetic variation.

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For children who do not have galactosemia, what are their possible genotypes for this trait?

a pedigree chart for the inherited genetic condition galactosemia

heterozygous
homozygous dominant
homozygous recessive
no inheritance for this trait

Answers

Answer:

The correct answers are "heterozygous", and "homozygous dominant".

Explanation:

Galactosemia is a condition where people are not able to process the sugar galactose. People with this condition have one gene mutated, which does not allow the proper synthesis of the enzyme that breaks down galactose. Galactosemia is inherited as an autosomal recessive genetic condition, therefore, only children that are homozygous recessive develop the condition. Children that are heterozygous or homozygous dominant, will not develop galactosemia.

Answer:

its heterozygous and homozygous dominant

Explanation:

The extract of which gymnosperm seed is used to help improve memory?

Answers

Answer:

Ginkgo

Explanation:

Ginkgo improves memory and enhance circulation and metabolism in the brain.

Answer:

ginkgo

Explanation:

ginkgo seed is used to help improve memory

state two proteins in blood which are responsible for determine the blood group of a person​

Answers

Answer:

DNA

Explanation:

A person DNA determines the type of enzymes they have, and, therefore, the type of sugar antigens that end up on their red blood cells . In contrast , the antigens of the Rh blood group are proteins . A person DNA holds the information for producing the proteins antigens

How are glaciers, glaciation and human activities relate to climate change or global warming

Answers

Answer:

The Production of C02 Co2 is an greenhouse gas and will go up into the atmosphere to heat it if the atmosphere is gaining to Much C02 it will heat up therefore Glaciers Will melt under the increasing heat a

why is nectar important for insects?

Answers

Answer:

Nectar is important for insects because.. Nectar is an ecologically important item, the sugar source for honey. It is also useful in agriculture and horticulture because the adult stages of some predatory insects feed on nectar. For example, the social wasp species Apoica flavissima relies on nectar as a primary food source. In turn, these wasps then hunt agricultural pest insects as food for their young.

If there are 3 ft in 1 yd, which of the following are possible conversion factors for feet and yards? Check all that apply

Answers

Can u pls attach the answers so I can help? :))

Answer: 1yd over 3ft and 3ft over 1yd ( a and d)

Explanation: ….

Other Questions
All of the following trees are found in the North Central Plains exceptA.elm treesb. oak treesc.cherry treesd hickory trees Consider the following quadratic equation: 25x2=36 Using the standard form ax2+bx+c=0 of the given quadratic equation, factor the left hand side of the equation into two linear factors. define the ratio of sperm to egg? This is a math question plz try you best Effluents from metal-finishing plants have the potential of discharging undesirable quantities of metals, such as cadmium, nickel, lead, manganese, and chromium, in forms that are detrimental to water and air quality. A local metal-finishing plant has identified a wastewater stream that contains 5.15 wt% chromium (Cr) and devised the following approach to lowering risk and recovering the valuable metal. The wastewater stream is fed to a treatment unit that removes 95% of the chromium in the feed and recycles it to the plant. The residual liquid stream leaving the treatment unit is sent to a waste lagoon. The treatment unit has a maximum capacity of 4500 kg wastewater/h. If wastewater leaves the finishing plant at a rate higher than the capacity of the treatment unit, the excess (anything above 4500 kg/h) bypasses the unit and combines with the residual liquid leaving the unit, and the combined stream goes to the waste lagoon.(a) Without assuming a basis of calculation, draw and label a flowchart of the process. (b) Waste water leaves the finishing plant at a rate m_ 1 ? 6000 kg/h. Calculate the flow rate of liquid tothe waste lagoon, m_ 6?kg/h?, and the mass fraction of Cr in this liquid, x6(kg Cr/kg). (c) Calculate the flow rate of the liquid to the waste lagoon and the mass fraction of Cr in this liquid for m_1 varying from 1000 kg/h to 10,000 kg/h in 1000 kg/h increments. Generate a plot of x6 versus m_ 1 .(Suggestion: Use a spreadsheet for these calculations.) (d) The company has hired you as a consultant to help them determine whether or not to add capacity to the treatment unit to increase the recovery of chromium. What would you need to know to make this determination? (e) What concerns might need to be addressed regarding the waste lagoon? The number of seconds, t it takes for an object to fall a distance of d meters can be found using the formula t=2dg, where g is the constant acceleration due to gravity, 9.8msec2. How many meters does an object fall in 5 seconds? Round your answer to the nearest whole number. Ram baked 946 cupcakes she sold them in a box of 22 for $16.50 a box how many boxes would she need to make at least $300? Gold can be separated from sand by panning or by a sluice-box. In panning, water is mixed with the sand and the resulting slurry is swirled in a shallow, saucer-shaped metal pan. In the sluice-box technique, running water is passed over an agitated sand- gold mixture. What physical property and what technique make this separation possible? What is a unit rate?A) a rate with one in the numeratorB) a rate in which the numerator and the denominator are equalC) a rate with one in the denominatorD) a rate in which the denominator is greater than the numerator Write the polynomial which represents the perimeter of a triangle whose sides are representedby 2x + 3x, 5x-1, and 3x + 7x-1. Please help me with my question!! Coronado Company's record of transactions concerning part X for the month of April was as follows. Purchases Sales April 1 (balance on hand) 420 0 $7.30 April 5 620 4 720 7.45 12 520 11 620 7.74 27 1,440 26 520 8.18 30 520 8.47Compute the inventory at April 30 on each of the following bases. Assume that perpetual inventory records are kept in units only. (1) First-in, first-out (FIFO). (2) Last-in, first-out (LIFO). (3) Average-cost. (Round final answers to 0 decimal places, e.g. 6,548.) Which chart is good for showing the following? For each part, choose the most appropriate chart from the charts listed. - trends over time - cross tabulation - the relationship among 3 quantitative variables - the relationship between 2 quantitative variables - frequency distribution of quantitative data - show differences in numbers across categories A. column or bar chart B. line chart C. heat map D. clustered column or bar chart E. bubble chart F. scatter chart G. histogram what is the theme of the poem the self-unseeing please help with this Which part of this excerpt from President Barack Obamas remarks on the Buffet rule uses the logical fallacy of false dilemma? plz try your best do not quess Select the correct answer.Where should the RUN-ON SENTENCE be divided?1Mary and Joe were going out they wanted 2 to see 3 a movie.A.1B.2C. 3 When firms in a perfectly competitive market face the same costs, in the long run they must be operating a. under diseconomies of scale. b. with small, but positive, levels of profit. c. at their efficient scale. d. where price is equal to average fixed cost. Which of the following is the correct factored form of the given equation?4x2 - 11x + 6 = 0(2x + 3)(2x + 2) = 0(2x - 3)(2x - 2) = 0(4x - 3)(x - 2) = 0