Answers
The membrane is composed of phospholipids that will form a lipid bilayer through which products pass through it.
How is the plasma membrane composed?The plasma membrane is made up, among other components, of phospholipids that will generate a phospholipid bilayer due to its amphipathic nature. Due to its conformation, different molecules will not find it easy to pass through the plasmatic membrane into and out of the cell, for this reason, the cell will have types of transport to be able to allow the passage of substances.
Within these forms of transport, we find endocytosis, which is when the cell enters bulky materials inside the cell, exocytosis, which is when it takes bulky materials out of the cell, is the facilitated diffusion by which molecules pass without spending energy thanks to its concentration gradient and active transport in which the channels need ATP to be able to pass the molecules through it since it is done against its concentration gradient.
Therefore, we can confirm that the membrane is composed of phospholipids that will form a lipid bilayer through which products pass through it.
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Related Questions
Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Why would neighboring healthy cells also die?.
Answers
Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Neighboring healthy cells will also die because d. the death molecule passes through gap junctions.
Gap junctions are the intracellular connections that make it possible for neighboring cells to communicate with each other. The cytoplasms of the neighboring cells are able to exchange ions, molecules, impulses, etc through these gap junctions. Hence, these gap junctions are extremely important for the transfer of material between neighborly cells.
However, if healthy cells form gap junctions with diseased cells that form death molecules to kill themselves, then the death molecules can pass through the gap junctions to the healthy cells as well. As a result, the neighboring healthy cells will also die.
Although a part of your question is missing, you might be referring to this question:
Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Why would neighboring healthy cells also die?
a.The death molecule is passed through desmosomes.
b.The death molecule is passed through plasmodesmata.
c.The death molecule disrupts the extracellular matrix.
d.The death molecule passes through gap junctions.
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How are the chemical senses different from the non-chemical senses?
O You must experience chemical stimulus in order for your senses to work.
O You must be careful that you don't burn your neurons with the ingested chemicals.
O Chemical senses are less strong than the non-chemical senses.
O They require chemical receptors in addition to neurons for sending messages to your brain.
Answers
In order to communicate with your brain, they need chemical receptors in addition to neurons.
THE CHEMICAL SENSES Because both taste (gustation) and smell (olfaction) include sensory receptors that react to molecules in the food we consume or the air we breathe, they are referred to be chemical senses.
Taste, also known as gustation (for dissolved chemicals that reveal the palatability of food), and smell, sometimes known as olfaction, are the two most common categories of the external chemical senses (for airborne chemicals that inform about events at a distance). Humans' sense of taste is restricted to the mouth, particularly the tongue.
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which organism does not perfom photosynthesis
Answers
Answer:
Animal cells and fungal cells do not have chloroplasts and, therefore, cannot photosynthesize. That is why these organisms, as well as the non-photosynthetic protists, rely on other organisms to obtain their energy. These organisms are heterotrophs.
Explanation:
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What fraction of the offspring from a cross between two animals with the genotype aabbcc are expected to be homozygous recessive for the three traits?.
Answers
1/64 fraction of the offspring from a cross between two animals with the genotype aabbcc are expected to be homozygous recessive for the three traits.
What is a homozygous example?When two identical copies of a gene are present, you are said to be homozygous for that gene. In contrast, a genotype with heterozygosity has different alleles. Everyone who possesses a recessive trait, such as red hair or blue eyes, is homozygous for the that gene.
What does homozygous female mean?X chromosomes and the autosomes each contain two copies of each gene, and in homozygous people (homozygotes), both copies of the allele are the same.
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What evidence can be found at the peaks of the Himalayas that show the vast changes the earth has undergone?
Answers
Fossils found in the sandstone layers is the evidence which can be found at the peaks of the Himalayas that show the vast changes the earth has undergone.
What is Fossil?This referred to as the remains of plants and animals which have been preserved in the earth crust. This give more information about the plants and animals which were present during that period on earth.
Fossils are made up of bones, cartilage etc due it not being totally decomposed by organisms which is why it is used while flesh will be totally decomposed.
The fossilized structures are studied and the parts available are noted with different forms of comparison being done. Fossil in the sandstone layers of the Himalayas peak is the area where the various vast changes in the earth was proven.
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What determines the type of ecosystem or biome that forms?
Answers
Answer:
Minerals
Explanation:
Answer:
I believe the answer is flora
Explanation:
The definition of flora is the plants of a particular region, habitat, or geological period.
An elderly patient might understate or minimize the symptoms of his or her illness because:_________
Answers
An elderly patient might understate or minimize the symptoms of his or her illness because of decreased perception of pain.
How do perceptions work?In order to represent and comprehend the information or environment being given, perception involves the organization, identification, and interpretation of sensory data. All perception is based on neurological signals that are sent when the sensory system is chemically or physically activated.
Which 4 categories of perception are there?The several senses are frequently used to divide up the various sorts of perception. This encompasses all forms of perception, such as those involving sight, smell, touch, sound, and taste. We usually employ all of these at once to perceive our surroundings.
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How would the color mutation affect a wallaby that was living in the wild versus one that was living in a zoo?
Answers
Answer:
All the types of well known and famous Albino animals mostly look very adorable and too cute. But there is this lack of melanin which is in their bodies and this relatively causes a huge amount of hardships for these pigment-challenged creatures. This is the only drawback which we can spot in them and other than that they are adorable.
Explanation:
According to locke, punishing someone for behaviors he/she has no recollection of doing is equivalent to punishing him/her for actions that were never performed? do you agree with him? why or why not? defend your answer.
Answers
Yes, a person that has no recollection of performing any unconscious act does not deserve to be punished.
It is no less unjust, if Locke is correct, to hold someone responsible for actions about which he has a distorted memory. That is, if his memory of behaviour consists of his admirable intent and the righteousness of act, then to punish him for such act is itself unjust. His biased memory makes it impossible to punish him without also acting unjustly; for he finds your punishment incongruent with his laudable behaviour.
The punishment does not match his skewed memory because the circumstance of unconsciousness could not be deliberately affected.
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Jennifer is writing an algorithm to analyze a play that she is reading. What type of algorithm would be appropriate for this application? (1 p
O greedy algorithm
O graphing algorithm
O machine learning algorithm
O linear programming algorithm
Answers
O linear programming algorithm is the type of algorithm would be appropriate for this application
What three varieties of linear programming are there?The following are the several forms of linear programming: the Simplex technique for solving linear programmes.
Linear programming is a branch of mathematics that is heavily utilised in combinatorial optimization (LP). The LP problem is an optimization problem with a linear objective function and all associated constraints, thus the name.
Different approaches can be used to tackle a linear programming problem. Examples include the graphic technique, the simplex approach, the ellipsoid method, and interior point methods.
Identifying the quantities you need to know to solve the problem is the first step in constructing a linear programming challenge.
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Based on the information provided, a graphing algorithm would be most appropriate for analyzing a play.
Graphing algorithms are commonly used for analyzing relationships and connections between entities. In the context of analyzing a play, the algorithm could represent characters, scenes, or events as nodes in a graph and establish connections between them.
This would allow Jennifer to analyze the interactions, dependencies, and patterns within the play.
Greedy algorithms, machine learning algorithms, and linear programming algorithms are not specifically tailored for analyzing literary works like plays.
While they may have applications in other domains, they are not the most suitable choice for analyzing the structure and content of a play.
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Which of the following is not part of the cell theory? (4 points) a Every living thing is composed of cells. b Cells come from pre-existing cells. c Cells are the basic unit and structure of all living things. d Every cell has a nucleus that contains genetic material.
Answers
Answer:
I think the correct answer is D.
One loop of a trna molecule includes the ______, which is complementary to an mrna codon, and the other end of the trna molecule carries an ______ corresponding to that mrna codon.
Answers
One loop of a tRNA molecule includes the anticodon, which is complementary to an mRNA codon, and the other end of the tRNA molecule carries an amino acid corresponding to that mRNA codon.
What are tRNA and mRNA?The transference RNA or tRNA is a molecule that serves to connect the amino acid code on the mRNA sequence in the ribosome to synthesize a polypeptide chain, while the messenger (mRNA) is the nucleotide sequence used to create a protein.
In conclusion, one loop of a tRNA molecule includes the anticodon, which is complementary to an mRNA codon, and the other end of the tRNA molecule carries an amino acid corresponding to that mRNA codon.
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Identify the macromolecule based on the structure.
Answers
Answer:
It's a carbohydrate more specifically It's a ribose C5H10O5
When moving from left to right across a period, ionization energy is increasing. By which other trend is this caused?
Answers
The ionization increases when it moves from left side to the right side of the periodic table.
When moving from left to right across a period, ionization energy is increasing. By which other trend is this caused?
If we see in the periodic table then we can easily see that, the first ionization gradually increases if we move left to right in the periodic table. The whole process occur due to the increase in nuclear charge, due to the result of which the valence electron more strongly bound to the nucleus. Generally the atomic radius decreases when it moves across the period, so due to which a greater attraction between the negatively charged electrons and positively-charged nucleus occurs.
So we can conclude that the ionization increases when it moves from left side to the right side of the periodic table.
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The ionization energy increases when it moves from left side to the right side of the periodic table.
Which other trend is this caused when moving from left to right?If we see in the periodic table then we can easily see that, the first ionization energy gradually increases if we move left to right in the periodic table. The process occur due to the increase in nuclear charge, due to the result of which the valence electron are strongly bound to the nucleus. We know that the atomic radius decreases when it moves from left to right across the period so due to which a greater attraction between the negatively charged electrons and positively charged nucleus occurs which present proton.
So we can conclude that the ionization energy increases when it moves from left side to the right side of the periodic table.
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Which of the following is not true about needles
Answers
Answer: they resist freezing
Explanation:
Cellular respiration is an exothermic reaction and photosynthesis is an endothermic reaction. How does the required activation energy compare for these two reactions?
A:Photosynthesis needs a higher amount of energy to activate the reaction because the products are at a lower energy state than the reactants.
B:Cellular respiration needs a higher amount of energy to activate the reaction because the products are at a lower energy state than the reactants.
C:Photosynthesis needs a smaller amount of energy to activate the reaction because the products are at a lower energy state than the reactants.
D:Cellular respiration needs a smaller amount of energy to activate the reaction because the products are at a lower energy state than the reactants.
Answers
Answer:He uses Framton's fearfulness, which is inappropriate because the hunters are not ghosts. He uses Mr. Sappleton's curiosity about Framton's sudden departure to highlight Framton's rudeness.
Explanation:
Facilitated diffusion requires energy and can transport molecules against a concentration gradient. True or false?.
Answers
NEED HELP ASAP! WORTH 50!!!
Answers
Answer:
Genotype of Parent 1: Aa
Genotype of Parent 2: aa
Probability of offspring having freckles: 50%
Explanation:
The genotypes of the parents are actually given in the Punnett Square. And, since out of 4 options 2 are all freckles, probability is 50%.
An investigation was done to see if the diameter of rubber tubbing affects the time to siphon water out of a container what would the manipulated variable be
Answers
Answer: The factor of safety in a plumbing system and determination of the upper limit of service for a 3-inch soil stack. 146. Establishment of a factor of safety.
Explanation:
The manipulated variable in the investigation is the diameter of the rubber tubing to determine its impact on siphoning time.
In the investigation exploring the impact of rubber tubing diameter on the time required to siphon water from a container, the manipulated variable is the diameter of the tubing. This variable is intentionally altered by the researcher to assess its influence on the siphoning process. By testing various tubing diameters, the researchers aim to observe any patterns or trends regarding the time it takes for water to be siphoned out.
This investigation seeks to determine if there is a correlation between tubing diameter and siphoning time. Controlling other factors, such as the volume of water, height difference, and tubing length, allows for a focused examination of the specific impact of tubing diameter on the efficiency of the siphoning process.
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The complete question is:
An investigation was done to see if the diameter of rubber tubing affects the time to siphon water out of a container. What would the manipulated variable be?
The elimination of rinderpest impacted the wildebeest population. What type of
factor is rinderpest?
density-dependent
density-independent
dependent
independent
Answers
Correct option a) density-dependent
Rinderpest is an RNA virus of farm animals this is intently associated with the human measles virus. The virus fast unfold at some stage in the continent of Africa. Wildebeest population sizes are stricken by a number of factors, together with ailment, useful resource availability, and human impacts.
Within an insignificant eight years it killed an predicted 90% of the wild wildebeest and buffalo in east Africa. Rinderpest is a viral ailment that infects farm animals, wildebeest, and different hoofed animals. The ailment had affected farm animals and natural world withinside the Serengeti area for decades.
Death fees have been extraordinarily high, specially amongst wildebeest calves.the wildebeest populace in Serengeti National Park, Tanzania, commenced growing at a charge a lot quicker than before. Scientists decided that this boom became because of numerous factors, together with the eradication of a ailment known as rinderpest.
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What is an important difference between mitosis and meiosis that explains
why sexually-reproducing organisms use meiosis to generate cells for
reproduction?
All that apply
1. The process of meiosis includes crossing over and independent assortment, which increases genetic diversity.
2. Meiosis generats haploid (n) Cells
3. Meiosis generates geneticslly unique cells.
4. Meiosis generates dipload (2n) cells
5. Meiosis generates geneticslly identical cells
Answers
The most important differences between mitosis and meiosis includes crossing over and independent assortment, genetically unique cells (Options 1 and 3)
What is meiosis?Meiosis is a special type of cell division characterized to increase genetic variation due to the emergence of recombination and independent separation of homologous chromosomes during this process.
In conclusion, the most important differences between mitosis and meiosis that explains why sexually-reproducing organisms use meiosis to generate cells for reproduction include the process of meiosis includes crossing over and independent assortment, which increases genetic diversity and meiosis generates genetically unique cells (Options 1 and 3)
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The bacterium in the diagram has been magnified so that it appears to be 2.0 cm in length. If its actual length is 2.0 µm, how many times has it been magnified?
Answers
The bacteria shown in the figure has been magnified ten thousand times, as indicated by the value of the magnification factor.
What is the magnification of an object?When examined using a magnifying device such as a microscope, the size of an item seems to have expanded by a certain degree or quantity. This phenomenon is referred to as the magnification of the thing in question.
Magnification = size of the image/size of the actual object
Therefore
[tex]1 µm = \frac{1}{00 000}--- > 1 µm = \frac{1}{10 000 }cm[/tex]
Therefore
2.0 µm = 2.0 * 1/10 000 cm
= 2.0 * 10^{-4} cm
Hence, Magnification
M= 2.0 cm /2.0 * {-4} cm
M = 10000 X
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Explain why significant figures represent the precision of a measurement and not its accuracy.
Answers
Precision, on the other hand, refers to the variance you observe when you evaluate the same part again with the same tool. Accuracy, on the other hand, refers to the difference between both the measure and the part's real value.
Because there is less room for error in the approximated digit, measurements with more significant figures have higher repeatability or precision. A value with more significant figures is just more exact than a calculated values with fewer significant figures; it is not automatically more accurate. A value of 1.2 m, for instance, was measured using a less accurate measurement instrument, while a value of 1.5422 m was measured using a more exact measuring tool. The measurement made using the less accurate measurement instrument would be more precise if the measured object actually measured 1.19 m.
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What is a key difference in gene expression between eukaryotic and prokaryotic cells?
Answers
Answer:The main difference between prokaryotic and eukaryotic gene expression is that the entire prokaryotic gene expression occurs in the cytoplasm whereas a part of the eukaryotic gene expression occurs inside the nucleus while rest occurs in the cytoplasm.
Explanation:Prokaryotic gene expression (both transcription and translation) occurs within the cytoplasm of a cell due to the lack of a defined nucleus; thus, the DNA is freely located within the cytoplasm. Eukaryotic gene expression occurs in both the nucleus (transcription) and cytoplasm (translation)
1.2.2 Quiz: Themes in Biology
Question 2 of 10
What is the name of a group of connected and related organisms?
A. Flow
B. Matter
C. Energy
D. System
Answers
Answer:
D
Explanation:
Kohlberg used the Heinz scenario to create his stages of Moral Development.
True or false
Answers
Answer:
True
Explanation:
The movement of materials across the cell membrane from an area of higher concentration to an area of lower concentration
is called
Answers
Answer:
diffusion
Explanation:
I NEED HELP
Water has a low viscosity (thickness). How might the movement of the dyes
change if a fluid with a higher viscosity is used? 1
Answers
The movement of the dyes would change in the negative if a fluid with higher viscosity is used. i.e lower movement of the dye through the medium
This is further explained below.
What kind of effects does viscosity have on the flow of fluid?Generally, One way to think about viscosity is as a measurement of the resistance that a fluid has to flow through it.
When compared to a fluid with lower viscosity, a liquid with a surface tension has a lower flow rate but a higher resistance, which is akin to having more friction.
This resistance may be thought of as the equivalent of having greater friction. To provide an example using language that is more accessible to people, we may state that the viscosity of a fluid is lower when it moves through its environment in a more orderly fashion.
In conclusion, If a fluid with a greater viscosity were utilized, the mobility of the dyes would be altered in an unfavorable manner. meaning that there is less mobility of the pigment throughout the medium
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Justin is listening to the radio when he hears the sound of sirens, which he mistakes for the police turning on their sirens behind him. He immediately presses on the brakes, has an accelerated heartbeat and higher blood pressure, as well as sweaty palms. His reaction is known as?.
Answers
Justin's reaction is a stress response. It is due to presence of fight-or-flight hormone. Adrenaline triggers fight-or-flight response. It is released by the adrenal glands.
What is Stress Response?
Stress hormone is epinephrine or adrenaline. It is secreted by the action of sympathetic nervous system which is a part of Autonomic Nervous System. Adrenaline controls tachycardia, blood glucose, and muscle tension.
This hormone helps an individual to prepare for the situation of danger or stress. Adrenaline hormone released from the adrenal glands which are present on the top of each kidney.
Justin is experiencing accelerated heartbeat, high blood pressure and sweaty palms due to secretion of epinephrine hormone.
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a cell nucleus has an average length of 6 micrometers. Calculate the order of magnitude comparison between the nucleus of a cell and:
a) a small animal cell b) a large plant cell
URGENT!!!!
Answers
Answer:
A small animal cell is about 10 micrometers so:
10/6 = 1.7
The length of small animal cell is same order of magnitude as cell nucleus.
A large plant cell is about 100 micrometers so:
100/6 = 16.7
The length of large plant cell is an order of magnitude (10^1, or ten times) bigger than cell nucleus.
A small animal cell is about 10 micrometers so: 10/6 = 1.7
What is plant and animal cell?Plant cell contains cell wall. Animal cell do not have cell wall. The length of small animal cell is same order of magnitude as cell nucleus.
A large plant cell is about 100 micrometers so: 100/6 = 16.7. The plant cell is 10 times than nucleus of the cell.
Nucleus of the plant or animal cell is much smaller than the cell itself. The size of the cell is much more than size of nucleus.
Therefore, A small animal cell is about 10 micrometers so: 10/6 = 1.7
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