Answer:
Ethanol is a non polar molecule.Therefore it passes through the cells membrane easily by diffusion like other non polar like CO2 and water.However, glycine is an amino acid ( the simplest amino acid) a charged molecule /polar molecule/.it can not therefore pass through the bilayer by simple diffusion because of the phospholipid bi-layers. Therefore special transport proteins are needed for its passage across the cell membrane.
Example-GLYT 1 and 2 are the carrier proteins specific for glycine transport across the membrane.
G
Explanation:
A young man who works on a ranch and lives in the log bunkhouse experiences sudden fever with muscle aches. A few days later he begins to cough and have difficulty breathing, and goes to an urgent care clinic. His blood pressure is low. A blood sample reveals a low platelet count. A Gram stain of a sputum sample shows only a few small bacteria present. Which of the following is the most likely infecting agent?
A) Bacillus anthracis
B) Hantavirus
C) Histoplasma capsulatum
D) influenza
E) Mycoplasma pneumonia
Answer:
The correct answer is: B) Hantavirus.
Explanation:
Hantavirus is an infectious disease caused by a family of viruses that exist in rodents such as rats. These viruses can either cause Hantavirus Pulmonary Syndrome (HPS), especially in the Americas; or Hemorrhagic Fever with Renal Syndrome (HFRS), which is most common in Europe and Asia.
The young man described has symptoms that match the common symptoms of Hantavirus Pulmonary Syndrome, such as fever and muscle aches (known as the 'early symptoms'), as also coughing and having difficulty breathing (known as the 'late symptoms'). Some of these symptoms can easily be confused with Influenza, but the shortness of breath and the fact that the patient has a history of working and living in a rural environment suggest Hantavirus.
HPS also produces a low platelet count and high white cell count.
Infection by Bacillus anthracis is uncommon, plus the lack of symptoms that match the disease (such as a sore throat) and the existence of muscle aches in the patient (which does not match Anthrax) can help discard this option.
Histoplasma capsulatum is a fungus that can cause lung infection when its spores are inhaled. Its symptoms are similar to HPS but with the addition of red bumps in the legs and joint pain, not muscle aches.
Mycoplasma pneumonia is a bacteria that produces pneumonia. Most of its symptoms match the patient except for the lack of a sore throat.
carbohydrates are used for what
Carbohydrates are used for short term energy. It also stores energy.
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Function of carbohydrates
Carbohydrates provide fuel for the central nervous system and energy for working muscles. They also prevent protein from being used as an energy source and enable fat metabolism, according to Iowa State University. Also, "carbohydrates are important for brain function," Smathers said.
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how are messages carried throughout the human body from the brain to the nervous system
In humans, oculocutaneous (OCA) albinism is a collection of autosomal recessive disorders characterized by an absence of the pigment melanin in skin, hair, and eyes. That is, normal pigmentation (A) is dominant over albinism (a). For this question, assume it is a single gene with two alleles. Assume it is a single gene with two alleles. If two people have normal pigmentation, what possible phenotypes may be observed in their offspring?
Answer:
The definition of the problem is listed in the explanation segment below.
Explanation:
The parent phenotype is an albino on every one of them. Albino gene seems to be located primarily while it has its whole genotypes in such a recessive state called "aa". When this trait becomes autosomal, it does have an equivalent amount of alleles across both parent members. The gametes including its albino genotypes.⇒ [tex]Mother \ aa\times Father \ aa[/tex]
⇒ [tex]a\times a[/tex]
Genotype including its offspring - albino. Well, all offspring will also have albino phenotypes.So that the above is the right answer.
The Bartholomew J, an American shipping vessel, docks at a port in Australia. A small school of fish makes its way from the bilge, a hollow area under the ship that collected seawater, into the water of the dock. It is a new species to the area and begins to thrive. What term is used to describe this species?
The species of fish is referred to as a(n) BLANK
species.
Answer:
hello it might be invasive I think if not I am sorry
Answer:
Invasive.
Explanation:
Because tending to spread especially : tending to invade healthy tissue invasive cancer cells. 2 : involving entry into the living body (as by incision or by insertion of an instrument) invasive diagnostic techniques. Other Words from invasive.
Name 3 hormones that have a direct impact on calcium metabolism relating to the skeletal system
Answer:
Three major hormones (PTH, vitamin D, and calcitonin) interact to maintain a constant concentration of calcium, despite variations in intake and excretion.
