T/F. Banting's method of isolating insulin involved a surgical procedure to tie off ducts in the pancreas, waiting several weeks, then removing the pancreas
Answers
Banting's method of isolating insulin, which involved tying off ducts in the pancreas, waiting several weeks, and then removing the pancreas, is false. Banting, Best, and Macleod first collaborated to begin their research, attempting to determine how to remove insulin from a dog's pancreas.
Their method involved blocking the pancreatic duct in order to kill other substances in the pancreas that would destroy insulin while leaving the islets alone. The remaining extract would then be administered to other dogs who didn't produce any insulin because their pancreas had been removed in order to test its effects on blood sugar levels.
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Related Questions
Genes contain specific instructions for how to make(1 point)
nucleotides.
proteins.
gametes.
carbon.
Question 2
A) Epigenetic changes are generally(1 point)
not heritable genetic changes that are specific to an individual.
heritable "on/off switches" for gene sequences due to environmental factors.
not heritable changes in gene structure of a population.
heritable changes in genetic sequences of a population.
Question 3
A) Meiosis produces(1 point)
hydrogen molecules
RNA
skin cells
gamete cells
Question 4
A) Which factor could increase the possibility of mutations in your offspring?(1 point)
nothing because mutations are not inherited
having a mutation on a non-gamete cell
smoking tobacco
nothing because mutations are random
Question 5
A) Epigenetics are different than mutations in that mutations:(1 point)
can be inherited
can change traits
cannot be inherited
can change DNA sequences
Answers
Answer:
1. proteins
2. heritable on/off switches for gene sequences due to environmental factors
3. gamete cells
4. smoking tobacco
5. can change DNA sequences
1. Genes contain specific instructions for how to make proteins.
Some genes contains information to make proteins.
2. Epigenetic changes are generally heritable "on/off switches" for gene sequences due to environmental factors.
Epigenetics is defined as the study of the behaviors and the environment which can cause changes in the way that genes work.
3. Meiosis produces gamete cells.
Meiosis is defined as a cell division process which lowers the chromosomes cell number in the parent by half and also produces four gamete cells.
4. Smoking tobacco increase the possibility of mutations in your offspring.
Mutation is a alteration or change in the DNA. Consuming tobacco may lead to changes in the chromosome patterns in the DNA.
5. Epigenetics are different than mutations in that mutations can change DNA sequences.
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Using the Gizmo, create a fruit fly with the correct genotype. Explain how you did it
Answers
Answer:
I did 4 crossovers and followed the genotype. That's how I did it.
Explanation:
Answer:
I did 4 crossovers and followed the genotype that the gizmo gave to me.
Explanation:
Hope this helped! :)
To______
means to allow another
road user to cross or use an intersection or
roadway before you do.
Answers
Answer: Yield
Explanation: Yielding is an important traffic rule that promotes safety and smooth flow of traffic. It is an important practice that helps maintain order on the roads and promotes safety for all road users. It's essential to be attentive, follow traffic signs and signals, and be aware of the right of way rules in your area to ensure a safe driving experience.
When you yield, you give the right of way to another driver or pedestrian. This means that you let them go first, even if it might inconvenience you or require you to slow down or stop.
Yielding is typically required in situations such as:
Yielding to pedestrians: When you approach a crosswalk or intersection where pedestrians are waiting to cross, you should yield to them and allow them to safely cross the road before you continue to drive. Drivers must yield to pedestrians within a crosswalk.
Yielding at intersections: When you approach an intersection where there are other vehicles, you should yield to those already in the intersection or approaching from the right. This helps prevent accidents and ensures a smooth flow of traffic.
Yielding when merging: When merging onto a highway or another lane, you should yield to the vehicles already in that lane. This allows for a safe and efficient merging process.
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Which New York State landscape region is composed of mostly horizontal sedimentary bedrock and has a high elevation?
1 Hudson Highlands
2.Manhattan Prong
3. the Catskills
4.Taconic Mountains
Answers
The Catskills is the New York State landscape region that is composed mostly of horizontal sedimentary bedrock and has a high elevation.
Explanation:The New York State landscape region that is composed of mostly horizontal sedimentary bedrock and has a high elevation is the Catskills.
The Catskills are located in southeastern New York and are known for their scenic beauty and outdoor recreational opportunities. The region is primarily made up of sedimentary rocks, such as sandstone and shale, which were deposited millions of years ago.
The Catskills have a high elevation, with the highest peak, Slide Mountain, reaching over 4,000 feet. This elevation contributes to the region's cooler temperatures and the formation of numerous waterfalls and deep valleys.
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which of the following cell types would have full complementary number of chromosomes?
a. haploid cell
b.somatic cell
c.gamete
d. sperm
Answers
macrophages are motile cells that crawl within tissues of the cells. hepatocytes are stationary cells that are anchored in place within the tissue. compared to hepatocytes, macrophages would likely have more of which cytoskeletal filament?
Answers
Compared to hepatocytes, macrophages would likely have more actin filaments.
Actin filaments (F-actin) are linear polymers of globular actin (G-actin) subunits that are found in muscle and non-muscle cells as thin filaments that are a component of the contractile apparatus (see contractile bundles).
Actin filaments are particularly prevalent below the plasma membrane, where they organize into a network that supports the cell mechanically, controls the shape of the cell, and permits movement of the cell surface, allowing the cell to migrate, ingest particles, and divide. Similar actin proteins are assembled in a long spiral chain to form actin filaments.
Similar to microtubules, actin filaments have plus and minus ends, with the plus end of a filament exhibiting more ATP-powered growth.
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a gardener removes the terminal buds on a group of chrysanthemums but leaves all axillary buds intact. how is this likely to affect the plants? they will die. their growth will accelerate. their growth will slow down. they will become shorter and bushier. they will become taller and spindly.
Answers
A gardener prunes a clump of chrysanthemums' terminal buds but leaves all auxiliary buds intact so that they will grow shorter and bushier.
What occurs to the plants if a terminal bud is removed?The plant grows bushier and lateral buds grow more quickly when a terminating bud is cut off. However, removing auxiliary buds or branches causes growth to concentrate on the terminal bud, which causes the plant to grow taller or longer.
Describe axillary buds ?lateral or axillary buds. Axillary buds, which are embryonic side shoots, can be discovered in the angle formed between every leaf and the stem. A condition known as apical dominance prevents the development of most axillary buds, causing them to go dormant.
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A population of animals has a long gestational period, and individuals live mostly alone. How will this affect the population size? High birth rate, increase in individuals Low birth rate, decrease in individuals Short births, decrease in individuals Long births, increase in individuals.
Answers
This situation will produce a low birth rate, and likely decrease in individuals. It is a K-selected species.
K selected speciesK-selected species are species in which the populations fluctuate in values near to the carrying capacity.
These species (K-selected) can be characterized by having long gestation periods, slow maturation and long life spans.
Occasional breeding is also a characteristic of K-selected species.
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Answer: it is the low birth rate, decrease in individuals
Explanation: I took the test
What data or test would you seek to determine whether or not a trait is sex linked? Select one: a. karyotype b. pedigree c. blood test d. DNA sequence
Answers
B) You would seek to determine whether a trait is sex-related using pedigree data or a test.
From a pedigree, how can you tell if a trait is sex-linked?A sex-linked pedigree will primarily have affected males, and the female carriers will typically be marked with a half-shaded circle.
In a pedigree, how can you tell if a sex-linked trait is dominant or recessive?The son must have only inherited his allele from his mother if the trait is x-linked, and the father may not be affected. RECEPTIVE WITH X-LINKS: The disease must be X-linked recessive when a affected non-founding son has two parents who are unaffected.
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The brains of patients with Alzheimer's disease show degradation of microtubule function, in part from over-phosphorylation of the microtubule-associated protein, tau. What might happen to neurons when microtubule function is disrupted? In your answer, be specific about which structures within neurons are likely to be affected by microtubule disruptions and how they would be affected, and explain your reasoning. (You should be able to answer this question in no more than one brief paragraph.)
Key points: (again these are key points in answering the one question)
(1) If microtubules are disrupted, this would be expected to affect the structure of the neuron. Since tau is limited to axons, the axon should be abnormal, but the dendrites should be normal.
(2) If axonal microtubules are damaged, this would also interfere with axonal transport.
(3) Without axonal transport, the synapses could not be maintained.
Answers
Disruption of microtubule function in neurons, as seen in Alzheimer's disease due to over-phosphorylation of the microtubule-associated protein tau, can lead to structural and functional changes in the affected neurons.
Microtubules play a crucial role in maintaining the structural integrity of neurons, particularly in the axons. Therefore, when microtubules are disrupted, the axon's structure would be affected, while the dendrites would remain relatively normal.
Microtubules are dynamic structures composed of tubulin proteins that provide structural support and facilitate intracellular transport within neurons. In Alzheimer's disease, over-phosphorylation of tau protein leads to the formation of abnormal tau tangles, which disrupt the integrity of microtubules. Since tau is mainly found in axons, the disruption primarily affects the axonal microtubules. Consequently, the axon's structural integrity would be compromised, while the dendrites, which have a different microtubule arrangement, would remain relatively unaffected.
Furthermore, microtubules are critical for axonal transport, the process by which essential molecules, organelles, and vesicles are transported along the axon to maintain neuronal function. Disrupted microtubules would impair axonal transport, leading to the inability to deliver necessary components to the synapses. Synapses are crucial for neuronal communication, and without proper maintenance, the synaptic connections between neurons would be compromised.
Overall, disruptions in microtubule function in neurons, as seen in Alzheimer's disease, can have detrimental effects on the structural integrity of axons, interfere with axonal transport, and ultimately lead to the impairment of synaptic maintenance and neuronal communication.
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According to Hess’s theory, what might happen if the magma under a mid-ocean ridge cools?
Answers
Answer: The plates on either side of the ridge might stop moving.
Explanation:
Answer:
The plates on either side of the ridge might stop moving.
Explanation:
research on children reared by lesbian mothers compared with children reared by heterosexual couples generally indicates that .
Answers
Research on children reared by lesbian mothers compared with children reared by heterosexual couples generally indicates that there are no significant differences in the developmental outcomes or well-being of the children.
Studies have consistently shown that children raised by lesbian mothers are just as happy, healthy, and successful as those raised by heterosexual couples. In fact, some studies suggest that children of lesbian mothers may even have better outcomes in terms of their social and emotional development.
It is important to note that the quality of parenting and family environment, rather than parental sexual orientation, is the key factor in determining the well-being of children.
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which organelle is responsible for assembling proteins
Answers
Many living organisms are adapted to specific temperatures. This is an example of which characteristic of life?
a. use of energy
b. reproductive ability
c. growth and development
d. maintaining homeostasis
Answers
Answer:
The answer is C growth and development
which of the following is not considered to be a radioresistant cell? group of answer choices a. bone cells b. blood cells c. muscle cells d. nerve cells
Answers
The correct option is (b). The blood cells are not considered radioresistant cells.
Radioresistant cells: Radiation therapy is used to damage cancerous cells' DNA in order to prevent them from reproducing. However, some cells are more resistant to radiation therapy than others. These cells are referred to as radioresistant cells. The following are some radioresistant cell examples:Bone cells: Osteocytes are the primary bone cells, and they're responsible for maintaining bone tissue. They're less responsive to radiation therapy than other types of cells.Blood cells: Blood cells, platelets, and white blood cells are all included in blood. Radiation affects them at varying rates. However, since these cells are more sensitive to radiation, they are not considered radioresistant cells.Muscle cells: Myocytes or muscle cells are the primary cell type found in muscles. They are less responsive to radiation therapy than other types of cells.Nerve cells: Neurons or nerve cells are the primary type of cell in the nervous system. They are less responsive to radiation therapy than other types of cells. They can be considered radioresistant cells.Conclusion:
Thus, from the above discussion, we can say that blood cells are not considered radioresistant cells.
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Select the best answer for the question 7. Which side of an epithelial cell in the nasal cavity faces the cavity itself and is covered in cilia to trap debris or pathogenic microorganisms before they enter the body? A. Lateral O B. Basal C. Apical D. Squamous
Answers
what is a structure and behavior of an American toad
or adaptations of american toad
toad ∨
Answers
Explanation
Upon examination of a zygote, a developmental biologist discovers that it possesses 69 chromosomes. what does this indicate?
Answers
Upon examination of a zygote, a developmental biologist discovers that it possesses 69 chromosomes. This indicates that the zygote is triploid. In other words, the zygote has three sets of chromosomes rather than the typical two sets.
The normal diploid number of chromosomes in human cells is 46 (23 pairs). During sexual reproduction, the haploid gametes (sperm and egg cells) each contribute one set of 23 chromosomes to form the zygote with 46 chromosomes. However, in cases where an individual receives an extra set of chromosomes from one parent (usually as a result of a mistake during cell division), they will have a triploid number of chromosomes (69 in this case). Triploidy is a rare chromosomal abnormality that usually results in early miscarriage or stillbirth. Surviving individuals with triploidy have severe developmental abnormalities and do not typically survive for long after birth.
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Explain how the processes of cellular respiration, photosynthesis, and carbon cycle are related to each other.
Answers
Cellular respiration, photosynthesis, and the carbon cycle are all interrelated and interdependent biological processes. Cellular respiration converts organic compounds into ATP that can be used to fuel metabolic activities, whereas photosynthesis is the process by which green plants and algae convert light energy into chemical energy, in the form of organic compounds.
Cellular respiration produces carbon dioxide and water, which are released into the atmosphere. In contrast, photosynthesis absorbs carbon dioxide and water, as well as sunlight, and uses them to create glucose and other organic compounds.
Thus, cellular respiration and photosynthesis are linked because the products of one process are the reactants of the other.The carbon cycle, on the other hand, involves the transfer of carbon between living organisms, the atmosphere, and the geosphere. In this process, carbon is taken up by green plants and other photosynthetic organisms, where it is used to synthesize organic compounds.
This carbon is then released back into the atmosphere through cellular respiration or is passed on to other organisms. Some carbon is also buried in the ground as fossil fuels. Thus, the carbon cycle is closely tied to both cellular respiration and photosynthesis.
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Sara is learning about photosynthesis and cellular respiration in her science class. Which statement can Sara write that best explains the relationship between
these two processes?
O A. The chemical reactions of photosynthesis and cellular respiration could not take place without each other.
B. Photosynthesis and cellular respiration are chemical processes used in both animal and plant cells.
C. Plants use photosynthesis to produce food, while animals use cellular respiration to consume their food,
D. When cells do not have enough energy for respiration, they rely on photosynthesis.
oh
Answers
Answer:
The most suitable answer is C.
Explanation:
Photosynthesis is the process whereby plants manufacture their own food using water, carbon (iv) oxide and some other minerals in the presence of sunlight while cellular respiration is the oxidation (or breakdown) of substances in the mitochondria (site of cellular respiration) in living cells.
according to one theory, the first prokaryotes probably obtained their food _____.
Answers
According to one theory, the first prokaryotes probably obtained their food through chemosynthesis.
The origin of prokaryotes, the simplest and earliest forms of life, is still a subject of scientific investigation and multiple theories exist. One theory suggests that the first prokaryotes obtained their food through chemosynthesis, which is a process of synthesizing organic compounds from inorganic substances using chemical energy.
Chemosynthesis involves harnessing energy from chemical reactions rather than relying on sunlight for energy, as in photosynthesis. In this process, prokaryotes use various inorganic molecules such as hydrogen sulfide, methane, ammonia, or iron to generate energy through chemical reactions. This energy is then used to convert carbon dioxide into organic compounds, serving as a source of nutrition.
This theory proposes that the early Earth, before the development of photosynthetic organisms, provided an environment rich in inorganic compounds that could be utilized by the first prokaryotes for their metabolic needs.
According to this theory, the first prokaryotes likely obtained their food through chemosynthesis, utilizing chemical energy from inorganic compounds to synthesize organic compounds. This theory highlights the adaptability and resourcefulness of early life forms in finding alternative energy sources before the emergence of photosynthesis. Further research and investigation are necessary to gain a comprehensive understanding of the origins and early evolution of prokaryotic life.
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a phagehunter plates 400 phage particles onto a pyca plate with gordonia terrae. the burst size of the phage is 50 phage particles per round of replication. after three rounds of replication, how many phage particles are present on this plate?
Answers
The number of phage particles present on this plate is 60000.
A phage particle consists of a single form of nucleic acid (both DNA or RNA) and a protein capsid that protects the genetic cloth. The vast majority of phages also possess a tail (fabricated from proteins) that enables the specific recognition of a receptor on the surface of the host bacterium.
No. Of phage particles in phage hunter = 400
No. Of phage particles replicate from one particle in 1 round= 50
No. of phage particles replicate from 400 particles in round = 50*400
= 20000 particles.
No. Of phage particles replicate from 400 particles in 3 rounds= 20000*3
= 60000
So after three rounds of replication, 60000 phage particles are present on this plate.
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\What did you have to do to turn an atom that is labeled “+ion or -ion” into a “Neutral Atom”?
Answers
Answer:if an atom is labeled as +ion then it needs electron to be neutral ,
but
if an atom is labeled as -ion then it has to lose electrons to be neutral.
Explanation:
A positive and negative ion can be converted to neutral by adding or deleting electrons respectively.
What is an Atom?It is the smallest particle that can represent an element. It is consist of electron, proton, and neutron.The electrons are negative particles and revolve around the nucleus. Protons are positive particles found inside the nucleus with neutrons. The number of positive and negative particles is equal inside a nucleus.A positive ion may lose one or more electrons and a negative ion may have one or more extra electrons.Therefore, a positive and negative ion can be converted to neutral by adding or deleting electrons respectively.
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Which of the following is abiotic?
an earthworm
a mosquito
a flood
none of these
Answers
Answer:
probably flood
:))
Explanation:
hehehe
which of the following statements correctly describes organisms in this food web?
Answers
Answer:
pls insert or write down the statements.
so that people will be able to answer your question.
3. Which of the following is the reactant of photosynthesis?
Answers
Answer: i dont see a question but The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll,
Explanation:
im not sure if you need this but while the products are glucose (sugar), oxygen and water.
How are biomes interdependent on the smaller levels of organization?
Answers
The biomes are interdependent on the smaller levels of organizations as the organisms, populations, community, and ecosystem together form the biomes.
Without the smaller levels of organizations, the larger biomes cannot exist. In Ecology, the organizational levels refer to the following: Biosphere - This is the home of all life on earth. Biome - A large assemblage of plants and animals inhabiting a major habitat. Ecosystem – A biological community of living organisms and their environment.
From the largest to the smallest: biospheres, biomes, ecosystems, communities, populations, and organisms. The cell is the smallest unit of organization.
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Explain the relationship between photosynthesis, respiration, and growth/maintenance in plants.
Answers
Photosynthesis and respiration are interconnected processes. Together, they are responsible for sustaining plant life. Here are the details regarding their relationship and how they contribute to plant growth/maintenance.
Relationship between photosynthesis, respiration, and plant growth/maintenance:
Photosynthesis: Plants use photosynthesis to generate food in the form of glucose and oxygen from carbon dioxide and water. Sunlight, chlorophyll, and other pigments are needed to catalyze the photosynthetic process. Carbon dioxide (CO2) and water (H2O) are combined to create glucose (C6H12O6) and oxygen (O2). The chemical reaction that takes place during photosynthesis is shown below:6CO2 + 6H2O → C6H12O6 + 6O2In the presence of sunlight, this reaction happens in chloroplasts. Thus, during photosynthesis, plants absorb CO2 and produce oxygen, which is vital for the survival of living organisms.
Respiration: It is the metabolic process that aids in the generation of energy for cell growth and maintenance. Through respiration, glucose produced by photosynthesis is transformed into ATP (adenosine triphosphate), which is then used by cells to perform their necessary functions. The respiration process occurs in the mitochondria of the plant cells. The chemical reaction that occurs during respiration is the opposite of photosynthesis: C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP. Respiration provides energy for the growth and maintenance of the plant. It also helps to power the plant’s various cellular processes. Growth and maintenance: Both photosynthesis and respiration are necessary for plant growth and maintenance. Photosynthesis provides plants with the food they need to grow and maintain their cells. In comparison, respiration is required to convert glucose into energy for the cells. Thus, photosynthesis and respiration are two sides of the same coin when it comes to plant growth and maintenance. They both contribute to the growth and development of the plant.
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The behavior of humans related to energy consumption is easy to address. O True False
Answers
The following statement “The behavior of humans related to energy consumption is complex and challenging to address. ” is False.
Energy consumption is influenced by various factors, including individual choices, societal norms, cultural practices, economic considerations, technological advancements, and government policies. Changing human behavior regarding energy consumption requires a multi-faceted approach that involves education, awareness, incentives, infrastructure improvements, and long-term behavior change strategies.
Addressing energy consumption behavior involves understanding and influencing individual attitudes, habits, and decision-making processes. It requires promoting sustainable practices, such as energy conservation, adopting energy-efficient technologies, transitioning to renewable energy sources, and reducing reliance on fossil fuels. However, implementing these changes on a large scale requires overcoming barriers such as economic constraints, lack of awareness, social norms, and resistance to change.
Additionally, addressing energy consumption behavior also involves considering the broader systemic and structural factors that influence energy use, such as urban planning, transportation systems, industrial practices, and energy policies. These factors play a significant role in shaping human behavior and energy consumption patterns.
In summary, changing human behavior related to energy consumption is a complex and multifaceted task that requires a comprehensive approach, considering individual behavior, societal factors, and systemic changes. It is not an easy issue to address.
Therefore, the correct answer is FALSE.
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The proteolytic enzyme trypsin is produced in the pancreas as the zymogen trypsinogen. Trypsinogen is cleaved to yield the active form. Trypsin, in turn, activates other pancreatic zymogens. Select every enzyme that is used in the activation of trypsinogen. enteropeptidase (enterokinase) fibrin trypsin chymotrypsin Select every pancreatic zymogen that is directly activated by trypsin. prolipase proelastase procarboxypeptidase chymotrypsinogen
Answers
Enteropeptidase (enterokinase) and trypsin are directly activated by trypsinogen.
What is Trypsin?By slicing these lengthy chains of amino acids into smaller pieces, the enzyme trypsin in the first part of the small intestine initiates the breakdown of protein molecules. It is a serine protease from the PA clan superfamily that hydrolyzes proteins in the digestive tracts of numerous animals.When the pancreatic enzyme trypsinogen, in the proenzyme form, is activated, trypsin is generated in the small intestine. The carboxyl side of the amino acids lysine or arginine is where trypsin primarily breaks peptide chains.It is employed in a variety of biotechnological procedures. Trypsin proteolysis or trypsinization is the term used to describe the process, and trypsinized proteins are those that have undergone trypsin digestion or treatment.To know more about trypsin with the given link https://brainly.com/question/14301571
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