Answer: YOUR ANSWER IS C- DECREASES
Explanation:
A P E X
phosphodiesterases 3 and 4 differentially regulate the funny current, if, in mouse sinoatrial node myocytes
Sinoatrial node myocytes' cAMP (3′,5′-cyclic adenosine monophosphate) signaling is necessary for cardiac pace making both at rest and during the sympathetic fight-or-flight response (SAMs).
The cAMP-sensitive effectors responsible for pace making in SAMs include the cardiac "funny current" (If). cyclic nucleotide-sensitive, hyperpolarization-activated (HCN) channels are responsible for its production. cAMP either binds to the HCN channels directly or activates the cAMP-dependent protein kinase (PKA), phosphorylating them, to enhance the voltage-dependent gating of the channels. The mechanism limiting cAMP signaling to a PKA-dependent route is unclear, however PKA activity is necessary for signaling between adrenergic receptors (ARs) and HCN channels in SAMs. In different kinds of cardiomyocytes, PDEs hydrolyze cAMP and create cAMP signaling domains.
Here, we look at the function of PDEs in the control of If in SAMs. When PDE and PKA inhibitors were present or not, as well as before and after AR stimulation, it was detected in whole-cell voltage-clamp assays from acutely isolated mouse SAMs. The midpoint activation voltage (V1/2) of If at rest was depolarized by general PDE inhibition, which also eliminated the need for PKA in AR-to-HCN signaling.
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What structural property of dna gave watson and crick the idea that dna replication was likely to proceed via a semiconservative mechanism?.
The complementary nature of base pairing between the two strands of DNA is the structural property of DNA that gave Watson and Crick the idea that DNA replication was likely to proceed via a semiconservative mechanism.
DNA is a double-helix structure made from nucleotides. The nucleotides of the DNA are made from nitrogenous bases, sugar, and a phosphate group.
The nucleotide bases which is complementary to each other form a ladder by which the structure of the DNA is maintained. Adenine pairs with Thymine and Cytosine pairs with Guanine of the other strand.
Each strand of the DNA acts as a template to form in a semi-conservative replication model.
It was due to the complementary nature of the DNA that Watson and Crick proposed the semiconservative model for DNA replication. Each DNA strand acts as a template through which a new strand is made that is complementary to it.
Although a part of your question is missing, you might be referring to this question:
What structural property of DNA gave Watson and Crick the idea that DNA replication was likely to proceed via a semiconservative mechanism?
A) The nitrogen content in the bases
B) The complementary nature of base pairing between the two strands
C) The repeating nature of the sugar-phosphate backbone
D) The helical shape of the double strand
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A cell in the leaf of a corn plant contains more chloroplasts than a cell in the stem of a corn plant.
Based on this observation, what inference can be drawn when comparing the cell in the stem to the cell in the leaf?
Answer:
yes cell leaves contain more
Explanation:
this is the answer
Sea-Going Crocodile vs Jaguar who will win?
Answer:
It depends on the battlefield.
Explanation:
sea going crocodile would win in the sea while jaguar would win on land.
2 stawberries picked at same time off same plant and left for 3 days in different conditions 1 decayed why
Even under high temperatures and low relative humidity conditions, storage life is typically short time. Calyx freshness was evaluated on a scale from 0 to 2, zero when calyx shows good quality, one when quality remains acceptable and two if it is no longer acceptable. Storage life is usually brief, even in high temperatures and low ratio conditions, therefore the one strawberry was decayed.
The best time to plant strawberries is within the spring, up to some weeks before the final frost date. You may extend your strawberry crop from late spring to early fall by choosing a variety spread of strawberry types. It takes roughly four weeks for June-bearing types from plant blossoming to fruit picking. Day-neutral and ever-bearing varieties both flower within the spring at roughly the same time and take roughly the same amount of time from flowering to harvest.
