Answer: Catalase activity increases as the temperature goes from 0'C to around 30'C. Catalase activity decreases as temperature goes from around 30'C to 100'C.
Explanation:
Catalase is work at 0'C to around 30'C temperature and its activity is decreased from above 30'C to 100'c.
How does temperature affect enzyme activity?Every organism needs to survive at optimum temperature and pH, because its critical enzymes are showing activity at a particular range, above and below this range, enzymes lost their activity.
Catalase enzyme is used for the decomposition of hydrogen peroxide into water and oxygen. It is commonly found in nearly all organisms that are exposed to oxygen.
Therefore, an optimum temperature is required for an enzyme to show its activity, so catalase is work at 0'C to around 30'C.
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What does the process of translation require?
Answer:
In addition to the mRNA template, many molecules and macromolecules contribute to the process of translation. Translation requires the input of an mRNA template, ribosomes, tRNAs, and various enzymatic factors.
Explanation:
dr. ramirez studies bird migration patterns. his studies have shown that birds are migrating at a later time because of climate change. because migration is a genetically programmed fixed-action pattern, the fact that this pattern has changed as a result of changes in the environment demonstrates that genes are:
The fact that bird migration patterns have changed as a result of changes in the environment demonstrates that genes are not entirely fixed and unchanging.
This phenomenon suggests that some aspects of behavior and physiological processes can be influenced by the environment and can respond to environmental changes, rather than being solely determined by genetic information.
This highlights the complex interplay between genetics and environment in shaping behavior and physiological processes, and that the expression of genes can be modulated by the environment. It also suggests that evolution can occur through changes in the timing and expression of existing genes, rather than just through the accumulation of new mutations.
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manufacturing an item before it is needed is an example of what form of waste?
Answer:
The answer would be overproduction
In today's world, minimizing waste has become increasingly important. Manufacturing an item before it is needed is an example of overproduction, which is a form of waste.
Waste can refer to anything that is not used efficiently or effectively, and it can be found in many different areas, from manufacturing to agriculture. In manufacturing, waste can take many different forms, including excess inventory, overproduction, and defects. Manufacturing an item before it is needed is an example of overproduction, which is a form of waste. Overproduction occurs when a manufacturer produces more goods than are needed or expected, and can result in excess inventory, increased storage costs, and other forms of waste.
One of the main reasons why overproduction occurs is due to an emphasis on efficiency and speed in the manufacturing process. Manufacturers may feel pressure to produce as many items as possible in a short amount of time, in order to meet demand or beat competitors. However, this can result in excess production that is not needed, and can lead to significant waste.
Overproduction can also lead to other forms of waste. For example, excess inventory can result in increased storage costs, as well as the need for additional labor and resources to manage and transport the extra inventory. Additionally, if the excess inventory becomes outdated or obsolete, it may need to be disposed of, which can result in environmental waste.
To minimize waste in the manufacturing process, it is important for manufacturers to carefully plan and manage their production processes, and to work to improve efficiency without sacrificing quality. By focusing on lean manufacturing principles, which emphasize minimizing waste and maximizing efficiency, manufacturers can reduce the amount of overproduction and other forms of waste in their processes. This can help to reduce costs, improve sustainability, and create a more efficient and effective manufacturing operation.
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which organelle would you expect to see a lot of in human stomach cells that secrete a lot of enzymes?
Lysosomes are membrane-enclosed organelles that contain a variety of enzymes that may degrade various forms of biological polymers, including proteins, nucleic acids, carbohydrates, and lipids.
What type of endoplasmic reticulum is most likely to be found in stomach cells?Proteins generated in secretory cells are examples of proteins synthesised by the rough endoplasmic reticulum. These include digestive enzymes generated in the stomach and protein hormones produced in the pancreas such as insulin.
The mitochondria are home to the most enzymes. In eukaryotic cells, mitochondria contain respiratory enzymes involved in ATP generation. The inner mitochondrial membrane is densely packed with respiratory electron transport enzymes.
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after the dna duplicates, how many chromatids are present in the nucleus?
After replication there are a total of 92 sister chromatids in each cell. There are 46 individual chromosomes in each cell.
What are characteristics of a primary immune response?
Answer:
The primary immune response is characterized by the appearance of neutralizing antibodies of the IgM class between days 4 and 7, several days before detection of IgG antibodies.
Explanation:
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question 15. albinism in humans is autosomal and fully recessive to normal color. a couple, who are both normal, have a daughter who is albino and a son who is normal. 15a. the probability that their normal son is a carrier of the albinism gene is
The probability that a couple's normal son is a carrier of the albinism gene is 1/4.
