What is activation energy?

A.
energy required by the substrate to fit into the active site

B.
energy supplied by enzymes in a chemical reaction

C.
energy released when reactants combine to become products

D.
energy required to break the chemical bonds of the reactants

Answers

Answer 1
the energy required to break the chemical bond of the reactants
Answer 2
Final answer:

Activation energy is the energy required to break the chemical bonds of the reactants in a chemical reaction.

Explanation:

The correct answer is D. Activation energy is the energy required to break the chemical bonds of the reactants in a chemical reaction. It is the minimum amount of energy needed for a reaction to occur. Activation energy acts as a barrier that the reactant molecules must overcome to undergo a reaction and form products. For example, when wood is burned in a fire, activation energy is needed to break the bonds between the carbon and hydrogen atoms in the wood and allow them to react with oxygen to produce carbon dioxide and water vapor.

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Related Questions

Which biome is an animal with thick fur best suited for

Answers

the arctic/polar biome
hope it helps

An animal with thick fur is best suited for tundra biome.

Tundra biome is a flat and treeless arctic biome that is characterized by low temperatures and very short growing seasons. The climate of the tundra biome is very harsh, windy and extremely cold for most part of the year. Animals with thick fur are best suited for tundra biome. The thick fur of animals is a special adaptation that functions as an insulator protecting animals from the harsh climate in the environment. The thick fur helps animals to retain their body heat, keeping them warm and reducing heat loss. Examples of animals with thick fur that can be found in the tundra biome include; Polar bear, Tundra and Arctic Wolves and Musk Oxen.

The addition of a phosphate group to a substrate is called ________. the enzyme that catalyzes this reaction is referred to as a ________

Answers

phosphorylation
kinase

The addition of a phosphate group to a substrate is called Phosphorylation. the enzyme that catalyzes this reaction is referred to as a kinase.

What is Phosphate group?

A protein kinase phosphorylates an amino acid residue by adding a covalently bonded phosphate group, which is a reversible post-translational alteration of proteins.

Protein phosphatases catalyze the process of dephosphorylation, which is the opposite of phosphorylation. Protein kinases and phosphatases control how proteins function by acting independently and cooperatively.

Serine, threonine, and tyrosine are the amino acids that are most often phosphorylated in eukaryotes. Prokaryotes and plants also frequently phosphorylate histidine (though it is now known to be common in humans).

Therefore, The addition of a phosphate group to a substrate is called Phosphorylation. the enzyme that catalyzes this reaction is referred to as a kinase.

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With no herring to eat how might the eating habit of cod change

Answers

Cod would to find a new food source which would result them to eat more squid. I hope this helped, Enjoy the rest of you're day!

Drew has musically talented grandparents and great-grandparents. in addition to having musical genes, drew is raised in a musically enriched environment. he develops into a talented composer. which branch of psychology would explain this interaction between genetics and environment?

Answers

The branch of psychology that explains the interaction between genetics and environment on our behavior is Behavioral Psychology. This interaction is most commonly referred to as Nature vs Nurture. In this case, Drew's behavior is influenced by both his genetic make up and his environmental details.

If fish are caught faster than they can breed, what will happen to the population?

Answers

The fish won’t be able to repopulate so the population will decrease
If this keeps on going fish will be extinct

What did Mendel do that made his predictions so accurate?



PLEASE HELP!!!

Answers

by studying various pea plants

Obstruction of the trachea by a piece of food can lead to:

Answers

Obstruction of the trachea by a piece of food can lead to: asphyxiation

PLEASE HELP ME !!!!!!!!!
How do the light reactions provide energy for the dark reactions?
(Be sure to name any important molecules that are used)

Answers

Dark reactions make use of these organic energy molecules (ATP and NADPH). Thisreaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy while NADPH provides the electrons required to fix the CO2 (carbon dioxide) into carbohydrates.
Well the water molecules connect to the light molecules and then when that happens the water molecules cover the light and makes a dark reaction

Nucleic acids _____.

are the largest of the four main biological macromolecules
determine whether an organism is a bacterium, tree, mouse, or human
are the building blocks of proteins
consist of DNA and RNA

Answers

I would believe the correct responses would be option 1,2,4.
answer choices 1,3,4 are correct

________________ is/are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. ________________ is/are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. cytokines kinins histamine prostaglandins

Answers

Kinins are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. The kinins are polypeptides that as blood components generate various mediators and many cardinal manifestations of inflammation.

