which of the following structures secretes renin when blood pressure in the afferent arteriole drops? a. renal tubule b. proximal convoluted tubule c. juxtaglomerular apparatus d. both a and b
Answers
The juxtaglomerular apparatus is a specialized structure located in the kidney where the afferent arteriole comes into contact with the distal convoluted tubule. The correct answer is c) juxtaglomerular apparatus.
It consists of three main components: the macula densa, granular (juxtaglomerular) cells, and extraglomerular mesangial cells.
When there is a decrease in blood pressure in the afferent arteriole, the macula densa cells detect this change and signal the granular cells to release the enzyme renin.
Renin plays a crucial role in the renin-angiotensin-aldosterone system, which regulates blood pressure and fluid balance in the body. The secretion of renin helps to increase blood pressure and restore normal kidney function.
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Related Questions
If RBC's don't normally have a nucleus, how do forensic scientists get DNA from blood samples?
Answers
Forensic scientists can extract DNA from red blood cells (RBCs) even though they do not have a nucleus. This is possible because the mitochondria in the RBCs contain a small amount of genetic material from both the mother and the father.
The DNA that is extracted from the mitochondria is called mitochondrial DNA (mtDNA). Forensic scientists use a process called polymerase chain reaction (PCR) to amplify the mtDNA from the RBCs.
This process involves replicating the mtDNA so that it can be analyzed and compared to other samples. Once the mtDNA has been amplified, the forensic scientists can use it to identify the source of the blood sample.
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match each phenotype to the environment for which it is most suited. environments may have more than one phenotype.
Answers
Answer:
Explanation:
I apologize, but without specific phenotypes and environments provided, I am unable to match them accordingly. If you could provide the phenotypes and corresponding environments, I would be more than happy to assist you with the matching.
What are invisible agents that cause disease in other organisms?
Answers
Answer:
Viruses/Bacteria/Germs
Explanation:
Viruses/Bacteria/Germs
Choose the correct answers from the alternatives given :Which of the following is not true of a codon?A. It extends from one end of a tRNA molecule B. It may code for the same amino acid as another codon C. It never codes for more than one amino acid C. It is the basic unit of the genetic code
Answers
The answer is A
There is just one amino acid encoded by each codon. Because all species use the same amino acid as a code, codons are therefore universal in nature.
What is a codon?
Codons are units of genomic information made up of three nucleotides (trinucleotides) in DNA or RNA that code for a specific amino acid or indicate the end of protein production (stop signals). There are 64 distinct codons, of which 3 serve as stop signals and 61 identify amino acids.
The bases that make up DNA and the associated messenger RNA are called bases. These nucleotides are frequently identified in RNA by the letters A, U, C, and G. A codon is made up of three nucleotides. Such codons are abundant in messenger RNA and consist of a string of three bases followed by three more bases, three more bases, and so on. Each codon gives the cell instructions on whether to begin building a protein chain, add a particular amino acid to the expanding protein chain, or stop building a protein chain altogether. For instance, the messenger RNA codon GCA indicates that alanine will be added to the protein chain. The stop codon UAG in messenger RNA denotes the conclusion of protein production.
More than one codon can encode the same amino acid. Example: The six codons CGU, CGC, CGA, CGG, AGA, and AGG are used to code for arginine.
The nature of the codons is continuous and uniform.
Therefore, "It extends from one end of a tRNA molecule" is the right answer.
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Chromosome ____________ refers to the two chromosomes separating and moving to opposite ends of the cell.
Answers
List the elements
found in sugar and
oxygen
Where did the plant get this
element from? (your answer
should be a molecule or
molecules)
Answers
Element found in sugar is glucose and plant get this element from photosynthesis .
The product of photosynthesis is glucose and oxygen . Hydrogen atom from water molecule is also used in this process were oxygen molecule is released as oxygen gas .
Photosynthesis produce oxygen and glucose from carbon dioxide and water. Glucose is used as food by the plant and oxygen is a by-product. Sugar is converted into starch in whole plants. Water is also a product of photosynthesis. This water is produced from the oxygen atoms in the carbon dioxide molecules and oxygen molecules that are released into the atmosphere come exclusively from the original water molecules.
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in the adult digestive tract, where do lipases break fat into fragments so that it can be absorbed into the lymph?
Answers
As to the digestive tract, the function of the lipases would take place in the small intestine.
Lipase is an enzyme that helps us to metabolize fat. It does this through hydrolysis. Although in reality, as an enzyme, its main function is to catalyze this process. Lipases are the subclass enzyme of the esterases.
Lipases are necessary for the proper digestion and transport of fats in the form of lipids. They are also essential to process these lipids in the human body. This enzyme is present in most living organisms outside of humans.
Although lipase enzymes are produced throughout the body, the bulk of lipase production occurs in the pancreas. It will then travel to the small intestine to carry out its functions in the digestive tract.
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In the adult digestive tract, lipases in the small intestine break fat into fragments so that it can be absorbed into the lymph.
Fat digestion occurs efficiently and almost completely in the small intestine by pancreatic secretion of lipases.
Pancreatic lipase acts on triacylglycerides to give free fatty acids and monoacylglycerides.
First, they are absorbed by the epithelial cells of the intestinal wall called enterocytes, creating complex particles called chylomicrons, loaded with triglycerides.
Fatty acids are re-esterified within the enterocyte and enter circulation through the lymphatic pathway as chylomicrons.
Chylomicrons bind to lymph, which carries them to the bloodstream, this indicates the great importance of lymph in the process of assimilation of dietary fats.
Therefore, we can conclude that in the adult digestive tract, lipases in the small intestine break fat into fragments so that it can be absorbed into the lymph.
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The temperature on photosynthesis outline the steps of a practical investigation
Answers
Count how many oxygen bubbles the plant emits over the course of one minute. This is how quickly photosynthesis occurs at that specific temperature. Checking the gas to ensure that it is oxygen should be done - relights a glowing splint.
Investigation on how temperature impacts photosynthetic rateThe quantity of enzyme-substrate collisions limits the pace of photosynthesis at low temperatures. The rate of photosynthesis rises as a function of temperature because there are more collisions as a result.
As photosynthesis is a chemical process, the pace of most chemical reactions normally rises with temperature, the higher the temperature, the greater the rate of photosynthesis will typically be. Yet, the rate of photosynthesis decreases considerably at temperatures exceeding 40°C.
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Which of the following is not true
about antibodies?
A. They are proteins
B. They destroy pathogens
C. They are produced by
plasma cells
D. They are stored in vacuoles
NEED ASAP!!!
Answers
Antibodies are not stored in vacuoles. They are found in the blood, lymph, and other body fluids. Hence option D is correct.
Antibodies are proteins that are produced by plasma cells in response to an infection. They bind to specific antigens on the surface of pathogens, which helps to destroy them.
The other choices are all true about antibodies.
A. They are proteins. Antibodies are made up of amino acids, which are the building blocks of proteins.
B. They destroy pathogens. Antibodies bind to specific antigens on the surface of pathogens, which helps to destroy them.
C. They are produced by plasma cells. Plasma cells are a type of white blood cell that is responsible for producing antibodies.
Therefore, option D) They are stored in vacuoles is correct.
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A mutant strain of e. Coli produces β‑galactosidase in the presence and in the absence of lactose. Where in the operon might the mutation in this strain occur, and why?.
Answers
Answer:
A + E
Explanation:
The operator region where the mutation occurs and the operator does not binds to the repressor normally. The mutation can also occur in the Lacl gene which leads to an inactive lac repressor.
Which of these is NOT a type of fungi?
yeast
mold
algae
mushrooms
Answers
Answer: Algae
Explanation:
Algae
Algae are grouped in the kingdom Plantae. The unicellular blue-green algae are kept under the kingdom Protista
Fungi
In the five-kingdom classification by Whittaker, fungi were placed in a separate kingdom Fungi
can someone send a link on this topic or help me do it in any way?? its due tomorrow
Answers
Answer:
You should explain more...
Explanation:
Heavy metals, such as _____ work by _____. A. mercury; disrupting membranes B. copper; producing toxins C. iodine; denaturing proteins D. silver; inactivating proteins
Answers
Answer: A
Explanation:
17. What is meant by dissolved oxygen?
Answers
Answer:
Explanation:
Dissolved oxygen (DO) is the amount of oxygen that is present in water. Water bodies receive oxygen from the atmosphere and from aquatic plants.
Answer:
Dissolved oxygen is a measure of the amount of gaseous oxygen contained in water. Healthy waters that can support life must contain dissolved oxygen (DO). direct absorption from the atmosphere.
Explanation:
CAN I GET BRAINLIEST
What is the series of processes in which a plant converts sunlight into a useful simple sugar called?
division
choloplasts
photosynthesis
mitosis
Answers
Answer: Photosynthesis
Explanation: I had this question to and it should be correct. I’m sorry if not.
Organs such as the heart serve e function of working together as components of-
Answers
Answer:
the circulatory system
Explanation:
for instance your heart, your lungs,your blood, and your blood vessels all work together as a team.
multicellular parasites group of answer choices are most effectively cleared by type 2 immunity. are most effectively cleared by type 1 immunity. are primarily cleared by the activity of phagocytic cells. provoke strong immune responses due to the high antigenicity of parasite antigens. are cleared by responses occurring in mucosal tissues that are dependent upon iga secretion.
Answers
Multicellular parasites are primarily cleared by the activity of phagocytic cells.
Here, correct option is A.
However, they also provoke strong immune responses due to the high antigenicity of parasite antigens. In terms of specific immune responses, different types of parasites may be effectively cleared by different types of immunity.
Multicellular parasites are most effectively cleared by type 2 immunity. This immune response is characterized by the activation of specific immune cells, such as eosinophils, mast cells, and basophils, which help to combat these larger parasites.
For example, some multicellular parasites may be most effectively cleared by type 2 immunity, while others may be primarily cleared by type 1 immunity. Additionally, some parasites may be cleared by responses occurring in mucosal tissues that are dependent upon IgA secretion.
Therefore, correct option is A.
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Which of the following statements are ACCURATE regarding homeotic genes and homeotic proteins? Check all that apply.
-Homeotic genes encode transcription factors
-Homeotic proteins bind regulatory regions of genes important in development
-In animals, the order of homeotic genes on a chromosome correlates with their spatial order of expression in the embryo
-The homeodomain of a homeotic protein has an arrangement of alpha-helices that can bind DNA
-Homeotic genes from plants do not contain a homeobox sequence
-Homeotic genes found in mammals are homologous to homeotic genes found in Drosophila
Answers
The accurate statements regarding homeotic genes and homeotic proteins are:
Homeotic genes encode transcription factors.Homeotic proteins bind regulatory regions of genes important in development.In animals, the order of homeotic genes on a chromosome correlates with their spatial order of expression in the embryo.The homeodomain of a homeotic protein has an arrangement of alpha-helices that can bind DNA.Homeotic genes found in mammals are homologous to homeotic genes found in Drosophila.Homeotic genes, also known as Hox genes, are a group of genes that play a fundamental role in the development of organisms. They are responsible for controlling the pattern formation and identity of body segments during embryonic development. Homeotic genes encode transcription factors, which are proteins that regulate the expression of other genes by binding to specific DNA sequences.
Homeotic proteins, also referred to as Hox proteins, are the protein products encoded by homeotic genes. These proteins contain a conserved DNA-binding domain known as the homeodomain. The homeodomain consists of a sequence of about 60 amino acids arranged in three alpha-helices. The homeodomain enables homeotic proteins to bind to specific DNA sequences in the regulatory regions of target genes. By binding to these regulatory regions, homeotic proteins can activate or repress the expression of their target genes, thereby controlling the development and differentiation of cells and tissues in specific body regions.
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Which of the following is an example of osmosis?
Movement of water into the roots of a plant
Movement of pottasium in to a cell
Movement of sodium through a channel protein
Movement of carbon dioxide into the leaf of a cell
Answers
The people were overjoyed and _ to their boats
Answers
The people were overjoyed and take to their boats.
A boat's sides may begin to fill with water as a result of waves breaking over them, which will make the boat denser and eventually cause it to sink. Therefore, even if a boat can transport a specific amount of cargo across perfectly still water, that doesn't guarantee that it can do so safely across a choppy ocean.
What about boats?A boat is technically in the water because it is partially submerged, but it is not so immersed that the phrase "on the water" is incorrect because it is floating on the water. It can move either under its own power—typically a motor—or under the power of the elements, such as the wind, waves, or sun. The majority of boats travel partially through the water and partially above it. Hovercrafts and hydrofoils are two examples of boats with the ability to lift up and travel above the water. A boat can only stay in saltwater for approximately a week without risking damage, while three to four weeks in freshwater usually won't. The building materials on a boat never have a chance to dry out when it is left submerged. An open craft, such a rowing boat, is referred to as a boat. A boat with a cabin is used on a boat. Grease is applied to the hull of the vessel before the transfer, which enables the ship or boat to "slide" off the ramp and make its way safely into the sea. Large ships are launched via slipways, but only smaller ships can be dry-docked or repaired.
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Give an example of seedless vascular plants.
Answers
Explanation; they have the same tissue to move food and water through their stems and foliage, but they don't produce flowers or seeds
Seedless vascular plants include club mosses, horsetails, ferns, and whisk ferns.
What are Seedless vascular plants?Seedless Vascular Plants are those vascular plants or tracheophytes all produce seeds during their reproductive phase except those belonging to phylum Pteridophyta, where pteridophytes include ferns and horsetails, do not produce seeds. Hence they are seedless vascular plants.
Seedless vascular plants fall under the category of tracheophytes which have vascular tissues such as xylem and phloem, but do not produce seeds or flowers for propagation. Examples of seedless vascular plants include ferns, clubmoss, whisk fern, and horsetail.
Thus, Seedless vascular plants include club mosses, horsetails, ferns, and whisk ferns.
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Which of these best explains the difference between eukaryotes and prokaryotes?
A.Eukaryotes have simpler cells and can only be unicellular.
B.Eukaryotes have simpler cells and can be either unicellular or multicellular.
C.Eukaryotes have more complicated cells and can only be multicellular.
D.Eukaryotes have more complex cells and can be either unicellular or multicellular.
Answers
Answer:
B. Eukaryotes have more complex cells and can be either unicellular or multicellular.
Answer:
Eukaryotes have more complex cells and can be either unicellular or multicellular. ... Plant cells have cell walls and chloroplasts; animal cells do not.
Blood type is a type of gene where both alleles can be expressed. Which statement best explains a person with AB blood type.
Answers
Answer:There is a codominant relationship between alleles
Explanation:
How is speed calculated?
multiply velocity by displacement
divide velocity by displacement
multiply distance by time
divide distance by time
Answers
Speed is calculated by dividing the distance moved by the time taken. Details about speed can be found below.
What is speed?Speed is a term used to describe the rate of a moving body. It is a vector quantity i.e. has magnitude and direction.
Speed rate can be described as the magnitude of velocity i.e. the rate of distance traveled in a given time.
Therefore, speed can be calculated by dividing the the distance moved by the time taken.
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Speed is calculated by dividing the distance moved by the time taken.
What is speed?Speed is a term used to describe the rate of a moving body. It is a vector quantity i.e. has magnitude and direction.
Moreover, speed rate can be described as the magnitude of velocity i.e. the rate of distance traveled in a given time.
Therefore, speed can be calculated by dividing the the distance moved by the time taken.
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energy is released from atp when question 19 options: a. a phosphate group is added. b. adenine bonds to ribose. c. atp is exposed to sunlight. d. a phosphate group is remove
Answers
energy is released from atp when phosphate group is remove
Where is energy released from ATP?The phosphate tail of ATP is the actual power source which the cell taps. Available energy is contained in the bonds between the phosphates and is released when they are broken, which occurs through the addition of a water molecule (a process called hydrolysis)The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups. ATP is commonly referred to as the "energy currency" of the cell, as it provides readily releasable energy in the bond between the second and third phosphate groups.The majority of energy in an ATP molecule is stored in the bond between the last and middle phosphate groups.To learn more about ATP refers to:
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7. After dinner, the amylase enzyme action stops once it reaches the stomach. Which
of the following can explain why the amylase enzyme did not work in the stomach?
(A) There is no starch in the stomach
(B) Amylase enzyme does not digest proteins
(C) Pepsin enzyme outcompete amylase enzyme
(D) The gastric juice is too acidic for amylase enzyme
(E) The gastric juice is too basic for amylase enzyme
Handy
Answers
Why can't fragile X be cured?
Answers
Which of the following is an example of gene flow?
1. The movement of people on Earth steadily increases and alters the course of human evolution.
2. An earthquake results in the formation of a canyon, splitting a population of toads apart.
3. A fire drastically reduces the size of a white-tailed deer population. The remaining individuals spread out throughout the remaining forest.
4. A small population of grasshoppers gets blown away and isolated during a storm. The gene pool of the new population is different from the original population.
Answers
An example of gene flow is the movement of people on Earth steadily increases and alters the course of human evolution. Thus, the correct option is A.
What is Gene flow?
Gene flow is also known as gene migration. It is the transfer of genes or the movement of genetic material from one population of a species to another population.
Migration of human beings from one geographical region to another leads to people of one race making relationships with the people of another race. A European person migrating to North America, and then getting married to a North American and then giving birth to an offspring which exhibits the traits of both a European and a North American is an example of gene flow.
Therefore, the correct option is A.
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which of the following enzymes converts atp to camp? which of the following enzymes converts atp to camp? adenylyl cyclase galactoside permease b-galactosidase atp synthase
Answers
Galactosidase glucoside permease Adenocysteine Cyclase Synthesizing ATP Correct Adenylyl Cyclose turns ATP into cAMP, aiding CAP in binding.
Which enzyme from the list below breaks down lactose?Lactase, also known as lactase-phlorizin hydrolase, is an enzyme that breaks down lactose (milk sugar) into the simple sugars glucose and galactose in the small intestine of animals.
Catalase—is it an enzyme?The important enzyme catalase feeds on hydrogen peroxide, a nonradical ROS. This enzyme is in charge of neutralising hydrogen peroxide through its breakdown, hence preserving an ideal level of the molecule in the cell that is also necessary for cellular signalling processes.
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Examine figure 1 below. Which houses the DNA.
