Answer:
The correct answer is - the cell membrane.
Explanation:
When a human cell gets an external stimulus it triggers the production of the specific compound or chemical release which is packed in vesicles from the endoplasmic reticulum and Golgi apparatus to the cell membrane. The cell membrane is the cell organelle that allows or prohibits the entry or exit of any substance.
Chemical release or secretion also depends on the cell membrane and it allows the secretion of chemicals and plays an important role in the secretion of chemical, hormones, or any substance.
Cell membrane is an structure that plays a direct role in the release of chemicals from the cell.
The cell membrane is the wall that cells have, allowing them to remain independent from the external environment.
The membrane has receptors, which are molecules or sets of molecules, capable of recognizing and responding to signals from the extracellular medium, carrying specific information.
When these signals reach the plasma membrane, internal signals are triggered in the cell, both activating and inhibiting different cellular processes and the release of chemicals.
As an example of these external signals we can cite the release of chemicals such as hormones, for example insulin, which increases the synthesis of glycogen.
Therefore, we can conclude that cell membrane is an structure that plays a direct role in the release of chemicals from the cell.
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Which factor distinguishes the experimental group from control group?
Answer:
The independent value or the independent variable
The height of a painting is ft. Between which two consecutive whole numbers is ?
Choose the correct answer below.
A.
and
B.
and
C.
and
Answer:
a
Explanation:
I don't understand what you want it's all the same they all say and
Which of the following population growth limiting factors is density dependent? Select all that apply.
A Volcanic Eruption
B Severe Weather
C Disease
D Predation
The Answer is Most Definitely C and D(Correct me if I am wrong please)
Disease is density-dependent for the following reasons that limit population expansion.
What do you mean by disease?Diseases typically have specific symptoms and signs and are different from physical injuries in nature. Indicative of the its abnormal status, a diseased organism frequently displays signs or symptoms.
Which are the four primary diseases?The majority of noncommunicable diseases (NCDs)—17.9 million people annually—die from cardiovascular diseases, followed by cancer (9.3 million), chronic respiratory disorders (4.1 million), and diabetic
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Change the following sequence (GGAUUC) to show:
a. Substitution
b. Insertion
c. Deletion
DONT CHOOSE A< B< C
I need each of those to have an answer. So if you dont know how to do it , dont say anyhting. I will give brainlist
Answer:
Given the sequence of bases of the RNA GGAUUC, the possible mutations would be:
a. Substitution: GGAUUC → GGAAUC
b. Insertion: GGAUUC → GGACCUUC
c. Deletion: GGAUUC → GG_UC
Explanation:
The fragment observed is recognized as RNA, due to the presence of uracil (U). The mutations observed in this fragment are derived from a mutated DNA molecule, which was transcribed into mRNA
Substitution is a molecular mutation that occurs when one nitrogenous base is changed to another in the DNA sequence. GGAUUC → GGAAUC Mutated DNA: CCTTAGInsertion occurs when entire bases or segments are added to the original genetic material, resulting in a longer molecule. GGAUUC → GGACCUUC Mutated DNA: CCTGGAAGDeletion is a type of mutation where genetic material is lost, which can be nitrogenous bases or segments of the molecule. GGAUUC → GG_UC Mutated DNA: CC_AGEach of these mutations can have an effect on protein synthesis, affecting the structure or function of the final protein.
20. Name and describe two diseases caused by recessive genes.
Answer:
Autosomal Recessive: Cystic Fibrosis, Sickle Cell Anemia, Tay-Sachs Disease. We inherit genes from our biological parents in specific ways. One of the ways is called autosomal recessive inheritance.
Explanation:
got it from google hope it help
Answer:
Recessive: Cystic Fibrosis, Sickle Cell Anemia, Tay-Sachs Disease. We inherit genes from our biological parents in specific ways
Explanation:
refer to the metabolic pathway illustrated. if i, ii, iii, and iv are all required for growth, a bacterial strain that does not make enzyme x would be able to grow on medium supplemented with which of the following nutrient(s)?
A bacterial strain that does not produce the enzyme X would be able to grow on medium that has been supplied. Nutrients II, III, and IV are all necessary for growth.
What do a tRNA's two functional ends look like?The tRNA is 3'-UAC-5' on one end and binds to an mRNA codon that is 5'-AUG-3' on the other end through complementary base pairing. The amino acid methionine, which is the one the mRNA codon AUG specifies, is carried by the opposite end of the tRNA.
What is the appropriate information flow during gene expression?As a result, information moves from DNA to RNA to protein during the expression of a gene that codes for proteins. The main tenet of molecular biology is that information flows in one direction.
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The warmest climate according to the Koppen climate classification system is Type ____.DAEC
The warmest climate is A because in this classification type A is the one that includes tropical climates (this climate extends northward and southward from the equator).
Palisade mesophyll cells have very large vacuoles.
Explain how water moves from the xylem in the leaf into these vacuoles.
Answer:
Images
Books
News
Shopping
Videos
Maps
Flights
Finance
All filters
1-Water is passively transported into the roots and then into the xylem. 2-The forces of cohesion and adhesion cause the water molecules to form a column in the xylem. 3- Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.
How would you explain the key concepts for the CWA in less than two minutes?
Answer:
Explanation:
vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.
Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.
Navigable Waters of the United States For the purposes of the Clean Water Act, the term "navigable waters" includes:
all waters used in commerce, including groundwater;
all interstate waters including wetlands, mudflats, and sand-flats; and
all other waters such as lakes, rivers, streams, wetlands and sloughs.
EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters." The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect. In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.
Additional executive orders were issued 2015 in 2019. Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.
Could the requirement for one or more NPDES Discharge Permit apply to my campus?
If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.
Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.
Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.
What do I have to do related to NPDES Discharge Permits?
Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.
French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.
Details of NPDES
21: The scientific name of an organism
consists of its
A. family and class.
O B. genus and species.
C. order and family.
O D. species and kingdom.
Answer:
B
Explanation:
its the genus and specific epithet
Part 1: Calculate the percentage of the cell cycle spent in each stage. Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage
interphase 68% prophase 16% metaphase 6% anaphase 4% telophase 4% cytokinesis 2%
Part 2: Using your percentages in part 1, create a graph that represents the time spent in each stage of the cell cycle.
Insert chart [Hint: Don’t forget to consider the relationship between your data and the type of chart to best represent your data.]
Interphase 34, Prophase 8, Metaphase 3, Anaphase 2, Telophase 2, Cytokinesis 1. The percentage of time spent in each phase can be calculated by counting the total number of cells for each phase (total in interphase, total in prophase, etc.) and dividing each result by the overall number of cells.
Considering the given data; to calculate the percentage of the cell cycle spent in each stage of the cell cycle, the formula below is used: the total number of cells counted × 100 = % of the cell cycle spent in this stage.
Chromosomes and other cell components duplicate to create two copies of themselves over the course of the cell cycle, which consists of a number of phases. In various types of cells, the length of these cell cycle phases varies greatly.
By counting the total number of cells for each phase and dividing the total number of cells, we can state that the percentage of time spent in each phase may be computed.
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Into which part of the bacteria cell is the human gene for insulin inserted?
Answer:
plasmid
Explanation:
plasmid
The human insulin gene is inserted into each plasmid. The plasmid acts as a vector - it is used to transfer DNA from one organism to another. Bacterial cells are made to take up the genetically modified plasmids.
What did scientists believe was contributing to the depletion of the ozone layer and why?
CFCs and other halogen-source chemicals in the stratosphere were discovered to deplete the ozone layer.
What is ozone layer depletion?
Ozone depletion is the steady lowering of the Earth's ozone layer in the high atmosphere, which is produced by the discharge of chemical compounds from industry and other human activities that contain gaseous chlorine or bromine.
The ozone layer acts as a buffer against the sun's potentially dangerous ultraviolet rays. The destruction of the ozone layer puts humans in direct contact with dangerous ultraviolet rays, which can lead to a variety of health problems including cancer, cataracts, skin illnesses, and a weakened immune system.
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Most articles pass right through the atom, this means that most of the atom is
Most articles pass right through the atom, this means that most of the atom is an empty space.
What is an atom?An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.
As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.
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Maria decides to take shorter showers to help conserve water. What is she doing?
1. recycling
2. rethinking
3. reducing
4. reusing
reducing! She is reducing the amount of water she uses
Answer: Maria is reducing the amount of water she uses by taking shorter showers. Therefore, the correct answer is 3. reducing.
Recycling is the process of converting waste materials into new materials and objects. Rethinking involves considering different approaches to a problem or situation. Reusing involves using an item multiple times instead of throwing it away after one use.
Explanation:
Which environmental factor is likely to have the least impact on a population of organisms? *
5 points
A decrease in habitat size
An increase in the number of diseases
An increase in the number of predator species
A decrease in the number of competitive species
Answer:
A decrease in the number of competitive species
Explanation:
Amylase is an enzyme that helps break down complex carbohydrates into simple carbohydrates. The enzyme is present in the saliva in the mouth. When salivary amylase is in the stomach it stops functioning. Which of the following best explains the change that occurs when salivary amylase enters the stomach? *
Answer:
Woohpo
Explanation:
The actions of salivary amylase is inhibited as it enters the stomach.
When carbohydrates are digested,they are converted into monosaccharides by the action of gastrointestinal tract enzymes.
Salivary Amylase,which is present in the mouth, splits carbohydrate into simple carbohydrates(maltose) and other small polymers of glucose.
Because the food remains in the mouth only for a short period of time, not more than 5% of the carbohydrate will be hydrolyzed by the salivary amylase enzyme.
As the food is swallowed, it is mixed with the stomach secretions which falls below pH of 4( that is, acidic).
The salivary amylase is essentially inactive once in acidic medium like the stomach.
Therefore, the actions of salivary amylase is inhibited as it enters the stomach.
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which of the following statements correctly describes the role of white blood cells in the human immune system?
A. Neutrophils gather at sites of infection and release histamine, while macro phages ingest antigens before they enter the blood stream
B. Monocytes gather at sites of infection and release histamine, while basophils ingest antigens before they enter the bloodstream
C. Neutrophils gather at sites of infection and release histamine, while monocytes ingest antigens before they enter the bloodstream
D. Basophils gather at sites of infection and release histamine, While macrophages ingest antigens before they enter the bloodstream
Answer:
Explanation:
A
Which of the following evidence for evolution can be obtained from fossils?A. vestigial stagesB. transitional stagesC. homologous stagesD. geographic stages
Evidence for evolution that can be obtained from fossils is transitional stages of the extant species, as stated in the second answer option (B. transitional stages). This is possibly due to for a known fossil, there can be found a new fossil related, which can be a variation of that former species, but also a previous form of a currently existing species, as we can see in the following picture, where the three images of teeth in the middle, corresponds to transitional stages between the two different teeth of each extreme of the picture (:
Early one morning a large number of fish were found dead along the banks of a Florida river.
Several scientists proposed hypotheses for the deaths. Which of the following would be most
appropriate for the scientists to do to determine the cause of the fish kill?
Answer:
sho fronk dil'oge compre siced
Explanation:
Answer: Conduct water quality tests to determine if there are any pollutants or toxins present in the river water.
what would most likely happen to a person who is not getting enough essential amino acids in his or her diet?
A. The body would synthesize the amino acids.
B. Muscle growth and repair would be limited.
C. Stored protein would break down
D. The formation of proteins would increase.
Answer:
Muscle tissue would separate to supply amino acids.
a
Explanation:
These goats are eating grass on a sunny day. What is happening to the carbon in the air around the living things on the mountain? Is carbon moving into the air, moving out of the air, or both?
Answer:
it's moving on both. because its and oxidation reaction
in plants water is transported through?
Answer:
Water is sucked up xylem by mass flow (cohesion-tension) which decreases the water potential in the root xylem. So water diffuses through the root cells to the xylem which decreases the water potential in the root epidermis cells, so water diffuses into root hair cells from soil by osmosis.
Explanation:
An experiment was performed to measure the growth of bacterial colonies on an agar plate over a 48- hour period. Which type of graph or chart would be most suitable to represent the data. PLEASE HELP! THE ANSWER CHOICES ARE A: Pie chart B: Bar graph C: Stacked bar graph D: Line graph! This is 8th-grade science help:C
Answer:
D. Line graph
Explanation:
A line graph is used to track changes over short or long periods of time
the other options don’t make sense other than the bar graph but you are not comparing anything and it just makes more sense to use a line graph.
Which best describes the structure of a nucliotide
A nucleotide is composed of three parts: a nitrogenous base, a five-carbon sugar, and a phosphate group.
The nitrogenous base can be either a purine (adenine or guanine) or a pyrimidine (cytosine, thymine, or uracil). The five-carbon sugar is either ribose (in RNA) or deoxyribose (in DNA). The phosphate group is attached to the 5' carbon of the sugar.
The nitrogenous base, sugar, and phosphate group together to form a single nucleotide unit. In DNA and RNA, nucleotides are linked together through a phosphodiester bond between the 3' carbon of one nucleotide and the 5' carbon of the next nucleotide, creating a long chain or strand.
Overall, the structure of a nucleotide can be visualized as a three-part unit consisting of a nitrogenous base, a sugar, and a phosphate group.
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The production of APP in a neuron. APP is represented by the triangles.
Using Figure 1, label the following: neuron, nucleus, rough ER, Golgi, transport vesicles, APP, and exocytosis.
1) Labelled image in the attached files. 2) mRNA synthesis occurs in the nucleus. Protein synthesis begins in the cytoplasm and ends in the RER, where folding and the first glycosylation stage occur. In the Golgi complex, glycosylation is over, proteins are packaged into vesicles and sent to the membrane, from where they are released by exocytosis.
What is protein syntesis?Protein synthesis is the process through which new proteinic molecules are porduced. It involves transcription, translation, and maturation.
Transcription ⇒ mRNA synthesis
The first step before protein synthesis begins is to synthesize messenger RNA, mRNA. This is the coping process of the DNA section for the desired protein, and it happens in the nucleus.Translation ⇒ Cytoplasm stage
Translation takes place when the formed mRNA moves to the cytoplasm through the nucleus membrane pores.
Once in the cytoplasm, mRNA meets a ribosome, which can be found in the rough endoplasmic reticulum or floating in the cytosol.
While the ribosome reads mRNA strain, tRNA adds the correct amino acids to build the polypeptide.
Maturation process
⇒ Endoplasmic Reticulum Stage
Some proteins are destined for exportation. Their synthesis starts in the cytoplasm but finishes in the Rough endoplasmic reticulum.
When the ribosome and the growing molecule reach the RER, the synthesizing protein keeps enlarging forward the reticulum lumen. When the new polypeptide synthesis is complete, it is released into the reticulum lumen.
The endoplasmic reticulum is in charge of protein folding, maturation, and transport, especially those destined for secretion. It produces the latest protein modifications after transduction and initiates the glycosylation process.
⇒ Golgi complex stage
Once the protein synthesis in the endoplasmic reticulum is over, these molecules are packaged into vesicles and sent to the Golgi complex.
In the Golgi complex, proteins suffer their final association with carbohydrates and lipids to originate glycoproteins and glycolipids.
⇒ Destiny stage
Glycoproteins and glycolipids are packaged again into new vesicles that drive them to their final destiny.
Exportation proteins move forwared to the membrane within vesicles. Through exocytosis events, these molecules are released.
1) You will find the labelled figure in the attached files.
2) Steps of production and movement of PPT
mRNA synthesis occurs in the nucleus. Protein synthesis begins in the cytoplasm and ends in the RER. Protein folding and the first glycosylation stage occur in the RER. In the Golgi complex, glycosylation is over, and proteins are packaged into vesicles and sent to the membrane. Once in the membrane, proteins are released by exocytosis.You will learn more about protein synthesis at
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The population in a 50 square mile area is 200 people. What is the population density?
Answer:
\(\rho _{population}=4\frac{people}{mi^2}\)
Explanation:
Hello.
In this case, since the population density is computed by dividing the amount of people by the space (area) where they are in:
\(\rho _{population}=\frac{people}{area}\)
For 200 people living in a 50-mi² area, the population density is:
\(\rho _{population}=\frac{200people}{50mi^2}\\\\\rho _{population}=4\frac{people}{mi^2}\)
It means that 4 people live per square mile area.
Best regards.
where is the best place to find information about the hazards that area associated with a compound
Answer:
Read a Material Safety Data Sheet (MSDS).
Explanation:
Physical abuse is any
physical injury caused to a child, which includes hitting, slapping, and pinching.
Answer:
yes that is if it is for not for discipline purposes and can still only be used to certain extent must not leave bruises and if so must be gone it 72 hrs if any of this is being experience please report to the proper authorities
Explanation:
I need help with this practice In your own words, give a general description of the species: Eastern Chipmunk Please,(if you use words that are not your own, reword it so it is more like your own words) as I would like you to explain/clarify it, this means your answer can be summarized
Tamias striatus commonly known as Eastern chipmunk is a member of the order Rodentia, that is to say, is related to mice. It can be found in eastern North America (the US and Canada), in deciduous forests and urban parks. Its diet consists mainly of seeds, fruits, green plants, mushrooms, and sometimes small invertebrates and eggs, so can be considered as a primary consumer.