Answers
Explanation:
I think your answer is D, and let me explain why.
Heat can denature proteins quickly because proteins have very specific temperatures at which they act best. If the temperature rises too high/falls too low with respect to that threshold, then that will cause the proteins to stop working properly and eventually die.
pH is also very important with how proteins work, and it's the same reason as heat. Proteins have a certain range of pH's that keep them healthy and working, but as soon as the pH changes dramatically outside of that range, the proteins will be quickly denatured.
And lastly, organic solvents can denature proteins as well (e.g. alcohol), which makes sense because they are solvents (a solvent is something that dissolves other substances). I'm not sure about the exact chemistry / biological responses behind it, but it's what would be expected of a solvent.
With all of this in mind, I think your answer should be D!
Related Questions
Eukaryotes have three nuclear RNA polymerases. The primary function of RNA polymerase II is transcription of _____.
Answers
Answer: the answer is protein-coding genes
(if this is right mark brainliest :))
Eukaryotes have three nuclear RNA polymerases. The primary function of RNA polymerase II is transcription of protein coding genes
what are the function of RNA polymerase ?there are Three different types of RNA polymerases (RNAPs), which transcribe eukaryotic genes, such as RRNA genes are transcribed by RNA polymerase I.
mRNA, miRNA, snRNA, and snoRNA genes are mainly transcribed by RNA polymerase II, while tRNA and 5S rRNA genes are transcribed by RNA polymerase III.
short RNAs as well as the protein coding genes are both transcribed by RNA polymerase II.
A Separate type of RNA polymerases are present in chloroplasts and mitochondria, where they specifically transcribe the DNAs of those organelles.
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Which best defines matter?
A. All the living things on the planet
B. All solid objects that can be seen
C. Anything in the atmosphere
OD. Anything that takes up space and has mass
SUBM
Answers
Answer:
Anything that takes up space and mass
Explanation:
In science matter takes up space either by a solid, liquid, gas, plasma etc. And it all has mass no matter how small or how much it has.
what are the mechanisms that halophiles typically employ to grow in habitats with high concentrations of salt
Answers
Answer:
Synthesis Of Osmoprotectants
Explanation:
One Mechanism Halophiles use to survive in high concentrations of salt is the Synthesis Of Osmoprotectants, which are also known as compatible solutes. These work by balancing the internal osmotic pressure with the external osmotic pressure, making the two solutions isotonic, or close to it.
The continental crust covers ____ of the earth's surface a. 40% b. 50% C. 60% d. 70%
Answers
Answer:
a. 40 percent
Explanation:
Answer:
a. 40%
Explanation:
The continental crust covers 40% of the Earth's surface.
At 25 to 70 km, continental crust is considerably thicker than oceanic crust, which has an average thickness of around 7–10 km. About 40% of Earth's surface area and about 70% of the volume of the Earth's crust is the continental crust. Most continental crust is dry land above sea level.
What is the role of reverse transcriptase in DNA technologies?
A. To unzip DNA strands
B. To find mRNA
C. To produce proteins
O D. To make cDNA
Answers
Answer:
D...........................................................................
Explanation:
Reverse transcriptase may be a DNA polymerase enzyme that transcribes single-stranded RNA into DNA.
What is reverse transcriptase?
This enzyme is in a position to synthesize a double-stranded DNA into a single-strand DNA once the RNA is transcribed in 1st step. Found in retroviruses, like the human immunodeficiency virus (HIV).Reverse transcriptase is used to form a cDNA copy of the mRNA. The cDNA sample is then amplified by PCR. This yields multiple copies of cDNA without intronsThus, we can conclude that the correct option is D.
To make cDNA is the role of reverse transcriptase in DNA technologies.
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It takes about [?] hours for food to be
ingested, digested, and leave the small
intestine.
A. 8
B. 1-2
C. 24
D. 5.
Answers
Answer:
A 6 to 8 hours. After you eat it takes about 6 to 8 hours for food to pass through your stomach and small intestine.
Describe the sliding filament model of muscle contraction. What role do acetylcholine and acetylcholinesterase play in muscle contractions
Answers
Answer:
It Is me the Explanation Wizard (づ｡◕‿‿◕｡)づ
Explanation:
Hey (☞ﾟ∀ﾟ)☞ It's the Explanation Wizard here for your troubles I don't wanna waste time so here is my answer+explanation that I have personally wrote for you.The first question you asked here's the a+e The sliding filament model describes the process used by muscles to contract. It is a cycle of repetitive events that causes actin and myosin myofilaments to slide over each other, contracting the sarcomere and generating tension in the muscle. second a+e for second question When the nervous system signal reaches the neuromuscular junction a chemical message is released by the motor neuron. The chemical message, a neurotransmitter called acetylcholine, binds to receptors on the outside of the muscle fiber. That starts a chemical reaction within the muscle. Explanation Wizard out
One of your homework questions is reproduced below.
All six answers were correct. Can you
think of two more conceivable answers to the question below?
Many promoters are regulated by proteins that bind to adjacent DNA sequences. Which of the following is correct?
A. Some transcriptional regulators stimulate transcription and do so only when binding a low molecular weight ligand.
B. Some transcriptional regulators stimulate transcription and do so only when NOT binding a low molecular weight ligand.
C. Some transcriptional regulators inhibit transcription and do so only when binding a low molecular weight ligand.
D. Some transcriptional regulators inhibit transcription and do so only when NOT binding a low molecular weight ligand.
E. Some transcriptional regulators stimulate transcription and do so only when phosphorylated.
F. Some transcriptional regulators repress transcription and do so only when phosphorylated.
It’s not multiple choice, I need help coming up with two more answers that are true
Answers
Answer:
Phosphorylation activation:
1- p53 (transcriptional activator)
2- CDK8-cyclin C (transcriptional inhibitor)
Explanation:
Phosphorylation is a well-studied post-translational modification mediated by a protein called 'kinases' which phosphorylates specific protein substrates. This post-translational modification (phosphorylation) acts as a reversible switch capable of modulating protein function. Phosphorylation at specific amino acid residues (e.g., tyrosine, serine) controls protein function by triggering conformational changes in the phosphorylated protein. For example, P53 is a transcription activator activated by phosphorylation at multiple sites in its N-terminal region. P53 activates transcription of different genes by modulating protein-protein interactions with different substrates (e.g., MDM-2, CBP/p300, TFII). On the other hand, cyclins are proteins that have no enzymatic activity but are able to activate cyclin-dependent kinases (CDKs) by binding to them. CDK8-cyclin C (SRB10-SRB11) is a negative regulator of transcription that is able to inhibit transcription by phosphorylating the carboxy-terminal domain of the largest subunit of RNA polymerase II (Pol II) before the formation of the preinitiation transcriptional complex.
What is a technique that aims to reduce viable spoilage microorganisms so they are unlikely to cause disease?
Answers
Answer:
Pasteurization
Explanation:
Food products such as milk, wine and beverages may be subjected or placed on a heat treatment process with the aim of reducing active microorganisms present in them. This will improve the quality of food materials and also prolong its life span. This heat treatment process help destroy pathogenic microorganisms and those which are responsible for food spoilage. Once this food spoilage microorganisms are destroyed, the good products will have enhanced or prolonged life span of the food product and also reduces their risk of causing disease.
TIME REMAINING
56:39
Which statement is true about inorganic compounds?
They are not made of atoms.
They contain carbon.
They are not made from living things.
They are all elements.
Answers
Answer:
They are all elements
Explanation:
1) INORGANIC COMPOUNDS ARE COMPOUNDS THAT ARE NOT MADE UP OF CARBON AND HYDROGEN.
2) They are also not made from living organisms, it's rather organic compounds that are made from living things
3) And for the 1st one, EVERYTHING! is made up of atoms because that is smallest unit or basic unit of matter
4) And so far all the inorganic compounds I've seen are elements, and that is the only valid answer.
Answer:
C
Explanation:
They are not made from living things.
What do smooth muscle cells look like under a microscope?
Answers
Blood banks dispose of blood that has low levels of bisphosphoglycerate. What would be the probable reason for doing so
Answers
Answer:
Erythrocytes low in BPG does not unload O2 very well.
