Answers
Answer:
Molecules move up the concentration gradient in facilitated diffusion, which requires ATP to be used as molecules naturally move from high to low concentration
Explanation:
: )
Molecules move down their concentration gradient in facilitated diffusion through channels of proteins.
For most molecules, movement through the membrane, with a significant rate, is only possible by the presence of transporter proteins (integral membrane proteins, which recognize substances with a high specificity, accelerating their translocation) or channels of proteins.
Transport proteins allow the facilitated diffusion of molecules, moving them along the free energy gradient (concentration gradient, charge gradient, or both), in the direction of thermodynamic equilibrium.
When a carrier protein binds to a solute, the protein changes shape in such a way that it carries the solute to the other side of the membrane.
Facilitated diffusion is similar to simple diffusion, since the molecules move from a region of higher to a lower concentration of solutes.
For example, by facilitated diffusion, chlorine ions move down their concentration gradient into the cell through chlorine channels.
Therefore, we can conclude that many molecules are assisted by transporter proteins for their diffusion through the plasma membrane, a process known as facilitated diffusion, where the molecules descend through their concentration gradient.
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Related Questions
What is crossing-over, during what phase does it occur, and what is its significance?
Answers
Answer:
Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up. Hope this helps :)
Explanation:
5. Some advantages of sexual reproduction include: (select all that apply) *
a.genetic variation
b.improves chances of adapting to the envionment
c.helps species survive catastrophes
d.Certian genes work beter than other
Answers
Some advantages of the sexual reproduction include genetic variation. Genetic variation results into changes in the genetic material (DNA). Thus, the correct option is A.
What is Genetic variation?Genetic variation is the difference in the DNA (deoxyribonucleic acid) among individuals or the difference between different populations. The multiple sources of genetic variation include mutations and genetic recombination. Mutation is the changes in the genetic material of an organism which are the ultimate sources of genetic variation, however other mechanisms, such as genetic drift, contribute to it, as well.
Genetic diversity is important because it gives the species a better chance of survival through variations. However, the genetic diversity can be lost from the species when the populations get smaller and isolated from each other, which decreases a species' ability to adapt and survive better in the condition.
Therefore, the correct option is A.
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The sequential series of nucleotide triplets that are positioned in the A site of the ribosome during translation. A. Primary structure B. Exons C. Promoter D. Reading frame
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Answer:
The correct answer is D.
Explanation:
Reading frame is a sequence of codons determined by nucleotides that are read in groups of three from a specific translation start codon, that is, it is a linear sequence of codons or triplets in a nucleic acid. It is one of three possible reading alternatives of a nucleotide sequence of a series of triplets, this means that, in a double-stranded DNA molecule, there are 6 possible directions in which reading frames can be opened; three in the forward direction and three in reverse.
1.Name one living (biotic) and non- living (abiotic) means of seed dispersal
that is involved in helping plants with seed dispersal.
2. What is the advantage for a plant to produce fruit that are delicious to
animals?
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Answer:
1.abiotic- air and biotic-birds
2.producing delicious and good fruits for animals protect and help them to spread. delicious food attract animals like birds and other animals who are feed on them. when they eat the fruits and the seeds pass by unharmed. these way the seed dispersal occur of a plants.
Seed dispersal is a movement transport and spread of the seeds away from the parent plants. As plants have very limited mobility and transportation also includes some of the abiotic factors.
Winds, waves, gravity, and many more abiotic form of seed seed dispersal have been found. The biotic forms of seed dispersal include man, animals and birds. The more delicious is the plant the more is the chance of seed dispersal and hence is an added advantage to the plants. The seeds remain unharmed and many animals like to feed on them.Learn more about the living (biotic) and non-living (abiotic) means of seed dispersal.
brainly.com/question/13128124.
I've been stuck on this for a while, any help?
Answers
Explanation:
wheres the question? haha๑๑
Which mutation below would result in the greatest amount of change in the proteins that code for a particular trait?
(Please help I will reward)
A. inserting three nucleotides
B. deleting three nucleotides
C. deleting one codon
D. deleting two nucleotides
Answers
Answer:
Mutations are errors in codons caused by changes in nucleotide bases. Some mutations may not have much effect. For example, if the codon GAA becomes the codon GAG, because the genetic code is degenerate, the codon will still code for the amino acid glutamate. Such ineffectual mutations are called silent mutations. Some mutations, however, can have a huge affect on coding for amino acids, which can in turn affect what proteins are produced, which can have a profound effect on cellular and organismal function.
Difference between "Releasing" and "Inhibiting" hormones?
Answers
Releasing hormones cause downstream release of a hormone and Inhibiting hormones does the opposite.
Hope this helps you!
define asexual reproduction help plz
Answers
Which is an example of radiation?
A melting snowman sweats drop of water under a bright sun.
A smiling man roasts marshmallows over a wood fire.
A cook stirs vegetables in a frying pan over a gas burner.
Three pairs of bare feet and lower legs walk across black pavement.
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Answer:
A: melting snowman sweats drop of water under a bright sun
Answer:
The correct answer is A.
if a nutrient were in short supply in an ecosystem, how might it effect an organism
Answers
Answer:
Its leads to a deficiency
Explanation:
If a nutrient is in short supply in an ecosystem, it will lead to a deficiency of such nutrient in organisms that are in need of the nutrient.
Such a deficiency can lead to diseases in the ecosystem. If organisms that requires the nutrient cannot find an alternative, it will seriously affect their well being. Such deficiency often lead to very dire consequences for the balance of the ecosystem at large.During a discussion of body systems..which one is true?
F. Bone in the skeletal system contain bone marrow that mkaes white blood cells as part of the integumentary system.
G. Bones in the skeletal system work with muscles in the lympathic system to help you run.
H. Bones in the skeletal system help protect the lung organs in the respiratory system to exchange carbon dioxide for oxygen.
J. bones in the skeletal system store calcium that is used by reproductive system for communication.
Answers
Answer:
F should be the correct answer because that one say bones have bone marrow which is true and they make white blood cells
Suggest why it is still useful to keep Linnaeus' specimens.
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Answer:
As well as changing the way living things were classified, Linnaeus also changed the way they were named. He introduced a simpler method. ... This is rather like our system of giving people a first name and a surname. Each species has its own unique binomial which is the same throughout the world, thus avoiding confusion.
Explanation:
Using the above diagram, what does the body make in response to a vaccine?
Answers
Answer:
antibodies
Explanation:
Vaccines are like a training course for the immune system. They prepare the body to fight disease without exposing it to disease symptoms. When foreign invaders such as bacteria or viruses enter the body, immune cells called lymphocytes respond by producing antibodies, which are protein molecules
i dont know the answer to this please help
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Answer:
b is the correct answer
China rose is so beautiful.explain the colour and why rose is important for our life.
Answers
Answer:
Explanation:
China rose converts acidic solution to dark pink, basic solutions to green colour and has no colour change for neutral solutions. . The leaves, fruits and roots are decocted and used in the treatment of arthritis, boils, coughs etc. The fruit is applied to sprains, ulcers and wounds. The flower buds are used in the treatment of dysmenorrhoea, poor circulation, stomach pains and swellings.
any three importance of measurements
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descriptive, diagnostic, and predictive. Descriptive is the most basic form of measurement.
Vhat is the correct formula for trisilicon hexafluoride.
Answers
Answer:
xenon hexafluoride.
Explanation:
Answer:
Si₃F₆
Explanation:
What are functions of the roots in seed plants? (Choose all that apply)
stores food for the plant
aids in reproduction of the plant
anchors the plant
absorbs nutrients for the plant
Answers
Answer:
stores food for the plant
aids in reproduction of the plant
absorbs nutrients for the plant
PLS HELP ME!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
water/erosion- when water is in rocks/ minerals it erodes them and causes them to fall apart. water/deposition-water brings other materials into the land and they're sometimes formed into the rock i could even be previous weathered materiel. wind/erosion- wind can cause things to fall off of big boulders/mountains/rocks and cause them to fall apart. wind/deposition- wind can carry other materials onto the eroded land.
Explanation:
i passed grade 6 lol.
please help me with this question:)
Answers
Answer:
all cells so the last one
this is the pic
it's science btw
Answers
5? ig thats my guess not sure
The energy given off by burning fossil fuels can be measured in
A) Joules
B) calories
C) Hertz
D) electronvolts
Answers
Answer:
A
Explanation:
A
Answer:
A
Explanation:
Joules are used to measure energy
Which statement is evidence that the components of the genetic code are common to all organisms?
A. All animals have the same four nitrogenous bases in common with each other.
B. All eukaryotes have the same four nitrogenous bases in common with each other.
C. All living organisms have the same four nitrogenous bases in common with each other.
D. All prokaryotes have the same four nitrogenous bases in common with each other.
Answers
Answer:
C. All living organisms have the same four nitrogenous bases in common with each other.
Explanation:
Because all living organisms have the same 4 nitrogenous bases in common with each other but different sequences.
Conservation of mass the mass of a whole object
Answers
Answer:
Explore the Law of Conservation of Mass by demonstrating that the mass of a whole object is always the same as the sum of the masses of its parts. All objects and substances in the world are made of matter. ... Matter has two fundamental properties: matter takes up space and matter has mass.
Explanation:
What does this model imply about the relationship between two processes All but one choice could apply
Answers
4. Which part of the plant do we eat:
a. Cucumber:
b. Olive:
C. Broccoli:
d. Lettuce:
Answers
Describe what happens in the ocean with plate tectonics
Answers
Answer:
As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. ... This rock (basalt) becomes a new part of Earth's crust. Mid-Ocean Ridges. Seafloor spreading occurs along mid-ocean ridges—large mountain ranges rising from the ocean floor.
Help me please if u don't know don't answer please
Answers
Answer:
I would love to help but I got that answer wrong before and I keep trying over and over again
Explanation:
T/F Osmosis and diffusion are both examples of passive transport.
A.True
B.False
Answers
Both osmosis and diffusion are passive transport processes, meaning that no additional energy is needed for them to take place. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.
The given statement "Osmosis and diffusion are both examples of passive transport" is True.
Passive membrane transfer methods are the most direct. Passive transport is a phenomena that happens spontaneously and doesn't require the cell to use energy to move. Diffusion is the process by which chemicals travel passively from a region of higher concentration to a region of lower concentration. A concentration gradient is a difference in the concentration of one substance throughout a physical region.Transport that is done passively is called diffusion. Until the concentration is the same across the space, a single substance has a tendency to travel from an area of high concentration to an area of low concentration.Based on the gradient of water concentration across the membrane, osmosis is the mechanism by which water diffuses through a semipermeable membrane. Osmosis moves just water across a membrane, and the barrier restricts the diffusion of solutes in the water, whereas diffusion distributes material across membranes and into cells.Learn more about the passive transport with the help of the given link:
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IF you see something dark or with a pole like figure then run and hide if you hear what it says it already too late
Answers
Answer:
stop being spoopy im scurred (._.)
Explanation:
eh still not scarry
~(￣▽￣)~