What is the lock and key theory of enzyme-substrate binding?

Answers

Answer 1

Answer:

Quick Reference. A theory to explain the mechanism of enzymatic reactions, in which it is proposed that the enzyme and substrate(s) bind temporarily to form an enzyme–substrate complex. The binding site on the enzyme is known as the 'active site' and is structurally complementary to the substrate(s).


Related Questions

Is made to represent a real object or system
Map
Chart
Table
Line graph
Model

Answers

The answer is Model. Hope this helps!!

Why do different individuals of the same species have different traits?
OA. Individuals have differences in their genes that result in protein variations.
OB. Individuals have proteins that produce genes with completely different functions from other individuals.
OC. Individuals have different proteins that cause variations among their genes.
OD. Individuals have different genes that produce proteins with completely different functions from other individuals.

Answers

answer : a

explanation : a species shares ALMOST all of the DNA with each other with just small differences

Different individuals of the same species have different traits because individuals have differences in their genes that result in protein variation. Hence, option A is correct regarding variation.

Why do individuals of different species exhibit different characteristics?

The species is a group of individuals that can reproduce among themselves and can produce fertile offspring. Individuals of a species have genetic variation among them as they are formed by the process of meiosis.

In meiosis, genes cross over and recombination takes place, resulting in the formation of offspring that show some variation from their parents. These characters or traits are encoded in the gene. When these are expressed in the process of translation, the variation is seen.

This genetic variation doesn't make them reproductively isolated. Example: In humans, there are variations based upon the skin color, face size, height, etc. The variation is seen in genes among individuals but not genes are different.

Hence, different individuals of the same species have different traits because individuals have differences in their genes that result in protein variation. Hence, option A is correct regarding variation.

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The theory of spontaneous generation held that living could arise from nonliving matter and that such processes were commonplace and regular. Observe Pasteur’s experiment. Does his experiment support or weaken the idea of spontaneous generation?

Answers

Answer:

It weakened the idea of spontaneous generation

Explanation:

I had this question on my test last week

which is not an example of a molecule?
a)NCI3
b)O3
c)H2O2
d) F

Answers

The answer for that is C
I believe the answer is c

Specific proteins produced in a cell are directly related to the A. Number of mitochondria in the cell. B. Sequence of sugars and phosphates in the cell. C. Type of ribosomes in the cell. D. Sequence of nucleotides in the DNA of the cell.

Answers

Answer:

D. Sequence of nucleotides in the DNA of the cell.

Explanation:

Proteins are a type of biomolecules in living systems responsible for many phenotypic characteristics in organisms. Proteins are synthesized by a process called gene expression, which encompasses transcription and translation.

Using the central dogma of biology to trace, DNA (genes) contains information that encodes the production of proteins in the body. Therefore, the sequence of nucleotide bases in the DNA of a cell determines the sequence of mRNA that will be produced during transcription and ultimately, determines the specific type of proteins (amino acid chain) that will be produced in a cell during translation.

30 POINTS!! Type one to two paragraphs describing the full water cycle. Be sure to use full sentences and proper grammar.

Answers

Answer:

      The water cycle is the way that all water chases after as it moves Earth in various states. Fluid water is found in seas, streams, lakes—and even underground. Strong ice is found in icy masses, day off, at the North and South Poles. Water fume—a gas—is found in Earth's air.

        The water cycle, otherwise called the hydrologic cycle or the hydrological cycle, depicts the constant development of water on, above and underneath the outside of the Earth. There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection. Let's look at each of these stages. Evaporation: This is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas).

Explanation:

How were Redi’s and Pasteur’s experiments different?
A. Redi studied broth, but Pasteur tested meat.
B. Pasteur studied flies, but Redi tested meat.
C. Pasteur tested for microorganisms, but Redi studied larger organisms.
D. Redi tested for microorganisms, but Pasteur studied larger organisms.

Answers

Answer:

C. Pasteur tested for microorganisms, but Redi studied larger organisms. that is the correct answer i promise

Explanation:

Identify the labeled structures.
A:
B:
C:
D:
A
E:
lables: cell wall, chloroplast, cytoplasm, endoplasmic reticulum and lysosome

Answers

A endoplasmic reticulum
B chloroplast
C lysosome
D cytoplasm
E cell wall

Answer:

A: D

B: B

C: E

D: C

E: A

Explanation:

cell differentiation is most directly regulated by​

Answers

ATP because if ur difference gets the cell by others then it will directly hit ATP making the microscopic version very big

Which of the following can be used to move a sperm cell?
A. flagella
B. cell wall

Answers

Not sure but I’m pretty sure it’s flagella

Answer:

A.flagella

Explanation:

the flagella is the organelle  that moves the  cell

plz mark me as the brainliest

Section I: Experimental Overview


Use your answers from questions 1–3 as the basis for the first section of your lab report. This section provides your reader with background information about why you conducted this experiment and how it was completed. Outline the steps of the procedure in full sentences. It also provides potential answers (your hypothesis/es) relative to what you expected the experiment to demonstrate. This section should be 1–3 paragraphs in length.



Section II: Data and Observations
Use your answers from questions 4–5 as the basis for the second section of your lab report. This section provides your reader with the data from the experiment, in a summarized and concise way. No paragraphs are required for this section, but you do need to include the key data and observations from which you will generate your analysis and discussion. This section is objective.

Section III: Analysis and Discussion
Use your answers from questions 6–8 as the basis for the third section of your lab report. This section provides your reader with your interpretation of the data set. You will also give an example of any calculations or formulas you used to analyze your data. Also, you will want to include any graphs that you made and interpret them for the reader.
If you did construct graphs, your Student Guide included information on which graphs to construct. Graphs should have the following:

a. Appropriate titles
b. Appropriate labels for each axis
c. Appropriate scales for each axis
d. Correct units for the data

Complete a rough sketch of each graph. Explain in one or two sentences what trend the reader should observe in each of your graphs.
Mention any problems, unusual or unexpected data, or other factors with the experiment here, and suggest possible causes. This section can be somewhat subjective, unlike Section II, because you are free to include your personal interpretations or even speculation if it adds constructive, reasonable insight to the discussion.
This section is variable in length, and should likely be the longest part of your report.

Section IV: Conclusions
Use your answers from questions 9-11 as the basis for the fourth section of your lab report. In this section you will summarize the outcome of the experiment, and discuss how the original hypothesis(es) was (were) either supported or refuted. Use logic and reason in explaining your statements, and be sure to refer to specific data from your experiment that supports your argument.

This section also demonstrates your understanding of the experiment, through your ability to offer constructive criticism about its design and make suggestions for future experimentation. There are always ways that experiments can be improved. Now that you are a veteran of this experiment and have experience with the procedure, offer some advice to the next scientist about what you suggest and why.

This section should be 1–2 paragraphs long.

Overall
When complete, the lab report should be read as a coherent whole. Make sure that you connect different pieces with relevant transitions. Review for proper grammar, spelling, punctuation, formatting, and other conventions of organization and good writing.

Answers

Answer:

The main purpose of this lab is to perform different experiments and the importance of the topic is that it supports the essayś thesis statement.

Explanation:

Thatś the answer :)

A lab report gives a description of the aim of the experiment, the materials used, the procedure followed, the results obtained, and any conclusions made.

What is a lab report?

A lab report is a report of work done in a laboratory experiment.

The laboratory experiment may be to prove or disprove a hypothesis.

A laboratory experiment answers a question logically through a series of steps.

Therefore, in a lab report, the aim of the experiment, the materials used, the procedure followed, the results obtained, and any conclusions are recorded.

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which gender has a higher heart rate?

Answers

Answer:

Females

Explanation:

The average adult male heart rate is between 70 and 72 beats per minute, while the average for adult women is between 78 and 82 beats. This difference is largely accounted for by the size of the heart, which is typically smaller in females than males. :)

List the celestial bodies from smallest to largest based on their actual size.
Plzzzzzzzzzzz give me the correct answer ASAP

Answers

Answer:

Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter.  Is smallest to largest.

Explanation:

Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter Is smallest to largest.

What are celestial bodies?

A celestial object is an observable cosmic phenomenon that happens naturally. The terms "object" and "body" are frequently used synonymously in astronomy.

A celestial object, on the other hand, is a complex, less cohesively bonded structure that could include numerous bodies or even other objects with substructures, as opposed to a celestial body, which is a single, tightly bound, adjoining entity. Space objects like the Sun, planets, moons, and stars are referred to as celestial bodies or heavenly groups.

They are normally quite far away from us and are a part of the vast cosmos we inhabit. Such objects are scattered throughout the majestic night sky, and when viewed through a telescope, they reveal intriguing worlds of their own.

Therefore, Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter Is smallest to largest.

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With respect to energy, Earth is a........
closed system
Integrated system
layered system
open system

Answers

Closed system because I used safari for 5 minutes!

Identify 3 uses of ATP in a cell

Answers

Answer:

ATP is consumed for energy in processes including ion transport, muscle contraction, nerve impulse propagation, substrate phosphorylation, and chemical synthesis

Explanation:

Adenosine triphosphate (ATP) is a small molecule that acts as a coenzyme within a cell.

The main role of ATP is to provide energy. Below are the ways it provides energy which can described in an exam.

1) A source of energy.

2) An ATP molecule releases approximately 30kJ (mol^-1) of energy

3) Energy from an ATP molecule is released in small quantitites to prevent damage to the cell

4) Energy released is used for metabolism in the cell. Other reactions that require energy from ATP include; active transport/ muscle contraction/ glycolysis.

what is fart? explain and what do you call it?

Answers

Answer:

Farts — also called flatus (say: FLAY-tuss) or intestinal (say: in-TESS-tuh-null) gas — are made of, well, gas! When you eat, you don't swallow just your food. All of these gases in the digestive system have to escape somehow, so they come out as farts! Gases are also what can make farts smell bad.

Marcia places her plant near the window she waters the plant every day what will happen to the plant after one week. A it’s leaves and flowers will stay the same. B it’s leaves and flowers will grow toward the floor
C it’s leaves and flowers will grow toward the light in the window
D it’s leaves and flowers will grow away from the light in the Window

Answers

Answer: C

Explanation: Wherever the sun is, the plants will lean/follow

Answer:

The answer would be

C.) it's leaves and flowers will grow toward the light in the window.

Explanation:

What makes producers so unique compared to other organisms in any ecosystem?

A. They are the only organisms capable of capturing energy

B. They are the only organisms that are green

C. They can recycle nutrients and water.

D. They can take energy from other organisms.​

Answers

A

Producers get their energy from non-living resources

We can take out D

Of course, B is not it.

Now, we have either A or C.

Producers capture energy from sunlight, this means its A.

The answer should be D

.... is an example of what extrusive rock. *
gabbro
basalt
Granite
diamond

Answers

Basalt is an example of what extrusive rock.

Explanation:

Extrusive igneous rocks form when magma reaches the Earth's surface a volcano and cools quickly. Most extrusive (volcanic) rocks have small crystals. Examples include basalt, rhyolite, andesite, and obsidian.

Traditional chemotherapy drugs target cell processes that then halts cell division or results in cell death. Thus, these drugs are cell poisons, causing multiple side effects. List some of the cell processes that these Drugs often target

Answers

Answer:

Cell division

Replication

Explanation:

Traditional chemotherapy drugs target cell metabolic processes which enabled it to thrive under certain conditions and then halts such processes such as cell division or results in cell death.

Thus, these drugs are cell poisons, causing multiple side effects. Some of the other cell processes that these cells target also include replication and motility.

Which of the following best describes how meiosis helps maintain genetic variation?

A) meiosis replaces mutated genes with normal ones before creating new cells
B) meiosis exchanges genetic material between homologous chromosomes
C) meiosis produces new nuclear membranes before the second cell division
D) meiosis replicates chromosomes twice before the cells undergo cell division

I thought it would’ve been d but I guess not

Answers

Answer:

i believe its C

Explanation:

Which of the following contains all the rock, soll, lava and magma found on
Earth

A) Geosphere
B) Atmosphere
C) Hydrosphere

Answers

Answer:

Geosphere

Explanation: geo means earth

Answer:

Geosphere

Explanation:

A glucose molecule is to carbohydrates as a ___ is to nucleic acids.

Answers

Answer:

nucleotides

Explanation:

glucose is a monomer of carbohydrates so we just have to figure out what the monomer for a nucleic acid is.

As a Nucleotide is to nucleic acid

The number of chromosomes that result from mitosis is _____.

the same as original cell
double the original cell
half of the original cell
none of the above

Answers

it would be the same as original cell.

Answer:

Hello! This answer would be the same as original cell!

Explanation:

I really hope this helps!


Which is the region of actively dividing
cells at the tip of the stem?

Answers

Answer:apical meristem

Explanation:

What process do plants use to remove carbon dioxide from the air?
nitrogen cycle
water cycle
photosynthesis
respiration

Answers

Plants use photosynthesis to remove carbon dioxide from the air.

Answer:

Photosynthesis

Explanation:

What is a component of amino acid not contained in starch?

Amino acids contain hydrogen.

Amino acids contain nitrogen.

Amino acids contain oxygen.

Amino acids contain carbon.

Answers

Answer:

Amino acids contain nitrogen.

Who experimented with oil and water layers in 1917

Answers

Answer:

Figure 1. Benjamin Franklin of Philadelphia, L.L.D., F.R.S., in between 1763 and 1785, during the period when he carried out his experiments of oil on water

Explanation:

Answer:

benjamin franklin

Explanation:

because i aint never seen two pretty best friends, its always one of em gotta be ugly

Which question can be used to evaluate reliability of a source?

“Do these results support the author's own opinion?”

“Is this data challenged by anyone in the public?”

“Is this research relevant to me?”

“Who was paid to do this research?”

Answers

Answer:

Do these results support the Author's own opinion?

Explanation:

The question can be used to evaluate the reliability of a source is Do these results support the author's own opinion?

In sources (books, articles, etc), reliability implies the information of a source can be trusted. This occurs if:

All the information is based on factsThe information is not manipulated by the author's opinion or interests

In this context, it is expected the information of the source is objective rather than influenced by the author's opinion. Therefore, one way to check the reliability of a source is "Do these results support the author's own opinion" because if the information is manipulated by a personal opinion, the source is not reliable.

Also, other questions are not appropriate because they are related to other aspects such as relevance, not reliability.

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You are standing by a cliff far away from the ocean. You see a sedimentary layer
with shells in it. You are told the shells are from oceanic organisms. How do you
think this layer formed?

Best answer gets brainliest!

Answers

Answer:

oldest layer on the bottom and newest on the top

Explanation:

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7. Elijah's puppy weighs 35 ounces. If he weighed 19 ounces at the last visitto the veterinarian's office, what is the percent increase in the puppy'sweight rounded to the nearest whole number? Find the value of 4x-6y when x=3 and y=-2 Can anyone find the simplest radical form Choose the correct statement about values.A) Values are beliefs that are important to you.B) Values change as goals change.C) Values change depending on your situation.D) Values are the beliefs you get from your friends.Please help I'll mark BRAINLEST ! Which of the following expressions are equivalent?Your answer:(5*4)*1=5+(4*1)5+(1+3)= (5+1) +35-(1-3)=(5-1)-35 2= 2 5 What was one effect of women being denied the right to speak at abolition rallies?Women stopped campaigning against abolition.Women focused on the temperance movement.Women met to improve their domestic skills.Women began to fight for more equal right The burning and cutting of the trees will affect the carbon cycle by adding___________ to the atmosphere in the case of burning the trees and by not removing enough __________ from the atmosphere in the case of cuting the trees. Helppppp I have one hour until its due!!!! the united states v. nixon limited the president's power to What unbalanced force is needed to give a 976 kg vehicle an acceleration of 2.50 m/s2? ASAP any body know about the Fredonian Rebellion?Research & Tell me about Fredonian Rebellion. On which continent is the Fertile CrescentMesopotamia? Please give the right answer Which of the following is NOT indicated by the direction of the arrows in a food chain?A. The direction of the flow of energy.B. The amount of food each animal eatsC. The fact that plants start every food chain.D. Which animals are predators. 1. What is the most likely form for this piece?A. LiedB. Character pieceC. Symphonic poemD. Concerto grosso 2. In what period was the piece above likely written? A. Baroque B. Classical C. Romantic D. Twentieth/Twenty- First Century A right-angled triangle has one side of length 1.5 cm. Its hypotenuse is 6 cm. How long is its other side? the summary of Oliver twist help meee will mark brainliest Ryan achieved an 89% on the same multiple choice test. He answered some questions correctly, left at least one blank andgot at least one wrong answer. He also got some possible points for extra credit. Give one possible answer combination of thequestions Ryan could have answered on the multiple-choice test. The animals are cold and hungry but what do they still have