Which of the following statements about facilitated diffusion is true?

Gated proteins control the rate of diffusion.

Molecules move up the concentration gradient.

ATP is required to move molecules through the protein channels.

Molecules move from an area of low to high concentration.

Answers

Answer 1

Gated proteins control the rate of diffusion


Related Questions

Which of these factors would most likely strengthen the effectiveness of

Answers

Answer:

Which of these factors would most likely strengthen the effectiveness of CITES?

Answer: Funding for on-the-ground enforcement

The energy to turn raw materials into food is powered by ________ and occurs in the plant’s ________.

A. water, mitochondria

B. glucose, leaves

C. light, chloroplasts

D. oxygen, chlorophyll

Answers

Answer:

C. light, chloroplasts

Explanation:

The muscle weakness of myasthenia gravis results from loss of acetylcholine receptors in the end-plate membrane. the motor neuron action potential being too small to shock the muscle fibers. insufficient acetylcholine release from presynaptic vesicles. excessive acetylcholinesterase that destroys the neurotransmitter. All of the answers probably contribute to the muscle weakness.

Answers

Answer:

The correct answer is ''loss of acetylcholine receptors in the end-plate membrane.''

Explanation:

Myasthenia gravis represents a human autoimmune disease. The neuromuscular junction abnormalities that occur in this disease are due to antibody-mediated processes. A reduction in the number of functional acetylcholine receptors on the postsynaptic membrane was established to contribute to the physiological abnormalities of myasthenia gravis. The reduction in receptors is due to immunological alterations directed against the acetylcholine receptor. Normally, when acetylcholine binds to its receptor, it opens allowing the rapid entry of cations, especially sodium. With this, the depolarization of the postsynaptic region of the muscle fiber occurs. Although acetylcholine is normally released in myasthenia gravis, it is not capable of causing an action potential in the muscle sufficient to initiate or weaken contraction. In patients with myasthenia gravis, failure to activate muscles is responsible for myasthenic fatigue. Most patients have elevated serum titers of antireceptor antibodies, which in turn accelerate receptor degradation.

why are virus considered to be nonliving

Answers

Viruses are complicated structures of proteins, lipids, nucleic acids and etc. They do not become living until they enter a cell. Without cells, viruses cannot multiply

In Florida, the building collapsed so far away that there was a cordon and no one was allowed to go near and police were standing guard. Is it weird that this kind of accident rescue doesn't let people get close?

Answers

i don’t think so they don’t want anymore people getting hurt

Define instar larva.​

Answers

Answer:

For most insect species, an instar is the developmental stage of the larval forms of holometabolous (complete metamorphism) or nymphal forms of hemimetabolous (incomplete metamorphism) insects, but an instar can be any developmental stage including pupa or imago (the adult, which does not moult in insects).

Explanation:

Necesitouna conclusion sobre la microbiologia y bacteriologia me ayudan pliss

Answers

Answer:

.

Explanation:

.uehwbgsbabwh hsbsbs

Todos los miembros de dicha familia tienen simpatía por las mismas ideas políticas

Answers

Answer:

¿todos los miembros de dicha familia tienen simpatia por las mismas ideas políticas? En las últimas elecciones presidenciales, ¿todos los miembros de dicha familia votaron por el mismo partido?¿Puedes preguntarles cómo votaban los integrantes de esa familia hace veinte años, y hace cincuenta años? ¿Qué ha cambiado? Escribe en tu cuaderno tus averiguaciones

Explanation:

Mi familia tiene diferentes ideales políticos y por eso votaron por diferentes partidos, antes el proceso era manual

En las elecciones actuales les he preguntado a los miembros de mi familia y no todos votaron por el mismo partido político unos creen en uno de los partidos políticos y otros creen en otros. Por lo tanto no todos simpatizan con las mismas ideas políticas

Anteriormente se votaba por medio de un papel escrito, entonces el proceso es mucho más lento y menos automatizado que con maquinas

No, cada familiar tiene una idea política distinta.

-no votaron por el mismo partido político pues siempre algunos presidentes hacen promesas y no las cumplen.

-las votaciones siempre las han realizado por numero de DUI, en institutos o en las calles frente a las alcaldías, tenían que buscar el numero de urna en la cual estaban asignados.

-el cambio a sido la  tecnología y el voto residencial, pues con la tecnología se ha hecho mas fácil el cuento de los votos y el voto residencial a permitido que se les facilite asistir al centro de votación.  

The state of maintaining a stable internal environment regardless of changing external conditions is called
.

Answers

Answer:

homeostasis

Explanation:

Answer:

homeostasis

Explanation:

ik

The increase in temperature with depth in the Earth is called the geothermal ____

Answers

Answer:

Geothermal gradient

Explanation:

Answer:

.energy..

Explanation:

Name the 5 systems of the human body.

Answers

Answer:

Skeletal System

Muscular System

Circulatory System

Endocrine System

Digestive System

are systems of the Human Body

Explanation:

Answer:

Digestive system

Circulatory system

Respiratory system

Nervous system

Skeletal system

Put the main steps of genetic engineering in the correct order.
1. Replicate the new organism
II. Isolate the genes from the specialist cell
III. Select the desired trait
IV. Insert the genes into the target organism
A. I, II, IV, III
B. II, I, IV, III
C. III, II, IV,

Answers

Answer:c

Explanation: hope this helps

The correct order is,

I. Replicate the new organism.

II. Isolate the genes from the specialist cell.

III. Select the desired trait.

IV. Insert the genes into the target organism.

What is genetic engineering?

Genetic engineering (also named genetic modification) exists as a system that operates laboratory-based technologies to change the DNA makeup of an organism. This may influence changing a single base pair (A-T or C-G), deleting a region of DNA, or adding a unique element of DNA.

Genetic engineers change, splice, eliminate, and rearrange genes to change an organism or classes of organisms. Genetic engineering, also called genetic modification or genetic manipulation exists in the modification and manipulation of an organism's genes operating technology.

Genetic engineering stands performed in three fundamental steps. These exist,

(1) The isolation of DNA components from a donor organism.

(2) The insertion of an isolated donor DNA fragment into a vector genome.

(3) The effect of a recombinant vector in a suitable host.

Hence, The accurate order is,

I. Replicate the new organism.

II. Isolate the genes from the specialist cell.

III. Select the desired trait.

IV. Insert the genes into the target organism.

Thus, Option C is correct.

To learn more about Genetic engineering refer to:

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If a tRNA molecule has an anticodon which reads AGGCCG, what was the codon on the mRNA molecule?

TCCGGA
UCCGGC
UCCGGU
CTTAAG

Answers

The codon is the sequence of nucleotides that carry genetic information that determines which amino acid should be added to the building protein. Nucleotides in this sequence pair with nucleotides from the tRNA  anticodon. In the exposed example, the correct codon pairing the given anticodon is is UCCGGC.

Before expplanation, let us review some theoretical frame to answer the question.

During protein synthesis, the ribosome reads mRNA in the 5´ to 3´ direction, while tRNA adds the correct amino acids to build the polypeptide, according to the codons readen in the mRNA chain. A codon is a short sequence of three nucleotides that store the genetic information for the aminoacids´ assembly. Each of the codons represents one of the 20 amino acids used to build the protein. Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid. tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.  

Once the new amino acid joins the growing protein, the binding between the amino acid and the tRNA breaks, releasing the molecule, which is now available to join another amino acid and repeat the cycle.  

Anticodon: Sequence of bases that pairs with the mRNA codon.  

Amino Acid: the amino acid that is codified by the mRNA codon.  

Remeber that:

Adenine forms pairs with Uracyl ⇒ A↔UGuanine pairs with Cytosine ⇒ C↔G

In the exposed example, the tRNA anticodon is AGGCCG, so we need to find its complement.

We know that Adenine pairs Uracyl, Guanine pairs Cytosine, and Cytosine pairs Guanine. So,

Anticodon → AGGCCG

     Codon → UCCGGC    

Related link: https://brainly.com/question/2897187?referrer=searchResults

Answer:

The codon is the sequence of nucleotides that carry genetic information that determines which amino acid should be added to the building protein. Nucleotides in this sequence pair with nucleotides from the tRNA  anticodon. In the exposed example, the correct codon pairing the given anticodon is is UCCGGC.

Before expplanation, let us review some theoretical frame to answer the question.

During protein synthesis, the ribosome reads mRNA in the 5´ to 3´ direction, while tRNA adds the correct amino acids to build the polypeptide, according to the codons readen in the mRNA chain. A codon is a short sequence of three nucleotides that store the genetic information for the aminoacids´ assembly. Each of the codons represents one of the 20 amino acids used to build the protein. Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid. tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.  

Once the new amino acid joins the growing protein, the binding between the amino acid and the tRNA breaks, releasing the molecule, which is now available to join another amino acid and repeat the cycle.  

• Anticodon: Sequence of bases that pairs with the mRNA codon.  

• Amino Acid: the amino acid that is codified by the mRNA codon.  

Remeber that:

Adenine forms pairs with Uracyl ⇒ A↔U

Guanine pairs with Cytosine ⇒ C↔G

In the exposed example, the tRNA anticodon is AGGCCG, so we need to find its complement.

We know that Adenine pairs Uracyl, Guanine pairs Cytosine, and Cytosine pairs Guanine. So,

Anticodon → AGGCCG

    Codon → UCCGGC    

Explanation:

Give a positive and a negative impact of an environmental law or regulation.

Answers

Answer:

negative impact

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.

positive impact  

Environmental regulations have greatly improved air and water quality, especially in areas that were dirtiest before regulation. Reducing airborne particulates is especially beneficial, saving thousands of lives and preventing millions of illnesses each year.

Why monosaccharides are sweet whereas polysaccharide are not​

Answers

Answer:

sweet-receptors bind to specific types of molecules, namely monosaccharides and disaccharides. Polysaccharides are not as sweet because they do not readily bind to the sweet-receptors on our tongue, as the other smaller molecules do

Answer:

ywetywte

Explanation:

gwhwhwhebebd

Need help!!!
what is an element?

~Thx ^_^

Answers

Answer:

In chemistry, an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei. Unlike chemical compounds, chemical elements cannot be broken down into simpler substances by chemical means.

describe the role of enzymes in seeds germination​

Answers

Answer:

Enzymes such as amylase ,protease and lipase are liable for solubilizing spare food materials in form of starch, protein and lipids correspondingly

in seed and deliver energy and other fundamentals food materials to germinating embryo.

The seed proteins are catalyzed by protease enzyme and break it into amino acid and peptides that a e transferred to growing embryo.

The amino acids obtained from metabolism of the proteins are further used in biosynthesis of enzymes,hormones,proteins, pyrimidines and Purine bases.

The starch is catalyzed by enzyme amylase that provides the food materials for growth and development of embryo . Similarly lipase are enzymes that are responsible for metabolism of the triacylglycerols into glycerols and fatty acids.This is also the source of energy for growing embryo

A car burns gasoline as it moves down the road. Which energy transformation
is the car performing?
A. Kinetic energy to chemical energy and light energy
B. Potential energy to sound energy and nuclear energy
C. Chemical energy to kinetic energy and thermal energy
D. Thermal energy to kinetic energy and nuclear energy

Answers

Answer:

A

Explanation:

A scientist wishes to create bacterial colonies on an agar plate for observation of growth. Unfortunately, directly adding bacteria from the original culture results in too many bacterial colonies to count. In order to create a solution of proper bacterial concentration for observation, the scientist performs a three-step 1:100 serial dilution of the original bacterial culture. What is the dilution factor of the final solution

Answers

Answer:

10⁶

Explanation:

A 1:100 serial dilution is a dilution in which the concentration decreases 100 fold (i.e., in each dilution the concentration of the culture must be multiplied by 10⁻²). The question above indicates that a three-step 1:100 dilution was applied, which means >> 10⁻² x 10⁻² x 10⁻² = 10⁻⁶. Moreover, the dilution factor can be calculated by dividing the volume of the diluted solution by the volume of the concentrated solution. The dilution factor is the inverse of dilution, thereby in this case this value is equal to 10⁶ (dilution = 10⁻⁶ >> dilution factor = 10⁶).

___ is the ability of an organism to change internally to externally in relation to its environment

Answers

pretty sure it’s homeostasis

Answer:

The ability of an organism to change internally or externally in relation to changes in the environment is called Homeostasis. (I'm pretty positive this is the answer and I hope you have an awesome day :)

plz anyone awncer this ​

Answers

Answer:

Vasoconstriction is the opposite of vasodilation. While vasodilation is the widening of your blood vessels, vasoconstriction is the narrowing of blood vessels. It's due to a contraction of muscles in the blood vessels. When vasoconstriction occurs, the blood flow to some of your body's tissues becomes restricted

Homeostasis is the maintenance of a stable internal environment.

I Hope this will help you if not then advance sorry :)

Pros and cons about lobsters not feeling pain…

Answers

Answer:

The pro of not feeling pain is not feeling pain and the con is pain help you survive like hot hand on stove if u don’t feel pain you probably won’t take your hands off and it can cause death and stuff (u probably know what I mean I hope)

Explanation:

The compound 2,4-dinitrophenol (DNP) is a lipid soluble compound that has been used as a weight loss agent. It functions this way by causing the inner mitochondrial membrane to become leaky with respect to protons. Which result might be expected if cells treated with DNP were examined in detail

Answers

Answer:

ATP production would be slower in these cells than in untreated cells

Explanation:

Oxidative phosphorylation is the third stage of cellular respiration, which occurs in the mitochondria of animal and plant cells. Oxidative phosphorylation represents the most efficient pathway to generate energy in animal cells by the production of Adenosine triphosphate (ATP) as a consequence of the transfer of electrons from nicotinamide adenine dinucleotide (reduced form) (NADH) or flavin adenine dinucleotide (reduced form) (FADH2) to molecular oxygen (O2) through a sequential series of electron carriers. The 2,4-Dinitrophenol (DNP) poison is an uncoupler of oxidative phosphorylation that carries protons across the mitochondrial membrane, thereby leading to a rapid consumption of energy without the production of ATP.  This mitochondrial uncoupler (DNP) has been used as a dieting drug during the 30's decade (1930), but was rapidly banned due to its side effects, which include, among others, tachycardia, hyperthermia, tachypnea, and metabolic acidosis.

what is the equation for cellular respiration? and which items are the reactants and which items are the products?

Answers

Answer:

C6H12O6 + O2 ------> CO2 + H2O + ATP. The reactants are oxygen and glucose. The products are ATP, CO2, and water.

OAmalOHopeO

The Paleo-Indian skull of Kennewick Man, dated to 8,400 years B.P. is long and narrow; the face and jaws are robust, is an anatomical difference with late prehistoric and living Native Americans that have short, round skulls with gracile faces. In what state of the USA was Kennewick Man located

Answers

Answer:

Washington, near Seattle

Explanation:

Found in 1996 in Columbia park at the bottom of the Columbia River

This is land currently owned by the US Army Corps of Engineers

Single Strand Binding Proteins are responsible for:
A. keeping the strands separated during replication.
B. unwinding and separating the DNA strands.
C. adding the new bases.
D. linking the short sections of the lagging side.
Reset Selection

Answers

Answer:

A. keeping the strands separated during replication

Explanation:

Prior to the process of DNA replication, the double-stranded DNA must first be separated into single strands by an enzyme called DNA helicase. This is done so that each DNA strand can serve as template for the synthesis of another.

After the unwinding and separation, the single strands still need to be kept apart during the synthesis of new nucleotides by DNA polymerase. This role of keeping the strands separated during replication is carried out by SINGLE STRAND BINDING PROTEINS.

Cerebrospinal fluid (CSF) is formed by capillary knots called the ________________________, which hangs inside the ________________________ of the brain. Ordinarily, CSF flows from the lateral ventricles into the ____________ ventricle and then through the _______________ into the fourth ventricle. Some of the fluid continues down the ________________________ of the spinal cord, but most of it circulates into the ________________________ by passing through three tiny openings in the walls of the ________________________. As a rule, CSF is formed and drained back into the venous blood at the same rate. If its drainage is blocked, a condition called ________________________ occurs, which results in increased pressure on the brain.

Answers

Answer:

1. Choroid Plexuses

2. Ventricles

3. third

4. Cerebral Aqueduct

5. Central Canal

6. Subarachnoid space

7. Forth Ventricle

8. Hydrocephalus

Explanation:

Cerebrospinal fluid formed by capillary knots called Choroid Plexuses which is hanged inside ventricles. There are four ventricles in which CFS flows from lateral to third and from cerebral aqueduct to forth ventricle. The meninges covers spinal cord which extends more inferiority to form a sac from which cerebrospinal fluid can be withdrawn without damage to spinal chord.

Using the following nucleotide sequence, predict the complementary strand sequence:
5'-TTAAACCCGTTGGAAC-3'



5'-AATTTGGGCAACCTTG-3'

3'-AATTTGGGCAACCTTG-5'

03-CCGGGTTTACCAAGGT-5'

0 3'-TTAAACCCGTTGGAAC-5'

Answers

The predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

What is DNA?

Deoxyribonucleic acid or DNA is a double helix molecule composed of two complementary strands.

According to the base pair rules, Adenine pairs with Thymine and Guanine pairs with Cytosine.

In conclusion, the predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

Learn more about base complementarity here:

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Answer:

Your answer would be AATTTGGGCAACCTTG-5′

Explanation:

Unique feature of osmosis is that
(1) energy is required
(2) it involves movement of solutes
(3) it occurs across membranes only
(4) it is seen only in animals

Answers

Answer:

I believe the answer is (3)

Explanation:

"Osmosis is a special type of diffusion, namely the diffusion of water across a semipermeable membrane"

"Osmosis only occurs with a semipermeable membrane"

Khan and sciencedirect

Which of the following animals has a solitary lifestyle ? A.sika deer B.elephant C. zebra D.rhino

Answers

Answer:

A sika deer

my ans is right or wrong

Answer: A: Sika Deer

Explanation: Adult males are solitary for most of the time and will band together sometimes.

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Having just turned 16 years old, your friend has their mind set on buying a new car by the time they turn 20 years old. They can afford to save $440 per month. They place the money into an annuity that pays 5.5% per year, compounded monthly. How much will they have to spend on a car after 4 years? Find 3rd and 5th form by using nth term formula tn=a+(n-1)d when tn=a+(n-1)d when a=2 and d=3. Teresa has $451 in a personal bank account,and then withdraws $10 per week.Andrew has $10 in a personal bank account,and then deposits $53 earned from dog grooming each week.After how many weeks will they have the same amount of money in the bank. A large textile mill had a spinning department, a weaving department, a dyeing department and a printing department. Activities were grouped based on the area. For example, all activities related to spinning were grouped to form the spinning department. What type of departmentalization below does this illustrate? Customer Process Geographic Form A. What are the approximate coordinates of the point of intersection of the twographs? What does this mean in terms of the two mold populations?B. The area of mold A is given by the function Ad) = 100 -0.25 .When will thismold cover 1000 square millimeters? Explain your reasoning. 30 POINTS!! Will mark brainliest if correct answer and all work is shown! What mass in grams of tin would be required to completely react with 1.30 L of 0.750 M HBr in the following chemical reaction? Sn(s) + 4 HBr(aq) SnBr (aq) + 2 H (g) Suppose you roll a die. Find the probability of the given event. Simplify your answer. P(a number less than 7) 1. A soccer team is to be selected from a group of 24 players. Of them, one-third is below 16 years of age, one-fourth is in the age group 16 to 18 years and the remaining are above 18 years. (a) What fraction of players is above 18 years of age? (b) If all players of age above 18 are selected, how many players are above 18 years of age? A 3.1-mole sample of an ideal gas is gently heated at constant temperature 320 K. It expands from initial volume 23 L to final volume V2. A total of 1.7 kJ of heat is added during the expansion process. What is V2? Let the ideal-gas constant R = 8.314 J/(mol K). x(x+3)(x+3)=0 Plz I need this fast! A window has the shape of a semicircle. The base of the window is measured as having diameter 64 cm with a possible error in measurement of 0.1 cm. Use differentials to estimate the maximum error possible in computing the area of the window. a. 1.3 cm^2 b. 2.4 cm^2 c. 2.6 cm^2 d. 3.2 cm^2 e. 1.6 cm^2 f. 1.2 cm^2 what do you mean by lack of transparency 1. Open the start file EX2019-ChallengeYourself-9-3. The file will be renamed automatically to include your name. Change the project file name if directed to do so by your instructor, and save it.2. If the workbook opens in Protected View, click the Enable Editing button in the Message Bar at the top of the workbook so you can modify the workbook.3. Use Consolidate to create a summary of real estate sales for all property types. Place the consolidated data on the Summary worksheet in cells B3: C15. Use the Average function to consolidate the data from cells B2: C14 in the Condo, Townhouse, and Single Family worksheets. Include links to the source data.4. Import individual sales data from the tab-delimited text file Select Sales Data 2019-2020. Import the data as a table in cell A1 of the Select Sales worksheet.5. Remove the data connection when the import is complete.6. In the Select Sales worksheet, add data validation to restrict values in the House Type columns (cells B2: B139) to the values in the cell range named PropertyTypes. Include a drop-down list of values in the cells to assist in data correction.7. Add the following input message to cells B2:B139: Select a property type from the list.8. Add the following error alert to cells B2:B139: Not a valid property type.9. Apply data validation circles to any values that violate the data validation rules you just created.10. Add a comment to cell B1 in the Select Sales worksheet that reads: This needs to be fixed.11. Add a hyperlink from cell B1 in the Select Sales worksheet to link to the named range (defined name) PropertyTypes. Test the link.12. Use Flash Fill to add a new column of data to the Select Sales worksheet to display the number of bedrooms/the number of bathrooms.a. In the Select Sales worksheet, cell F1, type the heading: BR/BAb. Complete the column of data using this pattern in cell F2: 1 BR/1 BAYou will need to enter at least two samples in order for Flash Fill to suggest the correct autofill data. Check your work carefully. Sales Summary 2019-2020 Number of Sales Average Selling Price 123 One BR, One BA 4 One BR, Two BA + 5 Two BR, One BA 6 Two BR, Two BA 7 Two BR, Two BA + 8 Three BR, One BA 9 Three BR, Two BA 10 Three BR, Three BA + 11 Four BR, One BA 12 Four BR, Two BA 13 Four BR, Three BA+ 14 Five BR-. One BA 15 Five BR+ Two BA+ 16 17 18 19 20 21 22 23 24 How are novels and short stories different? if x=2 and y=3. What is x*y/xy+x*y 9.A rocket is launched from the top of a 76-foot cliff with an initial velocity of 135 ft/s. a. Substitute the values into the vertical motion formula h = 16t2 + vt + c. Let h = 0. b. Use the quadratic formula to find out how long the rocket will take to hit the ground after it is launched. Round to the nearest tenth of a second.A. 0 = 16t2 + 135t + 76; 0.5 sB. 0 = 16t2 + 76t + 135; 9 sC. 0 = 16t2 + 76t + 135; 0.5 sD. 0 = 16t2 + 135t + 76; 9 s Help fast pleaseeeeeeee Compare and contrast Erikson's and Freud's developmental theories. Electrophilic addition reaction of conjugated dienes that occur at high temperature and/or long reaction times (reversible conditions) are said to be under kinetic control. Group of answer choices True False Make a List of atleast 15 monuments around the world and write the name of the stone used to make it