Chymotrypsin catalyzes the hydrolysis of peptide bonds adjacent to _____ residues in a peptide.
A. neutral polar
B. nonpolar
C. negatively charged
D. positively charged
E. all of the above since chymotrypsin has little substrate specificity
Answers
Chymotrypsin catalyzes the hydrolysis of peptide bonds adjacent to "nonpolar" residues in a peptide. This is because chymotrypsin has a hydrophobic binding pocket that specifically recognizes nonpolar amino acid residues such as phenylalanine, tryptophan, and tyrosine.
The hydrolysis reaction:
The hydrolysis reaction is catalyzed by the active site of chymotrypsin, which contains a "carboxyl" group that acts as a nucleophile to attack the carbonyl carbon of the peptide bond, forming a covalent acyl-enzyme intermediate. This intermediate is then hydrolyzed by water to release the products, which include a "peptide" fragment and a free "amino acid".
Chymotrypsin catalyzes the hydrolysis of peptide bonds adjacent to nonpolar residues in a peptide. This enzyme specifically targets peptide bonds next to large, hydrophobic amino acids, such as phenylalanine, tryptophan, and tyrosine. These amino acids have nonpolar side chains, allowing chymotrypsin to recognize and cleave the peptide bonds more efficiently.
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Related Questions
As the train rushed down the hill, gravitational potential energy was converted into kinetic
energy.
Which piece of evidence best supports the claim?
A. The speed of the train increased as the height of the
train decreased
B.The people in the train felt like they were being
pushed down at the bottom of the hill,
C.The train kept moving when it reached the flat part of
the track
Answers
Answer:
A. The speed of the train increased as the height of the
train decreased
Explanation:
All of the following organs assist in the digestion of lipids except the:
A) liver
B) large intestine
C) gallbladder
D) pancreas
Answers
Answer:
d
Explanation:
Large intestine do not assist in the digestion of lipids.
Main function of large intestine is to absorb.The large intestine turns food waste into stool and passes it from the body.What are the function of lipids in the body?Within the body, lipids function as an energy reserve, regulate hormones, transmit nerve impulses, cushion vital organs, and transport fat-soluble nutrients. Fat in food serves as an energy source with high caloric density, adds texture and taste, and contributes to satiety.To know more about large intestine here
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5. When crossed with the genotype AaBb, which genotype would result
in a 50% chance of producing offspring with the alleles AA?
Answers
When crossed with genotype AaBb, genotype that would result in 50% chance of producing offspring with alleles AA is : genotype AaBb.
Which genotype would result in 50% chance of producing offspring with alleles AA?If two individuals, one with genotype AaBb and another with genotype AaBb, cross, the offspring produced will have a 50% chance of having the alleles AA (homozygous dominant). This is because each parent contributes one allele for each gene to the offspring, and there is an equal probability of either the dominant or recessive allele being passed on.
In this cross, half of the offspring will have the dominant allele A from both parents, while the other half will have the recessive allele a from one parent and the dominant allele A from the other parent. Thus, the genotype of the offspring will be Aa in 50% of the cases, and AA in the other 50% of the cases.
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I need help like right now please
Answers
Which terms best complete the chart about characteristics of human development between fertilization and birth? Stages of Human Gestation First trimester Second trimester Third trimester - Embryo develops - Organs begin to develop - (1) - Starts swallowing - Fat begins to develop - (2) - All organs are developed - Can hear and see - (3)
Answers
Answer:
Im doing the unit test and i believe the answer is C
Explanation:
It makes the most sense if you have studied.
The stages of human gestation and their time duration are given below:
First trimester: After conception to 12 weeks.Second trimester: Between 12 to 24 weeks. Third trimester: Between 24 to 40 weeks. What do you mean by Fertilization?Fertilization may be defined as a biological event that occurs by the fusion of male and female gametes successfully to produce a zygote.
The embryo develops after four to five weeks of conception which is the first trimester, organs initiate to develop by the end of the first trimester.
Swallowing is initiated at the beginning of the second trimester, and all organs are completely developed by the initiation of the third trimester. While all senses of hearing and seeing are developed by the middle of the third trimester.
Therefore, each trimester is characterized with its own functionality.
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(HELP NEEDED ASAP WILL GIVE BRAINLIEST) After analyzing the radon table above. Which taxon level do all three organisms also NOT have in common?
-Class
-Family
-Order
-Species
Answers
An entity used for classification is a taxon (plural taxa). Species, genera, families, orders, classes, phyla (in animals), divisions (in plants), and kingdoms are examples of taxa at various levels of the hierarchical structure, in that sequence.
What is a taxon example?Taxon is the name for a certain hierarchy level used to categorise living things. An entity used for classification is a taxon (plural taxa).Species, genera, families, orders, classes, phyla (in animals), divisions (in plants), and kingdoms are examples of taxa at various levels of the hierarchical structure, in that sequence. Kingdoms are found at the top of a hierarchy, whereas species are found at the bottom. So each included group can be referred to as a taxon (rank). Generic groups are made up of genera, which are made up of families, which are made up of orders, which are made up of orders, and so on.Mangifera indica's Taxonomic TreeMangoliopsida is a suborder of the kingdom plantae.Magnoliophyta as the classAnacardiaceae Family, Order: SapindalesMangifera, genusSpecie: indica.To Learn more About taxon Refer To:
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Are all living things made of cells?
Answers
Answer: Yes, All living organisms or things like animals or plants are made of cells.
Explanation:
why is it impossible to completely sterilize the human skin
Answers
It is impossible to completely sterilize the human skin due to the presence of natural microbiota. The skin is the largest organ in the human body, and it is covered by a diverse microbial community, which includes bacteria, fungi, and viruses. This community is collectively known as the skin microbiome.
The skin microbiome plays an essential role in maintaining skin health by protecting against pathogens, regulating immune function, and preventing infection. Attempts to completely sterilize the skin can disrupt this delicate balance and cause damage to the skin's barrier function.
Although it is impossible to completely sterilize the skin, good hygiene practices such as regular hand washing and avoiding sharing personal items can help reduce the risk of transmitting harmful microorganisms. Additionally, medical professionals use various antiseptic techniques to minimize the risk of infection during invasive procedures such as surgery.
Overall, the natural microbiota of the skin makes complete sterilization impossible, but proper hygiene practices can help minimize the risk of infection.
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In the diagram below of a human skeleton, what is the name of the bone
labeled K?
O A. Tibia
OB. Femur
C. Fibula
D. Humerus
bib Coge
Vertebra
B
Carpals
Metacarpals
Phalanges
C
D
E
Cranium
G
H
K
Tarsals
Metatarsals
Phalanges
Answers
The part labelled K is called from the skeleton image, the femur. Option B
What is the skeleton?
The skeleton, also known as the skeletal system or the bony framework, is the internal framework of the human body that provides support, structure, and protection. It is composed of bones, cartilage, ligaments, and tendons.
The human skeleton consists of approximately 206 bones that are classified into two main categories: axial skeleton and appendicular skeleton. The axial skeleton includes the skull, vertebral column, and ribcage, while the appendicular skeleton includes the bones of the limbs (arms and legs), shoulder girdle, and pelvic girdle.
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What two things does the circulatory system carry to muscle cells during exercise so they can make energy?
Answers
Answer:
nutrients and oxygen
Explanation:
mangrove trees live in swamps and saline coastal waters. these are harsh conditions in which aerobic respiration in the roots is difficult. one of the adaptations of mangrove trees to their environment is vertical roots called pneumatophores that grow upward out of the mud and water to function as the site of gas intake. what gas will be absorbed by pneumatophores?
Answers
For them to thrive in salty and flooded circumstances, mangroves have various special adaptations. Physical stability is the basic goal of adaptations.
What activity takes place during both aerobic and anaerobic cellular respiration?In the process of glycolysis, glucose is converted into pyruvic acid without the aid of an external electron acceptor like oxygen. Both aerobic and anaerobic species share it because it takes place in the cytoplasm of the cell.
During aerobic respiration, what will be created?When glucose and oxygen interact during aerobic cellular respiration, ATP is created that the cell can use. As byproducts, water and carbon dioxide are produced.
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Scientific knowledge is always changing. At one time, the kingdom was the
highest level of
classification. Today, the highest level of classification is the domain. Two of
the domains, Bacteria and Archaea both contain microscopic prokaryotic
organisms. What would be the best reason for scientists to separate the
prokaryotes?
A)There were too many species of prokaryotes to only have 1 domain for them.
B)It was determined that neither have chloroplasts.
C)Both organisms do not contain organelles.
D)Research showed differences in living environments.
Answers
Answer:
d
Explanation:whater
Research showed differences in living environments is the best reason for scientists to separate the prokaryotes. Therefore, option (D) is correct.
What are prokaryotes?The organisms known as prokaryotes lack a nucleus and other organelles in their cells. There are two distinct groups of prokaryotes: the archaea and bacteria, both of which are thought to have evolved along distinct evolutionary lines.
Prokaryotic organisms or prokaryotes are organisms that lack a true nucleus and membrane-bound cell organelles. Mycoplasma, cyanobacteria, and bacteria are all examples of prokaryotes.
A prokaryotic cell carries out every one of the fundamental roles that an ordinary cell performs. Reproduction, respiration, digestion, and other biological processes are among their capabilities.
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PLEASEEE HELP!!! Can someone please help me with this question
Answers
Answer:
The answer is
Explanation:
The particle is a virus because it has genetic information and can infect humans.
Hope this helps....
Have a nice day!!!!
Answer:
A
Explanation:
please help:((((((((((((((((
Answers
Answer:
a Lil something you can do to help you out with
Answer:
the chlorophyll
Explanation:
The element carbon has three natural isotopes: C-12, C-13, and C-14.
Use the periodic table to find the number of protons in a carbon atom.
Then make a drawing to show the nuclei of the three carbon isotopes.
Your drawing should convey the number of protons and neutrons in each of the three different nuclei.
Answers
Answer: See Below
Explanation:
1. There are 6 protons in a carbon atom (The # of protons is the same as the atomic number).
2. Attached below. Red circles are protons blue are neutrons.
Understand that the number following the C (12,13,14)
refers to the total number of protons and neutrons in the atom. Proton number does not change only neutrons can.
Which best explains how the collisions of materials in space contribute to the formation of layers in protoplanets? The materials undergo decay when they collide, which results in the heating and subsequent melting and rising of materials. The collisions release heat, which results in the heating and subsequent melting, sinking, and rising of materials. The materials undergo decay when they collide, which results in the cooling and subsequent hardening and sinking of materials. The collisions absorb heat, which results in the cooling and subsequent hardening and rising of materials.
Answers
Answer:
The collisions release heat, which results in the heating and subsequent melting, sinking, and rising of materials.
Explanation:
The collisions literally release heat (kinetic energy). Energy from collision increased temperature, causing materials to melt.
The statement which best explains how the collisions of materials in space contribute to the formation of layers in protoplanets is: B. The collisions release heat, which results in the heating and subsequent melting, sinking, and rising of materials.
Accretion can be defined as the accumulation of coastal sediment, sand or land mass on a tectonic plate at a subduction zone over time.
Protoplanets refers to a large collection of matter within a giant cloud of gas and dust in orbit around the sun and developing into a planet.
Hence, a protoplanet is a large planetary embryo in its early stages of evolution through accretion.
Basically, the collisions of coastal sediment, sand or land mass in space contribute to the formation of multiple layers in protoplanets through a process called accretion.
Heat is typically generated through the collisions of materials in space and it subsequently melts, sinks and causes the materials to rise, which forms multiple layers in protoplanets.
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Which of the following statements is false?
A. Disruptions in an ecosystem are normal and natural changes.
B. Disruptions in an ecosystem are only caused by tornadoes, hurricanes, and floods.
C. Disruptions in an ecosystem are caused by both human activity and environmental disturbances.
D. Ecosystems are complex, interactive systems that include both biotic and abiotic components of the environment.
Answers
Answer:B
Explanation:
Common sense ♀️
Answer:
c
Explanation:
humans can also disrupt the ecosystem as well as natural causes
Does the human body contain minerals?
How/why/when,?jk
Answers
Answer:
Yes
Explanation:
Yes, the human body does contain minerals. Minerals are essential nutrients that the body needs to function properly. They are present in many foods, such as fruits, vegetables, and grains, and are also found in the water we drink.
There are several types of minerals that are important for the body, including:
Calcium: important for strong bones and teeth
Iron: helps the body produce red blood cells
Sodium: helps regulate blood pressure
Potassium: helps regulate the balance of fluids in the body
Magnesium: involved in hundreds of chemical reactions in the body
Zinc: involved in immune function and wound healing
It is important to get enough minerals in your diet to ensure that your body functions properly. If you are not getting enough minerals, it can lead to deficiencies that can cause various health problems.
I hope this helps! Let me know if you have any other questions or need further assistance.
Which is the best date variety must be refrigerated after harvest because of its high sugar content? Tamar Zahidi Thoory Black Sphinx Question 2 2 pts Which of the following statements about dates is FALSE? Commercial dates palms are typically propagated from seed. Dates are members of the Arecaceae or palm family. Dates are dioecious with male and female plants. A mature female date palm can yield upwards of 100 to 200 pounds of fruit each year.
Answers
The date variety that must be refrigerated after harvest due to its high sugar content is the Zahidi date.
Dates are known for their sweet taste, and some varieties have a particularly high sugar content. Among the options provided, the Zahidi date variety is known for its high sugar content and is commonly refrigerated after harvest to maintain its quality.
Tamar dates, also known as Medjool dates, are known for their soft and chewy texture. Thoory dates are a dry variety and are typically consumed in a dried form without the need for refrigeration. Black Sphinx dates, also known as Black Abbada dates, are characterized by their dark color and are often enjoyed fresh.
Therefore, based on the options provided, the Zahidi date variety is the one that must be refrigerated after harvest due to its high sugar content. Refrigeration helps preserve the quality, texture, and taste of the Zahidi dates by slowing down enzymatic activity and inhibiting microbial growth.
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Some jet airplanes fly in a layer of the atmosphere
where temperature generally increases with altitude
what is this layer of the atmosphere?
Answers
Answer:
the stratosphere
Explanation:
jet airplanes fly in a layer of the atmosphere close to earth namely the stratosphere
What major impact would any of these conditions most likely have on a living species?
A)
If unable to adapt, a species could become extinct.
B)
More food and water would become available.
C.
They would begin reproducing more quickly
D)
Predators would be hunted by their prey.
Answers
Summarize the functions of the vertebral column
Answers
Answer:
function of vertebral columnExplanation:
The major function of a vertebral column is to protext the spinal cord,it also provides stiffening for the body and attachment for the pectoral and pelvic girdle and many muscles. In human an additional function is to transmit body weight in walking and standing.
T/F According to the stages of change model, once you decide you want to change, you still have to go through a step-by-step process before the change occurs.
Answers
According to the stages of change model, once you decide you want to change, you still have to go through a step-by-step process before the change occurs is true.
The stages of change model is a framework that is used to understand how individuals go through the process of change, whether it's changing a behavior or overcoming a problem. According to this model, change is a process that occurs in stages, and not a one-time event.
The stages of change model includes five stages: pre-contemplation, contemplation, preparation, action, and maintenance.
Pre-contemplation is the stage where an individual may not be aware of the problem or is not ready to change.Contemplation is the stage where an individual begins to become aware of the problem and starts thinking about change.Preparation is the stage where the individual starts to make concrete plans to change.Action is the stage where the individual actually starts to take steps to change their behavior.Maintenance is the stage where the individual works to maintain the change over time.To know more about change model refer here:
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How might a foreign policy decision, such as the placement of an economic sanction against another country, affect U.S. citizens?
Answers
Impact on the U.S. economy: Sanctions can impact the economy of the country that they are imposed on, but they can also affect the U.S. economy. For instance, if the sanctioned country is a significant trading partner with the U.S., then the sanctions could lead to decreased trade and economic activity between the two countries, which could harm American businesses and consumers.
Impact on prices: Sanctions can impact prices of goods and services in the U.S. If the U.S. imposes sanctions on a country that is a major exporter of a particular commodity, such as oil or natural gas, then the price of that commodity could increase. This, in turn, could lead to increased prices for American consumers and businesses that rely on that commodity.
Impact on jobs: Sanctions can lead to job losses in the U.S. If the U.S. imposes sanctions on a country that is a major trading partner, then American companies that do business with that country could suffer. This could lead to layoffs or even the closure of those companies, which would result in job losses for American workers.
Impact on national security: Sanctions can also impact national security. If the sanctioned country is a potential threat to the U.S., then the sanctions could be a way to weaken that country's economy and military. However, the sanctioned country may retaliate, which could lead to increased tension and conflict between the two countries.
In summary, a foreign policy decision like the placement of an economic sanction against another country can have significant impacts on U.S. citizens, including their economic well-being, job security, and even their safety.
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If a determinate error is encountered upon testing a new analytical method on an old certified reference material (CRM), what could be done to find out if the error arises from contamination of the CRM? a) Analyze a blank and subtract it from the result; if the error decreases but does not disappear, the CRM was contaminated. b) Repeat the analysis with an increasing amount of CRM; if the error is independent of sample size, the CRM was contaminated. c) Analyze a blank and subtract it from the result; if the error disappears, the CRM was contaminated. d) Redo the analysis using new standard solutions for calibration; if the error persists, the CRM was contaminated. e) Repeat the analysis with an increasing amount of CRM; if the error decreases upon an increase in sample size, the CRM was contaminated.
Answers
The correct answer is a) Analyze a blank and subtract it from the result; if the error decreases but does not disappear, the CRM was contaminated.
If a determinate error is encountered upon testing a new analytical method on an old certified reference material (CRM), it is important to determine whether the error arises from contamination of the CRM or from the analytical method.
One way to determine whether the error arises from contamination of the CRM is to analyze a blank and subtract it from the result. If the error decreases but does not disappear, it is likely that the CRM was contaminated. This is because the blank should have no analytes or contaminants present, and any residual analytes or contaminants in the CRM would be removed when the blank is subtracted.
If the error does not disappear after subtracting the blank, it is important to investigate further to determine the source of the contamination. This could involve repeating the analysis with a fresh CRM or re-calibrating the analytical method with new standard solutions.
It is important to note that the other options listed are not reliable ways to determine whether the CRM was contaminated. Option b) is not a good approach because the error may not be independent of sample size, and option e) is not a good approach because the error may increase upon an increase in sample size, which could indicate that the CRM is not the source of the error.The correct answer is a)
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A student designs and experiment to test the effect of different fertilizers on plant growth. Which of the following is the independent variable?
Answers
Answer:
Fertilizer
Explanation:
Independent variable = a variable that does not depend on another
Since the plant growth depends on the fertilizers, we can note that plants are the dependent variable.
The fertilizer is independent since it does not depend on anything.
Compared to an uncatalyzed reaction, an enzyme-catalyzed reaction ________. PH 7 and 37 C Lipase Coenzyme Occurs at a faster rate Oxidoreductase
Answers
An enzyme-catalyzed reaction occurs at a faster rate than an uncatalyzed reaction due to the enzyme's ability to lower the activation energy for the reaction.
What is activation energy?The least amount of energy needed for just a chemical reaction can take place is called activation energy.
Enzymes are proteins that serve as catalysts, meaning they increase the rate of a chemical reaction without being consumed by the reaction. Enzymes have specialized active sites that bind to specific substrates, allowing them to catalyze a reaction in a specific direction. The enzyme's active site acts as a sort of lock and key, allowing only the correct substrate to be reacted with the enzyme. The enzyme's active site also causes the substrates to be positioned in the correct orientation for the reaction to occur, which further increases the rate of the reaction. The enzyme's active site also reduces the amount of energy needed for the reaction to occur, thereby lowering the activation energy and speeding up the reaction.
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Oberve: The rider have mae of 10 gram (top), 100 gram (middle), and 1 gram (bottom). Drag the 100-gram rider to 300. At thi poition it balance a 300-gram ma. What happen to the pointer?
Answers
The pointer goes down as the rider have masses of 10 gram (top), 100 gram (middle), and 1 gram (bottom) when drag the 100-gram rider to 300.
Levers of a particular kind are used to measure mass, or the quantity of substance in an item, such as a triple beam balance. On the measurement tray is placed a thing with an unknown mass. To balance the object, a group of sliding weights known as riders slide on beams on the opposite side of a fulcrum. The triple beam balance is a common tool for determining an object's mass. It consists of three beams, each of which has a single sliding weight whose size matches the notches on the notched scales of the beams.
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What is the risk of flu epidemic for countries that have a few medical supplies, such as vaccines, and damaged roads due to a natural disaster like a hurricane?
A. low
B. high
C. none
D. medium
Answers
The answer is B. High
In the given case, the risk of epidemic flu would be high.
What is an epidemic?It refers to the occurrence of a health-related incident or illness, which is unusually unexpected or large. Epidemics are generally a result of a disease of parasitic or infectious origin like a flu. The term is generally used to demonstrate a pronounced elevation in the occurrence of a disease and is not confined to sudden outbreaks.
The risk of an epidemic like a flu primarily elevates in the countries that are backward and are suffering from the issues like few medical supplies and vaccines. It even gets worse when the country is facing natural calamities like a hurricane.
Thus, the correct answer is option B, that is, high.
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What are some of the conditions that the cell must regulate in order to maintain homeostasis? Do
Answers
Answer:
to maintain homeostasis these things must be controlled:
pH levels in the body (I.e. the stomach) wanted levels sugar levels level of Co2 in our bodies blood glucose levels body temperaturewe maintain homeostasis to ensure that our enzymes, which speed up or make chemical reactions are working well and work within he required conditions.
external things we can do to maintain homeostasis:
wearing the appropriate clothing in summer and winter consuming the correct temperature beverages (i.e. cold drinks in summer) consumitn the correct temperature and nutrient required foods (I.e. nutritious pumpkin soup in winter)we also shiver when we are cold - the friction between our muscles produces heat.