Answer:
C.It accelerates the production of a second messenger.
Explanation:
Adenylyl cyclase is an enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic adenosine monophosphate (cAMP), a second messenger that activates the protein kinase A (PK-A) protein by dissociation of its regulatory subunit from the catalytic subunit. The first step of the epinephrine signaling pathway consists of the hormone binding to the epinephrine receptor localized on the cell surface. This binding activates a G protein inside the cell, which in turn activates the adenylyl cyclase enzyme. Subsequently, adenylyl cyclase converts ATP molecules into cAMP molecules. Since cAMP transports the message of the epinephrine hormone within the cell this molecule (cAMP) is considered to be a second messenger. Finally, cAMP activates the PK-A enzyme which phosphorylates different proteins and thus triggers different biological processes.
A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inactivate all of chlorophyll A in the algae but leaves chlorophyll B intact (case 1). In a separate experiment, the scientist applies a chemical to the algae that inhibit PS I but do not affect PS II (case 2).
Which of the following results is expected?
A)in case 1, only PS I completely loses function; in case 2, no proton gradient is produced.
B)In case 1, only PS I completely loses function; in case 2, a proton gradient is still produced.
C)In case 1, both PS I and PS II completely lose function; in case 2, no proton gradient is produced.
D)In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.
Answer:
D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.
Explanation:
The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.
The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.
In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.
5. Bagaimanakah penggunaan plastik serai wangi ini dapat menjaga kesihatan?
Answer:
It has a lot of health benefits of fragrant lemongrass.
Explanation:
The use of this fragrant lemongrass take care of your health by preventing the growth of some bacteria and yeast. It also used to relieve the pain and swelling, reduce fever, improve sugar levels and cholesterol in the blood. It also have antioxidant properties which prevent the chances of diseases in the body. It is also used for the insects as an insect repellent, in short, fragrant lemongrass has a lot of health benefits.
Need this asap!!!
The diagram below shows part of the process of DNA transcription. Which
mRNA base will go in location 3?
A.Uracil
B.Thymine
C.Cytosine
D.Adenine
Answer:B
Explanation:
Answer: as of april 25th 2023 its D
Explanation:
thats what i got and i was right also im pretty sure that they switch the order
Scientists study salamanders and their ability to regenerate lost legs and tails. What additional information is essential for scientists to understand in order to apply this ability to humans who have lost limbs?
how quickly the body parts regenerate
how similar salamanders are to humans
which body parts are most often lost
which genes control regeneration
Answer:
The answer could be:
(/) which genes control regeneration
(/) how similar salamanders are to humans
(x) how quickly the body parts regenerate (salamanders' size and form does not equate to human beings)
(x) which body parts are most often lost (it was already given that it's legs and limbs)
Answer:
d
Explanation:
Cause i am the smartest
1. John observed bacteria at 100X under the oil immersion and then decided to go back to 40X
objective by raising the oil objective a little to avoid the damage to objective lens. Critique his
technique. (1 pt.)
Answer:
See the answer below
Explanation:
In the first instance, the 100X objective does not have any business touching the slide on the stage so that there would not be any reason to raise it a little in order to go back to a lower objective. At higher objectives, only the fine adjustment should be used to bring the object into focus so as to avoid the objective lens from touching the slide which can damage the objective and or break the slide on the stage.
For the X100 objective to be raised in order to avoid a damage to it, it means John allowed the objective to come too close to the slide in the first place. This should not have been so.
Increased numbers of CAG repeats in the exon of a gene is associated with certain diseases. In a specific gene, the existing CAG codons are in the 'zero' reading frame, in- frame with the AUG initiation codon. The effect of increased numbers of CAG repeats on the encoded protein is:___________. a. to silence of the gene to generate a truncated protein b. to generate a protein with a run of consecutive glutamines c. to generate a frameshifted protein product d. none of the above
Answer:
The correct answer is - option b. to generate a protein with a run of consecutive glutamines.
Explanation:
The initiation code AUG is the code for methionine and as well as the initiation code for the particular protein or peptide chain. In this protein, there is a repeat of CAG is increased with the initiation code so, even though they are in zero reading frame they code for their amino acid which is glutamine.
So. an increased number of CAG repeats will result in a protein with the a run of consecutive glutamines.
Select three types of land associated with the largest pore size of soil.
peat
swamp
beach
plains
clay
desert
Answer:
I believe the answers are beach, desert, and clay.
Explanation:
Sand is the largest mineral particle and it has more pore space between its particles.
its beach desert and clay i got it right
Create an illustration showing the application of Chargaff’s rule in the structure of DNA.
When two species interact in a way that is beneficial to both species this is what kind of relationship?
A. Parasitic
B. Mutualistic
C. Commensal
D. Symbolic
Answer:
B
Explanation:
Mutualism is a relationship between two species in which both species benefit. Certain species of bacteria in your intestines form a mutualistic relationship with you.
Answer:
D. Symbolic
Explanation:
hope that helps you out love!! <3
how is atmospheric carbon in the form of CO2 converted into a molecule that is usable to all organisms?
Answer:
The carbon-dioxide exists in the atmosphere, and it is dissolved in the water.
Explanation:
With the process of photosynthesis, it becomes organic, and by breathing, the organic gas goes back to carbon-dioxide.
The assimilation of carbon is the process when the carbon-dioxide converts to organic carbon with the help of living organisms. This organic carbon is then used for energy.
How are aquifers connected to the water cycle?
Answer:
At a certain depth below the land surface, the spaces between the soil and rock particles can be totally filled with water, resulting in an aquifer from which groundwater can be pumped and used by people. Some of the precipitation that falls onto the land infiltrates into the ground to become groundwater.
Explanation:
is what i found on google.
hope this helps!
The internal urethral sphincter is comprised of
Answer:
1) the internal urethral sphincter (IUS), which consists of smooth muscle and is continuous with the detrusor muscle and under involuntary control, and 2) the external urethral sphincter (EUS), which is made up of striated muscle and is under voluntary control.
Explanation:
Hope this helped!
The use of solar panels has increased in the last ten years. A benefit of using solar energy would include
Answer: using less fossil fuel to meet energy needs
Explanation: i got it right
Water is constantly in motion and_______. Pls answer ☯︎︎ᴥ︎☯︎︎
Answer:
still
on the top of the ocean or lake the water is always moving but down below the top of the water it will be still or nonmovent
What does an urn-shaped age pyramid represent?
Answer:
It represents young or rapidly growing population. In urn-shaped age pyramid, the number of reproductive individuals is higher than the number of pre-reproductive individuals. It represents declining or diminishing population with negative growth.
what is malcoms prediction for hammonds island in jurassic park
Answer:
I quote: "Life cannot be contained. Life breaks free. Life... finds a way"
Explanation:
Answer the question - Why is it important for scientists and engineers to work together to solve problems?
Answer:
it is important for them to work together because they can come together with the results form each person and see which is right and which is wrong and learn for their mistakes
Explanation:
Using cases to reason—Scientists and engineers often have to solve problems that others have confronted before. When scientists and engineers work to solve a problem, they may write up their experience as a case study for others to learn from. They will even write up the case study if their solution did not work.
Why can a planet orbit circular?
Answer:
Explanation:A circle is merely a special case of an ellipse. However, the planets do not quite move in ellipses either. The increased kinetic energy of a planet as its distance from the Sun decreases causes it to behave as though it had a greater mass, which results in the point of the orbit furthest from the Sun precessing.
why do we need transcription?
SOMEONE PLZ HELP ME WITH THIS?!?!?
Table 1:
17 protons and 17 electrons
78 protons and 78 electrons
32 protons and 18 electrons
38 protons and 36 electrons
13 protons and 13 electrons
15 protons and 18 electrons
14 protons and 14 electrons
Table 2:
Ba2+ ion
Radon
Polonium
Tin
Selenium
Cesium
Magnesium Ion
IT WAS SUPER TOUGH!!!
Answer:
oh too hard
Explanation:
9. What type of bond is pictured in the image below?
a. covalent bond
b. ionic bond
c. metallic bond
d. electron bond
ONLY 9
Answer:
c. metallic bond
Explanation:
Metallic bonding, unlike other forms of atomic bonding, involves delocalized elections. The negatively charged electrons form a "sea" around metal cations. Electrons within the valence shells of metals are only held loosely within their molecular orbits- the metals are held together due to the strong attraction between these delocalized electrons and positive nuclei.
The electrons are typically described as mobile, free, and delocalized. These traits are responsible for several metallic properties such as:
electrical conductivityheat conductivityelectronegativitymalleabilityAnswer: Number 10 is also C
Explanation:
Describe the anatomy of the typical long bone
Answer: HERE'S YOUR ANSWER!!!
Explanation:
Long bones are those that are longer than they are wide. The end of the long bone is the epiphysis and the shaft is the diaphysis. When human finishes growing these parts fuse together. The outside of the flat bone consists of a layer of connective tissue called the periosteum
Which occurs during the light-dependent reactions of photosynthesis?
a.Light energy is absorbed and then converted into chemical energy in the form of ATP and NADPH.
c.Organic molecules, such as proteins, lipids, and nucleic acids, are produced.
d.None of the above
b.ATP and NADPH are used to make glucose
Answer:
In light-dependent reactions the energy from sunlight is absorbed by chlorophyll and converted into chemical energy in the form of electron carrier molecules
Explanation:
Like ATP and NADPH light energy is harnessed in Photosystems I and II both of which are present in the thylakoid membranes of chloroplasts
How many valence electrons does Neon have and does it have cations and anions???
Answer:
Neon has eight valence electrons and it does not have cations or anions.
Explanation:
Neon is a noble gas, meaning it has already fulfilled the octet rule and has eight electrons in its valence electron shell. Hence, it does not want to lose or gain any more electrons, and does not have cations or anions.
Hope this helped!
Answer:
Neon has eight valence electrons and it does not have cations or anions.
Explanation:
this is the question
Answer:
no
Explanation:
Answer:
see on the comment
Explanation:
sorry see on the previous comment I am in hurry sorry
Why is meiosis important in maintaining genetic diversity?
Question 6 options:
A Meiosis creates diversity by cutting each chromosome exactly in half.
B The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.
C It creates sex cells (eggs or sperm) that have exactly the same alleles (version of a gene) as the parents.
D The chromosomes in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy.
Answer:
We now know that meiosis is the process of chromosomal reduction which allows the production of haploid germ cells necessary for sexual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.
Explanation:
Brainliest please?
Meiosis is a specialized form of a cell division in which number of chromosomes is reduced to half. The reduction in chromosome number is achieved by one round of DNA replication and two rounds of chromosome segregation.
Meiosis produces genetic variation by the process of recombination.Recombination occurs when two molecules of DNA exchange pieces of their genetic material. The process of recombination occurs during the prophase stage of meiosis I. In meiosis, crossing over occurs between the non-sister chromatids in a homologous pair (one from each parent) of chromosomes.The correct answer is option B. The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.
Other options-
A. Meiosis creates diversity by cutting each chromosome exactly in half - incorrect .In meiosis the chromosome number is reduced to half.
C. It creates sex cells (egg or sperm) that have exactly the same alleles (version of a gene) as the parents-incorrect. The sex cells produced are not genetically identical to the parent cell.
D. The chromosome in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy-incorrect. In meiosis the chromosomes are not exactly copied.
Learn more about meiosis -
https://brainly.com/question/12327654?referrer=searchResults
Q: Predict and describe some possible effects to your entire food web if the following happened:
A mysterious virus has sickened the secondary consumer fish. There
are few survivors. Fortunately, this virus is not affecting organisms on any other trophic levels. However, the loss of these organisms is
affecting the rest of the food web. Please describe the possible effects:
Answer:
Less fish will disrupt the predators in the ocean. Sharks, and other predators in these oceans need a food source such as fish if this Virus does indeed kill these many fish. Meaning the virus is in this fish, It might spred to predators that eat these fish. Still if the predators of the food chain dont find these food sources for them i am sure they will die of starvation.
Explanation:
If a food source for animals is obsulete i am sure the predators of the animals will have starved to death like how, the Hot blob is affecting the Cassins auklet due to the Less amount of phytoplankton in the oceans.Where does the H+ come from that makes ATP synthase work?
Electron Transport Chain
Krebs cycle
Glycolysis
Describe the way convection works and how it might work within the earth? -geology question
Answer:
Magma in the Earth's mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.
Explanation:
Explain the difference between the calorie (lowercase C) and the Calorie (Capital C)?