Counting on the variety chosen, one strawberry plant will provide 40 to 70 berries throughout the course of the season. This is often equivalent to fruit weighing between 0.7 and 1.4 kilogram’s (1.5 to 3.0 lbs) in weight. They’re perennial, strawberry plants grow year after year. The lifespan of a strawberry plant is roughly six years, however after the primary two years, fruit production noticeably declines.
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What organisms are affected by dead zones in the Gulf of Mexico
Answer:
Dead zones result from these impacts, which include algal blooms and hypoxia. Phosphorous, nitrogen, and other nutrients increase the productivity or fertility of marine ecosystems. Organisms such as phytoplankton, algae, and seaweeds will grow quickly and excessively on the water's surface.
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Low oxygen near the Gulf's bottom kills most marine life. Fish, shrimp, and crabs swim away from low oxygen, but other species are stressed or killed. Summertime brings the Gulf of Mexico dead zone.
What is a dead zone?The most severe impact of eutrophication is dead zones. Massive algal blooms are brought on by this abrupt surge in previously scarce nutrients. These "red tides" or "harmful algal blooms" can result in fish extinctions, human disease from shellfish poisoning, and the extinction of shorebirds and marine mammals.
Because of the consequently low oxygen levels near the Gulf's bottom, most marine species cannot exist there. Fish, shrimp, and crabs frequently leave the region by swimming away, but creatures that cannot swim or leave are distressed or killed by the low oxygen. Every summer, there is a dead zone in the Gulf of Mexico.
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What information can the positive and negative numbers on a number line provide?
Answer:
It can provide if a number is greater than zero or less than zero
Explanation:
What would be the expected nuclear dna content of a primary spermatocyte in the same organism?.
1.65 picogram(s), that expected nuclear dna content of a primary spermatocyte in the same organism.
In a gamete (i.e. sperm or egg), the quantity of DNA is 1c, and the range of chromosomes is 1n. Upon fertilization, each the DNA content material and the range of chromosomes doubles to 2c and 2n, respectively.Because they're produced with the aid of using mitosis, number one spermatocytes, like spermatogonia, are diploid and feature forty six chromosomes.
Each number one spermatocytes is going thru the primary meiotic department, meiosis I, to provide secondary spermatocytes, every with 23 chromosomes (haploid).A unmarried number one spermatocyte offers upward thrust to 4 sperms after meiosis. Primary spermatocyte undergoes first meiotic department to provide secondary spermatocytes (haploid). The secondary spermatocytes produce 4 haploid spermatids after the second one meiotic department.
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How do the structures of RNA and DNA differ? Only RNA, and not DNA, has a primary structure. Adenine pairs with thymine in DNA, while adenine pairs with uracil in RNA. DNA contains the sugar ribose, while RNA contains the sugar deoxyribose. The sugar-phosphate backbone of DNA is formed by phosphodiester linkages, while the sugar-phosphate backbone of RNA is formed by peptide bonds. Guanine pairs with cytosine in DNA, while guanine pairs with adenine in RNA.
Answer:
RNA_ single stranded, ribose sugar
DNA_ double stranded, deoxyribose sugar
The movement of waves in the middle of the ocean is normally
static
vertical
circular
horizontal
Answer:
Vertical
Explanation:
Since we are talking about movement, and the ocean can't be static due to many things happening around and inside it can't be static.
It is not circular and not horizontal. It is vertical. The movement of waves is vertical and this is because waves don't move up and down but vertically since wind is the usual maker of waves in the middle of the ocean.
Which of the following mutations will not result in a change to the amino acid sequence of a protein?
A)Frameshift mutation
B)Silent mutation
C)Neutral mutation
D)Nonsense mutation
Answer:
B)Silent mutation
Explanation:
A Silent Mutation is defined as a point mutation that does not change the amino acid. This occurs because more than one codon can code for the same amino acid. So while the protein was changed in the end there were no large-scale effects to the organism. This is why it is called a "silent" mutation because you cannot tell anything changes and there are no side effects.
anybody can help me with this ?
- 40 points .
Answer:
Explanation:
Endangered species because if the poachers keep hunting for its horns they may be extinct in few years
What type of cells are produced out of meiosis? plz help if you can!!
A) 4 diploid cells
B) 2 haploid cells
C) 2 diploid cells
D)4 haploid cells
Answer:
D)4 haploid cells
Explanation:
The _______ is the part in the cell that works to produce lots of energy or ______ for our bodies.
A. Cell Membrane, Glucose
B. Ribosomes, Proteins
C. Mitochondria, ATP
D. Ribosomes, ATP
Answer: C. Mitochondria, ATP
Explanation:
The mitochondria is known as the powerhouse of the cell, and it produces ATP (energy).
Is it possible to have another level after quaternary consumer?
Answer:
hmmm General classification by food source results in the four main trophic levels. It is possible to have quaternary and higher “consumers”, as even secondary consumers may also use the first trophic level as primary consumers. Generally only about 10 percent of the energy at one level is available to the next level
Explanation:
describe the major functions and components of the following systems of the body: integumentary, skeletal, muscular, and nervous.
The major functions and components of the following systems of the body
integumentary system - is one of the major organ systems that comprise skin, nails, hair, sweat glands, and sebaceous glands. It acts as the first line of defense from the external environment and works with other body systems to regulate body homeostasis.Skeletal system provides shape to the body, , protection and movement,.Muscle is a specialised tissue of mesodermal origin. About 40-50 per cent of the body weight of a human adult is contributed by muscles. They have special properties like excitability, contractility, extensibility and elasticity.Muscles have been classified using different criteria, namely location, appearance and nature of regulation of their activities. Based on their location, three types of muscles are identified : (i) Skeletal (ii) Visceral and (iii) Cardiac.
Nervous of all animals is composed of highly specialised cells called neurons which can detect, receive and transmit different kinds of stimuli. The neural organisation is very simple in lower invertebrates. For example, in Hydra it is composed of a network of neurons.The neural system is better organised in insects, where a brain is present along with a number of ganglia and neural tissues. The vertebrates have a moredeveloped neural system.
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you eat a delicious Chinese take out dinner. your body stores the fat from your meal in the form of. LOOK AT THE ATTACHMENT
write the complementary bases of the strand below according to the base pair rule. ATC CAG TAG GAC
Answer:
ATC CAG TAG GAC
R. TAG GTC ATC CTG
Explanation: According to the laws of Chargaff
T is "the complement" of A
C is "the complement" of G
and vice versa
Adenine(A) is complementary to thymine (T), and cytosine (C) is complementary to guanine (G). The complementary base of the DNA strand ATC CAG TAG GAC is TAG GTC ATC CTG.
What is the Chargaff Rule?
The Chargaff rule explains DNA base pairing. In DNA, the total number of purines is the same as the number of pyrimidines. A+G = C+T. Adenine (A) and guanine (G) are purines. Cytosine (C) and thymine (T) are pyrimidines. A purine makes a complementary base pair with a pyrimidine.
In normal conditions, adenine (A) makes a complementary bond with thymine (T), and guanine (G) makes a complementary bond with cytosine (C). Two hydrogen bonds are formed between adenine and thymine. Guanine and cytosine have three hydrogen bonds. Both strands of DNA are connected by hydrogen bonds among these nitrogenous bases. This gives stability to DNA, which remains in its double helical form.
Hence, the correct base pairing of ATC CAG TAG GAC is TAG GTC ATC CTG.
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Most species of E. Coli are harmless or even helpful forms of bacteria that are found in the human intestine. E. Coli can aid humans in digestion and provide protection from other invading bacteria, but if the bacteria move to the human excretory system, they can replace other naturally occurring bacteria (Lactobaccilli). This can lead to bladder and kidney infections. Researchers found that by replenishing the excretory system with the naturally occurring bacteria, the infection caused by E. Coli is cured. Based on the research, what inference can researchers claim about the effect of bacteria?
Answer:
The inference is that bacteria can be pathogenic or characteristic of the commensal microbiota of different organs.
Explanation:
The human coexists with commensal micro-flora or commensal biota that are in balance and protect it from other pathogenic microorganisms, that is why we constantly live with a group of bacteria that do not generate pathological conditions in our body and even promote the stimulation of the immune response. .
When this balance is broken, pathogenic or opportunistic microorganisms invade, this is how they proliferate and generate infectious diseases that threaten the balance or state of human health.
1. Independent Variable __________________________________________________________
2. Dependent Variable ___________________________________________________________
3. Control (control group) ________________________________________________________
4. Constant ____________________________________________________________________
Answer:
1.a variable (often denoted by x ) whose variation does not depend on that of another.
2.a variable (often denoted by y ) whose value depends on that of another.
3.Control group, the standard to which comparisons are made in an experiment. ... A typical use of a control group is in an experiment in which the effect of a treatment is unknown and comparisons between the control group and the experimental group are used to measure the effect of the treatment
4.occurring continuously over a period of time.
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all of the following contain only glucose exept
Answer:
I didn't understood sorryExplanation:
sorry
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Help pls
Answer:
10is a and 11 is b
Explanation:
5. Which of the following about Mendel's Law of Segregation is false?
a. It states that each of two alleles for a given trait segregate into different
gametes
Explanation:
Each gamete has an equal probability of containing either allele.
If the above parents were crossed. What is the probability that the offspring will exhibit the dominant trait?
A) 75 %
B) 50 %
C) 25 %
D) 100 %
Answer:A 75%
Explanation
Analyze “Diagram B." Of the four answers provided, which answer clearly interprets this graph?
A. The wavelengths of sunlight between 100nm and 700mm aie the wavolengths thit are absorted by chirophyll and that drive photosynthesis
B. The wavelengths of sunlight between 400nm and 700nm are thin wavelengiis at a abnarted by the mitochondria and that drive photosynthesis
C. The wavelengths of sunlight between 400nm and 700mm aro thi wavolungths that are absorted Iy the mitochendria and that drive cellular respiration
D. The wavelengthN of night between 400nim and 700nm are the wavelengths that are lnortet by chlorophyll and that drive cellular respiration
As per diagram B of the four answers the wavelength. The wavelength are given in the visible bands and range form 400 to 700 nm. As per the absorption efficiency the band B has larger capacity than the band A.
Hence the wavelength of sunlight between the 400nm and the 7000nm ae the wavelengths that are absorbed by the and mitochondria that drive the process of cellular respiration.Hence option C is correct.
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he principal role for simple sugars in living organisms is to . multiple choice form cell membranes serve as a form of long-term energy storage create genetic codes create cellular energy
The principal role of simple sugars (i.e. simple carbohydrates) in living organisms is to create cellular energy.
What are simple carbohydrates?Simple carbohydrates (e.g. glucose, fructose) are a special class of macromolecules composed of only one monosaccharide unit, which serve as a source of energy for cellular respiration.
In conclusion, the principal role of simple sugars (i.e. simple carbohydrates) in living organisms is to create cellular energy.
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Define decision making and provide two strategies that one may use to make decisions.
Answer:
Decision making is the process of evaluating alternatives and making choices among them. Two strategies that one may use to make decisions is the additive strategy and the elimination-by-aspects strategy. The additive strategy involves creating a list of attributes that affect the decision and then rating each alternative based on each attribute. This strategy is often used for simple choices. The elimination-by-aspects strategy eliminates alternatives based on their attributes and evaluates each attribute in order of importance. This strategy is often used for complex choices
Explanation:
In an ATP molecule, energy used by the cell is stored in:
A. The adenosine molecule
B. A bond between phosphate groups
C. Both A and B
D. None of the above
Answer:
B. A bond between phosphate groups
Explanation:
In an ATP molecule, energy used by the cell is stored in a bond between phosphate groups.
List some regions where physical weathering caused by water is common?Explain why
HELO AGAIN PLS
Answer :Physical weathering happens especially in places places where there is little soil and few plants grow, such as in mountain regions and hot deserts.
Explanation: