How many polypeptide chains are shown in the tertiary protein structure in Model 3?
Answers
Answer:
3
Explanation:
Here, we are required to determine how many polypeptide chains are shown in the tertiary protein structure in Model 3 as shown in the picture attached.
The tertiary protein structure in Model 3 has 1 polypeptide chain/backbone.
Protein tertiary structure is simply defined the three dimensional shape of a protein. By convention, the tertiary structure (TS) of a protein will have a single polypeptide chain otherwise known as the polypeptide backbone with one or more protein secondary structures as the case may be. However, amino acid side chains may interact and bond in a variety of ways as evident in the diagram given.
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Related Questions
How does the structure of the skull help prevent injury to the brain?
Answers
Answer:
There are three layers of tissue that covers and protects the brain and it's spinal cord between the brain and the skull. The skull is a hard protective bone to keep the shape of the head and protect the brain.
Explanation:
Hope this helped and good luck! :)
Answer: Cranium
Explanation: Cranium is made of several bones that creates the "brain case."
Suppose that an unusually high degree of aurora kinase activity is observed in the cervix. What could we reasonably conclude about C5M treatment efficacy across all cervical cancer cell lines, using this new information and the data within the passage
Answers
Answer:
The division of cervical cancer cells will be inhibited
Explanation:
Aurora kinases are a type of serine/threonine kinase enzymes that play critical functions during cell proliferation, and they are recognized to be potential targets in cancer therapy. The benzo[e]pyridoindole (C5M) agent is a hydrosoluble inhibitor of aurora kinases capable of inhibiting cell proliferation. C5M induces mitotic arrest by faulty (no separation) of the sister chromatids during cell division, thereby eventually leading to polyploidy and finally triggering cell death. It has been shown that C5M acts to prevent the entry in mitosis by inhibiting histone 3 (H3) phosphorylation of aurora kinases.
Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact? primary succession secondary succession a climax community species extinction
Answers
The correct answer is B. Secondary succession
Explanation:
In ecosystems, secondary succession occurs as certain events such as fires cause vegetation to temporarily disappear from one area. However, as soil is not affected negatively, vegetation grows again after some time, which means there is a secondary growth of vegetation and changes in the structure of an ecological community.
This term applies to the situation in the 1988 fires in Yellowstone Park because the fire destroyed the vegetation in the zone temporarily, but as the soil was intact after years or decades the vegetation will grow again, although this might implied changes in the ecosystem.
Answer:
Secondary succession
Explanation:
Edge 2020
Question 1 of 10
10 Points
You are working to catalogue some of the species in the Amazon rainforest
before they become extinct from logging. You collect 3 organisms that all look
similar to the Coral snake and do a phylogenetic analysis on them before
classifying and naming them. The Coral snakes DNA barcode is
ATTCGCGATAC. Compare it to each sample organism's DNA barcode to
determine how related they are to the Coral Snake, from closest to furthest.
Organism 1: ATTGGCCATAC
Organism 2: ATCCGGGATAG
Organism 3: ATTCGCCATAC
Answers
Answer:
The organism closest to the coral snake is organism 3, followed by organism 1 and finally organism 2.
Explanation:
The more similar the DNA composition of the organisms, the closer and more closely related they are. With that we can say that the coral snake is closer to organism 3, since the sequence of nitrogenous bases in its DNA is more similar, in relation to other organisms. After organism 3, it is organism 1 that most resembles a coral snake. Organism 2, however, has a different DNA composition, the organism being less similar and the more distant from the coral snake.
Contour plowing occurs when:
farmers plow fields in horizontal rows
farmers stop plowing fields
farmers plow fields around hills
farmers plow fields around brooks and steams
Answers
Answer:
farmers plow fields around hills.
Explanation:
Hope it helps.
Answer:
farmers plow fields around hills
Explanation:
what is photosynthesis
Answers
Answer:
Photosynthesis happens in the leaves of a plant.
This is a chemical reaction, which takes place inside a plant, producing food for the plant to survive. For photosynthesis to take place, carbon dioxide, water and light are needed.
I HOPE THIS HELPED YOU :)
Answer:
Photosynthesis is the process by which plants make their food.
Explanation:
photosynthesis in plants involve the green pigment called chlorophyll and generates oxygen as by-product.
Is phrenology an example of science or pseudoscience? Explain your answer.
Answers
Answer:
Yes, phrenology is an example of science or pseudoscience, which is there ti benefit humanity. it is recognized as pseudoscience
Explanation:
pseudoscience is a term commonly applied to any body of knowledge, methodology, or practice portrayed as a scientific substantially from the required scientific work. Phrenology persist as a pseudoscientific form of divination. it has no presence mainstream science, but it persists nevertheless.
Phrenology is considered an example of pseudoscience because it does not have proven scientific results that can support its claim.
What is phrenology?Phrenology is the study of attribute traits, talents, and intellectual prowess as a result of skull curvature is known as phrenology. Due to the absence of scientific evidence to back up its assertions, phrenology is regarded as a pseudoscience.
Pseudoscience is a science that only makes theories and assumptions, but there are no proven results or experiments to prove those claims. They are mostly based on statements and beliefs.
Phrenology is observing the skull to know the feelings and type of organism. It is only based on beliefs, there are no proven tests, so it is an example of pseudoscience.
Thus, phrenology comes under pseudoscience.
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Crosses between red and white true-breeding plant types yield offspring that are pink in color. When these pink offspring are crossed with other pink individuals, the resulting progeny show a range of color. This result is consistent with the theory of
Answers
Answer:
The correct answer is - particulate inheritance.
Explanation:
The theory of particulate inheritance expresses that discrete "particles" are passed from one generation to another generation offspring. While Mendel utilized the term particles, we presently realize that these particles are really genes.
For instance, codominance in the flower of two distinct colors present in the different alleles of genes expressed or visible together without mixing and can be communicated distinctively in later generations individually.
Thus, the correct answer is - particulate inheritance.
Which refers to the maintenance of a stable internal environment despite changing external conditions? differentiation self-renewal homeostasis specialization
Answers
Answer:
homeostasis
Explanation:
Living systems have the ability to maintain a stable internal environment despite changes in their external environment. The process by which they do this is called HOMEOSTASIS. Homeostasis is important for the optimal functioning of internal organs in living organisms.
An example of homeostasis is the regulation of body temperature in humans. The body uses internal mechanisms to ensure that the body temperature is kept at a stable state irrespective of the changes in environmental conditions that could affect it.
Homeostasis refers to the maintenance of a stable internal environment despite changing external conditions, option C is correct.
What is Homeostasis?A biological creature can retain internal stability while adjusting to shifting environmental conditions through a process known as homeostasis. Homeostasis is a dynamic process that can alter internal circumstances as needed to survive threats from the outside world. It is not static and unchanging.
The constant internal, external, chemical, and social conditions that biological systems sustain are known as homeostasis. In order for the organism to function at its best, a number of factors, including body temperature and fluid balance, must be maintained within predetermined ranges.
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During cytokinesis plant cells form a cell plate instead of pinching apart like an animal cell, propose a reason why there is this difference.
Answers
Options are not given in the question. So, the complete question is as follows:
During cytokinesis plant cells form a cell plate instead of pinching apart like an animal cell, propose a reason why there is this difference.
A. The plant cells do not contain centrioles do they cannot pinch apart
B. Plant cells have rigid cell walls so they form a cell plate instead of pinching apart.
C. Plant cells do not divide as rapidly as animal cells
D. In plant cells the large central vacuole prevents the cell from pinching apart.
Answer:
B. Plant cells have rigid cell walls so they form a cell plate instead of pinching apart.
Explanation:
Plant cells and animals cell are somehow different from each other in their structure as well as in functions such as plant cells form a cell plate while animals cells, pinching apart the cells during cytokinesis.
This difference is because plant cells have rigid cell walls that form a cell plate unlike complex cells like animals that being pinch into halves.
Hence, the correct option is "B".
Answer:
Plant cells have rigid cell walls so they form a cell plate instead of pinching apart.
Explanation:
Which of the following macromolecules is matched with its correct role in the cell?
Choose ONE answer:
A. Carbohydrates — key component of the cell membrane (lipid bilayer)
B. Lipid — chemical messenger
C. Lipid — storage of short-term energy
D. Nucleic acid — chemical messenger
Answers
Explanation : carbohydrates are stored in the form of fats in the liver
What additional information does the chart provide that the text does not include ? answer: there is less gravity on mars than on earth .
Answers
Answer:there is less gravity on mars than on earth .
Explanation:
Answer:
There is less gravity on Mars than on Earth.