Let the allele for albinism be addressed by a (since it is latent), the typical skin variety allele would then be A.
A typical individual would have either AA or Aa genotype. The Aa, despite the fact that ordinary in appearance is conveying the albinism allele and is known as a transporter of the characteristic.For an ordinary couple to have brought forth a child with albinism, it implies they are both a transporter of the characteristic (Aa).
Crossing the two people in marriage:
Aa x Aa
AA Aa Aa aa
The likelihood of bringing forth a albino is, subsequently, 1/4.These probabilities continue as before for each potential birth independent of the quantity of kids they as of now have.
Hence,albinism gene carrier probability is 1/4.
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(Complete question) is:
albinism in humans is autosomal and fully recessive to normal color. a couple, who are both normal, have a daughter who is albino and a son who is normal.,the probability that their normal son is a carrier of the albinism gene is
describe the interior of a typical leaf. how do gasses move from the atmosphere to the chloroplast? (air space, mesophyll, stomata, diffusion)
The interior of a typical leaf contains stomata and mesophyll cells that allow diffusion of various components with the air space.
Large voids in the leaf are filled with mesophyll cells, which also allow gases to diffuse. Gases from the mesophyll diffuse into and out of the air space through the stomata. A leaf's surface is covered in pores that are guarded by cells. A stoma is the collective name for this pair of structures (plural: stomata).
The little apertures known as stomata are found on the epidermis of leaves. Stomata are visible under a light microscope. Stomata can be found on the stems and other portions of various plants. Stomata are crucial in gaseous exchange and photosynthesis. Through opening and closing, they regulate the rate of transpiration.
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1. what is the nernst (equilibrium) potential of a monovalent cation ( valence) at 37oc given the intracellular ion concentration is 10 mm and the extracellular ion concentration is 80 mm?
The Nernst potential of a monovalent cation with a valence of +1 at 37°C, given the intracellular ion concentration of 10 mM and the extracellular ion concentration of 80 mM, is -62.9 mV.
The Nernst (equilibrium) potential is a measure of the electrical potential difference across a biological membrane that exists when a concentration gradient of ions is present. It can be calculated using the Nernst equation:
E = [tex]61 mV \times log(\frac{ [ion]out }{ [ion]in})[/tex]
Where E is the Nernst potential, [ion]out is the extracellular ion concentration, and [ion]in is the intracellular ion concentration.
Given the intracellular ion concentration of 10 mM and the extracellular ion concentration of 80 mM at 37°C, the Nernst potential can be calculated as:
E = [tex]61 mV \times log(\frac{80 mM}{10 mM})[/tex]
= -62.9 mV
This means that the electrical potential difference across the membrane is favoring the movement of the monovalent cation from the extracellular space to the intracellular space, in order to equalize the concentration gradient and establish an electroneutral state.
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how did the mass extinction at the end of the paleozoic era set the stage for the appearance of new organisms during the mesozoic?
Underwater life and its life forms were wiped out during the mass extinction that occurred at the end of the Paleozoic Era.
The interactions between the environment and the organisms in ancient ecosystems changed, driving the remaining animals to land and bringing the new Mesozoic organisms with them. Cycads, glossopterids, early conifers, and ferns had already begun to colonise the earth by the end of the Paleozoic. The marine biota was severely damaged by the Permian extinction, which occurred 251.4 million years ago. Tabulate and rugose corals, blastoid echinoderms, graptolites, the trilobites, and the majority of crinoids perished. The largest mass extinction of living things on Earth took place towards the end of the Permian, at the transition between the Paleozoic and Mesozoic (251.0 0.4 Ma).
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A cell is short of water. Outline how osmosis will help the cell to gain water.
Answer:
When a cell is under a body region with more water than ions (solution), the water molecules move from that body region to the cell cytoplasm through the cell membrane. This makes a cell highly concentrated in water than ions.
Explanation:
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In such case, the water molecules move from outside to inside of the cell through cell membrane (semi-permeable membrane). This process is called as endosmosis by which cell gain water.
Earth's atmosphere is opaque to most types of radiation. Which type of telescope would
you never send to space? Explain vour reasoning
Answer:
The Earth's atmosphere blocks much of the light in the microwave band, so astronomers use satellite-based telescopes to observe cosmic microwaves.
Explanation:
glycogen is stored mainly in which of the following tissues? a. muscle and liver b. pancreas and kidneys c. stomach and intestine d. brain and red blood cells
A) Muscle and the liver are the two tissues where glycogen is primarily stored.
