The functional groups present in threonine, a naturally occurring amino acid found in many proteins, are:
1. Amino group (NH₂)
2. Carboxyl group (COOH)
3. Hydroxyl group (OH)
Threonine is an α-amino acid, which means it has an amino group and a carboxyl group attached to the same carbon atom. Additionally, it has a side chain containing a hydroxyl group, making it a polar and uncharged amino acid.
Threonine is an amino acid that we use in the biosynthesis of proteins. It involves an α-amino group (a protonated − NH3+ structure under organic conditions), a carboxyl group (a deprotonated − COO− form under biological conditions), and a side chain containing a hydroxyl group (OH), making it a polar, uncharged amino acid.
Threonine is among the two proteinogenic amino acids with two stereogenic centers, another being isoleucine.
Threonine subsists in the following configurations with four possible stereoisomers:
(2S,3R)
(2R,3S)
(2S,3S)
(2R,3R)
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the enzyme(s) called __________ break(s) down the substrate called __________.
The enzyme(s) called peptidases break(s) down the substrate called proteins.
Peptidases are the digestive enzymes that can break down the large proteins into smaller peptides or even single amino acids. This process is known as proteolysis. The enzyme is produced in the small intestine of the digestive system.
Proteins are the biomolecules made up of amino acid as the monomers. These are the functional forms of genes that are involved in every function of the body. The proteins are synthesized in the cytoplasm of the cell where ribosomes are present. Proteins are involved in functions like signaling, enzymatic, transport, etc.
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What do you suppose would happen to your cells if the water level was not regulated
Hello!
So homeostasis is achieved by the cells of the body by regulating what goes in and out of the cells.
One of these things is water.
The water retention of a cell is important because if there is too much water in a cell, it will actually "explode."
can anyone help with: In one or two paragraphs summarize Cellular Respiration. Be sure to include the following words: Cellular respiration, Mitochondria, Cytoplasm, Glycolysis, pyruvates, Krebs cycle, Carbon Dioxide, NADH and FADH2 (high energy electron carriers), electron transport chain, Oxygen, Water, and ATP.
Cellular Respiration is a metabolic process in which mitochondria and cytoplasm work together during Glycolysis, the Krebs cycle, and the electron transport chain. The reactants of these metabolic processes include Oxygen, Water, and the products include pyruvate (in glycolysis), ATP, Carbon Dioxide, NADH and FADH₂ (high energy electron carriers).
What is the process of cellular respiration?The process of cellular respiration is a group of metabolic pathways that generates ATP in aerobic conditions, i.e. in the presence of oxygen which acts as an electron acceptor during the electron transport chain.
The processes of cellular respiration include:
GlycolysisThe Krebs cycleThe electron transport chainTherefore, with this data, we can see that Glycolysis, the Krebs cycle, and the electron transport chain are part of the cellular respiration processes and they work together to generate energy in the form pf ATP.
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Which choice is not an example of a molecule?
O Mn
O H₂S
О КОН
O 03
The anaerobic conversion of 2 glucose to 4 lactate is accompanied by a net gain of?
The anaerobic conversion of 2 glucose to 4 lactate is accompanied by a net gain of 2 ATP molecules.
During anaerobic glycolysis, glucose is converted to lactate in the absence of oxygen. This process occurs in various cells, including muscle cells during intense exercise. In this conversion, two molecules of glucose are metabolized to produce four molecules of lactate. Along with the production of lactate, there is a net gain of two ATP molecules. However, it is important to note that anaerobic glycolysis produces ATP less efficiently compared to aerobic respiration. In aerobic conditions, glucose is fully oxidized to carbon dioxide, resulting in a much higher ATP yield through the process of oxidative phosphorylation.
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Your colleague has collected some sediments from a mangrove swamp and then grows the bacteria from those sediments on an agar plate to determine the concentration of bacteria in those sediments.
a) Describe why the resulting bacterial concentration is an underestimate of the actual concentration of bacteria in those sediments.
b) State what method they should have used instead to more accurately determine the bacterial concentration.
From the question;
1) It may have been underestimated sue to visibility bias
2) The method of direct microscopic count or direct cell count can be employed.
What about the bacteria?On the particular agar medium employed, not all bacteria contained in the sediments may be viable or able to grow. Some bacteria might no longer be culturable or in a dormant state, which limits their capacity to grow into colonies on the agar plate. This viability bias may lead to the underestimate of the bacterial population by excluding a sizable fraction of it.
A direct microscopic count entails using a microscope to directly observe and count bacterial cells. Without the bias imposed by culture-based approaches, it provides a more thorough count of bacterial cells, including viable and non-viable cells.
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Which of these is not a stage in development?
A. Postnatal development
B. Prenatal development
C. Differentiation
D. Embryonic development
The answer is C. Differentiation is not a stage in development of fetal
Differentiation is a process that occurs during development, but it is not a stage. It refers to the specialization of cells as they become different types of tissues and organs.
Embryonic development refers to the stage of development from fertilization to the end of the eighth week of gestation.
Prenatal development includes both embryonic development and the subsequent fetal development until birth. Postnatal development refers to the period of growth and development that occurs after birth.
To summarize, differentiation is not a stage in development, while embryonic development, prenatal development, and postnatal development are all stages of development.
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Which period occurred after the extinction of the dinosaurs?
Answer:
The Cretaceous
Explanation:
hope this helps
Answer:
Lystrosaurus and other mammal-like reptiles dominated the early Triassic. The Triassic Period (252-201 million years ago) began after the biggest extinction catastrophe in Earth's history decimated life
Explanation:
visualizing active genes. in electron microscopy in molecular biology (eds. sommerville j, scheer u). irl press, oxford (1987) 101–146
The book "Visualizing Active Genes in Electron Microscopy in Molecular Biology" (Sommerville J, Scheer U, 1987) provides valuable insights into techniques and methods for visualizing active genes using electron microscopy.
What are some key techniques discussed in the book for visualizing active genes in electron microscopy?The book covers various techniques employed in electron microscopy to visualize active genes. It explores methods such as immunolabeling, in situ hybridization, and autoradiography. Immunolabeling involves the use of antibodies to specifically target and visualize active gene products within cells. In situ hybridization enables the detection of specific nucleic acid sequences by hybridizing labeled probes to complementary target sequences in cells or tissues.
Autoradiography involves incorporating radioactive isotopes into cellular components, allowing their visualization via electron microscopy. These techniques provide researchers with the means to identify and study the localization and expression of active genes at the molecular level.
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The cellulose and lignin are
changed into other substances,
including _____and____
DNA_____ is a technology that can identify and distinguish among individuals based on variations in the number of short tandem repeats in their DNA.
DNA profiling is a technology that can identify and distinguish among individuals based on variations in the number of short tandem repeats (STRs) in their DNA.
This technique involves analyzing specific regions of a person's DNA where these STRs occur. By examining the length and pattern of these repeats, scientists can generate a unique DNA profile for each individual. This technology has numerous applications, including forensic science, where it is commonly used to match DNA samples found at crime scenes to suspects or victims. DNA profiling can also be used in paternity testing, genealogy research, and even in wildlife conservation efforts to track the genetic diversity of endangered species.
One of the main benefits of DNA profiling is its ability to provide highly accurate and reliable results. Since the probability of two unrelated individuals sharing the same STR pattern is extremely low, DNA profiling can confidently link a specific individual to a biological sample. In summary, DNA profiling is a powerful technology that can accurately identify and differentiate individuals based on the unique variations in their short tandem repeats. Its wide range of applications, from forensic science to conservation efforts, showcases its value and importance in our modern society.
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What is insects animal??
Answer:
if your asking if an insect is an animal than .. yes!.....and no!!..
Explanation:
well er- ``Insects are also animals, but they then diverge from humans and are classified as arthropods`` - on the web
No-till farming helps to conserve soil fertility because
O remnants of the previous crop are left to slowly decay
O deep ridges are cut across, not down, the slopes of hills
the ground is carefully turned to mix soil nutrients
only organic fertilizers and natural pesticides are used
No-till farming helps to conserve soil fertility because : ( A ) remnants of the previous crop are left to slowly decay
No-till farming is a farming technique whereby a farmer grows crops or pasture without first tilling the soil. This technique comes with some advantages and disadvantages and it is currently gaining grounds among local farmers.
Advantages of No-till farming Improvement in soil structure prevents soil erosion saves time for farmerDisadvantages of No-till farming The cost of using special equipments possibility of Fungal diseaseuse of more herbicidesHence we can conclude that No-till farming helps to conserve soil fertility because remnants of the previous crop are left to slowly decay.
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sunlight is captured by _____ and converted to chemical energy like sugars or other complex molecules.
Sunlight is captured by photosynthetic organisms, such as plants and algae, and converted to chemical energy like sugars or other complex molecules.
Sunlight is captured by photosynthetic organisms and converted to chemical energy like sugars or other complex molecules through a process called photosynthesis. During photosynthesis, plants use the energy from sunlight to convert carbon dioxide and water into glucose (a simple sugar) and oxygen. This process requires a complex series of chemical reactions, which are carried out by specialized structures within the plant called chloroplasts. The chloroplasts contain pigments called chlorophyll, which absorb light energy and transfer it to other molecules within the plant. This ultimately results in the creation of the complex molecules necessary for plant growth and survival.
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Answer the following questions in complete sentences.
1.
What is the direct effect of this type of weathering?
How does freeze-thaw weathering occur in a glacler?
What can be the results from abrasion?
2.
3. How does deposition form from a glacier? What are two landforms that can be formed from glacial deposits?
This type of weathering can cause changes to the shape, size, and texture of different landforms. It can also play a role in landslides and the formation of new landforms.
What is weathering?Weathering may be defined as the process of breaking down or dissolving rocks and minerals on Earth's surface. It involves the complete deterioration of rocks, soils, and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms.
Freeze-thaw weathering is the main type of weathering. In proceeding in a manner that during the day when temperatures are higher, the snow melts and water enters the cracks in the rock. When the temperature drops below 0°C the water in the crack freezes and expands by about 9%. This makes the crack larger.
The majority of abrasions heal without leaving any scars. However, the abrasions that extend into the dermis may result in scarring of the tissue upon healing. The most common mechanism of the formation of abrasion is due to friction against the epidermis, resulting in its denudation.
A glacial deposition is the settling of sediments left behind by a moving glacier. As glaciers move over the land, they pick up sediments and rocks. Drumlins and ribbed moraines are two types of landforms left behind by glacial deposits.
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why is endocrinology not a subspecialty of anatomy
Ten subfields of anatomy: pathological anatomy, radiographic anatomy, gross anatomy, systemic anatomy, developmental biology, cell biology, histology, and regional, surface, and surface and surface anatomy.
The area of physiology known as endocrinology is focused on how the endocrine system and the hormones produced by these glands work. In light of this, endocrinology does not focus on the investigation of how the neurological system or nerve cells operate.
Biology and medicine's field of endocrinology focuses on the endocrine system, disorders that affect it, and the distinct hormone discharges that emerge from it. The integration of developmental processes like proliferation, growth, and differentiation as well as psychological or behavioural actions like metabolism, growth and development, tissue function, sleep, digestion, respiration, excretion, mood, stress, lactation, movement, reproduction, and sensory perception brought on by hormones are also taken into consideration.
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during which phase of the cell cycle does mitosis occur
Answer:
The M Phase
Explanation:
The process of mitosis, or cell division, is also known as the M phase. This is where the cell divides its previously-copied DNA and cytoplasm to make two new, identical daughter cells.
List and describe the 4 characteristics of life.
The four characteristics of living things (life) include the following:
Living things are made up of cells.Living Things reproduce.Living Things are based on genetic code. Living things grow and develop.What are the characteristics of life?The characteristics of life are those features that are exhibited by living organisms without which they may not be able to survive in their immediate environment.
Some of the characteristics of life include the following:
Living things are made up of cells: The cell is known as the functional structural unit of life without which life is not in existence.Living Things reproduce: Living things are known to be able to produce their young ones alive. The process of reproduction prevents them from going into extinction.Living Things are based on genetic code: All living things are made up of genetic materials which are in turn transferred during reproduction to their offspring.Living things grow and develop: The cells of living things do differentiate to have specific functions and multiply into matured cells capable of reproduction.Learn more about genetic material here:
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when the action potential reaches the end of the axon, neurotransmitters are released directly into the:______.
The terminal buttons are signalled to release neurotransmitters into the synapse when the electrical impulse from the action potential reaches the end of the axon.
A neurotransmitter is a substance that transmits impulses across the synapses between neurons. Neurotransmitters move across the synaptic gap between a neuron's terminal button and the dendrites of neighbouring neurons, where they attach to the dendrites in the nearby neurons. Moreover, different dendrites are especially sensitive to various neurotransmitters, and various terminal buttons release various neurotransmitters. Only if the neurotransmitters are the proper shape to fit in the receptor sites on the receiving neuron will the dendrites permit them.
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PLS HELP I WILL MARK AS BRAINLIEST
Answer:
I think bacteria is the answer
I'm sorry if it's not the answer
Answer:
Bacteria
Explanation:
Bacteria are unicellular microorganisms and hence they are generally not organized into tissues.
Thank you!
What are the prospects for continued economic growth? what ethical problems pertain to continual growth?
The prospects for continued economic growth is expected rise in the next few years .
What is economic growth prospect?Economic growth prospect can simply be defined as the focus is on current economic trends, both domestically and globally, as well as forecasts of the most important macroeconomic variables, including inflation, interest and exchange rates, GDP growth and household consumption.
The ethical problem which pertain to continual growth is the problem of sustainable growth which is the current growth in output that must not lead to future decrease in growth.
Economic growth is a term used in economics to describe the growth of the economic output of a country at a particular period of time.
So therefore, the prospects for continued economic growth is expected rise in the next few years.
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What object on earth is thousands of kilometers?
Maybe i am incorrect- but the only thing i can quite place my finger on for something THOUSANDS of kilometers is the solar system and or earth itself...Another thought that came to mind was water-there's about 1,386,000,000 cubic kilometers of water on earth.
Which word correctly fills in the blanks below?
Single-celled and many multi-celled organisms reproduce asexually by a process called _____________, which is simple cell division. In ___________, DNA is duplicated and then divided equally between two daughter cells. In ___________ in eukaryotes, the DNA is sorted into the two new nuclei formed. A separate process divides the cytoplasm in two. __________ keeps the number of chromosomes constant from one cell generation to the next.
Group of answer choices
mitosis
photosynthesis
budding
cellular respiration
Answer:
mitosis
Explanation:
Answer: a. budding
b. mitosis
c. budding
d. mitosis
Explanation:
What is the percentage of thymine in yeast and in a cow?
Answer:31
Explanation: I searched it up
Analyze
1. What are the biotic and abiotic factors the scientists monitor which influence
this bat population?
2. How did the carrying capacity of bats change between Year One and Year
Two? How did the biotic and abiotic factors change between Year One and
Year Two? Summarize how the changes in the different biotic and abiotic
factors influenced the bat population.
3. How would the bat population influence the number of cactus fruit that
develop?
Answer:
Explanation:
1-Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate. The carrying capacity of an environment is reached when the number of births equal the number of deaths. A limiting factor determines the carrying capacity for a species
2-
Carrying capacity, or the maximum number of individuals that an environment can sustain over time without destroying or degrading the environment, is determined by a few key factors: food availability, water, and space. These key factors have the ability to limit, or even reduce a population by lowering birth rates, increasing the death rate, or encouraging migration. For this reason, these are referred to as ‘limiting factors.’ When there are no limiting factors a population can grow exponentially.
Abiotic vs. Biotic Limiting Factors
These limiting factors can be further broken down into abiotic or biotic limiting factors. Abiotic factors are non-living physical and chemical elements in the ecosystem, such as sunlight, temperature, soil, water, and oxygen. Biotic factors are living or once-living organisms in the ecosystem, such as food, disease, competition, and predators. As an example, we can look at bison in Yellowstone National Park. They have to compete with elk and other ungulates while foraging for food, a biotic factor. One abiotic factor limiting bison is the weather, as heavy winter snows can drive them out of the park.
Limiting Factors Based on Density
We can also look at factors that determine carrying capacity in terms of their density-dependence. Density-dependent limiting factors make the per capita growth rate decrease as the population increases. Density-dependent limiting factors tend to be biotic, including factors such as food and disease. For example, in a population of panthers, there is access to a fixed amount of food. When the population remains small there will be plenty of food for all panthers. When the panther population gets large enough the food may become insufficient, leading to competition among panthers, from this competition, panthers may starve, or die, and stop reproducing. As such, the per capita growth rate of the panther population may shrink or level off. Food in this case is an example of a density-dependent limiting factor.
A melanistic Indian leopard in Nagarhole National Park
Density-independent limiting factors are factors that affect the per capita growth rate regardless of how dense a population is and include factors such as a flood, drought, and habitat destruction. Consider a flash flood occurs in the panther habitat. The flood has the ability to kill any panther that is in the wrong place at the wrong time, independent of how many panthers are in the area. In this case, the flood, or natural disaster, is the density-independent limiting factor.
Limiting Factors and Humans
While food and water supply, habitat space, and competition with other species are some of the limiting factors affecting the carrying capacity of a given environment, in human populations, other variables such as sanitation, diseases, and medical care are also at play. Often, some variables are not equitably distributed among human populations with some consuming more than others, and with affluence on the rise globally, human carrying capacity is neither static nor easy to calculate.
Teaching Carrying Capacity in the Classroom
Help your students understand carrying capacity by sharing the activity Panther Hunt where acting as panthers, students compete for limited “prey” resources in the classroom “environment.” Or, Habitat Scramble where students act as individuals of species in a habitat trying to survive by collecting cards that represent essential habitat resources and explore what happens when a habitat is disrupted.
Photo Credits: Bison herd grazing in Yellowstone: Euphoria42, A melanistic Indian leopard in Nagarhole National Park: Davidvraju
The biotic and abiotic factors the scientist's monitor that influence this bat population are cactus growth and rainfall respectively.
What do you mean by Abiotic factors?Abiotic factors may be defined as the part of the ecosystem that belongs to the category of non-living such as temperature, rainfall, pH of the soil, fire, etc.
The carrying capacity of the bats may decline in year two as compared to year one. Biotic and abiotic factors may also decline in year two as compared to year one. The population of the bat majorly depends on the biotic factor. The population may increase when the cactus flowers as well as cactus fruits increases, and the population of a bat may decrease when cactus flowers, as well as cactus fruits, decrease.
The population of bats reduces the number of cactus fruits. This is because cactus fruits may be considered as a food source for a bat population.
Therefore, the biotic and abiotic factors the scientist's monitor that influence this bat population are cactus growth and rainfall respectively.
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Which of the numbered labels is pointing to an energy producing organelle in the diagram?
A. 2
B. 9 and 10
C. 3
D. 6
Answer: 3
Explanation:
because it’s the mitochondria
Answer:
The answer is c
Explanation:
the answer is c because the thing that is labeled three is the mitochondria
identify where Specialised cells are found,the job and the adaptation of:
Nerve cell
Sperm cell
Red blood cell
Egg cell
Explanation:
i hope the link above will be helpful
In an experiment about enzyme and catalyst. If you grind the radish, you will get what?
Try this class experiment to detect the presence of enzymes as they catalyse the decomposition of hydrogen peroxide
Enzymes are biological catalysts which increase the speed of a chemical reaction. They are large protein molecules and are very specific to certain reactions. Hydrogen peroxide decomposes slowly in light to produce oxygen and water. The enzyme catalase can speed up (catalyse) this reaction.
In this practical, students investigate the presence of enzymes in liver, potato and celery by detecting the oxygen gas produced when hydrogen peroxide decomposes. The experiment should take no more than 20–30 minutes.
Equipment
Apparatus
Eye protection
Conical flasks, 100 cm3, x3
Measuring cylinder, 25 cm3
Bunsen burner
Wooden splint
A bucket or bin for disposal of waste materials
Chemicals
Hydrogen peroxide solution, ‘5 volume’
Small pieces of the following (see note 4):
Liver
Potato
Celery
Health, safety and technical notes
Read our standard health and safety guidance.
Wear eye protection throughout. Students must be instructed NOT to taste or eat any of the foods used in the experiment.
Hydrogen peroxide solution, H2O2(aq) – see CLEAPSS Hazcard HC050 and CLEAPSS Recipe Book RB045. Hydrogen peroxide solution of ‘5 volume’ concentration is low hazard, but it will probably need to be prepared by dilution of a more concentrated solution which may be hazardous.
Only small samples of liver, potato and celery are required. These should be prepared for the lesson ready to be used by students. A disposal bin or bucket for used samples should be provided to avoid these being put down the sink.
Procedure
Measure 25 cm3 of hydrogen peroxide solution into each of three conical flasks.
At the same time, add a small piece of liver to the first flask, a small piece of potato to the second flask, and a small piece of celery to the third flask.
Hold a glowing splint in the neck of each flask.
Note the time taken before each glowing splint is relit by the evolved oxygen.
Dispose of all mixtures into the bucket or bin provided.
Teaching notes
Some vegetarian students may wish to opt out of handling liver samples, and this should be respected.
Before or after the experiment, the term enzyme will need to be introduced. The term may have been met previously in biological topics, but the notion that they act as catalysts and increase the rate of reactions may be new. Similarly their nature as large protein molecules whose catalytic activity can be very specific to certain chemical reactions may be unfamiliar. The name catalase for the enzyme present in all these foodstuffs can be introduced.
To show the similarity between enzymes and chemical catalysts, the teacher may wish to demonstrate (or ask the class to perform as part of the class experiment) the catalytic decomposition of hydrogen peroxide solution by manganese(IV) oxide (HARMFUL – see CLEAPSS Hazcard HC060).
If students have not performed the glowing splint test for oxygen for some time, they may need reminding of how to do so by a quick demonstration by the teacher.
Additional information
This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology.
What words can you spell using ALL of these words: E S P E S
Answer: Seeps,
Explanation:
Answer:
YEA ID SAY SEEPS TOO HAHA
Explanation:
What are the two factors that determine the boundaries of a biome?.
Answer:
temperature and precipitation