What was one of the ways thy people of ancient times classified plants and animals

Answers

The correct answer is: By using dichotomous.


I hope my answer benefites you! c:

The mutation resulting in sickle cell disease changes one base pair of dna so that a codon now codes for a different amino acid, making it an example of a ________.

Answers

The mutation resulting in sickle cell disease changes one base pair of DNA so that a codon now codes for a different amino acid, making it an example of a missense mutation. Missense mutation is the mutation characterized with changes in one base pair so that the whole amino acid is changed.

Proteins are long chains of amino acids, but they don’t stay as just long winding chains. What happens to their shape and why? Explain

Answers

The instruction for how they will fold their 3D shape is encoded in their unique amino acid structure. This will occur because both bonding between the peptide backbone or secondary structure as well as many kinds of covalent and non-covalent interaction between the tertiary structure or the side chains.
Final answer:

Proteins fold into three-dimensional shapes after synthesis due to various chemical interactions within the protein and the properties of the surrounding cellular environment. This process is crucial because the shape significantly determines a protein's function. Misfolding could cause dysfunctional proteins and lead to diseases.

Explanation:

After proteins are synthesized as long chains of amino acids, they do not remain as linear structures but rather fold into specific three-dimensional shapes. This process, called protein folding, is crucial because the shape of a protein determines its function within an organism. Factors like chemical interactions within the protein, the protein’s sequence of amino acids, and the surrounding environment of the cell, contribute to the protein folding pattern. The bonding and interactions between the amino acids within the protein, such as hydrogen bonds, ionic bonds, and van der Waals interactions, lead the protein to take on a stable structure, which is often a 3D shape, like a globular or fibrous form. Misfolding of proteins can lead to the dysfunction of the protein, resulting in diseases like Alzheimer's or Cystic fibrosis.

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A first-time mother informs the nurse that she is unable to breastfeed her newborn through the day as she is usually away at work. she adds that she wants to express her breast milk and store it for her newborn to have later. what instruction would be correct to offer the mother to ensure the safety of the stored expressed breast milk?

Answers

Breast milk must be stored in the fridge or freezer in order to avoid pathogens in the milk. Breast milk stored at room temperature for long periods of time can spoil and present an unsafe food source for the baby. Breast milk that is frozen will remain safe for a longer period of time than it would in the fridge. Do not use breast milk that has been in the fridge for several days.

Describe the process of diffusion, including a detailed explanation of equilibrium.

Answers

Diffusion is a process of desintegration or disolution. Equilibrium is where all states are equal. Equilibrium works here too, but too many invisible forces drag it into chaos. Equilibrium means less invisible chaos.

The brain and its surrounding structures fill the ____________ cavity.

Answers

your answer is cranial cavity 

The area of the skull where the brain is housed is known as the cranial cavity or intracranial space. The term “cranium” refers to the skull without the mandible.

What is main function of cranial cavity in brain?

The meninges, the cerebrospinal fluid, and the brain are all housed in the cranial cavity. The brain's main job is to provide information to the body's other organs and help them work together as a whole.

The tentorium is shown here. Tentorium cerebelli is the name of the organ. It divides the cerebrum, which is located above the cerebellum, from the rest of the cranial cavity.

The neurocranium, which in humans includes the skull top and creates the protective cover around the brain, is made up of eight cranial bones that together constitute the hollow.

Therefore, cranial cavity that surround the brain.

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A permanent increase in size and dry mass is known as what

Answers

A permanent increase in size and dry mass is known as growth. Growth is not to be confused with the word development, which typically means an increase in complexity. When someone or something experiences growth, it becomes larger. However, the growth does not necessarily have to be permanent. For example, if you get an ear piercing infection, it can cause your ear to swell/grow. When the infection goes away, your ear will shrink/go back to its regular size.

What chemical is responsible for the initial breakdown of carbohydrates?