Describe glycogen.The form of glucose that is stored and composed of several linked glucose molecules is called glycogen. Your body's primary energy source is glucose (sugar). It originates from carbs, a macronutrient, which you eat in particular foods and beverages. When the glucose in the food you eat is not immediately needed by your body for energy, it is mostly stored as glycogen in your muscles and liver for future use.
Glycogenesis is the process through which your body converts glucose into glycogen. The process of glycogenolysis is how your body converts stored glycogen into energy. These two processes include a number of distinct enzymes.
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Question
Which series of words describes lengths of geologic time from longest to shortest?
Responses
period, eon, era
period, eon, era,
era, eon, period
era, eon, period,
era, period, eon
era, period, eon,
eon, era, period
eon, era, period,
Answer:
Econ, Era, Period
Explanation:
The scientists study fossils and rock layers to find major changes. Series of words describes lengths of geologic time from longest to shortest is: eons, eras, periods, epochs, ages.
The transfer of genetic material from one bacterium to another through the mediation of a vector like virus is termed as:
A Transduction
B Conjugation
C Transformation
D Translation
Transduction is the word used to describe the transmission of genetic material from one bacterium to another with the aid of a virus-like vector.
Conjugation is a sort of gene transfer, right?Through cell-to-cell contact with conjugative pili, a receiver bacterium acquires DNA from a donor bacterium in the process of conjugation. Certain plasmids or transposons mediate conjugation.
What varieties of vector gene transfer are there?Vectors are simply vehicles made to transport beneficial genetic material, such a functional gene, into a cell. Adeno-associated virus, adenoviral, lentiviral, and retroviral are the four primary categories of viral vectors; each has special traits, applications, and restrictions.
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which organs are involved in making calcitriol, the active form of vitamin d?
The organs that are involved in making calcitriol which is the active form of vitamin D may include the liver, kidney, and skin.
What do you mean by Organ?An organ may be defined as the collection of tissues that significantly make up a part of the body and performs a specific function in order to facilitate the survival of an organism. Examples of organs may include the liver, kidney, heart, etc.
Calcitriol is also known as the active form of vitamin D. It normally forms in the kidney. It is also known as 1,25-dihydroxycholecalciferol. It is a hormone that considerably binds to and activates the receptors of vitamin D in the nucleus of the cell.
The liver and kidneys convert vitamin D which is produced in the skin and taken up in the diet into the active hormone, which is called calcitriol.
Therefore, The organs that are involved in making calcitriol which is the active form of vitamin D may include the liver, kidney, and skin.
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Large rocks at the back of the beach cause the wind to slow. Windblown sand begins to drop and build small sand piles which create another windbreak and more sand is deposited. Gradually, salt-tolerant grasses will begin to stabilize the sand dune with a vast network of root systems.
The process described is called______.
A) community ecology
B) primary succession
C) ecosystems ecology
D) secondary succession
Answer:
The process described is called primary succession.
Explanation:
Primary succession is the process by which a new community of organisms forms in a previously barren or lifeless area, such as on bare rock, sand, or lava. The process typically starts with the colonization of pioneer species, which are hardy and can grow in extreme environments, and gradually gives way to more complex and diverse communities. In the process of primary succession, the organisms modify the environment to create conditions that are more favorable to other organisms, which leads to the establishment of more complex and stable ecosystems.
In the given process, the windblown sand begins to accumulate and build small sand piles, which create a suitable environment for salt-tolerant grasses to grow. These grasses have a vast network of root systems that stabilize the sand dune and create a more stable and complex ecosystem. This is an example of primary succession, where the process starts with the colonization of pioneer species and gradually gives way to more complex and diverse communities.
The process described in the scenario is called primary succession. The correct option is B.
What is primary succession?
Primary succession refers to the process of ecological succession that occurs in an area devoid of any soil or organisms. It typically begins with the colonization of pioneer species, such as grasses or lichens, which gradually create conditions suitable for the establishment of more complex plant communities. In the scenario given, the large rocks at the back of the beach slow down the wind, allowing windblown sand to accumulate and form small sand piles. Over time, this process leads to the development of sand dunes and the establishment of salt-tolerant grasses, which stabilize the dunes with their root systems. This is an example of primary succession occurring in a coastal ecosystem.Therefore, the correct option is B.
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which is a nitrogenous waste that is transported in the plasma?