Explanation:
The second major hormone involved in the regulation of calcium metabolism and skeletal remodeling is vitamin D, which includes cholecalciferol (vitamin D3) of animal origin, as well as ergocalciferol (vitamin D2) of plant origin.
Match the terms to their definition.
the number of individual organisms born into a population in a given year
the movement of individuals out of a population
the number of individual organisms that die in a population in a given year
the movement of individuals into a population
Answer:
Birth rate: the number of individual organisms born into a population in a given year
Emigration: the movement of individuals out of a population
Death rate: the number of individual organisms that die in a population in a given year
Immigration: the movement of individuals into a population
Matching these definitions to their appropriate terms
Birth rate The number of individual organisms born into a population in a given yearEmigration: The movement of individuals out of a populationDeath rate : The number of individual organisms that die in a population in a given year. Immigration : The movement of individuals into a populationIndividual organisms enter a population either by immigration or by birth while individual organisms leave a population by either emigration or death. While the general term used to describe the movement of individuals in and out of a population is migration.
Death rate is number of deaths that occurs in a particular population over a period ( usually 1 year ) while Birth rate is the number of births that occurs in a population over a period as well.
Hence we can conclude that the terms matching each description as mentioned in the question are , Birth Rate, Emigration, Death rate and immigration.
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A bacterium synthesizes DNA from each replication fork at a rate of 1000 nucleotides per second. This bacterium completely replicates its circular chromosome by theta replication in 30 min. How many base pairs does the chromosome contain
Answer:
180,000 nucleotide pairs = 180 kilobase pair (kbp) = 0.18 Megabase pairs (Mbp)
Explanation:
Synthesis rate = 1,000 nucleotides (nts) x second
1 minute = 60 seconds
30 minutes = 60 x 30 = 1,800 seconds
>> 1,800 seconds x 1,000 nuleotides per second = 180,000 nts
A typical bacterial genome contains approximately 5 Mbps of DNA that conforms a circular chromosome localized in the cytoplasm. In consequence, in this case the bacterial genome is small (0.18 Mbp).
DNA replication is a process in which the fragment gets replicated to form two indistinguishable replicas of itself. It is vital for the growth and passing of hereditary information to the newly produced daughter cells.
180,000 nucleotide pairs are formed in the replicating bacteria.
This can be calculated by:
[tex]\text{Synthesis rate} & = 1,000 \;\text{nucleotides (nts)} \times \text{ second}[/tex]
We know that 1 minute = 60 seconds So, 30 minutes = 60 x 30 = 1,800 seconds[tex]\text{1,800 seconds} \times \text{ 1,000 nucleotide per second} & = 180,000 \;\text{nts}[/tex]
The bacterial genome thus produced will have 180,000 nucleotide pairs or 180 kilo-base pairs (kbp) or 0.18 Megabase pairs (Mbp) in the chromosome.
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(e) Predict the effect of the removal of the final electron acceptor on the rate of carbon fixation by the chloroplast. Justify your prediction
Answer:
The ATPs produced during Chemeiosmosis, in the chloroplast is needed during Calvin cycle to fix carbon for production of CHO, protein and fats during conversion of 3C-glyceride phosphate(GP) to 2C- triose phosphate.(TP) .
The ATPs is needed for this reduction to take place in the presence of NADPH(which is oxdized to NADP).
Therefore, if the final electron acceptor is removed, there will be no electron transport chains which generated the PMF, for pumping H+ across into the thylakoid membrane of the chloroplast, to generate the electrochemical gradients, needed for the energy for ATPase synthase enzymes,to synthesize ATPs production.
Therefore, the removal of the electron acceptor (oxygen) leads to stoppage of electron transport chain, and hence loss of ATP s, and therefore, no Carbon fixation as CHO, or protein, or fats.
Explanation:
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The answer is A.
Neither B nor C make sense, because in a sensible experiment, we dont try to mess up the results or replace results.
A tall sheep is crossed with a short sheep, and the progeny are all intermediate in size between
the two parental sheep. This could be an example of?
Answer:
Incomplete dorminance.
Explanation:
Incomplete dorminance occurs when two heterozygous alleles are expressed together which is as a result of dorminant alleles not completely masking the recessive alleles and the two alleles blend together and are expressed phenotypically.
The above question is incomplete dorminance because the allele for tallness in the sheep does not completely mask the allele for shortness and these two alleles blend together to produce intermediate progeny that are expressed phenotypically.
what is the answer of this question?
Answer:
(A) temporary allergy to milk products has developed
what type of epithelium has dome shaped on the apical surface?
Answer:
Transitional epithelium has dome shaped cells on the apical surface.
Answer:
Transitional epithelium
Transitional epithelium has dome shaped cells on the apical surface. Pseudostratified epithelium is a type of epithelium that has cells which all touch the basement membrane. Pseudostratified epithelium is only one cell layer thick.
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Explanation:
What type of molecules are antigens?
what are primitive features of lycopodium?
Answer:
Lycopodium is known as Club moss. It is a vascular plant which makes it an advanced type of plant. It however has some primitive features which includes Production of spores. The plant has an underground sexual reproduction system which produces gametes for this process and also produces spores which are used in asexual reproduction of the plant. The two forms alternate with each other. Another primitive feature is their lack of flowers.
73 The messenger RNA sequence that codes for the amino acid chain
TYR-ARG-GLY-VAL-ALA-LEU is
(1) UAU-CGA-GUU-UUU-UUA-CUC
O (2) UAU-CGA-GGA-GUU-GCG-CUC
O (3) CUC-GCG-GUU-GGA-CGA-UAU
O (4) CUC-UUA-UUU-GUU-CGA-UAU
Answer:
(2) UAU-CGA-GGA-GUU-GCG-CUC
Explanation:
The mRNA is produced by the process of transcription which transcribes the DNA to mRNA which can be recognised and read by the ribosomes.
The ribosomal subunits get attached to the mRNA which scans or read the mRNA in the form of codons or triplets of nucleotides. These codons code for particular amino acid and about 64 codons code for 21 amino acids.
In the given question, the sequence of the amino acids in the peptide has been provided based on which the sequence of codons can be easily decoded.
For the provided peptide, the sequence of amino acid will be Option-2 which is UAU-CGA-GGA-GUU-GCG-CUC as this sequence of codons has the codons arranged according to the sequence of the amino acid.
Thus, Option-2 is the correct answer.
UAU-CGA-GGA-GUU-GCG-CUC is the sequence code that encodes the mRNA TYR-ARG-GLY-VAL-ALA-LEU
A codon table is usually employed in translating the genetic code into amino acid sequencesmRNA plays a major role in protein synthesis which originate from the joining together of individual amino acids in the ribosomes.
These amino acids are encoded by three letters that form a codon. There are 64 different codons in the genetic code encoding for the entire 20 amino acids.
The amino acid chain is thus decoded as:
TYR - UAUARG - CGAGLY - GGAVAL - GUUALA - GCGLEU - CUCTo learn more about the genetic code see the link: https://brainly.com/question/21272924?referrer=searchResults
*Penguins are adapted to live in the antarctic. Which of the following is
NOT true?
A)The dark coloured feathers reflect heat from the sun
B)Their webbed feet make them powerful swimmers
C)They have overlapping feathers to waterproof them
D)They have thick skin and lots of fat to keep them warm
Answer:
B their webbed feet make them powerful swimmers
Viruses reproduce by .
the virus attaches itself to the host cell and inserts it's genetic material into it. then the host cell spreads the viruses genetic material which will result in spreading the virus.
______ is the process responsible for the situation above. This process can cause DNA to change in many ways. Three such ways are ______, _____, and _____.
Answer:
Explanation:
Mutation can cause a change in DNA to change in many ways.
Mutation is the sudden change in the genome of an organism that can be heritable from parent by their offspring.
Missense mutation - This occur when a base pair is substituted for by another leading to the formation of an entirely new amino acid.
Nonsense mutation - This occurs when a base pair is substituted for by another leading to the formation of a new amino acid. The new amino acid form therefore send a stop signal to the sequence of amino acid been built.
Insertion or deletion - Insertion mutation inserts new base pair into the sequence changing the number of the DNA base while deletion deletes a base pair changing the number of DNA base from the amino acid sequence.
Which of the following does not use the sun's energy in any way?
