Hormones, even when present in very small quantities within the bloodstream, can elicit a large response within a cell due to the high specificity of hormone-receptor interactions and the amplification of signaling cascades within the cell.
Hormones act as chemical messengers in the body, and their effects are mediated by specific receptors present on target cells. These receptors have high affinity and specificity for the hormone molecules, allowing them to bind even when present in low concentrations. When a hormone binds to its receptor on the cell surface or within the cell, it triggers a signaling cascade that leads to a cellular response.
The signaling pathways activated by hormone-receptor interactions often involve enzymatic reactions and second messengers, which act as signal amplifiers. For example, a single hormone molecule binding to a receptor can activate multiple molecules of an intracellular signaling molecule, which in turn can activate numerous downstream effectors. This amplification process ensures that even a small number of hormone molecules can produce a significant effect within the cell.
Additionally, the response of a cell to a hormone can be further amplified through signal integration with other signaling pathways and the activation of gene expression. This allows for a coordinated and robust cellular response to the presence of hormones, despite their low concentrations in the bloodstream.
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what do the arguments for and against the use of stem cells in medical research share?
Answer: Stem cell research can potentially help treat a range of medical problems. It could lead humanity closer to better treatment and possibly cure a number of diseases:
Parkinson’s Disease
Alzheimer’s Disease
Heart Diseases, Stroke and Diabetes (Type 1)
Birth Defects
Spinal Cord Injuries
Replace or Repair Damaged Organs
Reduced Risk of Transplantation (You could possibly get a copy of your own heart in a heart-transplantation in the future
Stem cells may play a major role in cancer
Better treatment of these diseases could also give significant social benefits for individuals and economic gains for society
Cons
"We should not mess with human life."
"Humans should not be trying to play God"
Some argue that stem cell research in the far future can lead to knowledge on how to clone humans. It is hard to say whether this is true, but we have seen devastating consequences of other research-programs, even with good intentions, such as nuclear research.
Stem cells are cells, which have the ability to transform into many different types of cells. The stems cells have the potential to specialize in any type.
The stem cells are extensively used for research, curing diseases, and especially in developing prosthetics. The stems cells provide new cells for the growth and development of the replaced and damaged cells.
The arguments for and against the use of stem cells are:
Arguments for the use of stem cells in medical research are:
1. The stem cells enhance the growth and development of healthy skin tissue.
2. The cells can be used to enhance the production of collagen.
3. The study of stem cells helps in understanding the causes of disease.
Arguments against the use of stem cells in medical research are:
1. The use of stem cells for research harms human life and dignity.
2. People believe that killing blastocysts or stem cells is equal to taking a human life.
3. However, the transplant of stem cells can be rejected by the patient's body, therefore, can cost the life of the patient.
Therefore, the use of stem cells for research can be fruitful or disadvantageous.
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Which of the following answers is NOT correct with regard to convection currents?
A. Convection currents in magma drive plate tectonics.
B.Convection currents in magma are a result of density differences.
C. Convection currents play a role in the movement of Earth’s inner core.
D. Convection currents in magma are caused by temperature differences.
Answer: C....Convection currents play a role in the movement of Earth’s inner core
The statement which is not correct with regard to convection currents is as follows:
Convection currents play a role in the movement of Earth’s inner core.Thus, the correct option for this question is C.
What is Convection current?Convection current may be defined as a procedure that significantly involves the movement of energy from one place to another. It is basically the existence of current in a fluid through convection.
The inner core of the earth has appeared as solid as compared to other parts like the crust and mantle. Most liquid particles are definitely found on the mantle of the earth's surface.
Due to the presence of excessive liquid particles and compounds, the convection current is significantly noticed there.
Apart from this, magma is also a fluid that derives current through convection. It produces in a number of ways like magma driving plate tectonics, density differences in the magma, and temperature differences.
Convection currents are basically the movement of fluid with respect to temperature or density difference within the material.
Therefore, the correct option for this question is C.
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Does mass alone determine whether an object will float or sink? Explain
Answer:
yes because if the mass is heavy it gonna sink, if its light its gonna float
Explanation:
Describe how Pangaea first split apart around 200 million years ago.
Answer:
Pangea was the world's supercontinent, with its splitting came preliminary continents of today.
Explanation:
The splitting occurred due to the movement of tectonic plates, where plates spread apart and moved the landmasses with it.
The diploid cells of a radish plant contain 18 chromosomes. How many chromosomes are in a radish plant's haploid cells?
Answer:
9
Explanation:
The diploid chromosome number for a radish is 18 and the diploid chromosome number for cabbage is also 18. The haploid number for these species is nine. Therefore, the gametes of the radish and cabbage contain nine chromosomes.
PLs HELP !!!!!
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The process our cells use to convert broken down glucose into carbon dioxide (CO2) and water (H2O) is called what?
Question 3 options:
Aerobic Respiration
Anaerobic Respiration
Breathing Respiration
Cellular Respiration
Answer:
Aerobic Respiration
Explanation:
i toke the quiz on K12 if itz rong im realy sorry.
Can i have brainlyst pls. :)
Explain why is important to know some biology in the middle of a pandemic
Can hydrogen peroxide be broken down by catalysts other than those found in a living system? What is/are the control(s) and why are they needed?
Answer:
hi I not talk spanish
Explanation:
not talk spanish
Use your observations from the lab activity/lab video and the data tables to explain how salinity affects the way cold water from melting ice mixes with warm water.
MUST DO THE GIZMO LAB
https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fj.mp%2f2xEVbH2&c=E,1,W18vDiET_qY95IoljRmfTZ1KOmwgV8TTajW0p-106B4yZ2Z4Hb0F9LUk21rjhlfridBb9NkRGcIDSjHYFxZDLsOn8iCWP2EKd-ODPF3IQrt5d24,&typo=1
Answer:
The link doesn't work but it is known that when you add salt to ice, the ice not only melts but will actually get colder.
hope this at least helped you :>
How many alleles are typically found for mitochondrial genes?
1. 8
2. 1
3. 4
4. 2
Answer:
The answer is 2.1
Answer:
two alleles
Explanation: because This dynamic aspect of mitochondrial transmission from cell to cell is termed mitotic segregation. In Mendelian genetics, a person's nuclear DNA can contain, at most, only two alleles for any particular autosomal gene, one paternally derived (e.g., allele “A”) and the other maternally derived (e.g., allele “B”).
I hope this is what your looking for.
What characteristic do sea stars and brittle stars have in common?
Both have flexible joints.
Both have teeth-like feeding structures.
Both use tube feet to catch prey.
Both have tentacles.
Answer:
They typically have a tough, spiny surface, which inspired their name (in Greek, echinos means “spiny” and derma means “skin”). They also have the unusual ability to regrow lost body parts, and sea stars and brittle stars can regrow arms if broken off or eaten
Explanation:
Sea stars and brittle stars both use tube feet to catch prey. Therefore, option C is correct.
What are sea stars and brittle stars?Echinoderms with a star form that belongs to the class Asteroidea are known as starfish or sea stars. These terms are frequently used incorrectly to refer to ophiuroids, which are properly called brittle stars or basket stars in common usage. Due to their membership in the class Asteroidea, starfish are also referred to as asteroids.
The benthic (bottom-feeding) fauna of the maritime environment includes brittle stars. They belong to the Phylum Echinodermata, which includes marine organisms with radial symmetry, five components, and frequent spines. They are commonly referred to as echinoderms.
Sea stars and brittle stars both use tube feet to catch prey. Therefore, option C is correct.
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Which of the following represents a cross between two heterozygous plants?
A. Ww x WW
B. ww x WW
C. Ww x Ww
D. WW x WW
what is pseudopodia?
Answer:
Pseudopodia are temporary and cytoplasm-filled parts of the cell membrane that are able to change their form in order to move.
Explanation:
Pseudopodia are temporary and cytoplasm-filled parts of the cell membrane that are able to change their form in order to move. They are used in some eukaryotic cells to move around or to eat. Most cells that do this are called amoeboids. The amoeba is a common example. ... Pseudopods can also capture prey by phagocytosis.
Find 2 ways that natural gas forms. List the steps of the two carbon pathways below. Label each location with A for atmosphere, B for the biosphere, G for geosphere, or H for hydrosphere. Use P for the anthroposphere.
Answer:
Biogenic and thermogenic
Explanation:
Biogenic and thermogenic are the two ways or mechanism that is responsible for formation of natural gas. Biogenic gas is formed with the help of methanogenic organisms that is present in marshes, bogs, landfills, and shallow sediments. Thermogenic gas is formed from organic matter that is buried in the deeper earth where the temperature and pressure are very high.
The organic pathway of the carbon cycle is the pathway in which carbon moves from atmosphere, through producers, herbivores and other organisms in the ecosystems, and converted back to the atmosphere.
In geological pathway, carbon moves from the atmosphere, through the ocean to rocks and the mantle, and then back to the atmosphere.
What caused the Kingdom of Life to change? Give 3 reasons minimum.
Answer:
Due evolution, discoveries and having both characteristics.
Explanation:
The Kingdom of Life change due to evolution in the body of organisms, discoveries of new organisms that are different from plants and animals. There are some organisms that have both plant and animal characteristics so it can't be placed in plant or animal kingdom so that's why the kingdom of life changes from two kingdom system to 5 kingdom system.
What provides the genetic material of an organism
Answer:
its parents.
Explanation:
Which event shows conditions that lead to natural selection?
A-Weeds are removed by a gardener from a public park
B-Wild horses are tamed over many years and selectively allowed to reproduce.
C-A crab produces millions of offspring in a year, but few survive to adulthood.
D-Farmers collect the largest corn seeds to plant in their fields the following year.
Which of the following statements is the of asexual reproduction?
A. It produces offspring
B. It produces genetically identical offspring
C. It produces genetic diversity
D. It produces offspring that are resistant to antibiotic.
The answer is B because the new cells formed during asexual reproduction are formed by mitosis there is no genetic diversity.
II. Which animal is the top predator in many wetlands?
A. Raccoons
B. Alligators
C. Snakes
D Owls
Answer:
Its B. Alligators. Yup they are the top predators
Hope this helped
All the best ！！
Answer:
B alligators cause wet and crocodals are wet
What is true about the insanity defense?
It is defined in the Diagnostic and Statistical Manual of Mental Disorders.
It can be used only if a person is diagnosed with a specific disorder from the DSM.
It is a legal term used to determine if a person can be held accountable for a crime.
It is a legal term that helps to determine if a person committed a crime or not.
It cannot be used if a person was previously found to be responsible for a different crime.
It's a legal term used to determine if a person can be held accountable for a crime. Hope this helps; have a wonderful day.
What are the three steps of the water cycle if the rain falls directly into the ocean?
Answer:
1. evaporation
2. condensation
3. precipitation
Explanation:
What is tendonitis?////////////////////////////////////////////////////////
The amino
Each codon calls for one
acids are linked together by
It takes many amino acids to form a protein.
plz answer quick
Answer:
1. Proteins.
2. Peptide Bonds.
Explanation:
I majored in Biology
All levels of biological organization and discription?pllsss paki sagutan po
What are the 6 lobes of the brain and where are they located?
Answer:
Frontal lobe.
Parietal lobe.
Occipital lobe.
Temporal lobe.
Limbic lobe.
Insular cortex.
The four lobes of the brain are the frontal, parietal, temporal, and occipital lobes (Figure 2). The frontal lobe is located in the forward part of the brain, extending back to a fissure known as the central sulcus. The frontal lobe is involved in reasoning, motor control, emotion, and language.
Explanation:
In a food chain that includes, in order, plants, markhors, and snow leopards, what roles do markhors play? (Select all that apply.)
Answer:
-They are eaten by snow leopards
-They eat plants
Explanation:
There is balance between Apoptosis and Mitosis. What is the
characteristic of life that would involve maintaining this balance?
Metabolism
Respond to Stimuli
Homeostasis
Universal Genetic Code
Answer:
Homeostasis
Explanation:
The coronavirus attaches to a membrane protein called
Answer:
M glycoprotein..
The coronavirus attaches to a membrane protein called M glycoprotein..
please help me with this!!!
Answer:
okkkkkkkkkkkkkkkkkkkkkkkkkkk 23.6/0987
Explanation:
Try to move the different parts of the body
by moving it back and forth, side to side,
rotating, and swinging.
The given question is incomplete, however, the missing part is as follows:
body parts movement
neck _____
lower arm _______
upper arm ________
wrist __________
shoulder _________
skull _________
knee _________
hipbone _________
elbow _________
ankle _________
Answer:
The correct answer is given as follows:
Explanation:
A. side to side
B. swinging
C. rotating
D. rotating
E. rotating
F. back and forth
G. swinging
H. side to side
I. back and forth
J. rotating