Explanation:
The chart shows that Earth gravity: 32 vs. Mars gravity: 12 or, 38% that of Earth.
I got it right.
How does cross pollination differ from self pollination?
Answers
Answer:
Cross pollination:
the transfer of pollen grain from anther to stigma that takes place between two different flowers of the same species.
Self pollination:
the transfer of pollen grain from anther to stigma that takes place at a single flower.
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Answer:
It assures that there is genetic variety within each plant species.
Explanation:
How is cancer related to cell division
Answers
Answer:cell division is how cancer spread in the body
Explanation: Cancer cells are mutated and overtake good cells
In general which group of stars have the Brightest Luminosity? Select one: a. Supergiants b. Giants c. Main sequence d. White dwarfs
Answers
Answer:
Hello!
I think your answer should be A. SUPERGIANTS!
Explanation:
HOPE THIS HELPS!
itsMATT04
Answer:
A
Explanation:
got it correct
Why has society changed its view on smoking since 1960
Answers
Answer:
Ever since scientists discovered that smoking is bad for the lungs and the body in general, over time there became less and less people who do it. Even though the scientists are right, people still make the wrong choice and start smoking. Most people agree on the fact that smoking is bad for your health.
Perhaps you and/or your significant other is a carrier of a harmful recessive trait, such as cystic fibrosis. What would you do when considering having children? Would you hope for the best and ignore the situation, or would you see a genetic counselor or what?
Answers
Answer:
At birth the baby would indicate the FEIM laboratory examination or genetic analysis prior to delivery.
Explanation:
The FEIM laboratory examination is carried out by extracting a portion of blood from the newborn child, and is necessary for the accurate diagnosis of diseases such as cystic fibrosis and others such as HIV, etc.
the main and most important product to be used in photosynthesis produced by the light reaction is...
a) ATP and NADH
b) Oxygen
c) Water
d) Glucose
Answers
Answer is
a) ATP and NADPH
as those are the two products that help form glucose
Hope it helps ya!
During these initial reactions, water is used and oxygen is released. The energy from sunlight is converted into a small amount of ATP and an energy carrier called NADPH.
Tan mice lived in regions with sandy hills. Over time, many of these tan mice migrated to a region with dark-colored hills. Eventually, the mice developed certain mutations in the trait for hair color, which made them black. Which three statements can you make about these mice?
Black mice can camouflage easily, which provides protection.
The mutations for black hair will be inherited through natural selection.
The population of tan mice will increase in the dark-colored hills over time.
Black mice will have a better chance of successfully reaching reproductive age.
Both mice will have an equal chance of successfully reaching reproductive age.
Answers
Answer:
1. Black mice can camouflage easily, which provides protection.
2. The mutations for black hair will be inherited through natural selection.
4. Black mice will have a better chance of successfully reaching reproductive age.
Explanation:
what do you think the difference is between CER & Scientific Method? give an example.
Answers
Answer:
The main difference between the scientific method and the CER is the number of steps recommended by each one to make a valid scientific observation.
Explanation:
The scientific method consists of a set of steps that aims to establish a scientific experiment capable of explaining a scientific phenomenon hitherto unknown, or little explained. The scientific method consists of many stages, where each completes the other.
The CER method, on the other hand, has only three stages, which are claim, evidence, reasoning. This method can be established and finalized more quickly than the scientific method and is not as judicious, but it also presents efficient results to justify or explain a scientific phenomenon.
Identify the stage of cellular respiration in which each of the following takes place,
Produces 32 ATP molecules
Creates four ATP molecules, but then gains overall only iwo
Gives off carbon dioxide
Gives off water
Produces two ATP molecules
DON
Answers
The given statements correspond to different stages of cellular respiration, which is the process by which cells generate energy from glucose and other organic molecules. The stages of cellular respiration are glycolysis, the citric acid cycle (also known as the Krebs cycle), and oxidative phosphorylation (including the electron transport chain). Let's analyze each statement and identify the corresponding stage:
1. Produces 32 ATP molecules: This statement refers to the stage of oxidative phosphorylation, specifically the electron transport chain. During this stage, electron carriers produced in earlier stages (glycolysis and the citric acid cycle) donate electrons to the electron transport chain, leading to the production of ATP through chemiosmosis. In total, oxidative phosphorylation generates a maximum of 32 ATP molecules.
2. Creates four ATP molecules, but then gains overall only two: This statement refers to the stage of glycolysis. Glycolysis is the initial step of cellular respiration and occurs in the cytoplasm. It involves the breakdown of glucose into two molecules of pyruvate and the production of ATP. In glycolysis, a net gain of two ATP molecules is produced. However, since two ATP molecules are used in the initial steps of glycolysis, the overall gain is only two ATP molecules.
3. Gives off carbon dioxide: This statement corresponds to the citric acid cycle (Krebs cycle). The citric acid cycle takes place in the mitochondrial matrix and completes the oxidation of glucose. During this cycle, acetyl CoA derived from pyruvate is further oxidized, leading to the release of carbon dioxide as a waste product.
4. Gives off water: This statement corresponds to the stage of oxidative phosphorylation. In oxidative phosphorylation, the final electron acceptor is oxygen. As electrons pass through the electron transport chain, they combine with oxygen and hydrogen ions to form water.
5. Produces two ATP molecules: This statement refers to the stage of substrate-level phosphorylation in the citric acid cycle. During the citric acid cycle, one ATP molecule is produced directly through substrate-level phosphorylation in one of the reactions. Thus, in each cycle, two ATP molecules are generated (although later stages of cellular respiration generate more ATP through oxidative phosphorylation).
In summary, the stages of cellular respiration corresponding to each statement are as follows:
1. Produces 32 ATP molecules: Oxidative phosphorylation (electron transport chain)
2. Creates four ATP molecules, but then gains overall only two: Glycolysis
3. Gives off carbon dioxide: Citric acid cycle (Krebs cycle)
4. Gives off water: Oxidative phosphorylation (electron transport chain)
5. Produces two ATP molecules: Citric acid cycle (substrate-level phosphorylation)
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Which of the following is a characteristic of the plasma membrane?
It is made up of one layer of phospholipids.
It doesn't contain any molecules aside from phospholipids.
The outward-facing phospholipid tails give it a rough quality.
It allows some molecules to pass through but prevents others from doing so.
Answers
Answer:
D. It allows some molecules to pass through but prevents others from doing so.
Explanation:
Plasma membrane or cell membrane is a selective permeable membrane which allows light molecules to pass and prevents heavy molecules.
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How would you describe the effect of a 1°C increase of temperature on the biodiversity of the habitat in terms of number of populations and number of individuals in the populations? Use evidence from your graph and table to support your answer.
Answers
Answer:
Population of some organisms increases and some decreases with the increase in temperature.
Explanation:
The population of certain species such as Nassuar grouper, Spotlight parrotfish and Queen angelfish increases with the increase in temperature while some species such as yellow tail snapper, sponges and algae decreased in population with the increases in temperature. This is because some species needs high temperature so increase in temperature increases the population while some species needs low temperature so high temperature kill them and population is decreased.
Answer:
The population of some creatures increases while the population of others falls as the temperature rises. Certain species, such as Nassuar grouper, Spotlight parrotfish, and Queen angelfish, see an increase in population as the temperature rises, whereas others, such as yellow tail snapper, sponges, and algae, see a fall in population as the temperature rises. This is because some species require high temperatures, so a rise in temperature increases their number, but others require low temperatures, so an increase in temperature kills them and decreases their population.
Explanation:
2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.
Answers
Answer:
Challenge : Competition form other species.
Success : Adaptation and colonisation.
Explanation:
Challenges like adapting to the new environment and different climatic zones and handle other potential threats like predators as snakes, birds, and others. Their potential to find food and sustain themselves will be a challenge. Success factors include their ability to adapt and develop a sense of the different environment and through genetic mutation and natural selection they can develop and grow in numbers.A. ¿Por qué el ciclo del agua es un ciclo geofisico? b. ¿Qué rol cumple el agua en los seres vivos? c. Relacione el proceso de fotosíntesis y respiración con los ciclos del oxígeno, carbono y del agua d. ¿Cómo influye el carbono en las cadenas tróficas? e. ¿Cómo influye el bióxido de carbono en el calentamiento global? f. ¿En qué proceso vegetal el carbono es fijado? g. ¿Qué estado físico tiene el nitrógeno en forma libre? h. ¿En qué biomoléculas encontramos nitrógeno? i. Las actividades biológicas fundamentales en el ciclo del nitrógeno comprenden la fijación de nitrógeno, la amonificación, la nitrificación y la desnitrificación y la asimilación. Explica e que consisten los procesos subrayados. J. En que consiste la eutrofización del agua y qué consecuencias tiene para los ecosistemas
Answers
Answer:
a- Es una molécula que pasa por los diferentes estados físicos durante el ciclo del agua
b- El agua es fundamental para llevar a cabo funciones celulares
c-Durante la fotosíntesis se libera oxigeno (O2) y se consume dióxido de carbono (CO2), mientras que durante el proceso de respiración se consume O2 y se libera CO2, ambos procesos consumen agua.
d- el carbono es un elemento químico fundamental de los organismos. El carbono conjuntamente con oxigeno, hidrógeno y nitrógeno conforman el 95 % de la biomasa presente en la biosfera
e- el CO2 es un gas de efecto invernadero, estos gases impiden la eliminación del calor generado por los rayos del sol de la atmósfera
f- el carbono es fijado durante la fotosíntesis
g- estado gaseoso
h- en las bases nitrogenadas que conforman los ácidos nucleicos (ADN y ARN). Además, el nitrógeno es también un constituyente fundamental de los aminoácidos
i- amonificación es la transformación de compuestos orgánicos en amoníaco; nitrificación es el proceso de oxidación de amonio que da como resultado nitrito; desnitrificación consiste en el metabolismo del nitrato en organismos anaerobios; asimilación de nitrógeno abarca aquellos procesos biológicos que generan compuestos orgánicos a base de nitrógeno
j- eutrofización implica la acumulación de compuestos orgánicos en masas de agua estancada tales como, por ejemplo, lagos o embalses. Este proceso se encuentra asociado a la contaminación del agua.
Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or paracrines that are released directly into the lamina propria. Which of the following cell types synthesize and secrete these products?
a) parietal cells
b) enteroendocrine cells
c) mucous neck cells
d) zymogenic cells
Answers
Answer:
The correct answer is option b, that is, enteroendocrine cells.
Explanation:
The specialized cells of the pancreas and the gastrointestinal tract exhibiting endocrine function are termed as enteroendocrine cells. These cells generate gastrointestinal peptides or hormones in response to a distinct kind of stimuli and discharge them into the bloodstream for the systemic effect. These are the most varied endocrine cells found within the body.
The intestinal enteroendocrine cells produce somatostatin, cholecystokinin, motilin, enteroglucagon, and neurotensin hormones. The G cells present within the intestine produce gastrin. In the gastric glands, the gastric enteroendocrine cells are present, which produce histamine, and others like cholecystokinin, alpha and gamma-endorphin, somatostatin, and others.
In the islets of Langerhans, the pancreatic enteroendocrine cells are present, which produce hormones like ghrelin, amylin, somatostatin, and pancreatic polypeptide.
Which describes one characteristic of both El Niño and La Niña?
Both are causes of long-term climate change.
Both create warmer water.
Both occur in the Pacific Ocean.
Both are causes of hurricane activity.
Answers
Answer:
Both occur in the Pacific Ocean.
Explanation:
El Niño and La Niña are opposite phases of a natural climate pattern across the tropical Pacific Ocean that swings back and forth every 3-7 years on average
Answer:c
Explanation:
Earth's magnetic field is created by the bar magnets reaction forces gravitational forces flow of electric charges
Answers
Answer:
The correct option is;
Flow of electric charges
Explanation:
The movement of the enormous quantities of molten metals in the Earth's outer core generates electric current which travel several thousands of miles per hour due to the axial rotation of the Earth results in the metallic particles being lined up and generating very strong magnetic fields (due to dynamo effect) that extends all over the planet and into space.
Answer:
D. flow of electric charges
Explanation:
URGENTT!
does a fire take food for energy?
does a fire reproduce?
does a fire produce waste?
Answers
Answer:
Yes, a fire takes food for energy.
No, a fire doesn't reproduce.
Yes, a fire produces waste.
Explanation:
For fire, the food that it requires is the objects that help in the process of burning. The objects can be wood, paper, coal, fuel, etc. Oxygen is required for the process of burning to take place.
The process of reproduction undergoes in living beings. Fire produces heat and light but this cannot be termed to be a process of reproduction.
Burning produces wastes in the form of ash and burned products. Therefore, it can be said that fire produces wastes.
Which type of mutation occurs only in gametes? pick one only THANK YOU :D
A.germline mutation
B.somatic mutation
C.point mutation
D.frameshift mutation