Answer:
urea
Explanation:
nitrogenous waste compounds such as urea are produced by the breakdown of various substances in the body which are then carried in the plasma to the kidneys to be excreted
explain homeostasis and negative feedback loop in regards to temperature in a human with an example of walking from the hot summer heat outside to a cold air conditioned room inside.
Negative feedback loops are frequently involved in homeostasis maintenance. The stimulus or cue that sets off these loops causes people to react negatively.
In homeostatic systems, such as thermoregulation, negative feedback loops are used in some processes (if body temperature changes, mechanisms are induced to restore normal levels) blood sugar control (insulin lowers blood glucose when levels are high ; glucagon raises blood glucose when levels are low). The body has a negative feedback system that regulates body temperature. When the hypothalamus senses that the body is getting too hot, the body starts to perspire to try to bring the temperature back down to a healthy level.
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forms channels through the membrane is descriptive of a. integral membrane proteins b. peripheral membrane proteins c. both kinds of membrane proteins
Integral membrane proteins can form channels through the membrane. These proteins are embedded within the lipid bilayer of the cell membrane and play a role in the transport of ions, molecules, and other substances across the membrane.
The channel formed by the integral membrane protein allows for the passive or active transport of these substances, depending on the type of channel.
Peripheral membrane proteins, on the other hand, are not embedded within the lipid bilayer but instead are attached to the surface of the membrane via hydrophobic or electrostatic interactions. They do not form channels through the membrane but instead play a role in regulation, signaling, and other cellular processes.
So, the statement "forms channels through the membrane" is descriptive of integral membrane proteins.
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some antibiotics control bacterial infections by attacking the ribosomes of the bacteria. why don't these antibiotics also harm the cells of human patients? [select all that apply.]
The antibiotics do not harm the human cells because: (2) Human cells do not have the same ribosomes as the bacterial cells; (4) Human cell membranes prevent antibiotics from entering the cells.
Antibiotics are the chemical agents that prevent or slow down the growth of living organism inside the living body. Antibiotics can only harm the bacterial cell walls because they are made up of such components. Thus, the human cells can prevent the antibiotic entry.
Ribosomes are the components of cells involved in synthesis of proteins. These can be of two types: 70S and 80S. The ribosomes are found in both prokaryotic as well as eukaryotic cells. Ribosomes are composed of proteins and RNA.
The given question is incomplete, the complete question is:
Some antibiotics control bacterial infections by attacking the ribosomes of the bacteria. Why don't these antibiotics also harm the cells of human patients? [select all that apply.]
Human cells lack ribosome.Human cells do not have the same ribosomes as the bacterial cells. Ribosomes in human cells are attached to ER that provides protection. Human cell membranes prevent antibiotics from entering the cells.The acidity of human stomach breaks the antibiotic before it can harm the cells.To know more about ribosomes, here
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Select the correct answer.
How does the melting of ice caps near the North Pole affect the salinity of the ocean?
A.
Salinity decreases because freshwater flows into the ocean.
B.
Salinity increases because salt from the ice caps flows into the ocean.
C.
There is no change in the ocean’s salinity with this process.
D.
Salinity increases because of the stored pockets of air and salt.
The melting of ice caps near the North Pole affects the salinity of the ocean by decreases because freshwater flows into the ocean which is therefore denoted as option A.
What is Salinity?This is also known as saltiness and it is referred to as the amount of salt dissolved in a body of water, called saline water. It is usually measured in g/L or g/kg.
The melting ice causes freshwater to be added to the seawater in the Arctic Ocean which flows into the North Atlantic. The added freshwater makes the seawater less dense thereby decreasing the salinity in this scenario.
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Order the following features by the type of volcano they are associated with. a. pyroclastic flow B. Lava c. fiery fountain d.Strombolian eruptions e. side eruption F. pillow basalt g. felsic lava
The following characteristics are according to the type of volcano they are related to pyroclastic flow, lava stratovolcanoes, and Hawaiian volcanic eruptions associated with fiery fountains.
A volcano is a rupture in the coating of a terrestrial-mass object, in the way that Earth, admits new basalt, powder remains after a fire, and smoke to escape from a magma room beneath the surface. On Earth, volcanoes are usually raised places fundamental plates are diverging or gathering, and most are established undersea.
The molten rock (magma) in flood-basalt eruptions issued surely. This admitted vapor that was captured in it was expected released surely also. This volcano matter produces "fire-fountain" eruptions – a source of magma rising large groups of meters (large groups of yards) into the air.
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Topic: SARS-CoV-2
* What is this?
* what is virus?
* Why it is contagious?