A. Wind
B. Geothermal
C. Biomass
D. Coal
Which of these factors will affect the friction on a road?
a) Oil
b) Water
c) Ice
d) all of the above
Answer:
all of the above
Explanation:
Oil,Water and Ice
all of these will affect the friction on the road.
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Answer:
D-all of the above
Explanation:
Force of friction is the force which opposes the motion of an object over a surface
The force of friction acts between the object and the surface.
A ball rolling on ground gradually slows down and comes to rest due to force of friction between the ball and the ground.If we stop pedaling a bicycle, it gradually slows down and comes to a stop due to force of friction between the wheel and the road.list and explain the three classes of enzymes
Answer:
Oxidoreductases, transferases and hydrolases are the most abundant forms of enzymes.
Explanation:
What are examples of harmful mutations
Answer:
One example of a harmful mutation is an animal's different coloring than others in its species. If a deer was albino, it would have a much harder time blending in, escaping predators and most likely have trouble finding a mate.
Explanation:
The transport of water from the roots to the leaves of a green plant against the force of gravity is facilitated by
a. adhesion
b. cohesion
c . surface tension
d . capillary action
Which of the following statements about cell differentiation is true?
A. Cell differentiation occurs only in adult organisms
B. Cell differentiation cannot be affected by the environment
C. Cells differentiate because the dna in each cell of an organism is different
D. Cells differentiate because different areas of the dna are activated in each cell type.
Answer:
I think is B, Cell differentiation cannot be affected by the enviroment
n
In order to extend the civil rights of slaves after the Civil War, the United States
banned slavery with the Fourteenth Amendment and created new protections with the Thir
banned slavery with the Fifteenth Amendment and created new protections with the Thirtee
banned slavery with the Thirteenth Amendment and created new protections with the Fourt
banned slavery with the Fourteenth Amendment and created new protections with the Fiftes
Answer:
C. banned slavery with the Thirteenth Amendment and created new protections with the Fourteenth Amendment.
Explanation:
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The 14th Amendment to the U.S. Constitution, ratified in 1868, promised “equal protection of the laws” to all citizens, including former slaves, and extended citizenship to anybody born or naturalized in the country. Thus, option C is correct.
What is the civil war?War between established parties within the same state is known as an intrastate conflict or civil war (or country).
One side's objective may be to seize power in the nation or a specific area, secure regional independence, or alter governmental practices.
One of their allegations was that the Farm was operated in violation of the 13th Amendment, which forbids “slavery or involuntary servitude, except as a punishment for crime,” since it amounted to slavery.
Therefore, banned slavery with the Thirteenth Amendment and created new protections with the Fourteenth Amendment.
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One of the three amendments to abolish slavery that were approved during the Reconstruction era.
the brain is located in the ______ cavity?
Answer:
cranial Cavity
Explanation:
The brain occupies the cranial cavity, which is lined by the meninges and which contains cerebrovascular fluid to cushion blows.
The table below compares three galaxies the information about galaxies is correct in
Answer:
A. Column 1
Explanation:
The information in column 1 is correct for all galaxy but information in coulmn 2 and Column 3 has some incorrect information about Elliptical galaxy.
Information about spiral galaxy is correct in all three columns that spiral galaxy has pinwheel shape and made up of several stars, dust and gas particles hold together by gravitational force.
Elliptical galaxy has round or oval shape and made up of mostly old stars and do not have much gas and dust particles which are hold together by gravitation force and not by electrical force.
Irregular galaxy has no defined shape as of spiral and elliptical and are made up of large amount of gas and dust and forms new stars which allow them to look brighter.
Hence, information in coulmn 1 is correct for all the galaxy.
Answer:
Column 1
Explanation:
After examining this ecosystem,
identify and list 10 things the features you
think create this ecosystem.
Answer:
Various biotic & abiotic elements create ecosystem.
Explanation:
Ecosystem is a geographic system where plants, animals, other organisms, weather & other climatic factors create an ambience of prevailing life.
Ecosystem has following components :
Biotic Components : Living organisms & creatures, biodiversity Abiotic Components : Non Living organisms like Water, Air, Land etcDifference between Squamous epithelium and Stratified epithelium. (Pls answer quick)
Answer:
squamous epithelium consists of a single layer of flat cells. It is found in lungs,heart and blood vessels.It allows the movement of materials across it.
stratified epithelium has many layer of flat cells.It is present in lining of oesophagus and mouth and also over the skin
