Facilitated diffusion via channels and carrier proteins The majority of solutes that diffuse across the plasma membrane cannot move directly through the lipid bilayer. The passive movement of such solutes (down their concentration gradients without the input of cellular energy) requires the presence of specific transport proteins, either channels or carrier proteins. Diffusion through a transport protein in the plasma membrane is called facilitated diffusion. outside cell Facilitated diffusion across the plasma membrane channel protein carrier protein inside cell Adapted from Biology by Campbell and Reece © 2008 Pearson Education, Inc. Sort the phrases into the appropriate bins depending on whether they are true only for channels, true only for carrier proteins, or true for both channels and carriers. transport solutes down a concentration or electrochemical gradient undergo a change in shape to transport solutes across the membrane provide a hydrophilic path across the membrane provide a continuous path across the membrane allow water molecules and small ions to flow quickly across the membrane transport primarily small polar organic molecules are integral membrane proteins only channels only carriers both channels and carriers
Answers
The concept of facilated diffusion is highlighted in general. It occur down the concentration gradient without energy expenditure.
Diffusion that is assisted (facilitated) by a membrane transport channel is referred to as facilitated diffusion. These pathways, which are composed of glycoproteins (proteins with linked carbohydrates), allow substances to flow across the membrane. These channels are nearly typically unique to either a specific molecule or a certain class of molecule (such as an ion channel), and as a result, they are closely associated with specific physiological processes. For instance, GLUT4 is a crucial transporter channel in the treatment of diabetes. A glucose transporter called GLUT4 is present in skeletal muscle and fat. In order for these cells to absorb glucose from the blood, insulin causes GLUT4 to bind to their membranes and insert.
Since this is a passive system, the amount of sugar that enters our cells is inversely proportional to the amount we ingest, up until the point where all of our channels are being utilised (saturation). Cells with type II diabetes mellitus don't insert GLUT4 into their membranes because they don't respond to insulin as well. As a result, blood glucose levels may increase, increasing the risk of renal failure, heart disease, and stroke.
Hence, facilated diffusion is specialized passive transport.
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Related Questions
Which three organization levels are in a human stomach?
Muti choice
1) cell
2)organ
3)organ system
4)organism
5)tissue
Answers
Answer:
Cell Organ System Organ
Explanation:
cells make up everything as a building block of life.
Answer:
Cell, tissue, and organ.
Explanation:
A cell is an obvious one because it makes up the tissue, and it is needed in order to form an organ. Meaning tissue and cell would have to be included. Tissues witch are made of many cells form an organ, and an organ would be the human stomach/digestive system. It can't be organ system because a stomach can't be a whole system including the heart and ect. It can't be organism because a stomach isn't enough organ systems to create an organism.
several litters of new pups were recently born in the otter habitat at the local zoo. write a program that calculates the percentage of male and female otters currently in the habitat. the program should ask the user for the number of males and the number of females using two separate input statements. when the program asks for the number of males, it should display the following string as a prompt: 'enter number of males:' when the program asks for the number of females, it should display the following string as a prompt: 'enter number of females:' the program should display the percentage of males and females (round to the nearest whole number) in the following format: percent males: 35% percent females: 65% use string formatting in your output. the following sample run shows an example of the program's output. the user's input is shown in bold stackrun
Answers
Here's an implementation of the program that calculates the percentage of male and female otters currently in the habitat in Python:
The Programmales = int(input("Enter number of males: "))
females = int(input("Enter number of females: "))
total = males + females
percent_males = (males / total) * 100
percent_females = (females / total) * 100
print("Percent males: {:.0f}%".format(percent_males))
print("Percent females: {:.0f}%".format(percent_females))
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Use the following scenario to answer questions 67-70
Kayla is a nutritionist and is interested in how diet affects growth in children. Using rats as a
model organism, Kayla set up the following experiment to examine the effects of diet on the
growth of baby rats. She chose rats because, like humans, they nurse their young, and share
many of the same genes. She designed an experiment that measured the effect of a sugar water
diet compared to a diet of breast milk on rat growth. She divided a litter of 6 rats into two groups
of three. Group A was fed a diet of sugar water, and Group B was fed breast milk. Each rat was
fed 5 mL of "food" each day. Kayla determined the mass of each rat once a week for 4 weeks.
67. What is the independent variable in this experiment?
68. What is the dependent variable in this experiment?
69. What is the control group in this experiment?
70. What variable(s) were constant in the different groups?
Answers
The independent variable in this experiment is the number of rats.
The dependent variable is the mass of each rat.
The control group in this experiment is the mass of each rat.
Nutritionists commonly work with individuals or populations to teach them more approximately general nutrients, food, and health. Their recognition is of meal behavior. This consists of working with people to plot and put in force meal plans that improve the person's or circle of relatives' nutrition.
In place of dietitians, who're qualified to diagnose eating disorders and lay out diets to treat particular medical conditions, nutritionists address standard dietary pursuits and behaviors. Nutritionists are regularly employed in faculties, hospitals, cafeterias, lengthy-term care centers, and athletic businesses
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Which of these particles is an atom of an element?
Answers
Whats the difference between comets,asteroid’s, and meteors
Answers
Answer:
Comets are small icy dirtballs that orbit the Sun; comets are made of ice and dust while asteroids are made of rock). A meteor is a space rock—or meteoroid—that enters Earth's atmosphere, as it – burns up upon entering Earth's atmosphere, it creating a streak of light in the sky (often called "shooting stars").
Explanation:
Answer:
A comet is a ball of ice and dust that orbits the sun
A asteroid is a small rocky object
A meteor is a small piece of a asteroid or comet......
Explanation:
To remember think of it this way Comets are big , Asteroids are small
Meteors are pieces of them both
does compression stress on rocks happen fast or slow
Answers
Answer:
Stress forces push, pull, or twist the rocks in Earth’s surface.
Explanation:
Drag the tiles to the correct boxes to complete the pairs.
Match each form of energy to its description.
gravitational potential
Answers
Motion energy refers to the energy related to an object's movement. When an object is in motion, it possesses kinetic energy, which is a form of motion energy.
How to explain the energyThe matching will be:
motion energy = energy related to an object's movement
chemical energy = stored energy related to positions of atoms within molecules
thermal energy = energy of motion of particles in a substance
nuclear energy = energy released when a nucleus splits or combines
gravitational potential energy = energy related to height
sound energy = energy generated by vibration of a string
Chemical energy is stored energy that is related to the positions of atoms within molecules. It is the energy that can be released or absorbed during a chemical reaction. When chemical bonds are formed or broken, energy is either released (exothermic reaction) or absorbed (endothermic reaction) in the process.
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When is lactic acid produced
Answers
hope this helps :)
(if you wouldn’t mind can you mark me brainliest?)
What develops inside the cones of gymnosperms?
Answers
Answer:
Gymnosperms, or seed plants, develop seeds inside their reproductive structures, which are called cones. Each cone usually consists of overlapping scales, with small ovules that contain the plant's female gametes and eventually become seeds. Male gametes are produced in the form of pollen.Describe what is going wrong in the body of a person with this condition that is preventing the right molecules from getting to the body’s cells. (asthma)
Answers
Answer:
Asthma is a chronic, inflammatory disease of the airways with permanent hypersensitivity. In those with a corresponding disposition (with an overly sensitive bronchial system), the inflammation leads to attacks of breathlessness as a result of acute narrowing of the airways - a so-called bronchial obstruction. This narrowing of the airways is caused by increased secretion of mucus, spasms of the bronchial muscles and the formation of edema of the bronchial mucous membrane; it is reversible through treatment. About 1 of every 10 individuals has or had asthma at least once.
Draw the structures of deoxyribose, guanine, and phosphate and rate their relative solubilities in water (most soluble to least soluble). How are these solubilities consistent with the three-dimensional structure of double-stranded DNA?
Answers
Answer:
The solubilities in water of the three molecules from most to least soluble is in the following order: phosphate > deoxyribose > guanine.
Explanation:
The phosphate group is the most water-soluble due to it being very much negatively charged .
The deoxyribose which has several hydroxyl groups, is the next most water-soluble molecule.
The guanine molecule is hydrophobic, therefore, it is the least soluble in water.
A DNA molecule is composed of the three molecules: deoxyribose sugar, a phosphate group and a nitrogenous base which could either be a purine or a pyrimidine.
The three dimensional structure of DNA is such that the the phosphate groups and deodyribose sugars form the backbone of the structure on the outside of the DNA double helix where they are exposed to the aqueous environment of the nucleus. On the other hand, the hydrophobic nitrogeneous bases are located in the interior of the double helix where they are excluded from excludedthe aqueous environment of the nuclues. This structural arrangement is in accordance with the solubility of the molecules where the water-soluble phosphates and sugars are exposed to water while the water-insoluble bases are away from water.
A client is experiencing numbness and tingling in their fingers and lips while donating blood.
plasma. You suspect that the client is experiencing mild
them drink some
to replenish their
more severe symptoms like laryngeal spasms, tetany, and convulsions.
You work quickly to have
levels before they start experiencing
Answers
A client is experiencing numbness and tingling in their fingers and lips while donating plasma. You suspect that the client is experiencing mild hypocalcemia, which is a condition that occurs when the blood calcium level is too low.
How to explain the informationHypocalcemia can cause a variety of symptoms, including numbness, tingling, muscle cramps, spasms, and seizures.
You first ask the client if they have any known medical conditions that could be causing their symptoms. You also ask them if they have taken any medications recently that could be affecting their calcium levels. If the client does not have any known medical conditions or medications that could be causing their symptoms, you suspect that their symptoms are caused by the blood donation.
Hypocalcemia can occur during blood donation if the donor loses too much blood too quickly. Blood contains calcium, and when the blood volume decreases, the calcium level in the blood can also decrease. This is why it is important to drink plenty of fluids before and after donating blood. Fluids help to replace the lost blood volume and prevent hypocalcemia.
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In fruit flies, curved wings are recessive to straight wings, and ebony body is recessive to gray body. A cross was made between flies (all true-breeding) with curved wings and gray bodies to flies with straight wings and ebony bodies. The F1 offspring were then testcrossed to produce an F2 generation. The following data were obtained: F2 generation: -104 curved wings, ebony body -106 curved wings, gray body -98 straight wings, gray body -92 straight wings, ebony body With a null hypothesis based on independent assortment, what are the expected values for each class of flies (400 total flies)
Answers
To know if two genes are linked or assort independently, a testcross can be performed. If the progeny distribution differes from the expected ratio, they are linked. Extected numbers: -100 curved wings, ebony body -100 curved wings, gray body -100 straight wings, gray body -100 straight wings, ebony body.
How are independent and linked genes transmitted?
Independent assortment law establishes that the alleles from two or more different genes distribute independently from each other in gametes.
Each gamete receives an allele from a gene that does not depend on nor influence another gene's allele in the same gamete. This event only occurs in independent genes. These genes segregate independently after crossing over because they are far away from each other.
Some other genes, however, are too close to each other, and they do not segregate independently. These are the linked genes. They do not exhibit an independent distribution, and they are inherited together more frequently.
To know if two genes are linked, we must observe the progeny distribution.
If heterozygous individuals, whos genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, that is that phenotypes appear in different proportions, we can assume that genes are linked in the double heterozygote parent.In the exposed example,
curved wings (s) are recessive to straight wings (S), ebony body (g) is recessive to gray body (G).1st Cross: flies with curved wings and gray bodies to flies with straight wings and ebony bodies.
Parentals) ss GG x SS gg
F1) 100% Ss Gg
2nd cross: F1 individuals testcrossed
Parentals) Ss Gg x ss gg
F2)
104 curved wings, ebony body ⇒ ss gg106 curved wings, gray body ⇒ ss G-98 straight wings, gray body ⇒ S- G-92 straight wings, ebony body ⇒ S- ggTotal number of individuals: 400
Hypothesis: Both genes assort independently from each other.
We need to give the expected values. As said before, the expected ratio is 1:1:1:1 ⇒ 4/16 Ss Gg : 4/16 Ss gg : 4/16 ss Gg : 4/16 ss gg
16 possible genotypes --------------- 400 individuals
4 Ss Gg ----------------------------------- X = 100 individuals
4 Ss gg ----------------------------------- X = 100 individuals
4 ss Gg ----------------------------------- X = 100 individuals
4 ss gg ----------------------------------- X = 100 individuals
The expected numbers are
100 flies with curved wings, ebony body, ss gg100 flies with curved wings, gray body, ss Gg100 flies with straight wings, gray body, Ss Gg 100 flies with straight wings, ebony body, Ss ggYou can learn more about linked genes at
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The Sun is the primary source of energy that drives all the biogeochemical cycles on Earth. Which statement best describes how the Sun’s energy powers the water cycle?
A.
Plants require energy from the Sun to perform photosynthesis.
B.
The Sun's heat reflects off ice sheets near the polar caps, reducing the overall temperature of Earth.
C.
Heat from the Sun drives evaporation, turning water on Earth's surface into water vapor.
D.
Energy from the Sun provides the warmth necessary for cold-blooded animals to survive.
Answers
Answer: A
Explanation:
Answer:
C) Heat from the Sun drives evaporation, turning water on Earth's surface into water vapor.
Explanation:
The question is discussing water cycle, so the answer must be something to do with water. Option A talks about to photosynthesis in plants, which is not directly related to the water cycle. Option B discusses earth temperature, which is again not related to the water cycle. Finally, option D talks about the living requirements for cold blooded, again not related to water cycle. That leaves option C.
if the wet bulb depression is 3 degrees and the dew point is 24 degrees, what is the relative humidity?
Answers
if the wet bulb depression is 3 degrees and the dew point is 24 degrees, relative humidity would be approx. 66%
What is relative humidity?
Relative humidity, often expressed as a percentage, indicates a present state of absolute humidity relative to a maximum humidity given the same temperature. It is a measure of how much water vapor is in a water-air mixture compared to the maximum amount possible.
Moreover, it measures the density of water vapor in a space relative to the temperature in the same space.
Calculate relative humidity RH using the formula, RH = 100 × {exp[17.625 × Dp/(243.04 + Dp)]/exp[17.625 × T/(243.04 + T)]}
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What organism that does photosynthesis will you have in your aquaponics system?
Answers
Hello! In an aquaponics system, you can have various organisms that perform photosynthesis, such as algae, duckweed, and aquatic plants like watercress, lettuce, and basil. These organisms are important in the system as they convert carbon dioxide into oxygen, which is essential for the survival of the fish in the system. Additionally, they also help in removing excess nutrients from the water, thereby improving water quality.
the burning of coal to generate has been good in some ways and bad in others the electricity has allowed for an improvement in many areas of life but the burning of coal is also responsible for a great deal of pollution which activity helps solve the pollution problem through the use of new technology
Answers
The burning of coal to generate has been good in some ways and bad in others. The electricity has allowed for an improvement in many areas of life but the burning of coal is also responsible for a great deal of pollution.
Pollution problem is solved through the use of new technology such as carbon capture and storage, high-efficiency, low-emissions coal-fired power plants, and renewable energy sources such as solar, wind, and hydroelectric power.Carbon capture and storage is a process that captures carbon dioxide emissions from sources such as coal-fired power plants, transports them to a storage site, and stores them permanently underground.
Carbon capture and storage technology is an important tool in reducing greenhouse gas emissions and mitigating climate change.High-efficiency, low-emissions coal-fired power plants are designed to produce electricity with less coal and fewer emissions than traditional coal-fired power plants. These power plants use advanced technologies to improve the efficiency of the combustion process and reduce the amount of greenhouse gas emissions produced.
Renewable energy sources such as solar, wind, and hydroelectric power produce electricity without burning fossil fuels, so they do not produce greenhouse gas emissions or contribute to climate change. These sources of energy are becoming increasingly popular as the technology advances and the cost of producing electricity from renewable sources continues to decrease.
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Will give brainliest
In the atmosphere pool, in which molecule is the carbon found
Answers
Show the reciprocal cross: A red-eyed female (homozygous) and a white-eyed male. How many offspring will have white eyes and what is their sex?
Answers
When we see the reciprocal cross between a red-eyed female (homozygous) and a white-eyed male,we observe that none of the offspring will have white eyes. Additionally, the sex of the offspring will be half male and half female since the ratio of males to females is 1:1.
The reciprocal cross for a red-eyed female (homozygous) and a white-eyed male can be shown as follows:Female (XrXr) x Male (XwY). Females have two X chromosomes and males have an X and a Y chromosome. Red eyes are dominant to white eyes; therefore, we use Xr to represent red eyes and Xw to represent white eyes.
The offspring are as follows:All F1 females are heterozygous (XrXw).All F1 males are hemizygous (XrY).The F1 generation will have red eyes since the dominant allele is present.
None of the F1 individuals will have white eyes as the recessive allele is not present in the F1 generation.
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Simulated number of birds in flock for 2nd generation
Answers
The Simulated number of birds in flock for 2nd generation is given in the table below.
Total Pieces Food Percentage Simulated Number of Birds
of Food Eaten in Flock for 2nd Generation
Flock X 57 19% 6
Flock Y 153 51% 15
Flock Z 90 30% 9
What is 2nd generation of crossing?The offspring of any bird is said to be produced due to the work of crossing two birds that are known to belong to the first generation and this often constitute the second generation.
Note that if two first generation red birds and blue pods were said to be crossed, the birds with red pods and plants with blue pods will appeared in the second generation in the ratio of 3:1.
The Food percentage is:
Flock X = 57/300 x 100% = 19%
Flock Y = 153/300 x 100% = 51%
Flock Z = 90/300 x 100% = 30%
Simulated Number of Birds in Flock for 2nd Generation will be;
Flock X = 19% x 30 = 6
Flock Y = 51% x 30 = 15
Flock Z = 30% x 30 = 9
The Simulated number of birds in flock for 2nd generation is said to be dependent on the amount or the outcome of the cross between flocks of the first generation.
Hence, the second generation will be:
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See full question below
Flock X Flock Y Flock Z Total Pieces of Food Eaten 57 153 90 Food Percentage* % % % Simulated Number of Birds in Flock for 2nd Generation** * Divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** Multiply the food percentage for each flock by the total number of birds (30).
Which letter would represent the Sun on the
HR-Diagram below?
A
D
B
A
Brightness
C
B
Temperature
E
D and E
с
The Science Duo
x
QUE
*
Answers
Answer: A
Explanation:
It has the highest temperature + brightness
A test liquid has a density of 1.1 g/mL. When you pour some of it into a cup of
water, what will happen (assuming that their natures are such that they don't
mix and that there is no chemical reaction between the two substances)?
a. The test liquid will float on top of the water in the cup.
b. The test liquid will sink to the bottom of the cup.
POUP
C. The test liquid will form a band in the middle of the cup.
d. The test liquid will coat the sides of the cup, leaving the water in the
center.
Answers
When some test liquid of density 1.1g/mL is poured into a cup of water, the test liquid will sink to the bottom of the cup, which is option B.
What is density?Density refers to the measure of the mass of matter contained by a unit volume.
An object sinks in water if its density is greater than that of water while the object will float on water if it has a lesser density than water.
According to this question, a test liquid has a density of 1.1 g/mL and is poured into a cup of water. This suggests that the liquid will sink to the bottom of the water because it has a higher density.
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Read the sentence. The girl wondered they were standing the grass was so tall. Select the relative adverbs in the correct order to fill in the blanks. where when which, where why, where
Answers
So the answers to fill in the blanks are why and where.
What would be the benefits and drawbacks of having oil or alcohol as your main body fluid when it comes to cooling?
Answers
Answer:
Blowing on your wet hand helps the water and alcohol to evaporate. The airflow will also support the heat transfer away from your skin.
Explanation:
0use a table and write three things: comparision RNA DNA
a. name
b. bases
c. sugar
d. molecule
e. strand
f. functions
please some one help me with this answer?
Answers
Answer:
DNA
a. deoxyribonucleic acid
b. adenine, guanine, cytosine, thymine
c. deoxyribose
d. polynucleotide chain
e. mostly double stranded
f. carries genetic information
RNA
a. ribonucleic acid
b. adenine, guanine, cytosine, uracil
c. ribose
d. polynucleotide chain
e. mostly single stranded
f. responsible for coding, decoding, regulation, and expression of genes
Which of the following is the most direct way in which plants benefit people’s lives?
They are fuel sources for underdeveloped regions.
They increase the values of homes.
They are the basis for many medicines.
They provide products for countries to trade.
Answers
Answer: They are the basis for many medicines
Simplify the following expression. (2x - 5)(6x2 - 6x - 11) A. 12x3 + 18x2 - 52x - 55 B. 12x3 - 42x2 + 8x + 55 C. 12x3 - 18x2 - 52x + 55 D. 12x3 - 42x2 + 8x - 55
Answers
Answer:
none of the following are correct.
Explanation:
the correct answer is 12x^3 - 42x^2 + 18x + 55
Answer:
None of the given answers are correct
Explanation:
What do tropical rainy and temperate marine climates have in common? dry winters very few trees very hot temperatures high levels of precipitation
Answers
Answer:
dry winters
Explanation:
Explain how consumers, such as otters, obtain the materials they need for cellular respiration. Be specific! How do these materials get from the environment to the mitochondria?
Answers
Explanation:
Consumers such obtain as need otters the materials they cellular foriration environment from resp the. these materials through They obtain the process of. ingestion Otters typically obtain energy-rich food such as fish, crabs, and clams, which like molecules glucose contain proteins, and, lipids, which for important are alliration cellular resp. These in broken down are the molecules system releasing, digestive energy and small molecules that are transportedter the ot’ intos, such cells as glucose oxygen and, which are both essential for cellular respiration.
Once these the in are molecules cells, are, they mitochond to transported powerhouse of the theria, where they cell take part- energy the inproducing process of cellulariration resp.uc Gloseria enters and the mitochond is broken down in a series of chemical that reactions release energy and such as ATP molecules form, which is the ofergy currency the cell. At the same time oxygen, is used help break down to the glucose, dioxide in as resulting by carbonproducts and. ATP The produced is used by the
Glycogen is an energy-storage molecule in humans. A hormone that is called insulin controls the storage of glycogen in the liver. Insulin is made up of amino acids.
Which statement correctly identifies the types of macromolecules that are described?
Answers
The statement that correctly identifies the types of macromolecules that are described is Glycogen is a carbohydrate, and insulin is a protein.
What are macromolecules?Macromolecules are very large molecules especially used in reference to large biological polymers.
Examples of macromolecules are as follows:
nucleic acidsproteinscarbohydrateslipidsAccording to this question, Glycogen is an energy-storage molecule in humans, however, a hormone called insulin, which is made up of amino acids, controls the storage of glycogen in the liver.
This suggests that glycogen is a carbohydrate molecule while insulin is a protein molecule due to their monomeric components.
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