* How to stop spreading the disease?
* What are the possible symptoms of the disease?
* How to prevent?
* Risk factors.
* Conclusion.
Answer:
SARS-CoV-2 is the virus that causes the disease COVID-19.
A virus is a microscopic infectious agent that can reproduce only inside the living cells of a host organism.
SARS-CoV-2 is contagious because it spreads from person to person through respiratory droplets generated when an infected person talks, coughs, or sneezes.
To stop the spread of the disease, it is recommended to practice good respiratory hygiene, such as covering your mouth and nose with a tissue when you cough or sneeze and throwing the tissue away immediately. Washing hands regularly with soap and water for at least 20 seconds is also crucial. Additionally, wearing a mask and practicing social distancing can help prevent the spread of the virus.
The symptoms of COVID-19 can vary from mild to severe and can include fever, cough, shortness of breath, body aches, loss of taste or smell, and more.
To prevent COVID-19, it is recommended to get vaccinated, follow the guidelines set by health authorities, and practice good hygiene such as regular hand washing and wearing masks in public settings.
Risk factors for COVID-19 include age, underlying health conditions, and exposure to crowded settings or close contact with infected individuals.
In conclusion, SARS-CoV-2 is a contagious virus that causes COVID-19 and can spread from person to person through respiratory droplets. To stop the spread of the disease, it is important to practice good hygiene and follow the guidelines set by health authorities. Additionally, getting vaccinated and being aware of risk factors can help prevent the spread of COVID-19.
the relationship between fig trees and fig wasps is facultative. group of answer choices true false
the relationship between fig trees and fig wasps is facultative is true.
What connection exists between the fig tree and the fig wasp?Mutualism is seen in the interaction between the fig tree and the wasp, which both deposits its eggs and pollinates the fig's flower. On the other hand, the fig permits the wasp's larva to feed on seeds in addition to shelter (fruit) for oviposition.
With their fig hosts, fig pollination wasps develop obligatory symbioses. About 75 million years ago, this mutualism first appeared. Female fig wasps fly considerable distances to transmit horizontally across hosts, in contrast to many other close symbioses that entail vertical transmission of symbionts to host progeny.
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Which hormone increases basal metabolic rate in the body?
Are humidity sensing bathroom fans worth it?
Answer:
If your bathroom is in an area with a lot of humidity, it is good to get a humidity timer and set it on not-so-sensitive setting. If the humidity level in your bathroom is always up and ventilation is needed all the time, a fan with humidistat is a must.
Explanation:
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13) A hawk dives toward a snake. When the
hawk is at a height of 200 feet the snake
sees the hawk, which is diving at 105 ft/s.
Estimate the time the snake has to escape.
A hawk dives toward a snake. When the hawk is at a height of 200 feet the snake sees the hawk, which is diving at 105 ft/s. The snake has to escape in 1.54 sec.
What is Snake?
Any of the more than 3,400 species of reptiles in the suborder Serpentes known as snakes, often known as serpents, are differentiated by their lack of limbs and highly elongated bodies and tails. Snakes are grouped with lizards in the order Squamata and are an example of a lizard that has undergone structural reduction, simplicity, and loss along with specialisation during the course of evolution. However, not all legless reptiles are snakes, and not all snakes lack external limbs.
h= -16t² + vt + s
-16t²-105t+200=0
a=-16,b=-105 and c=200
Solving this quadratic equation using quadratic formula we get
t= (105+154.35)/-32 or (105-154.35)/-32
But t cannot be negative
Hence t=(105-154.35)/-32= 1.54 seconds
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Douglass married anna. to where did they move? How many children did they have?
Fredrick had previously attempted to flee, but he was unsuccessful until Anna assisted him. Anna accompanied Frederick once he arrived in New York; they later got married and settled to New Bedford, Massachusetts.
Together, they had five children. Oscar-winning actors Michael Douglas and Catherine Zeta-Jones have been married for nearly 20 years, have two children, and share the birthday of September 25. Frederick Douglass and Anna Murray relocated to Washington, DC in 1872 and bought two row homes at 316 and 318 A Street NE.
The Douglasses relocated to a residence known as Cedar Hill in the Anacostia area of Washington, DC17 in 1877 and remained there for the rest of their lives.
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difference between epithelial and connective tissue is
Answer: The difference between Epithelial and connective tissues is that epithelial tissue forms a barrier around our body to keep external micro-organisms out of the body’s reach and covers most organs and cavities in the body whereas connective tissues are trained to sustain and attach to various body parts.
Explanation: