Hydrophilicity and large size are the two properties that does not allow a molecule to cross the lipid bilayer without help.
Hydrophilicity is the property of loving water. The molecules that can easily interact with water are called hydrophilic. These are generally the polar molecules. The phosphate head of the lipid bilayer is also hydrophilic. Other examples are: alcohol, ammonia, urea, etc.
Lipid bilayer is the plasma membrane that surrounds the cells. It consists of two leaflets of lipids with their tails facing each other and the hydrophilic heads interacting with the outer environment. The lipid bilayer can also form liposomes apart from the cell membrane.
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If heavy exercise produces lots of co2 in the body, will the blood become more acid or more basic?.
If the lots Co2 produced in body it can make blood more acidic
What occurs when CO2 levels are too high?A increased CO2 level frequently results in minor symptoms like headache and weariness. More serious symptoms including breathing problems, respiratory failure, seizures, and coma can develop when the defense mechanisms in your body meant to maintain this balance stop functioning.
Excess of Co2 causes the Ph of your blood and bodily fluids to decrease, making them too acidic.
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Can you match them to the proper categories Please Help!!! Real answers only!!! 60 POINTS!!
Monomers are small organic molecules that compose polymers. The main atoms are C, H, and O, but other atoms are present too. Typical polymers are carbohydrates, lipids, proteins, and nucleic acids. You will find the complete table in the attached files.
What are monomers and polymers?
Polymers are large molecules composed of multiple similar units called monomers.
Monomers are organic molecules of reduced molecular mass. They are basically composed of carbon, oxygen, and hydrogen atoms, which establish covalent bonds. Other atoms can be involved as well.
When many monomers join through chemical bonds, they form a polymer. These subunits do not need to be identical.
In the exposed example, we have four polymeric molecules. Let us fill the empty spaces,
1)
Name: CarbohydrateAtoms: CHOMonomers: MocnosaccharideFood: PastaOther: Fast energy source2)
Name: LipidAtoms: CHOMonomers: Glyserol + Fatty acidFood: OilOther: Cell membrane, insulation, long term energy cource3)
Name: ProteinsAtoms: CHONMonomers: Amino acidsFood: SteakOther: Fasta Cell membrane, enzymes, antibodies4)
Name: Nucleic acidsAtoms: CHONPMonomers: NucleotidesFood: Strawberry cellsOther: Genetic material storageYou can learn more about monomers and polymers at
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In which part of the cell do ribosomes perform protein synthesis? (1 point)
lysosome
cytoplasm
vacuole
nucleus
According to the research, the correct option is nucleus. The part of the cell where ribosomes perform protein synthesis is in the nucleus.
What is the nucleus?It is a membranous structure that is located both in the plant cell and in the animal cell that houses most of the material belonging to genetics.
In this sense, it exerts control over the activities of cells and to preserve the integrity of genes, DNA molecules, proteins and ribosomes are organized in it, which will serve for protein synthesis.
Therefore, we can conclude that according to the research, the correct option is nucleus. The part of the cell where ribosomes perform protein synthesis is in the nucleus.
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Scientists have observed the exponential growth of lionfish in the caribbean sea. Which of these predictions about the future of the lionfish population is the most likely to occur?.
Scientists have observed the exponential growth of lionfish in the Caribbean sea. The prediction about the lionfish population that is most likely to occur will be B. a limiting factor will cause the growth of the lionfish population to slow down, forming a pattern of logistic growth.
According to logistic growth, the population of a species will increase exponentially when favorable conditions are provided. However, the increase in population cannot occur forever and there will be a time when the carrying capacity will be reached by the concerned population. Due to one or more limiting factors, the population growth will slow down to maintain a balance.
In the case observed, scientists have observed exponential growth in the lionfish population in the Caribbean sea. After this phase, factors such as reduction in the number of prey, increased toxicity, increased competition, etc will play as limiting factors to slow down the growth of the population of lionfish.
Although a part of your question is missing, you might be referring to this question:
Scientists have observed the exponential growth of lionfish in the Caribbean sea. Which of these predictions about the future of the lionfish population is the most likely to occur?
A. The lionfish population will continue growing exponentially indefinitely.
B. A limiting factor will cause the growth of the lionfish population to slow down, forming a pattern of logistic growth.
C. A limiting factor will cause the lionfish population to decline rapidly, and eventually decrease to near zero.
D. The lionfish population will enter a cycle of increasing and decreasing numbers, typical of many predators and prey.
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If the mitochondria and chloroplasts in eukaryotic cells resulted from endosymbiosis between various prokaryotes, what features should these organelles have?.
Answer:
An endosymbiont is one organism that lives inside of another one. All eukaryotic cells, like your own, are creatures that are made up of the parts of other creatures. Mitochondria and chloroplasts have their own unique DNA. Ribosomes in eukaryotes are similar to those in bacteria. Mitochondria are formed by binary fusion.
Explanation:
12. Explore bacteria slides. Compare the bacteria slides to the blood cells and
include details about their color, general shape, and size. Write this as a complete sentence or paragraph.
Find below the comparison between a bacterial and blood cell:
Bacteria are prokaryotic organisms. They are unicellular and found globally.
Cell of a bacterium:
Their complex cell envelope is made up of three closely connected layers: the plasma membrane, the cell wall, the glycocalyx (outermost).Because the nuclear envelope is missing in bacterial cells, the nuclear area is not well delineated. A nuclear membrane does not surround the genetic material in a nucleoid.Blood cell:
There are mainly three types of cells in the blood:White blood cells or leucocytes (WBCs)Red blood cells or erythrocytes (RBCs)Platelets or thrombocytesMammal RBCs have a biconcave form and no nucleus. Because hemoglobin is present, they seem red in color.Along with other organelles, WBCs include nuclei. They lack hemoglobin, which gives them a colorless appearance.Our blood contains platelets, which are tiny, colorless cell fragments that help to stop or slow bleeding.Hence, bacterial cells differ from blood cells in the above mentioned ways.
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while the theory of evolution does have detractors, i find it provides a very convincing explanation of how highly complex organisms such as humans could evolve from simple atoms (dawkins, 1989).
Darwin's theory of evolution by natural selection is satisfying because it shows us a way in which simplicity could change into complexity.
Darwin and Alfred Russel Wallace, one of his scientific contemporaries, proposed that natural selection, or evolution, is the result of this process. According to the principle of natural selection, organisms breed more young than they can withstand in their surroundings.Early eukaryotes had an abundance of mitochondria producing energy, allowing them to expand and amass larger and more complex genomes. Additionally, these larger genomes gave rise to the genetic building blocks needed for the evolution of ever-more sophisticated life. According to conventional wisdom, complex structures develop gradually from simpler ones through a process of evolution, with Darwinian selection preferring intermediate forms along the way.To learn more about evolution.
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A scientist discovers that there is a virus that turns pil
bugs purple when they become infected, the virus also
slowty kills them. She wonders if this vrus is spread
through ar or through contact. She sets up four smal
chambers for her experiment, each has its own isolated
or supply. Each has 5 purple pill bugs and 30 gray normal pl buns, all the
same age, size, and sex One chamber has a divider separating the purpl
pill bugs on the left and the normal pl bugs on the right. The dvder
allows air to flow from the left side to the right side, but pl bugs
cannot pass through the divider: The second chamber has a dider
separating the infected and noninfected plibugs, but this divider does no
let ar pass through it, each side of the chamber has its own ar supply.
A third chamber is set up with no dividen, the pill bugs can interact with
each other. In the Fourth chamber, she places only 50 noninfected pl
bugs with no divider. Each day over a month, she observes the pl bugs
and records how many turn purple and how many die.
what is the independent variable, dependent variable, constants, control group, and experimental group?
In the given experiment to investigate if the virus spreads through contact or air, four chambers containing both infected and non-infected bugs are set up as follows:
With divider that allows air flowWith divider that doesn't allow air flowNo divider; both kinds of bugs are allowed to come in contactOnly non-infected bugs presentHere,
Independent variable: Infection by the virus which turns them purple and slowly kills them. Dependent variable: life of bugs that depends on the independent variable, which here is the the viral infection.Constant: age, size and gender of bugs have been kept same in every chamber.Control group: group 2 and 4 act as a control group. That is because, healthy bugs are kept in an isolated environment where contamination is not possible either through air or through contact.Experimental group: the first three chambers where infected bugs are kept along with non-infected bugs are a part of the experimental group.In Group 1, if the healthy bugs get an infection, it would suggest that the infection spreads through air since the barrier separating them allows air passage from one side to the other. Group 2, can act as a control group for group 1 since the barrier does not allow air flow and both chambers have separate air flow. In Group 3, if healthy bugs get infected then it would suggest that the infection spreads through contact.Learn more about research methodology here:
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the effect of the relationship between post- cardiotomy neutrophil/lymphocyte ratio and platelet counts on early major adverse events after isolated coronary artery bypass grafting.
In this study, we aimed to investigate the role of postcardiotomy neutrophil, lymphocyte, and platelet counts in predicting major adverse events after coronary artery bypass grafting.
What is postcardiotomy?In terms of physiology, respiration is the transfer of oxygen from the external environment to the cells inside tissues and the removal of carbon dioxide in the opposite direction, that is, back into the external environment.
The biochemical meaning of respiration, in contrast to the physiological definition, refers to a metabolic process whereby an organism receives energy (in the form of ATP and NADPH) by oxidizing nutrients and releasing waste products. Even though cellular respiration and the subsequent maintenance of life in animals depend on physiologic respiration, the two processes are different: cellular respiration occurs within individual organism cells, whereas physiologic respiration deals with the diffusion and transport of metabolites between the organism and the external environment.
Lung gas exchanges are carried out by ventilation and perfusion.
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which takes place in interphase or mitosis in animal cells
Answer:
The Answer is C: ii and iii.
In interphase the DNA replicate which leads to the pairing of homologous chromosomes.
Rhe autonomic nervous system is subdivided into the ______ division which tends to arouse the body for action and the ______ division which tends to have a calming effect.
Answer: sympathetic; parasympathetic
Explanation:
A protein’s function is determined by the properties of its amino acids. Which replacement of one amino acid with another is least likely to affect the protein’s function?.
An amino acid with a carboxyl (C=O) group is replaced by an amino acid with an hydroxyl (O-H) group.
All amino acids have a core carbon backbone, an amino group, a carboxyl group, and a variable side chain that determines the amino acid type. In the case of alanine, the side chains may be methyl groups, whereas in the case of cysteine, they could be sulfhydryl groups.
The presence of a carboxyl or hydroxyl group on an amino acid's side chain improves its hydrophilicity. Thus, replacing an amino acid with a carboxyl (C=O) group with an amino acid with a hydroxyl (O-H) group would have the least effect on protein function since both groups contribute approximately equally to the polarity of such amino acids.
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The extinction of the trilobite marks the end of the Paleozoic Era. This is an example of what type of change?
The extinction of the trilobite marks the end of the Paleozoic Era. This is an example of environmental type of change.
How extinction of the trilobite happen?About 251 million years ago, the mass extinction event removed over 90% of all species on Earth including trilobite. This mass extinctions were caused by extreme changes in temperature, changing of sea levels, catastrophic event, huge volcano eruption or an asteroid hitting the planet Earth. We know about these events because of the changes that occur in the fossil record. We can say that environmental change is the main reason for the extinction of trilobite from the planet earth.
So we can conclude that the extinction of the trilobite marks the end of the Paleozoic Era. This is an example of environmental type of change.
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A(n)_____is a three-base sequence on the trna that binds to the three-base on the mrna.
A series of 3 consecutive bases in a tRNA molecule which mainly binds to a complementary codon series in mRNA is thought an anticodon. The unique nucleotide series of an mRNA specifies which amino acids are included into the protein fabricated from the gene from which the mRNA is transcribed, and the position of tRNA is to specify which series from the genetic code corresponds to which amino acid.
One cease of the tRNA suits the genetic code in a 3-nucleotide series referred to as the anticodon. The anticodon paperwork 3 base pairs with a codon in mRNA all through protein biosynthesis. All tRNAs have the series CCA at their 3´ terminus, and amino acids are covalently connected to the ribose of the terminal adenosine.
The mRNA template is then identified with the aid of using the anticodon loop, positioned at the opposite cease of the folded tRNA, which binds to the suitable codon with the aid of using complementary base pairing.
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Which organelle is involved in generating vesicles destined for the cell membrane?
Blood readily moves through vessels because it contains a high volume of water. which property of water describes this ability?
The property that describes the ability of blood to move readily through vessels because it contains a high volume of water is: low viscosity.
Blood is the fluid that facilitates the transport of various substances across the whole body. It is a red-colored fluid that receives its color due to a pigment called hemoglobin. The substances that blood can transport are: gases like oxygen and carbon dioxide, waste material, hormones, immune cells, etc.
Viscosity is the property of fluids that determines the resistive power of fluids. The more a liquid is viscous, the more it has the resistive power to move or change its shape. Water has very less viscosity and hence can easily move or change shape according to the vessel it is present in.
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manatees, aquatic mammals inhabiting florida’s rivers and coastal waters, swim close to the surface and are frequently killed in collisions with boats. to address the problem, boat traffic in manatee-populated waters is being required to maintain very low speeds. unfortunately, manatees are unable to hear low-pitched sounds and a boat’s sound lowers in pitch as the boat slows. therefore, this approach may in fact make things worse rather than better.
Fast-moving boat traffic can disturb or harm water hyacinth beds because the water hyacinth that manatees feed on develops best in water that is practically motionless.
In the scenario described in the question, it is said that manatees cannot hear the sluggish boats' low-pitched sounds, which could lead to more crashes and fatalities.
The response, if accurate, raises doubt about the findings since it makes sense for the boats to slow down even though the likelihood of hitting a manatee increases because the hyacinth that manatees eat grows best in calm water.
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You add a fluorescent antibody to a cell surface protein to a dish of cells. Looking at an individual cell under the microscope the entire surface of the cell is fluorescent. You then hit the cell with a brief pulse from a laser which bleaches out part of the fluorescence on the cell. Over time you notice that the entire surface of the cell becomes fluorescent again. What is the best explanation for this observation?.
Answer: Proteins from parts of the cell membrane that were not bleached with the laser diffuse into regions of the membrane that were bleached.
Explanation:
who were stephen j. gould and richard lewontin? who was ernst mayr? they were all important evolutionary biologists at harvard. i also want you to know who edward o. wilson is, as his work is one of gould and lewontin's targets. why are these scientists qualified to debate the merits of adaptationism?
Stephen Jay Gould was a well-known evolutionist and author who passed away in 2002. Richard Lewontin, a fellow Harvard Professor when Gould was alive, is renowned for his groundbreaking research into the genetics of variation within populations.
Stephen Jay Gould and Richard Lewontin:
Both individuals had strong opinions about the work of sociobiologists and evolutionary psychologists, two disciplines that take an adaptationist stance and use the theory of natural selection as the foundation for their inquiries into the potential adaptive worth of behavior.
The US Library of Congress designated Stephen Jay Gould as a Living Legend in recognition of his numerous literary accomplishments. As demonstrated by gel electrophoresis, a method that reveals just how much hereditary variation there is in the populations of living things,
Edward Osborne Wilson was an American scientist, naturalist, and author who lived from June 10, 1929, to December 26, 2021. Myrmecology, the study of ants, was his area of expertise. David Attenborough claimed that he was the foremost authority in his field. The "ant man" was his nick name.
Ernst Walter Mayr
One of the most eminent evolutionary biologists of the 20th century was. He was also a well-known taxonomist, explorer of the tropics, ornithologist, biologist, and historian of science.
His work played a role in the conceptual shift that resulted in the contemporary evolutionary synthesis of Mendelian genetics, systematics, and Darwinian evolution as well as the conceptualization of biological species.
One expression of their resistance to this approach came in an extremely influential paper published in the Proceedings of the Royal Society B (Gould and Lewontin 1979) on the supposed failures of adaptationism.
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This combines with the egg cell's half of genetic material to the egg cell.
This combines with the egg cell's half of genetic material to Fertilise the egg cell (this process is known as fertilization).
What is the fertilization process?The fertilization process is the phenomenon in sexual reproduction occurred in nature by which two germinal meiotic cells combine to form a zygote that will develop to reach an adult organism. This process (fertilization) involves the generation of genetic variability.
In conclusion, this combines with the egg cell's half of genetic material to Fertilise the egg cell (this process is known as fertilization).
Complete question:
Fill the blank. This combines with the egg cell's half of genetic material to _____ the egg cell.
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Define conservation stewardship program 
Answer:
From my research the Conservation Security Program (CSP) was a voluntary conservation program in the United States that supported stewardship of private agricultural lands by providing payments and technical assistance for maintaining and enhancing natural resources
Explanation:
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A person takes a dose of antibiotics each day for 5 days. Which graph below 1 point
shows the population of harmful bacteria after a person completes a
successful course of antibiotics, where a person has no more harmful
bacteria in them?
Graph A
Bacteria
Graph B
Answer:
The third graph which is option B, because it is depicting the bacteria slowly decreasing over a 5 day period because the effects of antibiotics generally takes time to be processed.
Explanation:
Hope it helps! =D
Graph B shows the population of harmful bacteria after a person completes a successful course of antibiotics, where a person has no more harmful bacteria in them.
What are Antibiotics?Antibiotics are a type of medication used to treat bacterial infections. They work by killing or inhibiting the growth of bacteria, helping the body's natural immune system to fight off the infection.
Antibiotics can be administered orally, topically, or intravenously depending on the type of infection and the severity of the illness.
It is important to use antibiotics only when necessary and as prescribed by a healthcare professional, as misuse and overuse of antibiotics can lead to antibiotic resistance, which is a growing global health concern.
The graph shows a sharp decrease in the population of bacteria over time until it reaches zero, indicating successful treatment. Graph A shows the population of bacteria decreasing initially but then increasing again, indicating unsuccessful treatment.
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what are four parts common to all cells
Answer :All cells share four common components: 1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; 2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; 3) DNA, the genetic material of the cell; and 4)
Explanation:
Need help quick, bio hw.
The classification of the substances are;
Reactants of hydrolysis;
Polypeptides
Triglycerides
Polysaccharides
DNA and RNA
Products of hydrolysis;
Fatty acids
Monosaccharides
Nucleotides
Amino acids
Glycerol
What is hydrolysis?The term hydrolysis has to do with a kind of reaction in which a macromolecule is broken down into smaller parts. The hydrolysis of a macromolecule often yields the monomers that were combined to form it.
There are a lot of macromolecules that exists in the biological system. The monomers that compose them could be obtained by hydrolysis.
Recall that the compounds that do combine with other compounds to yield macromolecule are what we have called the reactants in this particular sense. The products are the compounds that were formed by the combination.
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A physician is to see a patient with rheumatoid arthritis. Which area of the body does the physician expect to show the most signs and symptoms of the disease?.
A physician is to see a patient with rheumatoid arthritis. The area of the body that the physician expects to show the most signs and symptoms of the disease are the hands and fingers.
Rheumatoid arthritis is a disease that is characterized by severe swelling, pain, and stiffness in the joints of the body of an individual. This autoimmune disease tends to affect the smaller joints, particularly those of the hands in a much larger ratio.
The metacarpophalangeal (MCP) joints and the proximal interphalangeal (PIP) joints are found in the hand which are mostly affected by rheumatoid arthritis.
A patient who has joints of the hand affected by rheumatoid arthritis has difficulty in bending his hands and fingers, and the movement of the hand as well as the ability to form fists is also badly affected.
Although a part of your question is missing, you might be referring to this question:
A physician is to see a patient with rheumatoid arthritis. Which area of the body does the physician expect to show the most signs and symptoms of the disease?
Eyes and mouth
Lungs
Hands and fingers
Skin
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Construct an Explanation How does the struc ture of an amino acid relate to its function in cellular processes ? Use the role of amino acids in the structure of proteins as supportive evidence .
Answer: amino acids chains together to form specific protein.
Explanation: the unique amino acid sequence of a protein is shown in its unique folded structure.the structure in turn, determines the protein function. this is why mutation that alter amino acid sequence can affect the function of a protein.
1. What is the union of the sperm and egg called?
2.In which female reproductive organ does this union occur?
3.What is it called if the union stays in the wrong female reproductive organ and does not proceed to the uterus?
4.Can this pregnancy continue?
What is another name for the female egg?
Explanation:
1.)Fertilization:-it is also the fusion/union of a male sperm and a female egg
2.)fallopian tube:-insermination also occurs here
3.)Azoospermia:-
4.)No
another name for a female egg is the ova
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an eco system is ____ if it can continue to function over a long periods of time
Answer: Sustainable
Explanation: Sustainable eco systems are eco systems that are able to give themselves everything that they need to continue.
The process of converting
into
that requires oxygen.
Which of the following environments is being referred to when explaining hypertonic, hypotonic, or isotonic solutions?
A: Inside the cell or organism
B: Outside the cell or organism
C: Other: Must Explain:
Answer:
I believe it is A. inside the cell or organism
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