Where does the egg receive its energy from?
options:
a. The ovum contains a large quantity of cytoplasm, which contains nutrients for the first days of development after fertilization. The cytoplasm of the ovum contains over 140 000 mitochondria to produce ATP required for growth.
b. The uterus contains over 140 000 mitochondria to produce ATP and supplies this to the egg for growth.
c. Similar to sperm it receives its energy from fructose through its path to the uterus.
d. The ovum contains a large quantity of fimbria, which contains nutrients for the first days of development after fertilization.
Answers
Answer:
Until attachment to the uterus, the developing organism is on its own. That means it needs to supply its own energy, so the cytoplasm of the human egg cell contains many energy-generating factories called mitochondria. Those mitochondria come only from the mother.
a. The ovum contains a large quantity of cytoplasm, which contains nutrients for the first days of development after fertilization. The cytoplasm of the ovum contains over 140 000 mitochondria to produce ATP required for growth.
Explanation:
Which of the following processes releases carbon dioxide as waste?
Cell division
Cellular respiration
Photosynthesis
Transpiration
Answers
Answer:
The answer is Cellular Respiration
Difference between plants in a tropical location, a temperate location, or the tundra?
Answers
Answer:
a tropical location as an area near the equator a temperate location is any area that that lies between the tropical and polar zones and a tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons.
urine is made of _________
Answers
Answer:
Answer is A
Explanation:
Urea consists of carbon, nitrogen and oxygen. You can find it in urine, sweat, blood and milk in mammals. In its most concentrated form, it is urine. Urea is a crystalline compound, and the nitrogen content is always at least 46 percent when dry.
Pharmacokinetics and pharmacodynamics of a new formulation of an investigational drug most likely refers to which clinical phase of a study in humans?
Answers
Answer:
The correct answer is - Phase I.
Explanation:
Clinical phase are group of stages in which scientists or researchers conduct various experiments with a health intervention to get enough evidence for a process to use as a medical treatment. Clinical research is conducted on medical devices, drug candidates, and vaccine candidates.
In the phase I, in this phase intervention takes place in human subjects. These subject usually observed until several half-lives of the drug have passed. This phase is designed to assess the tolerability, pharmacokinetics, safety (pharmacovigilance), and pharmacodynamics of a drug
define the photosynthesis?
Answers
Answer:
photosynthesis is the process in which green plants use sunlight to create foods from carbon dioxide and water, for themselves. Photosynthesis in plants usually involves the green pigment, called chlorophyll, and generates oxygen as a byproduct.
Explanation:
Photosynthesis is when green plants use sunlight to create food from carbon dioxide and water.
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A variety of mice can have either gray fur (G) or white fur (g). Which words describe the genotype of a mouse that inherits two of the alleles for white fur?
A. Homygous dominant
B. Homoygous white
C. Heteozygous Recessive
D. Heteozygous gray
Sorry about the misspelling It doesnt allow some words
Answers
Answer:
heterozygous Recessive
Answer:
I think the answer is Homygous dominant
Explanation:
Compare and contrast the energy needs of plant and animal cells.
Answers
Answer:animal cells need more
Explanation:due to constant movement
fungsi vakuol mengecut dalam paramecium
Answers
.Discuss the THREE types of evidences of evolution to show that all organisms are related to each other: fossil record, comparative anatomy, AND molecular evidence. ALSO, give an example of each.
Answers
Answer:
1. fossil record:
Fossils are organisms that get buried in sedimentary rocks. These are formed at different times. The study of fossils existing in the different rock layers indicates the time period when they existed. Thus different life forms have been formed at different times in the history of the earth.
fossil bird Archaeopteryx is considered as a connecting link between reptiles and birds indicating that birds evolved from reptiles.
2 comparative anatomy:
Homologous organs - such organs that have different embryonic origins but play different roles.
The forelimbs of whale, bat, deer, rabbit
Homologous organs - such organs that are the same in structure and embryonic origin but play similar roles.
wings of a bird and wings of the insect. The wings of the birds are modified
3. DNA sequence can be helpful in finding relations among organisms. Biogeography also helps in identifying the geographical distribution of organisms, to know how and when species may have evolved.
Question 28 of 30
The diagram below shows part of the process of DNA transcription. Which
mRNA base will go in location 1?
DNA
TCHCIGATI
ACACAC123
mRNA
A. Uracil
B. Cytosine
C. Thymine
D. Adenine
Answers
Answer:
uracil
Explanation:
uracil is complenentary to adenine in transcription
The diagram below shows part of the process of DNA transcription. Uracil mRNA base will go in location 1.
What do you mean by DNA transcription?The process of turning a piece of DNA into RNA is called transcription. Messenger RNA is said to be produced when DNA segments are transcribed into RNA molecules that can encode proteins.
DNA record is the cycle by which the hereditary data held inside DNA is re-composed into courier RNA (mRNA) by RNA polymerase. After that, this mRNA leaves the nucleus and serves as the foundation for DNA translation.
The nucleus is where transcription takes place. An RNA (mRNA) molecule is produced by using DNA as a template. During record, a strand of mRNA is made that is corresponding to a strand of DNA.
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5. A typical incandescent light bulb produces
A.an absorption spectrum
B.a discontinuous spectrum
C.a continuous spectrum
D.an emission spectrum
Answers
Genetic drift in a population affects the gene pool in which of the following ways?
decrease in genetic variation
increase in genetic variation
increased in mutations
decreased in gene flow
Answers
Answer:
Sometimes, there can be random fluctuations in the numbers of alleles in a population. These changes in relative allele frequency, called genetic drift, can either increase or decrease by chance over time. ... Genetic drift can result in the loss of rare alleles, and can decrease the size of the gene pool.
Genetic drift in a population affects the gene pool by decreasing genetic variation.
What is genetic drift?Genetic drift is a mechanism of evolution that occurs due to random fluctuations in the frequency of alleles (alternative forms of a gene) in a population. It refers to the random changes in the frequency of alleles that occur by chance alone, rather than through natural selection or other selective pressures.
Genetic drift is more likely to occur in smaller populations, where chance events can have a greater impact on the frequency of alleles. The effects of genetic drift can result in the loss of certain alleles from a population over time, or the fixation of one allele in a population, meaning that it becomes the only allele present at that particular gene locus.
Two forms of genetic drift are bottleneck effect and founder effect. In the bottleneck effect, a sudden reduction in population size can cause the loss of genetic diversity, while in the founder effect, a small group of individuals colonizes a new area, leading to the establishment of a new population with a limited subset of the genetic diversity present in the original population.
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Bacteria are organisms that reproduce asexually. How is it better for them than reproducing sexually.
Answers
Answer: they don't have a reproductive system
Explanation:
Choose all the right answers.
When the leaf of a fern touches the ground, it may produce a new plant:
by budding from its stem
by growing roots at the point of contact
by planting a spore
by vegetative reproduction
Answers
Answer:
I think it is by planting a spore
During which process is mRNA converted into a sequence of amino acids for protein production?
transcription
translation
DNA replication
mRNA synthesis
Answers
Answer:translation
Explanation: Translation is the process by which nucleotide sequence of mRNA (messenger ribonuceic acid) is converted into the amino acid sequence
Answer:
B translation
Explanation:
because it is a process in which an mRNA molecule is used to assemble amino acids into polypeptide chains.
White blood cells work by recognizing invading pathogens by their surface fragments, called __________.
Answers
Answer:
white blood cells that systematically envelop and kill pathogens such as bacteria, viruses, and fungi, worn-out body cells, and cells that have become cancerous. their surface fragments, called antigens, literally antibody generators.
Explanation:
Organisms use glucose to store and transport energy.
True
False
Answers
Answer:
Glucose and ATP are used for energy by nearly all living things. Glucose is used to store and transport energy, and ATP is used to power life processes inside cells. Many autotrophs make food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose.
Explanation:
Most organisms use glucose and ATP for energy. ATP powers cells, and glucose stores and transports energy. Photosynthesis converts sunlight into glucose for many autotrophs.
What do organisms use to store and transport energy?All living things use ATP and glucose as energy sources. Energy is stored and transported by glucose, and cellular life functions are powered by ATP. Through the process of photosynthesis, which converts solar light energy into chemical energy that is stored in glucose, many autotrophs produce food.
Glycogen is the name given to this form of glucose that is stored and is composed of several linked glucose molecules. Glycogen is broken down to release glucose into the bloodstream, which is then used as fuel for the cells, when the body needs a sudden surge of energy or when the body isn't obtaining glucose from food.
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