Answer:
The correct answer is: -31 mV
Explanation:
Given:
Intracellular fluid concentration = 10 mM
Exracellular fluid concentration = 1 mM
temperature = 237+37 = 310 k
Z = 2
F= 96500 C mol-^1
R = 8.314 J MOL-^1K-^1
Formula -
Ex = (RT/ZF) ln ([x]out/[x]in)
= [tex]\frac{8.314*310*2.303}{2*96500} log 10 \frac{1mM}{10mM}[/tex]
= -0.03075447679*1/10 log 10
= - 31 mV
Which statement describes commensalism?
1.A relationship where one species benefits and the other is not affected.
2.A relationship where both species benefit
3.A relationship where one species benefits and the other is harmed
4.A competition for the same food source
Answer:
3
Explanation:
commensalism is the third one
Match each genetic principle Mendel described to its correct explanation.
This is a matching one. you have to match the lettered to the non lettered.
One trait will mask, or cover up, another trait.
Two alleles fora trait separate during gamete formation.
Alleles for different traits separate independently of one another during gamete formation.
a.
Principle of Independent Assortment
b.
Principle of Dominance
c.
Principle of Segregation
Answer:
i think it will B,C and A hope it helps
What is the net charge of histidine at pH = pKa2?(pKa1 = 1.8, pKa2 = 6.0, pKa3 = 9.3
Answer:
The answer is explained in the steps
Explanation:
I
D
K
W
H
A
T
T
H
E
A
N
S
W
E
R
I
S
!
the different wavelengths of energy release by the sun is called what?
the visible spectrum
the electromagnetic spectrum
ROYGBIV
thermal energy
Answer:
The electromagnetic spectrum
Answer:
electrictromagnetic
spertum
Like all valid scientific theories, modern cell theory
Answer:
builds on the work of earlier scientists
Explanation:
hope it helps
consider the following at 8 p.m. a diabetic is found to have a blood pH of 7.33 is Brian tells his diaphragm to contract more frequently so that his breathing rate increases consider how is considering homeostasis is restored what effect would this have on his PH range is hicity and hydrogen ion concentration .
Answer:
Considering that homeostasis is restored in the patient, his blood pH range would return to normal levels (7.35-7.45), and his hydrogen ion concentration in the blood would normalize. The effect of normalizing the body by getting rid of excess hydrogen ions is achieved by concentrating these ions into the urine for expulsion, therefore increasing the pH levels of urine.
Medical Disclaimer: The information on this site is for academic purposes only and is not a substitute for professional medical advice.
Explanation:
Acidosis is the condition wherein excessive acid build-up within the body causes the blood pH to become lower than normal (normal pH range 7.35-7.45). This may be due to an excessive loss of bicarbonate in the blood, also known as metabolic acidosis, or due to an impairment in the elimination of carbon dioxide in the blood from poor lung function, also known as respiratory acidosis. The body's natural response to acidosis is to increase the breathing rate to eliminate carbon dioxide in the blood, restoring the natural pH of the body.
In people with diabetes mellitus type I, the lack of insulin causes cells to breakdown fat aside from glucose as an energy source. This process produces ketones as a metabolic by-product for energy but also causes the body to be acidic. This is known as diabetic ketoacidosis.
Scientists can use mutants to study metabolic pathways. These organisms have a mutation in a gene encoding a metabolic pathway enzyme that results in the inactivation of that enzyme. Saccharomyces cerevisiae (a yeast species) mutants are available that grow on fructose, but not glucose. This growth defect results from a mutation in the gene encoding what enzyme?
a. phosphoglycerate kinase
b. enolase
c. pyruvate kinase
d. phostphoglycerate mutase
e. Phosphoglucose isomerase (phosphohexose isomerase or glucose-6-phosphate isomerase)
Answer:
The correct answer is - e. Phosphoglucose isomerase (phosphohexose isomerase or glucose-6-phosphate isomerase)
Explanation:
Phosphoglucose isomerase (phosphohexose isomerase or glucose-6-phosphate isomerase) is an enzyme that catalyzes the conversion of the glucose-6-phosphate to fructose-6-phosphate or fructose-6-phosphate to glucose-6-phosphate.
In the given question there most likely a mutation that takes place in Phosphoglucose isomerase as it is not able to convert glucose to fructose which is a growth defect.
why do distantly related species in very different places sometimes share similar traits?
How many nucleotides equals 1 amino acid ?
Answer: Three nucleotides
Explanation: Three nucleotides encode an amino acid. Proteins are built from a basic set of 20 amino acids, but there are only four bases. Simple calculations show that a minimum of three bases is required to encode at least 20 amino acids.
A codon is a group of three nucleotides in DNA or RNA that is used to encode genetic information. Each codon represents a particular amino acid or a signal to cease the production of proteins. Thus, there are three nucleotides for every amino acid in the interaction between them.
Here is a more thorough justification:
The genetic code is made up of codons, which are groups of three nucleotides apiece. Four distinct nucleotides—adenine (A), cytosine (C), guanine (G), and thymine (T) in DNA, or uracil (U) in RNA—can be combined to create a total of 64 potential codons (43).
These codons act as informational units that specify the use of particular amino acids while synthesizing proteins.
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Which motion of particles across a membrane requires energy?
Answer:
[ANSWER]
Explanation:
When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it active transport.
Calcium nitrate is a compound commonly used as a plant fertilizer in agriculture and also in
wastewater treatment facilities. Let's suppose you need to prepare a 0.2 molar (0.2 M)
solution of calcium nitrate to spray a crop field. You will need to prepare 500 Liters to have
enough of this solution to spray the entire field. How much calcium nitrate will you need?
Answer:
16400g
Explanation:
The amount of Calcium nitrate {Ca(NO3)2} that will be needed can be calculated as follows:
Molarity (M) = number of moles (n) ÷ volume (L)
According to this question, molarity = 0.2M, volume = 500L
number of moles = molarity × volume
number of moles (n) = 0.2 × 500
n = 100moles
Using mole = mass/molar mass
Molar mass of Ca(NO3)2 = 40 + {14 + 16(3)}2
= 40 + (14 + 48)2
= 40 + 62(2)
= 40 + 124
= 164g/mol
Mass = mole × molar mass
mass = 100 × 164
mass = 16400g of Ca(NO3)2
Where does the CO2 come from that is used in the Calvin Cycle?
Answer:
It comes from the atmosphere and more specifically, cellular respiration.
Explanation:
Answer:
Paul and Jennifer university are stadying
The stomach makes a substance that gives the correct pH for enzyme action. Name this substance.
Answer:
The stomach produces hydrochloric acid.It kills many harmful microorganisms that might have been swallowed along with the food.The enzymes work best in acidic conditions-at low pH
Hydrochloric acid is an important component of the gastric juice in animal species such as humans. This maintains the pH in the stomach.
What is Hydrochloric acid?Hydrochloric acid is also known as muriatic acid, it is an aqueous solution of the compound hydrogen chloride. Hydrochloric acid is a colorless solution with a distinctive pungent smell. It is mainly classified as a strong acid. However, it is a component of the gastric acid in the digestive systems of most of the animal species, including humans. Hydrochloric acid is an important component of the digestive system.
Hydrochloric acid (HCl) is a part of the gastric juice. It plays an important role in creating the pH required for pepsin activity and for the maintenance of this pH. Parietal cells in the stomach are responsible for the production of HCl acid by secreting hydrogen and chloride ions separately. When pepsinogen and hydrochloric acid exist together in the gastric juice, pepsin is converted into its active form.
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Which gland is known as the "master gland" because it sends chemical messages to many other glands?
thyroid gland
thymus gland
pineal gland
pituitary gland
Answer:
Pituitary gland is known as the master gland
Everyone in Smurfette’s family has light blue skin, which is the dominant trait for body color in her hometown of Smurf Valley. Her family brags that they are a "true bred" or "purebred" line. She recently married a nice boy who has light yellow skin, which is a recessive trait. Create a Punnett square to show the possibilities that would result if Smurfette and her new husband had children.
Answer:
All their descendants will be heterozygous for the skin color, Bb, expressing blue skin.
Explanation:
Available data:
Smurfette has light blue skinHer family is a "true bred" or "purebred" line.She married a boy who has light yellow skinblue skin is the dominant trait expressed by the B alleleyellow skin is a recessive trait, expressed by the b alleleCross: Smurfette x Husband
Parentals) BB x bb
Gametes) B B b b
Phenotypes) blue skin yellow skin
Punnett square)
B B
b Bb Bb
b Bb Bb
F1) 100% of the progeny will be heterozygous for the skin color, Bb
100% of the progeny will be blue-skinned.
Note: Although the progeny is blue-skinned, they are not true-bred anymore.
Which increases as a population grows?
carrying capacity
competition
available habitat
food supply
Answer:
B:competition
Explanation:
i had this question
an earthquake occurs when part of the solid Earth below the surface suddenly _____.
Answer:
brainliest please
Explanation:
shifts
When an earthquake occurs an area of the crust will move very suddenly and with a great release of energy. The point of the actual rock rupture is called the focus . The focus is usually found far beneath the surface. The point directly above the focus on the surface of the Earth is called the epicenter.
Answer: When an earthquake occurs an area of the crust will move very suddenly and with a great release of energy.
Explanation:
when u and the bois take nerf to far
Answer:
lol hahahaha have a great day and thank u for these free points
is the penguin a bird?? please help
<3
Answer:
Yes, it is.
Explanation:
Penguins are a species of seabird that lives in the southern hemisphere, in areas close to Antarctica, characterized by its cold and wide expanses of sea without land. In this context, penguins are capable of living in these temperatures and feeding on fish and other marine elements. In addition, they are unable to fly, but not so to move through the sea using their wings for it.
Which of the following blood vessels would have the highest blood pressure?
A dilated vessel with high blood volume
A constricted vessel with high blood volume
A dilated vessel with low blood volume
A constricted vessel with low blood volume
Answer:
a constricted vessel with high blood volume
Explanation:
because the size or area within affected blood vessels is reduced by vasoconstriction. Therefore, the blood flow is often decreased as blood vessel pressure is lower. The pressure or power of blood flow is increased at the same time, which results in higher blood pressure is the force exerted by this.
Which completely transformed scientific study?
the Scientific Revolution
the Enlightenment
the Renaissance
the Reformation
Answer:
Enlightenment
Explanation:
These all transformed scientific study in a huge way, so its hard to answer without context. But the Enlightenment had the largest growth in this area
How do exogrya and pycnodonte differ from modern day oysters?
Answer:
This oyster occurs very commonly in the oyster beds of the Navesink formation at Big Brook. from Exogyra by its non-spiral nature and lack of ornamentation. Size: Pycnodonte can be between 2 to 10 cm (about . ... Some older sources label the genera of this oyster as Gryphaea.
#carryONlearningwhere is the equator of a cell
Answer:
Where the cell divides
Explanation:
I think the equator, or equatorial plate, is the midline of the cell where duplicated chromosomes position during mitosis.
The equator of a cell is where equator divides.
Cell:
Cell is the basic unit of life. There are two types of cell : prokaryotic cell and eukaryotic cell. Cell divides by the process of mitosis and meiosis. Mitosis is an equational division and meiosis is reductional division.
Cell division is important for cell growth and division. Cell division starts at the nucleus. In nucleus there are different chromatin material. Chromatin condensed and form a chromosome.
Cell division starts at the equator of the cell. There are four phases : Prophase, metaphase, anaphase and telophase. During metaphase all the chromosome align at the equator.
Therefore, The equator of a cell is where equator divides.
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The ability to produce surviving offspring is called
Answer:
Fecundity
Explanation:
It can also describe the reproductive rate of an individual organism.
Which living things should you be able to find near you the next time you spot a squirrel?
(PLEASE ANSWER FAST)
Answer:
Small birds, green plants, snakes, lizards, humans, rodents, fungi, insects.
Explanation:
Squirrels are known to be herbivores. Therefore, they can be found around budding plants and they also feed on the parts of the plants such as their seeds and fruits. Squirrels live in the same environments with humans. At times, they feed on dead rodents, lizards and snakes. They also feed on insects and fungi.
The squirrel belongs to a family of rodents known as the Sciuridae. They are tree-dwelling animals with a good sense of vision.
Which is NOT an advantage of Asexual Reproduction?
enables an organism to spread over an area quickly
reproduce rapidly
mutations can occur
reproduce without a mate
Answer:
Reproduction without the male
What is aggressive mimicry?
At which stage of meiosis I does the exchange in genetic material between homologous chromosomes result in recombinant chromosomes?
prophase 1
metaphase I
anaphase 1
telophase 1
Previous
Answer:
Prophase 1
Explanation: idonknow
Answer:
A. Prophase 1
Explanation:
Solve the system of equations.
y = 5x +4
y=7x + 6
O (-1,11)
O (-1,-1)
0 (-1,-1)
O (-4,-1)
Which one is it
Answer:
O
Explanation:
what happens to the field of view when you decrease the magnification power?
Answer: Increases
Explanation:
Field of view and magnification power are inversely proportional to each other. Decreasing the magnification (zooms things out) which means we can see a lot more of the sample, which means the field of view increases.