Answers

Carbohydrate molecules are broken down into smaller particles during digestion. Carbohydrate digestion starts in the mouth. The saliva in the mouth contain an enzyme called ptyalin. Ptyalin acts on the carbohydrate portion [starch] in the food and cause the initial breakdown of carbohydrate in the mouth.
Thus, PTYALIN is responsible for the initial breakdown of carbohydrates.

n an attempt to save money, the lunchroom staff sent out student questionnaires to see which foods students preferred. Once they knew students preferences, the lunch room staff would prepare the most popular foods, thereby reducing waste. Based on the student questionnaire data, what inference can the lunchroom staff make? A) Most students bring their lunch from home. B) Pizza is the favorite food of about one-third the students. C) All students would prefer to eat pizza over any other food. D) Students have no preferences regarding the food they eat for lunch.

Answers

Answer:

B

Explanation:

Pizza is the favorite food of about one-third the students.

In an attempt to save money, the lunchroom staff sent out student questionnaires to see which foods students preferred, and it was found that pizza was the favorite food of about one-third of the students who chose Option B.

What exactly is food waste?

The food is important for the animals as well as plants and other living individuals as it gives them energy when cells use the food in cellular respiration, and based upon the energy most of the work is done, such as body repair, cell division, growth, etc. As the population grows, the rate of food cultivation cannot keep up to feed everyone, so food waste must be avoided so that everyone gets the required amount of food.

Hence, in an attempt to save money, the lunchroom staff sent out student questionnaires to see which foods students preferred, and it was found that pizza was the favorite food of about one-third of the students who chose Option B.

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The question is incomplete, the complete question is here

Favorite Lunch Entrees Pizza 35%, Nachos 26%, Other 16%, Mystery Meat 14%, 'Fried Blue Jay 9%, In an attempt to save money, the lunchroom staff sent out student questionnaires to see which foods students preferred. Once they knew students preferences, the lunch room staff would prepare the most popular foods, thereby reducing waste_ Based on the student questionnaire data, what inference can the lunchroom staff make?

Most students bring their lunch from home:

Pizza is the favorite food of about one-third the students

All students would prefer to eat pizza over any other food

Students have no preferences regarding the food they eat for lunch:"

The mark of sexual maturation for a boy that is most comparable to menarche for a girl is

Answers

Deepening of the voice.

Final answer:

The mark of sexual maturation for a boy that is most comparable to menarche for a girl is spermarche, the first ejaculation, marking a significant milestone in a boy's puberty, usually around 13 to 14 years old.

Explanation:

The mark of sexual maturation for a boy that is most comparable to menarche for a girl is spermarche. Menarche marks the onset of menstruation in girls, typically occurring around the ages of 12 to 13 years old, and signifies a key point in sexual maturation and the ability to reproduce.

Similarly, spermarche, the first ejaculation, represents a comparable developmental milestone in boys, usually happening around 13 to 14 years old. This event indicates that the male's body is starting to produce viable sperm, marking a significant step in sexual maturation.

Both menarche and spermarche are influenced by various factors, including genetics, diet, and overall health, and they signify the body's entry into reproductive capability. While the onset and pace of these developments can vary widely among individuals, they are central components of puberty that signal the maturation of the body's reproductive organs.

Most starch stored in cells of a potatoe is composed of molecules that originally entered cells as

Answers

Most starch stored in cells of a potato is composed of molecules that originally entered cells as Simple sugars.

I hope this helps!

Answer: Sugars

Explanation:

The process by which the plants make food is photosynthesis. This is done in order to produce carbohydrates which is in the form of glucose when formed.

The potato is stored form of starch in the plant body. The sugars in the plants is first used then it is stored in the plant body for further use.

The starch in the plant body is stored at different places in the plant body. In the roots, stems and flowers.

All these were in the form of sugar in the plant body just after photosynthesis.

In long term why is it important to reduce demands for timber

Answers

The correct answer is

A.

Lower demand will prevent large increases in timber prices

The skeletal system offers support for the body, but it also offers protection. Explain how the position of the skeletal system in the body supports this

Answers

       Examples of skeletons protecting the body are, the rib cage for the heart and lungs, and the pelvis for the nerves in the lower body. Your spinal chord has bone to protect to protect the sensitive nerves inside.

Answer:

The skeletal systems runs through virtually the entire body, allowing it to support the body and absorb shock during motion. However, it also protects several vital organs. The pelvic bones surround the internal reproductive structures and lower abdominal organs, the ribcage protects the digestive system, lungs, and heart, and the skull surrounds the brain.

plato answer

Explanation:

Which characteristic of the genetic code lowers the likelihood of mutation?

Answers

Degeneracy

Degeneracy simply means that most of the amino acids produced during protein synthesis from DNA is coded by more than one codon. A codon is a sequence of 3 nucleotides that codes for a specific amino acid.

Because more than 1 codon can produce the same amino acid, the chances of having the synthesis of proteins affected by mutations (i.e. point mutations) is decreased. For example, if the codon with the nucleotide series GAA, which codes for the amino acid glutamate, becomes the codon GAG, the codon will still produce glutamate because the code is degenerate. 
Final answer:

Degeneracy of the genetic code is a key characteristic that reduces the negative impact of mutations by allowing similar amino acids to be encoded by multiple codons, which differ by only one nucleotide, thus maintaining protein functionality.

Explanation:

Characteristic of the Genetic Code That Lowers the Likelihood of Mutation

One characteristic of the genetic code that reduces the likelihood of mutation having a negative impact is degeneracy. Degeneracy means that multiple codons can code for the same amino acid. Often, these codons differ by only a single nucleotide. If a mutation occurs, changing one of these nucleotides, the amino acid coded for might remain the same, or it might change to a similarly behaving amino acid. This aspect of the genetic code helps maintain protein functionality despite mutations. Additionally, amino acids with similar chemical properties tend to be encoded by similar codons, which further helps to conserve protein structure and function in the event of mutations.

Moreover, the genetic code is unambiguous and universal, which are additional important characteristics that illustrate its robustness. Each codon corresponds to one specific amino acid (or a start/stop signal), and this unambiguity prevents confusion during protein synthesis. The universality of the genetic code across all known living organisms highlights a shared evolutionary origin and ensures consistency in how genetic information is translated into proteins.

One of the first recorded uses of forensic entomology being used in a criminal case happened in what time period?

900 BCE
1000 AD
1850s
1970s

Answers

THe 1850s is the most logical answer

The first recorded use of forensic entomology in a criminal case is said to have occurred in 1235 AD. Hence, the correct option is B.

This historic event happened in a Chinese text titled The Washing Away of Wrongs by Song Ci, which describes how an investigation determined which farm implement killed a person by observing which one attracted flies. Though none of the options provided in the question accurately match this historical event, the question may be referring to a commonly cited example of forensic science application in history, emphasizing the long-standing relationship between law enforcement and the study of insects.

What type of cells can go through a cell membrane

Answers

Oxygen is a small molecule and it's nonpolar, so it easily passes through a cell membrane...Please mark brainliest....
Two types of cells can pass through the cell membrane. Those two are the nonpolar and small polar molecules.

​​​which food item is likely to be most acceptable to a child?

Answers

rubber or plastic cutlery are most likely to be most acceptable for a child, spoons are less dangerous and come in different colors and shapes so childs can get familiar with them and start the learning eating process by themselves, then they are presented with the fork, which also comes in different shapes and colors, this will complement the training for the infant.

Is a molecule that brings amino acids to the ribosome during translation. __________ is a molecule that brings amino acids to the ribosome during translation. mrna t-rna rrna dna?

Answers

Messenger RNA is a molecule that brings amino acids to the ribosome during translation mrna t-rna rrna dna.
It is a molecules which carries the coding sequences for protein synthesis and are called transcripts. Ribosomal RNA (rRNA) molecules molds the core of a cell's ribosomes and move RNA (tRNA) molecules that carry amino acids to the ribosomes throughout protein synthesis.

Final answer:

Transfer RNA (tRNA) is a molecule that brings amino acids to the ribosome during translation by recognizing the codons on mRNA and matching them with the correct amino acid.

Explanation:

Transfer RNA (tRNA) is a molecule that brings amino acids to the ribosome during translation. tRNA recognizes the codons on mRNA and matches them with the correct amino acid. It has an anticodon on one end that complements the codon on the mRNA, and a binding site for a specific amino acid on the other end.

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A pregnant woman at 22 weeks' gestation is diagnosed with gonorrhea. the health care provider (hcp) prescribes doxycycline. what should the nurse do first?

Answers

Gonorrhea is an STD affecting anything related to throat, rectum and private body parts. Doxycycline is an antiobitic curing bacterial or protozoan infections. As for gonorrhea, CDC recommends a dose of ceftriaxone with 250g first, then 100mg of doxycycline or 1g of azithromycin orally twice a day for 7 days.
There are two ways of taking Doxycycline, directly ingesting the capsule or by opening the capsule and administering with applesauce. Due to its ability to cause abrasion in the esophagus, it should be taken with at least eight ounces of fluid. With the applesauce, it is important that the nurse measures the contents and ensure that the patient drinks the full glass of fluids.

The function of tunica externa is to ________.

Answers

The tunica externa (New Latin "outer coat"), also known as the tunica adventitia (New Latin "additional coat")(or adventitia for short), is the outermost tunica (layer) of a blood vessel, surrounding the tunica media. It is mainly composed of collagen and, in arteries, is supported by external elastic lamina.
to protect and/or reinforce the blood vessels  
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Pls help!!! Quick question!!!Which of the following is a difference between rotation and translation?A. Rotation has a reference point, while translation does not.B. Translation has a reference point, while translation does not.C. A rotation body moves around an internal or external axis, but a translating body does not.D. A translation body moves around an external axis, but a rotating body moves around an internal axis. Which sentence uses humor in this excerpt from Charles Farrar Browne's "Interview with President Lincoln"? Why did astronomers initially think that millisecond pulsars were very young? What is a geographic advantage asokas forces had against the kalingans? The calendar as we know it today was first developed by the___dynasty.A. Zhou, B. Han, C. Shang, D. Tang, if MN = PQ AND PQ = RS then MN = RS You take a trip by air that involves three independent flights. if there is an 76% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? Can someone help me with 2 and 4 the ratio of girls to boys in the math club was 3.5. if there were 120 children altogether, how many girls were there? PLZ HELP A vegetarian diet is, in many ways, healthier than the average American diet. Blank Space __________, adopting a vegetarian diet helps conserve the valuable resources that our future depends on. What transitional word best completes the passage? Question options:1.Furthermore2.Because3.Instead4.For example Where is the kinetic energy GREATEST? A packet of biscuits has a mass of 1 1/3 kg. Jason eats 2/5 of the packet. What is the mass of biscuits left? Which characteristic is common in young rivers? A. A steep stream. B. Many tributaries. C. Location far from headwaters. D. A wide. U shaped channel How does a representative government BEST serve the purpose of constitutional government?A) Voting members make decisions at every level of government. B) One representative in government controls most aspects of voting members' lives. C) The government chooses representatives who will represent the will of the people. D) Voting members choose candidates who they believe will represent their issues in government. Can someone please just explain what I need to do? I'm so confusedThe length of a text messaging conversation is normally distributed with a mean of 10 minutes and a standard deviation of 4 minutes. What is the probability that a conversation lasts longer than 20 minutes? Heather purchased an iPad mini on sale 20% off for 263.20 what's the original price of the iPad mini What are key words that help narrow your research when using a search engine?-and, or, but-but nor,and-or, not, and-and, but, not In sexual reproduction, parental _______ fuse to form a daughter cell.A. GenesB. DNAC. GametesD. None of the above Two descriptions about physical quantities are given below: Quantity A: It has the same unit as force. Quantity B: It measures the amount of matter in an object. What quantities are these most likely describing? Both Quantity A and Quantity B are mass. Both Quantity A and Quantity B are forces. Quantity A is weight and Quantity B is mass. Quantity A is mass and Quantity B is weight.I don't think it is b or d. which of the following are examples of matter? select all correct answers a. heat b.sunlight c.water d. grass e. air Steam Workshop Downloader